Where Prices Went Up — and Why They Never Came Back Down: Inflation Under Trump, Biden, and Trump Again

Where Prices Went Up — and Why They Never Came Back Down
By Will Campbell · October 15, 2026 · Cost of Living Fact Check

Where Prices Went Up — and Why They Never Came Back Down: Inflation Under Trump, Biden, and Trump Again

A viral graphic says average inflation was 1.9% under President Trump’s first term, 5.0% under President Biden, and 2.9% so far in Trump’s second term. Government data shows those numbers are right. This report goes further: month by month, it shows when prices actually rose, why they have not fallen back, how much of today’s price level was set between 2021 and 2024, and what prices would look like if those four years had gone differently.

🕐 12 min read 📊 Data through September 2026 (released October 14, 2026) 📄 Sources: BLS, NBER, Federal Reserve, CBO, EIA
21.4%
Price Rise, Biden Term
Jan 2021 to Jan 2025
9.1%
Peak Inflation
June 2022, a 40-year high
59.6%
Of the Price Rise Since 2017
Occurred Jan 2021–Jan 2025
$140.39
Cost of a $100 Basket
2016 prices, as of Sep 2026

Executive Summary

The key findings of this report at a glance

This report checks a viral inflation graphic against Bureau of Labor Statistics data, then follows prices month by month from 2008 through September 2026. The main findings: [BLS, 2026a]

  • The graphic is accurate. Average 12-month inflation was 1.88% under Trump’s first term, 4.98% under Biden, and 2.94% under Trump’s second term through August 2026 (2.99% with September). Section 1
  • The inflation rate is not the price level. An average rate tells you how fast prices climbed, not how high they climbed. A basket that cost $100 at 2016 prices cost $108.99 in January 2021, $132.36 in January 2025, and $140.39 in September 2026. Section 2
  • The steepest increases came during the Biden term. Prices rose 21.4% from January 2021 to January 2025, and inflation peaked at 9.1% in June 2022. Of the 26 months since 2008 with price jumps above 0.5%, 14 fell in the Biden term, as did 9 of the 15 largest. Groceries rose 22.7% and gasoline 40.4%, and the pattern holds with gasoline taken out. Sections 3–4
  • Most of the price increase since 2017 occurred under Biden. Prices rose 38.75% from January 2017 to September 2026. Of that increase, 59.6% came between January 2021 and January 2025, about three times the share of either Trump term, and about 40% came in the two years Democrats controlled both chambers of Congress. Section 9
  • Both supply shocks and stimulus drove the surge. Federal Reserve research finds pandemic income support added about 3 percentage points to inflation by the end of 2021. The American Rescue Plan passed without a single Republican vote. The Inflation Reduction Act came after the peak and, by CBO’s estimate, had a negligible effect on inflation. [Jordà et al., 2022] [CBO, 2022] Section 5
  • Prices have not come back down, and they rarely do. Since the 2022 peak, overall prices dipped in only 3 months, all by tiny amounts. Since 1950 the yearly price change has turned negative only three times, and the two larger episodes came with recessions. [NBER, 2023] Section 6
  • Trump’s second term added a smaller increase, much of it from the Iran war. Inflation averaged 2.62% before the war began on February 28, 2026; gasoline then jumped 21.2% in March. Leaving out energy, prices are up 4.7% since January 2025, compared with 20.6% over the Biden term. [CRS, 2026] Section 7
  • Without the Biden-era increase, prices would be 11% to 18% lower today. Keeping every actual change since January 2025, the $140.39 basket would cost $115.60 if prices had been frozen, $124.56 at the Trump I pace, or $125.13 at the Federal Reserve’s 2% target. These are hypothetical scenarios, not estimates of any one policy’s effect. Section 8
Bottom Line

The data show when prices rose, not who caused every increase. They do show that most of today’s higher price level was set from 2021 to 2024, that the laws passed in those years did not bring it down, and that families are still paying it. Section 9

1

Checking the Graphic First

The numbers are accurate. Here is what they do and do not tell you.

The graphic circulating on social media, credited to MRC with “Source: bls.gov,” lists average inflation of 1.9% for Trump’s first term, 5.0% for Biden, and 2.9% for Trump’s second term. To test it, we downloaded the Consumer Price Index for All Urban Consumers (CPI-U) directly from the Bureau of Labor Statistics and averaged every monthly 12-month inflation reading in each term, counting each term from the first full month in office. [BLS, 2026a]

The result: Trump I averaged 1.88%, Biden averaged 4.98%, and Trump II averaged 2.94% using data available through August 2026, when the graphic was posted. Rounded to one decimal place, all three match. With September’s data, released October 14, Trump II now averages 2.99%, which rounds to 3.0%. [BLS, 2026b]

Verdict on the Graphic

Accurate as published. Two clarifications matter. First, Trump’s second term is only 19 months old, so its average can still change. Second, an average inflation rate tells you how fast prices were climbing, not how high they climbed. That difference is the most important idea in this report, and it is explained in Section 2.

Averages can hide a lot, so the chart stack below also shows every individual month. Trump I readings stayed in a narrow band between 0.12% and 2.95%. Biden-term readings ranged from 1.68% to 9.06%, with 40-year highs in 2022. Trump II readings have ranged from 2.31% to 4.25%.

The Graphic’s Numbers Match BLS Data
Gray bars are the graphic’s values. Navy bars are our calculation from BLS data through August 2026; the gold bar adds September 2026.
Chart
Average 12-Month Inflation by Presidential Term
Mean of monthly CPI-U 12-month percent changes, not seasonally adjusted
Every Monthly Reading, by Term
Each dot is one month’s 12-month inflation rate. The dash marks each term’s average.
Chart
Spread of Monthly Inflation Readings
CPI-U 12-month percent change for each month in each term
Term Statistics
Summary statistics behind the chart.
Table
Monthly 12-Month Inflation by Term
Count, mean, median, range, and standard deviation of monthly readings
Term Months Mean Median Low High Std. Dev.
Trump I (Feb 2017–Jan 2021) 48 1.88% 1.92% 0.12% 2.95% 0.61
Biden (Feb 2021–Jan 2025) 48 4.98% 4.55% 1.68% 9.06% 2.17
Trump II (Feb 2025–Sep 2026) 19 2.99% 2.82% 2.31% 4.25% 0.57
2

Inflation Rate vs. Price Level: The Idea That Explains Everything

Lower inflation means prices are rising more slowly, not that they are falling.

Two Different Measurements

The price level is what things cost today. The inflation rate is how fast that cost is rising, usually measured against the same month a year earlier. When inflation “comes down” from 9% to 3%, prices are still going up, just more slowly. The higher prices stay, and the new increases stack on top of them.

Think of a staircase. The inflation rate is the height of each new step. The price level is how high you have climbed. During 2021 and 2022 the steps were the tallest in 40 years, peaking at 9.1% in June 2022. The steps got shorter in 2023 and 2024, but the staircase never went back down. Every family that felt the jump at the grocery store or the gas pump is still standing on that higher step. [BLS, 2026a]

The second and third tabs below translate this into dollars. A basket of everyday goods and services that cost $100 at 2016 prices cost $101.18 when Trump took office in January 2017 and $108.99 when Biden took office in January 2021. It cost $132.36 when Biden left office in January 2025, and costs $140.39 as of September 2026. Put the other way, $100 today buys what $71.23 bought in 2016.

The Speed of Price Increases
Headline inflation (all items) and core inflation (excluding food and energy), with the Federal Reserve’s 2% target for reference. Shaded band = Biden term.
Chart
12-Month Inflation Rate, January 2016 – September 2026
CPI-U percent change from the same month a year earlier, not seasonally adjusted
The Price Level Climbs and Stays
What a basket that cost $100 at 2016 prices costs in each month. The slope is steepest during the Biden term, and the line never comes back down.
Chart
Cost of a $100 (2016) Basket of Goods and Services
CPI-U all items, scaled so the 2016 average equals $100
What Your Dollar Buys
The flip side of the basket chart: how much 2016-style buying power $100 of today’s money holds.
Chart
Purchasing Power of $100, in 2016 Dollars
100 × (2016 average CPI ÷ current CPI)
3

Where the Price Increases Actually Happened

Every month since January 2008, across five presidential terms

This is the most important chart in this report. It shows the month-to-month change in prices for every month from January 2008 through September 2026, using the seasonally adjusted CPI, which removes normal seasonal swings so months can be compared fairly. The bars are each month’s increase. The dark line is the cumulative price level that results. [BLS, 2026a]

Three things stand out:

  1. The tallest bars cluster in 2021 and 2022. Since 2008 there have been 26 months in which overall prices rose more than half a percent in a single month. 14 of them came during the Biden term, and the other 12 are spread across the other five terms, almost 15 years in all. Of the 15 largest monthly increases in the entire period, 9 happened under Biden.
  2. The price line bends sharply upward in 2021. Before 2021 the line climbs at a steady, gentle slope. From 2021 through 2022 it turns steeply upward, then resumes a gentler climb from a much higher starting point.
  3. The line essentially never goes down. Since the inflation peak in mid-2022 there have been only 3 months in which overall prices dipped at all: Jul 2022 (-0.01%), Jun 2024 (-0.04%), Jun 2026 (-0.42%). None came close to reversing the surge.

The “without gasoline” view leaves gasoline out of the chart so the smaller monthly changes in overall prices and food at home are easy to see. Gasoline swings 10% or 20% in a single month, which flattens everything else on the same scale. The “with gasoline” view adds gasoline in its own panel. The last two tabs total the change within each term and list the largest months.

Monthly Price Increases and the Price Level, 2008–2026 (Without Gasoline)
Bars (left axis): all-items monthly change. Red line (left axis): food at home. Dark line (right axis): all-items price level, December 2007 = 100.
Chart
Monthly Price Increases, January 2008 – September 2026
Seasonally adjusted CPI-U, percent change from prior month, with cumulative price level
Gasoline’s Monthly Swings, 2008–2026
Gasoline monthly change on its own scale. Note the 2008 collapse, the spring 2020 pandemic collapse, the 2022 spike, and the March 2026 Iran war spike.
Chart
Gasoline Monthly Price Change, January 2008 – September 2026
Seasonally adjusted CPI-U gasoline (all types), percent change from prior month
Total Price Change Within Each Term
From the December before each term to the term’s final December. Use the legend to hide or show gasoline; click a legend item to toggle it.
Chart
Cumulative Price Change by Term, 2008 – September 2026
Seasonally adjusted CPI-U, December-to-December percent change
Table
Cumulative Price Change by Term
Same values as the chart, including all items less energy
Term All Items Food at Home Gasoline All Items Less Energy
Bush 2008 0.0% +6.6% -43.2% +2.4%
Obama I +9.4% +6.5% +98.4% +6.9%
Obama II +4.9% +1.6% -32.7% +7.4%
Trump I +8.0% +6.5% +1.2% +8.3%
Biden +21.2% +22.7% +40.4% +20.2%
Trump II* +5.9% +3.7% +28.5% +4.8%
The Largest Single-Month Increases Since 2008
Ranked by the all-items monthly change, with the term it fell in, followed by a month-count summary for each term.
Table
Top 15 Monthly Increases in Overall Prices, 2008–2026
Seasonally adjusted CPI-U month-over-month change
Rank Month Term All Items Food at Home Gasoline
1 June 2022 Biden +1.26% +1.07% +10.3%
2 March 2022 Biden +1.12% +1.31% +16.3%
3 June 2008 Bush 2008 +1.05% +0.72% +11.0%
4 October 2021 Biden +0.96% +1.00% +4.9%
5 May 2022 Biden +0.95% +1.40% +5.2%
6 March 2026 Trump II +0.87% -0.16% +21.2%
7 November 2021 Biden +0.86% +0.90% +6.5%
8 June 2021 Biden +0.85% +0.79% +2.8%
9 June 2009 Obama I +0.83% -0.05% +20.3%
10 July 2008 Bush 2008 +0.71% +1.26% +3.9%
11 February 2022 Biden +0.69% +1.31% +3.3%
12 December 2021 Biden +0.69% +0.57% +2.8%
13 May 2021 Biden +0.66% +0.36% +1.4%
14 September 2026 Trump II +0.65% -0.07% +9.1%
15 April 2026 Trump II +0.64% +0.68% +5.4%
Table
Monthly Price Changes Summarized by Term
Average monthly change, months above 0.5%, months with falling prices, and largest month
Term Months Avg. All Items Avg. Food at Home Months > 0.5% Months < 0 Largest
Bush 2008 12 0.00% 0.54% 3 4 1.05%
Obama I 48 0.19% 0.13% 3 9 0.83%
Obama II 48 0.10% 0.03% 1 13 0.54%
Trump I 48 0.16% 0.13% 2 8 0.51%
Biden 48 0.40% 0.43% 14 2 1.26%
Trump II 19 0.29% 0.20% 3 1 0.87%
4

Zooming In: The Pandemic Era and the Last Two Years

The same data rebased to December 2019 and December 2023, with and without gasoline

Zooming in makes the timing clearer. With prices set to 100 in December 2019, overall prices were only about 1% higher at the end of 2020. From there it rose almost continuously, and the steepest part of the climb came from the spring of 2021 through the summer of 2022. Food at home rose even faster than overall prices. By September 2026 overall prices were about 30% above their December 2019 level and food at home about 32% above. [BLS, 2026a]

Gasoline tells a different story. It is the most volatile thing households buy. It collapsed in spring 2020, soared to about $5.06 a gallon in June 2022, the highest in the BLS series, and drifted down to around $3 by early 2026, before the Iran war pushed it back up (see Section 7). Showing it in its own view keeps its swings from hiding the steady climb in everything else. [BLS, 2026c]

The 2024–2026 view shows what has happened since. Overall prices kept rising at a slower, steadier pace through 2024 and 2025. In spring 2026 gasoline jumped and overall prices rose faster for a few months. Food at home has been nearly flat since spring 2026.

Prices Since December 2019 (Without Gasoline)
All items and food at home, December 2019 = 100.
Chart
Consumer Price Level, January 2020 – September 2026
Seasonally adjusted CPI-U rebased to December 2019 = 100
Prices Since December 2019 (With Gasoline)
Adds gasoline. Its swings dwarf the other two lines.
Chart
Consumer Price Level Including Gasoline, January 2020 – September 2026
Seasonally adjusted CPI-U rebased to December 2019 = 100
Monthly Changes Since 2020 (Without Gasoline)
The run of large monthly increases from spring 2021 through mid-2022 stands out clearly at this scale.
Chart
Monthly Consumer Price Change, January 2020 – September 2026
Seasonally adjusted CPI-U, percent change from prior month
The Last Two Years (Without Gasoline)
December 2023 = 100. Prices kept climbing at a slower pace, from the higher level set in 2021–2022.
Chart
Consumer Price Level, January 2024 – September 2026
Seasonally adjusted CPI-U rebased to December 2023 = 100
The Last Two Years (With Gasoline)
Gasoline fell through most of 2024–2025, then jumped in March 2026.
Chart
Consumer Price Level Including Gasoline, January 2024 – September 2026
Seasonally adjusted CPI-U rebased to December 2023 = 100
Everyday Grocery Prices, 2008–2026
Average retail prices for six staples. Click a legend item to hide or show it.
Chart
Average Retail Prices of Grocery Staples, December 2007 – September 2026
BLS average price data, U.S. city average, dollars per unit, not seasonally adjusted
5

What Drove the 2021–2022 Surge

What the research shows, and what the data can and cannot prove

No single cause produced the surge, and honest analysis has to say so. The research most often cited, including work by economists at the Federal Reserve, points to several forces acting together:

  • Government spending and relief checks. Researchers at the Federal Reserve Bank of San Francisco estimated that U.S. pandemic income-support measures added about 3 percentage points to U.S. inflation by the end of 2021. That is a major reason U.S. inflation ran higher than in other wealthy countries. [Jordà et al., 2022] The largest of these measures, the $1.9 trillion American Rescue Plan with its $1,400-per-person checks, was signed in March 2021. It passed the House 220–211 without a single Republican vote and the Senate 50–49. [Congress.gov, 2021] [House Clerk, 2021]
  • Supply shocks. Shipping bottlenecks, factory shutdowns, and the shift in spending from services to goods pushed prices up directly. A San Francisco Fed analysis attributed roughly half of the run-up to supply factors and about one-third to demand. [Shapiro, 2022]
  • Energy and the war in Ukraine. Russia’s February 2022 invasion sent energy and food commodity prices soaring. Energy prices were up 41.6% from a year earlier in June 2022. [BLS, 2026a]
  • A tight labor market. Former Fed Chair Ben Bernanke and Olivier Blanchard found that most of the 2021–2022 rise came from price shocks. They also found that fiscal policy added to it by boosting demand for goods already in short supply, and that tight labor markets became a bigger factor as the other shocks faded. [Bernanke & Blanchard, 2023]
What the Data Can and Cannot Show

The charts show when prices rose. Timing alone cannot assign an exact share of the increase to any one president, law, or event. Some relief spending began under President Trump in 2020: the CARES Act’s $1,200 checks and December 2020’s $600 checks. The Federal Reserve, not the president, sets interest rates. What the record does show is that the largest stimulus, passed in early 2021, came right before the steepest climb in prices, and that research credits that spending with a meaningful part of the increase.

One more fact matters for anyone weighing the record. The 2022 law branded the “Inflation Reduction Act” was signed in August 2022, two months after inflation had already peaked. The Congressional Budget Office concluded it would have a “negligible effect on inflation” in 2022 and an effect of no more than 0.1 percentage point either way in 2023. [CBO, 2022] Inflation did come down after mid-2022 as supply chains healed, energy prices fell back, and the Federal Reserve raised interest rates. But nothing passed in Washington brought prices back down to where they had been.

Major Events on the Inflation Timeline
12-month inflation with dated markers. Solid gold lines are federal laws; dashed gray lines are other events. Markers show order of events only.
Chart
Inflation and Key Events, January 2016 – September 2026
CPI-U 12-month percent change, not seasonally adjusted, with event dates
Which Categories Drove It
Energy spiked first and hardest. Food and core prices followed. Shelter rose more slowly but stayed high longest.
Chart
Inflation by Component, January 2016 – September 2026
CPI-U 12-month percent change for energy, food, shelter, and core
Short-Run Momentum
The 3-month and 6-month rates show the turn sooner than the 12-month rate. The surge was building by spring 2021.
Chart
Inflation Momentum: 3-, 6-, and 12-Month Rates
Headline CPI-U; 3- and 6-month rates annualized from the seasonally adjusted index
Supply-Chain Pressure Led the Way
The New York Fed’s supply-chain index spiked in 2020–2021 and peaked before inflation did.
Chart
Supply-Chain Pressure vs. Inflation (Standardized)
Both series in standard deviations from their January 2016 – September 2026 average
6

Why Prices Don’t Come Back Down

More than a century of price data shows falling prices are rare, and they usually come with a recession.

Many people expect that once inflation “is beaten,” prices will return to where they were. History says otherwise. We checked every month of CPI data back to 1913 against the official recession dates kept by the National Bureau of Economic Research. [BLS, 2026a] [NBER, 2023]

What More Than a Century of Data Shows

Since 1950, the 12-month change in consumer prices has turned negative only three times. In 1954–55 it happened just after a recession (low of −0.7%). In 2009 it happened during the Great Recession (low of −2.1%). In 2015 it was a brief dip to −0.2% caused by an oil-price collapse. Average prices for a full year have fallen only three times since 1940: in 1949, 1955, and 2009, each tied to a recession. The deep price declines of the 1920s and 1930s came with depressions.

There is a reason. Wages, rents, contracts, and business costs adjust upward over time and rarely reverse. Falling prices across the whole economy usually happen only when demand collapses: when people lose jobs, businesses close, and spending dries up. That is a recession, and no family wants that cure. Since the 2022 peak, the economy has avoided recession, and as Section 3 showed, overall prices have dipped in only 3 months, all of them tiny.

The price increases of 2021 and 2022 were not a temporary spike that will reverse. Without a recession, a higher price level is the new floor, and every later increase is added on top of it.
Finding from BLS CPI data, 1913–2026
Annual Price Change, 1914–2025
Red bars mark years when average prices fell. After World War II they almost disappear.
Chart
Change in Average Annual Consumer Prices, 1914–2025
CPI-U annual average, percent change from prior year
Every Period of Falling Prices Since 1914
Each run of months when the 12-month change was below zero, checked against NBER recession dates (during a recession or within 12 months after one).
Table
Deflation Episodes and Recessions, 1914–2026
CPI-U 12-month change below zero; recession dates from NBER
Period Months Lowest 12-Mo Change Recession-Linked? Context
Aug 1915–Sep 1915 2 -0.98% Yes After 1913–14 recession
Jan 1921–Feb 1923 26 -15.79% Yes Depression of 1920–21
Jul 1924–Nov 1924 5 -0.58% Yes 1923–24 recession
Jul 1926–Aug 1928 26 -3.35% Yes 1926–27 recession
Oct 1928–Jan 1929 4 -1.16% Yes Post-1927 recession
Mar 1929–May 1929 3 -1.17% No Months before 1929 crash
Feb 1930–Mar 1930 2 -0.59% Yes Great Depression
May 1930–Oct 1933 42 -10.74% Yes Great Depression
Apr 1936–May 1936 2 -0.72% No Mid-Depression
Mar 1938–Aug 1939 18 -4.11% Yes 1937–38 recession
Jan 1940–Jan 1940 1 -0.71% No Late Depression
Sep 1940–Sep 1940 1 -0.71% No Late Depression
May 1949–Jun 1950 14 -2.87% Yes 1948–49 recession
Sep 1954–Aug 1955 12 -0.74% Yes Just after 1953–54 recession
Mar 2009–Oct 2009 8 -2.10% Yes Great Recession
Jan 2015–May 2015 5 -0.20% No Oil-price collapse (no recession)
Sep 2015–Sep 2015 1 -0.04% No Oil-price collapse (no recession)
7

Trump’s Second Term and the Iran War Energy Shock

What has changed since January 2025, with and without energy

From January 2025 through September 2026, overall prices rose 6.1%, against 21.4% during the four Biden years. For the first year of the term, from February 2025 through February 2026, 12-month inflation averaged 2.62%. Gasoline was cheaper in February 2026 (about $3.06 a gallon) than in January 2025 (about $3.21). [BLS, 2026a] [BLS, 2026c]

Then came the war. The United States and Israel launched military operations against Iran on February 28, 2026, [CRS, 2026] and oil shipments through the Strait of Hormuz fell sharply. [EIA, 2026a] Gasoline prices jumped 21.2% in March alone, and the average gallon reached about $4.65 in May 2026. The United States and Iran signed an agreement on June 18, 2026, to end the conflict, but energy prices have stayed elevated. [EIA, 2026b] By September 2026, energy prices were up 20.4% from a year earlier and overall inflation was 3.7%. [BLS, 2026b]

Taking Energy Out of the Picture

BLS publishes an index of all items less energy, which removes gasoline and household energy. On that measure, prices rose 20.6% from January 2021 to January 2025 and 4.7% from January 2025 to September 2026. In September 2026 that measure was up 2.6% over the year. Most of the recent jump in headline inflation is energy, and energy is tied to the Iran war. Prices outside energy are still rising faster than the Fed’s 2% goal, and Federal Reserve economists estimate the 2025 tariffs added about 0.8% to core consumer prices through February 2026. That increase has been far smaller than the 2021–2024 run-up. [BLS, 2026a] [Minton et al., 2026]

Headline Inflation vs. Inflation Excluding Energy
The gap that opens after February 2026 is the energy shock.
Chart
12-Month Inflation: All Items, All Items Less Energy, and Core, January 2024 – September 2026
CPI-U 12-month percent change, not seasonally adjusted
The National Average Price of Regular Gasoline, 2008–2026
Dollars per gallon. The 2022 record, the 2025 decline, and the 2026 war spike are all visible.
Chart
Average Price of Regular Gasoline, December 2007 – September 2026
BLS average price data, U.S. city average, dollars per gallon
8

What If the Biden-Era Increase Had Not Happened?

Three scenarios for what prices would cost today

To measure the size of what happened from 2021 through 2024, we asked a simple question: what would prices be today if those four years had gone differently? The method is straightforward. We start from the actual price level in January 2021. We replace the actual change from January 2021 to January 2025 with an assumed rate. Then we apply the actual price change that has happened since January 2025, including the Iran war energy shock, so the Trump II period is left exactly as it happened. [BLS, 2026a]

  1. Prices frozen. No price change at all for four years. This is a mathematical outer limit, not a realistic outcome.
  2. Trump I pace. Prices keep rising at Trump’s first-term average of 1.88% a year.
  3. Fed target. Prices rise at the Federal Reserve’s 2% goal.

The basket that actually costs $140.39 today (from $100 at 2016 prices) would cost $115.60 under the frozen-prices scenario, $124.56 at the Trump I pace, and $125.13 at the Fed’s target. Even in the two realistic scenarios, prices today would be about 11% lower than they are. Translated to the pump, regular gasoline at about $4.48 today would be about $3.21 at the Trump I pace. Ground beef at $6.79 a pound would be about $5.42.

How to Read These Scenarios

This is a “what if,” not a measurement of blame. Replacing those four years also removes the pandemic reopening, global supply shocks, and Russia’s invasion of Ukraine, which no president controlled. It shows how much of today’s price level was set during those four years: roughly 74% of the total price increase since January 2021.

Actual Prices vs. Three Scenarios
All four lines are identical through January 2021 and follow the same actual changes after January 2025. The gap is entirely the four Biden-term years.
Chart
Cost of a $100 (2016) Basket: Actual vs. Scenarios, 2016 – September 2026
CPI-U all items, not seasonally adjusted, scaled to the 2016 average = $100
What the Basket Would Cost in September 2026
Actual cost compared with each scenario.
Chart
September 2026 Cost of a $100 (2016) Basket by Scenario
Dollars; percentages show the difference from actual
What Everyday Items Would Cost
The same method applied to individual prices. “Own Trump I trend” uses each item’s own annual change from January 2017 to January 2021.
Chart
September 2026 Prices: Actual vs. Scenarios
BLS average retail prices, dollars per unit
Table
Everyday Items Under Each Scenario, September 2026
Same values as the chart
Item Actual Frozen Own Trump I Trend Fed 2% Trump I Trend Rate
Regular gasoline, per gallon $4.48 $3.25 $3.21 $3.51 -0.3%
White bread, per pound $1.83 $1.47 $1.68 $1.59 +3.4%
Ground beef, per pound $6.79 $4.86 $5.42 $5.26 +2.8%
Whole milk, per gallon $4.11 $3.54 $3.70 $3.83 +1.1%
Scenario Results
CPI index values (1982–84 = 100) and basket costs.
Table
What-If Results, January 2025 and September 2026
Assumed annual rate replaces the actual January 2021 – January 2025 change
Scenario Assumed Rate CPI Jan 2025 CPI Sep 2026 $100 Basket, Sep 2026 vs. Actual
Actual (BLS) — 317.67 336.94 $140.39 —
Zero growth Feb 2021–Jan 2025 0.00% 261.58 277.45 $115.60 -17.7%
Trump I average (1.88%/yr) 1.88% 281.85 298.94 $124.56 -11.3%
Fed 2% target 2.00% 283.14 300.32 $125.13 -10.9%
9

The Bottom Line

Who set today’s prices, and what a fair comparison looks like

The graphic is accurate: inflation averaged about 1.9% under Trump’s first term, 5.0% under Biden, and about 2.9% so far in Trump’s second term. The fuller record says even more:

  • Most of the price increase happened during the Biden term. Prices rose 21.4% from January 2021 to January 2025, about 74% of the total increase since Biden took office. Measured from the start of Trump’s first term, those four years account for 59.6% of the entire increase through September 2026. Fourteen of the 26 months since 2008 with price jumps above half a percent fell in his term.
  • Those prices stayed. Outside of a recession, prices almost never fall. The higher price level set in 2021–2022 is the floor that every family still pays today.
  • The policies passed in those years did not bring prices down. Federal Reserve research links the 2021 stimulus to part of the surge. The Inflation Reduction Act came after the peak and, by CBO’s own estimate, had a negligible effect on inflation.
  • Trump’s second term added a much smaller increase. Prices rose 6.1% through September 2026, and most of the 2026 rise traces to the energy shock from the Iran war.

How Much of the Increase Since 2017 Came During the Biden Term?

A broader way to ask the question: of all the price growth since Trump first took office in January 2017, how much happened during the Biden term? Prices rose 38.75% from January 2017 to September 2026. Of that increase, 59.6% occurred between January 2021 and January 2025, about three times the share of either Trump term (19.9% for Trump I and 20.5% so far for Trump II). [BLS, 2026a]

In dollars: a basket that cost $100 in January 2017 costs $138.75 today. Of that $38.75 increase, $23.10 was added during the Biden term, compared with $7.72 under Trump I and $7.93 so far under Trump II.

The first two years were the steepest. Democrats controlled both the House and the Senate from January 2021 to January 2023, the Congress that passed the American Rescue Plan. Prices rose 14.4% in those two years alone. That is about 40% of the entire increase since 2017, and two-thirds of the Biden-term increase.

About 60% of the Price Rise Since January 2017 Came in the Biden Term
Each bar is that period’s share of the total CPI-U increase from January 2017 to September 2026. The Biden bar is split by control of Congress.
Chart
Share of the Total Price Rise Since January 2017, by Period
CPI-U all items, not seasonally adjusted; percent of the index-point increase, Jan 2017 to Sep 2026
The Numbers Behind the Shares
Starting and ending index values, the price change within each period, its share of the total rise, and the dollars it added to a basket that cost $100 in January 2017.
Table
Price Rise by Period, January 2017 – September 2026
CPI-U all items, not seasonally adjusted (1982–84 = 100)
Period Dates Start CPI End CPI Change in Period Index Points Share of Total Rise Added per $100 (Jan 2017)
Trump I Jan 2017–Jan 2021 242.839 261.582 +7.72% 18.743 19.9% $7.72
Biden Jan 2021–Jan 2025 261.582 317.671 +21.44% 56.089 59.6% $23.10
   Democratic House and Senate (117th Congress) Jan 2021–Jan 2023 261.582 299.170 +14.37% 37.588 39.9% $15.48
   Divided Congress (118th Congress) Jan 2023–Jan 2025 299.170 317.671 +6.18% 18.501 19.7% $7.62
Trump II (to date) Jan 2025–Sep 2026 317.671 336.940 +6.07% 19.269 20.5% $7.93
Total Jan 2017–Sep 2026 242.839 336.940 +38.75% 94.101 100% $38.75
Reading These Shares Fairly

These shares measure when prices rose, not who caused each increase. As Section 5 showed, supply shocks, the war in Ukraine, and 2020 relief spending signed by President Trump also fed the surge. But for anyone weighing responsibility for today’s prices, the timing is clear: most of the increase since 2017 came during the Biden term, the largest part of it while Democrats controlled Congress, and the laws passed in those years did not bring prices back down.

A Fair Comparison

It is fair to ask any president what he is doing about prices. But blaming today’s price level on the current administration while leaving out the four years in which most of it was set is not a fair reading of the data. The numbers do not let anyone pin an exact share of the surge on one person or one law; supply shocks and a war in Europe played large roles. They do show that the steepest increases came during the Biden term, that the laws passed in that period did not lower prices, and that families are still living with the result.

Every number in this article can be checked. The data tables below hold the monthly figures, and each chart can be downloaded. The original BLS series are listed in the references.

Inspect the Data

The underlying data behind every chart, one tab per dataset. Each table can be downloaded as a CSV.

Monthly CPI-U, January 2016 – September 2026
Index level, 12-month inflation for headline, core, and energy, and the cost of a $100 (2016) basket. Used in Sections 1, 2, 5, 7, and 8.
Table
Monthly CPI-U and Inflation Rates
Not seasonally adjusted; 1982–84 = 100
Month CPI-U Headline 12-Mo % Core 12-Mo % Energy 12-Mo % $100 (2016) Basket Term
2016-01 236.916 1.37 2.21 -6.46 98.71 Pre-term 2015-16
2016-02 237.111 1.02 2.33 -12.48 98.79 Pre-term 2015-16
2016-03 238.132 0.85 2.19 -12.56 99.22 Pre-term 2015-16
2016-04 239.261 1.13 2.15 -8.87 99.69 Pre-term 2015-16
2016-05 240.229 1.02 2.24 -10.10 100.09 Pre-term 2015-16
2016-06 241.018 1.00 2.24 -9.43 100.42 Pre-term 2015-16
2016-07 240.628 0.83 2.19 -10.88 100.26 Pre-term 2015-16
2016-08 240.849 1.06 2.32 -9.25 100.35 Pre-term 2015-16
2016-09 241.428 1.46 2.21 -2.87 100.59 Pre-term 2015-16
2016-10 241.729 1.64 2.14 0.15 100.72 Pre-term 2015-16
2016-11 241.353 1.69 2.11 1.13 100.56 Pre-term 2015-16
2016-12 241.432 2.07 2.20 5.41 100.59 Pre-term 2015-16
2017-01 242.839 2.50 2.27 10.79 101.18 Pre-term 2015-16
2017-02 243.603 2.74 2.22 15.19 101.50 Trump I
2017-03 243.801 2.38 2.00 10.94 101.58 Trump I
2017-04 244.524 2.20 1.88 9.27 101.88 Trump I
2017-05 244.733 1.87 1.73 5.43 101.97 Trump I
2017-06 244.955 1.63 1.70 2.31 102.06 Trump I
2017-07 244.786 1.73 1.69 3.38 101.99 Trump I
2017-08 245.519 1.94 1.68 6.39 102.30 Trump I
2017-09 246.819 2.23 1.69 10.14 102.84 Trump I
2017-10 246.663 2.04 1.77 6.42 102.77 Trump I
2017-11 246.669 2.20 1.71 9.39 102.78 Trump I
2017-12 246.524 2.11 1.78 6.88 102.72 Trump I
2018-01 247.867 2.07 1.82 5.54 103.27 Trump I
2018-02 248.991 2.21 1.85 7.73 103.74 Trump I
2018-03 249.554 2.36 2.12 7.03 103.98 Trump I
2018-04 250.546 2.46 2.14 7.87 104.39 Trump I
2018-05 251.588 2.80 2.24 11.66 104.83 Trump I
2018-06 251.989 2.87 2.26 11.97 104.99 Trump I
2018-07 252.006 2.95 2.35 12.12 105.00 Trump I
2018-08 252.146 2.70 2.20 10.22 105.06 Trump I
2018-09 252.439 2.28 2.17 4.85 105.18 Trump I
2018-10 252.885 2.52 2.14 8.91 105.37 Trump I
2018-11 252.038 2.18 2.21 3.12 105.01 Trump I
2018-12 251.233 1.91 2.18 -0.34 104.68 Trump I
2019-01 251.712 1.55 2.15 -4.79 104.88 Trump I
2019-02 252.776 1.52 2.08 -5.05 105.32 Trump I
2019-03 254.202 1.86 2.04 -0.39 105.91 Trump I
2019-04 255.548 2.00 2.06 1.68 106.48 Trump I
2019-05 256.092 1.79 1.99 -0.46 106.70 Trump I
2019-06 256.143 1.65 2.13 -3.39 106.72 Trump I
2019-07 256.571 1.81 2.21 -2.03 106.90 Trump I
2019-08 256.558 1.75 2.39 -4.39 106.90 Trump I
2019-09 256.759 1.71 2.36 -4.75 106.98 Trump I
2019-10 257.346 1.76 2.31 -4.17 107.22 Trump I
2019-11 257.208 2.05 2.32 -0.59 107.17 Trump I
2019-12 256.974 2.29 2.26 3.44 107.07 Trump I
2020-01 257.971 2.49 2.26 6.22 107.48 Trump I
2020-02 258.678 2.33 2.36 2.77 107.78 Trump I
2020-03 258.115 1.54 2.09 -5.74 107.54 Trump I
2020-04 256.389 0.33 1.43 -17.72 106.83 Trump I
2020-05 256.394 0.12 1.22 -18.91 106.83 Trump I
2020-06 257.797 0.65 1.19 -12.65 107.41 Trump I
2020-07 259.101 0.99 1.57 -11.16 107.96 Trump I
2020-08 259.918 1.31 1.74 -9.04 108.30 Trump I
2020-09 260.280 1.37 1.71 -7.69 108.45 Trump I
2020-10 260.388 1.18 1.61 -9.19 108.49 Trump I
2020-11 260.229 1.17 1.65 -9.43 108.43 Trump I
2020-12 260.474 1.36 1.62 -6.96 108.53 Trump I
2021-01 261.582 1.40 1.41 -3.65 108.99 Trump I
2021-02 263.014 1.68 1.28 2.36 109.59 Biden
2021-03 264.877 2.62 1.65 13.17 110.36 Biden
2021-04 267.054 4.16 2.96 25.14 111.27 Biden
2021-05 269.195 4.99 3.80 28.55 112.16 Biden
2021-06 271.696 5.39 4.47 24.48 113.20 Biden
2021-07 273.003 5.37 4.27 23.85 113.75 Biden
2021-08 273.567 5.25 4.00 24.97 113.98 Biden
2021-09 274.310 5.39 4.03 24.83 114.29 Biden
2021-10 276.589 6.22 4.56 29.97 115.24 Biden
2021-11 277.948 6.81 4.93 33.29 115.81 Biden
2021-12 278.802 7.04 5.45 29.30 116.16 Biden
2022-01 281.148 7.48 6.02 26.98 117.14 Biden
2022-02 283.716 7.87 6.41 25.55 118.21 Biden
2022-03 287.504 8.54 6.47 32.05 119.79 Biden
2022-04 289.109 8.26 6.16 30.27 120.46 Biden
2022-05 292.296 8.58 6.02 34.60 121.79 Biden
2022-06 296.311 9.06 5.92 41.62 123.46 Biden
2022-07 296.276 8.52 5.91 32.93 123.44 Biden
2022-08 296.171 8.26 6.32 23.81 123.40 Biden
2022-09 296.808 8.20 6.63 19.79 123.67 Biden
2022-10 298.012 7.75 6.28 17.63 124.17 Biden
2022-11 297.711 7.11 5.96 13.07 124.04 Biden
2022-12 296.797 6.45 5.71 7.31 123.66 Biden
2023-01 299.170 6.41 5.58 8.70 124.65 Biden
2023-02 300.840 6.04 5.54 5.19 125.35 Biden
2023-03 301.836 4.98 5.59 -6.42 125.76 Biden
2023-04 303.363 4.93 5.52 -5.06 126.40 Biden
2023-05 304.127 4.05 5.33 -11.66 126.72 Biden
2023-06 305.109 2.97 4.83 -16.74 127.12 Biden
2023-07 305.691 3.18 4.65 -12.47 127.37 Biden
2023-08 307.026 3.67 4.35 -3.62 127.92 Biden
2023-09 307.789 3.70 4.15 -0.45 128.24 Biden
2023-10 307.671 3.24 4.03 -4.53 128.19 Biden
2023-11 307.051 3.14 4.01 -5.44 127.93 Biden
2023-12 306.746 3.35 3.93 -2.02 127.81 Biden
2024-01 308.417 3.09 3.86 -4.56 128.50 Biden
2024-02 310.326 3.15 3.75 -1.90 129.30 Biden
2024-03 312.332 3.48 3.80 2.12 130.13 Biden
2024-04 313.548 3.36 3.61 2.61 130.64 Biden
2024-05 314.069 3.27 3.42 3.69 130.86 Biden
2024-06 314.175 2.97 3.27 0.99 130.90 Biden
2024-07 314.540 2.89 3.17 1.07 131.05 Biden
2024-08 314.796 2.53 3.20 -3.98 131.16 Biden
2024-09 315.301 2.44 3.31 -6.85 131.37 Biden
2024-10 315.664 2.60 3.33 -4.86 131.52 Biden
2024-11 315.493 2.75 3.32 -3.18 131.45 Biden
2024-12 315.605 2.89 3.24 -0.52 131.50 Biden
2025-01 317.671 3.00 3.26 0.97 132.36 Biden
2025-02 319.082 2.82 3.12 -0.17 132.95 Trump II
2025-03 319.799 2.39 2.79 -3.25 133.25 Trump II
2025-04 320.795 2.31 2.78 -3.74 133.66 Trump II
2025-05 321.465 2.35 2.79 -3.46 133.94 Trump II
2025-06 322.561 2.67 2.93 -0.83 134.40 Trump II
2025-07 323.048 2.70 3.06 -1.55 134.60 Trump II
2025-08 323.976 2.92 3.11 0.22 134.99 Trump II
2025-09 324.800 3.01 3.02 2.85 135.33 Trump II
2025-10 Trump II
2025-11 324.122 2.74 2.63 4.24 135.05 Trump II
2025-12 324.054 2.68 2.64 2.30 135.02 Trump II
2026-01 325.252 2.39 2.50 -0.14 135.52 Trump II
2026-02 326.785 2.41 2.46 0.48 136.16 Trump II
2026-03 330.213 3.26 2.60 12.53 137.58 Trump II
2026-04 333.020 3.81 2.75 17.87 138.75 Trump II
2026-05 335.123 4.25 2.85 23.54 139.63 Trump II
2026-06 333.952 3.53 2.59 15.70 139.14 Trump II
2026-07 333.918 3.36 2.48 14.73 139.13 Trump II
2026-08 334.980 3.40 2.45 16.28 139.57 Trump II
2026-09 336.940 3.74 2.56 20.45 140.39 Trump II

The 12-month inflation rate equals the index divided by its value 12 months earlier, minus one. Term averages are the simple mean of the monthly 12-month rates from February of the inauguration year through January four years later. Trump II runs February 2025 through the latest month. The $100 basket equals the index divided by its 2016 average (240.007), times 100. This is the same method the graphic appears to use, and it reproduces the graphic’s values exactly when rounded.

Seasonally Adjusted Consumer Prices, December 2007 – September 2026
Index levels and month-over-month changes for all items, food at home, and gasoline. Used in Sections 3 and 4.
Table
Consumer Price Indexes and Monthly Changes
Seasonally adjusted CPI-U; 1982–84 = 100; monthly change in percent
Month All Items Food at Home Gasoline All Items MoM % Food MoM % Gas MoM %
2007-12 211.445 205.503 271.805
2008-01 212.174 207.100 273.485 0.34 0.78 0.62
2008-02 212.687 207.854 277.120 0.24 0.36 1.33
2008-03 213.448 208.093 279.234 0.36 0.11 0.76
2008-04 213.942 210.897 276.563 0.23 1.35 -0.96
2008-05 215.208 211.800 289.883 0.59 0.43 4.82
2008-06 217.463 213.331 321.643 1.05 0.72 10.96
2008-07 219.016 216.028 334.055 0.71 1.26 3.86
2008-08 218.690 217.449 319.114 -0.15 0.66 -4.47
2008-09 218.877 218.757 321.466 0.09 0.60 0.74
2008-10 216.995 219.532 278.393 -0.86 0.35 -13.40
2008-11 213.153 219.662 191.822 -1.77 0.06 -31.10
2008-12 211.398 219.163 154.377 -0.82 -0.23 -19.52
2009-01 211.933 218.953 160.815 0.25 -0.10 4.17
2009-02 212.705 217.930 174.067 0.36 -0.47 8.24
2009-03 212.495 216.949 166.814 -0.10 -0.45 -4.17
2009-04 212.709 215.807 168.312 0.10 -0.53 0.90
2009-05 213.022 215.064 177.057 0.15 -0.34 5.20
2009-06 214.790 214.953 213.086 0.83 -0.05 20.35
2009-07 214.726 214.047 211.649 -0.03 -0.42 -0.67
2009-08 215.445 213.769 223.781 0.33 -0.13 5.73
2009-09 215.861 213.299 226.214 0.19 -0.22 1.09
2009-10 216.509 213.472 228.651 0.30 0.08 1.08
2009-11 217.234 213.383 238.246 0.33 -0.04 4.20
2009-12 217.347 213.839 237.235 0.05 0.21 -0.42
2010-01 217.488 214.738 242.036 0.06 0.42 2.02
2010-02 217.281 214.728 235.748 -0.10 -0.00 -2.60
2010-03 217.353 215.550 233.103 0.03 0.38 -1.12
2010-04 217.403 215.721 232.594 0.02 0.08 -0.22
2010-05 217.290 215.717 227.765 -0.05 -0.00 -2.08
2010-06 217.199 215.476 222.745 -0.04 -0.11 -2.20
2010-07 217.605 215.451 229.026 0.19 -0.01 2.82
2010-08 217.923 215.361 232.674 0.15 -0.04 1.59
2010-09 218.275 216.166 235.661 0.16 0.37 1.28
2010-10 219.035 216.534 249.885 0.35 0.17 6.04
2010-11 219.590 217.105 256.596 0.25 0.26 2.69
2010-12 220.472 217.419 271.509 0.40 0.14 5.81
2011-01 221.187 219.251 275.816 0.32 0.84 1.59
2011-02 221.898 220.732 280.015 0.32 0.68 1.52
2011-03 223.046 223.193 294.915 0.52 1.11 5.32
2011-04 224.093 224.098 310.115 0.47 0.41 5.15
2011-05 224.806 225.295 314.859 0.32 0.53 1.53
2011-06 224.806 225.857 304.321 0.00 0.25 -3.35
2011-07 225.395 227.178 304.901 0.26 0.58 0.19
2011-08 226.106 228.492 306.276 0.32 0.58 0.45
2011-09 226.597 229.927 309.168 0.22 0.63 0.94
2011-10 226.750 229.992 305.963 0.07 0.03 -1.04
2011-11 227.169 229.947 308.587 0.18 -0.02 0.86
2011-12 227.223 230.424 300.662 0.02 0.21 -2.57
2012-01 227.842 230.948 306.170 0.27 0.23 1.83
2012-02 228.329 230.612 316.625 0.21 -0.15 3.41
2012-03 228.807 231.051 319.198 0.21 0.19 0.81
2012-04 229.187 231.397 319.414 0.17 0.15 0.07
2012-05 228.713 231.320 303.692 -0.21 -0.03 -4.92
2012-06 228.524 231.713 291.490 -0.08 0.17 -4.02
2012-07 228.590 231.658 287.505 0.03 -0.02 -1.37
2012-08 229.918 231.853 310.365 0.58 0.08 7.95
2012-09 231.015 231.789 326.789 0.48 -0.03 5.29
2012-10 231.638 232.398 332.699 0.27 0.26 1.81
2012-11 231.249 232.883 315.264 -0.17 0.21 -5.24
2012-12 231.221 233.374 306.338 -0.01 0.21 -2.83
2013-01 231.679 233.696 306.734 0.20 0.14 0.13
2013-02 232.937 233.526 329.253 0.54 -0.07 7.34
2013-03 232.282 233.580 310.442 -0.28 0.02 -5.71
2013-04 231.797 233.776 295.206 -0.21 0.08 -4.91
2013-05 231.893 233.184 293.131 0.04 -0.25 -0.70
2013-06 232.445 233.809 298.112 0.24 0.27 1.70
2013-07 232.900 233.893 298.754 0.20 0.04 0.22
2013-08 233.456 234.073 303.409 0.24 0.08 1.56
2013-09 233.544 234.040 297.390 0.04 -0.01 -1.98
2013-10 233.669 234.219 295.640 0.05 0.08 -0.59
2013-11 234.100 234.144 297.183 0.18 -0.03 0.52
2013-12 234.719 234.318 303.304 0.26 0.07 2.06
2014-01 235.288 234.722 308.400 0.24 0.17 1.68
2014-02 235.547 235.781 305.007 0.11 0.45 -1.10
2014-03 236.028 237.055 300.141 0.20 0.54 -1.60
2014-04 236.468 237.942 305.367 0.19 0.37 1.74
2014-05 236.918 239.611 301.296 0.19 0.70 -1.33
2014-06 237.231 239.682 302.293 0.13 0.03 0.33
2014-07 237.498 240.154 299.785 0.11 0.20 -0.83
2014-08 237.460 240.692 294.803 -0.02 0.22 -1.66
2014-09 237.477 241.328 287.003 0.01 0.26 -2.65
2014-10 237.430 241.620 278.463 -0.02 0.12 -2.98
2014-11 236.983 241.912 262.282 -0.19 0.12 -5.81
2014-12 236.252 242.893 238.491 -0.31 0.41 -9.07
2015-01 234.747 242.553 199.553 -0.64 -0.14 -16.33
2015-02 235.342 242.598 206.901 0.25 0.02 3.68
2015-03 235.976 241.633 214.684 0.27 -0.40 3.76
2015-04 236.222 241.106 211.577 0.10 -0.22 -1.45
2015-05 237.001 241.107 225.281 0.33 0.00 6.48
2015-06 237.657 241.922 230.871 0.28 0.34 2.48
2015-07 238.034 242.250 231.775 0.16 0.14 0.39
2015-08 238.033 242.864 225.725 -0.00 0.25 -2.61
2015-09 237.498 243.198 201.935 -0.22 0.14 -10.54
2015-10 237.733 243.284 199.315 0.10 0.04 -1.30
2015-11 238.017 242.606 198.984 0.12 -0.28 -0.17
2015-12 237.761 241.880 190.765 -0.11 -0.30 -4.13
2016-01 237.652 241.558 181.445 -0.05 -0.13 -4.89
2016-02 237.336 241.741 162.727 -0.13 0.08 -10.32
2016-03 238.080 240.414 175.164 0.31 -0.55 7.64
2016-04 238.992 240.341 184.762 0.38 -0.03 5.48
2016-05 239.557 239.348 187.627 0.24 -0.41 1.55
2016-06 240.222 238.763 196.440 0.28 -0.24 4.70
2016-07 240.101 238.380 185.486 -0.05 -0.16 -5.58
2016-08 240.545 238.133 183.715 0.18 -0.10 -0.95
2016-09 241.176 237.880 189.766 0.26 -0.11 3.29
2016-10 241.741 237.714 197.788 0.23 -0.07 4.23
2016-11 242.026 237.438 199.220 0.12 -0.12 0.72
2016-12 242.637 237.147 206.244 0.25 -0.12 3.53
2017-01 243.618 237.072 217.892 0.40 -0.03 5.65
2017-02 244.006 237.824 213.626 0.16 0.32 -1.96
2017-03 243.892 238.387 210.690 -0.05 0.24 -1.37
2017-04 244.193 238.568 209.074 0.12 0.08 -0.77
2017-05 244.004 238.893 197.848 -0.08 0.14 -5.37
2017-06 244.163 238.494 195.797 0.07 -0.17 -1.04
2017-07 244.243 238.904 191.889 0.03 0.17 -2.00
2017-08 245.183 238.804 203.585 0.38 -0.04 6.10
2017-09 246.435 238.852 228.252 0.51 0.02 12.12
2017-10 246.626 239.020 218.990 0.08 0.07 -4.06
2017-11 247.284 238.940 228.908 0.27 -0.03 4.53
2017-12 247.805 239.371 228.888 0.21 0.18 -0.01
2018-01 248.859 239.854 235.325 0.43 0.20 2.81
2018-02 249.529 239.187 239.767 0.27 -0.28 1.89
2018-03 249.577 239.149 231.325 0.02 -0.02 -3.52
2018-04 250.227 239.541 238.803 0.26 0.16 3.23
2018-05 250.792 238.884 242.344 0.23 -0.27 1.48
2018-06 251.018 239.048 243.105 0.09 0.07 0.31
2018-07 251.214 239.565 241.377 0.08 0.22 -0.71
2018-08 251.663 239.795 246.229 0.18 0.10 2.01
2018-09 252.182 239.967 250.369 0.21 0.07 1.68
2018-10 252.772 239.558 253.471 0.23 -0.17 1.24
2018-11 252.594 240.227 238.309 -0.07 0.28 -5.98
2018-12 252.767 241.137 225.063 0.07 0.38 -5.56
2019-01 252.561 241.581 208.730 -0.08 0.18 -7.26
2019-02 253.319 242.111 217.237 0.30 0.22 4.08
2019-03 254.277 242.482 230.013 0.38 0.15 5.88
2019-04 255.233 241.219 245.651 0.38 -0.52 6.80
2019-05 255.296 241.642 242.557 0.02 0.18 -1.26
2019-06 255.213 241.214 231.691 -0.03 -0.18 -4.48
2019-07 255.802 240.988 235.098 0.23 -0.09 1.47
2019-08 256.036 240.943 229.734 0.09 -0.02 -2.28
2019-09 256.430 241.409 228.230 0.15 0.19 -0.65
2019-10 257.155 241.999 232.348 0.28 0.24 1.80
2019-11 257.879 242.726 236.924 0.28 0.30 1.97
2019-12 258.630 242.887 244.197 0.29 0.07 3.07
2020-01 259.127 243.511 242.397 0.19 0.26 -0.74
2020-02 259.250 244.200 230.646 0.05 0.28 -4.85
2020-03 258.076 245.017 204.901 -0.45 0.33 -11.16
2020-04 256.032 251.063 164.836 -0.79 2.47 -19.55
2020-05 255.802 253.230 160.261 -0.09 0.86 -2.78
2020-06 257.042 254.674 178.169 0.48 0.57 11.17
2020-07 258.352 252.003 185.072 0.51 -1.05 3.87
2020-08 259.316 252.148 188.325 0.37 0.06 1.76
2020-09 259.997 251.166 193.069 0.26 -0.39 2.52
2020-10 260.319 251.641 191.525 0.12 0.19 -0.80
2020-11 260.911 251.365 191.823 0.23 -0.11 0.16
2020-12 262.045 252.536 208.753 0.43 0.47 8.83
2021-01 262.687 252.541 223.567 0.24 0.00 7.10
2021-02 263.579 252.822 234.713 0.34 0.11 4.99
2021-03 264.961 252.933 254.403 0.52 0.04 8.39
2021-04 266.614 254.125 246.052 0.62 0.47 -3.28
2021-05 268.383 255.043 249.382 0.66 0.36 1.35
2021-06 270.654 257.058 256.305 0.85 0.79 2.78
2021-07 271.903 258.491 260.515 0.46 0.56 1.64
2021-08 272.676 259.613 266.871 0.28 0.43 2.44
2021-09 273.910 262.459 273.260 0.45 1.10 2.39
2021-10 276.550 265.084 286.527 0.96 1.00 4.86
2021-11 278.919 267.473 305.127 0.86 0.90 6.49
2021-12 280.845 268.985 313.591 0.69 0.57 2.77
2022-01 282.543 271.176 312.894 0.60 0.81 -0.22
2022-02 284.500 274.728 323.330 0.69 1.31 3.34
2022-03 287.674 278.333 375.953 1.12 1.31 16.28
2022-04 288.561 281.593 352.960 0.31 1.17 -6.12
2022-05 291.298 285.522 371.340 0.95 1.40 5.21
2022-06 294.957 288.568 409.671 1.26 1.07 10.32
2022-07 294.913 292.455 375.422 -0.01 1.35 -8.36
2022-08 295.097 294.884 335.333 0.06 0.83 -10.68
2022-09 296.349 296.403 322.853 0.42 0.52 -3.72
2022-10 298.007 297.966 337.263 0.56 0.53 4.46
2022-11 298.786 299.449 336.273 0.26 0.50 -0.29
2022-12 298.832 300.576 309.091 0.02 0.38 -8.08
2023-01 300.420 301.676 317.380 0.53 0.37 2.68
2023-02 301.450 302.444 316.327 0.34 0.25 -0.33
2023-03 301.821 301.467 309.776 0.12 -0.32 -2.07
2023-04 302.845 301.811 309.412 0.34 0.11 -0.12
2023-05 303.334 302.184 298.832 0.16 0.12 -3.42
2023-06 304.014 302.057 301.426 0.22 -0.04 0.87
2023-07 304.609 302.984 300.625 0.20 0.31 -0.27
2023-08 306.082 303.631 323.701 0.48 0.21 7.68
2023-09 307.276 303.449 332.732 0.39 -0.06 2.79
2023-10 307.696 304.366 320.296 0.14 0.30 -3.74
2023-11 308.148 304.332 306.714 0.15 -0.01 -4.24
2023-12 308.741 304.505 303.319 0.19 0.06 -1.11
2024-01 309.698 305.187 297.154 0.31 0.22 -2.03
2024-02 310.967 305.432 303.183 0.41 0.08 2.03
2024-03 312.345 305.010 313.054 0.44 -0.14 3.26
2024-04 313.023 305.354 312.728 0.22 0.11 -0.10
2024-05 313.175 305.414 305.909 0.05 0.02 -2.18
2024-06 313.044 305.582 294.143 -0.04 0.06 -3.85
2024-07 313.569 306.285 294.025 0.17 0.23 -0.04
2024-08 314.062 306.399 290.263 0.16 0.04 -1.28
2024-09 314.732 307.258 282.057 0.21 0.28 -2.83
2024-10 315.631 307.867 281.588 0.29 0.20 -0.17
2024-11 316.528 309.093 281.939 0.28 0.40 0.12
2024-12 317.604 309.767 293.155 0.34 0.22 3.98
2025-01 318.961 310.817 296.780 0.43 0.34 1.24
2025-02 319.679 310.955 293.232 0.23 0.04 -1.20
2025-03 319.785 312.154 282.129 0.03 0.39 -3.79
2025-04 320.302 311.440 275.454 0.16 -0.23 -2.37
2025-05 320.620 312.296 269.584 0.10 0.27 -2.13
2025-06 321.435 312.982 269.865 0.25 0.22 0.10
2025-07 322.169 313.035 266.542 0.23 0.02 -1.23
2025-08 323.291 314.647 270.922 0.35 0.51 1.64
2025-09 324.245 315.540 280.658 0.30 0.28 3.59
2025-10 276.991 -1.31
2025-11 325.063 315.000 284.560 2.73
2025-12 326.031 316.982 283.599 0.30 0.63 -0.34
2026-01 326.588 317.589 274.547 0.17 0.19 -3.19
2026-02 327.460 318.985 276.754 0.27 0.44 0.80
2026-03 330.293 318.462 335.500 0.87 -0.16 21.23
2026-04 332.407 320.633 353.740 0.64 0.68 5.44
2026-05 333.979 320.836 378.660 0.47 0.06 7.04
2026-06 332.568 321.446 341.980 -0.42 0.19 -9.69
2026-07 332.813 321.216 332.215 0.07 -0.07 -2.86
2026-08 334.131 321.335 345.169 0.40 0.04 3.90
2026-09 336.298 321.111 376.558 0.65 -0.07 9.09

Month-to-month comparisons use seasonally adjusted series, which remove normal calendar patterns such as summer driving season. Rebased charts divide each value by its December 2007, December 2019, or December 2023 level and multiply by 100. Term totals in Section 3 run from the December before each term to its final December. That is why the Biden term shows +21.2% there and +21.4% on the January-to-January measure used in Sections 2 and 8.

Annual Average CPI-U, 1913–2026
Used in Section 6 to identify years when average prices fell.
Table
Annual Average Consumer Prices Since 1913
Not seasonally adjusted; 1982–84 = 100
Year Annual Average CPI-U Change from Prior Year
1913 9.883
1914 10.017 1.35%
1915 10.108 0.92%
1916 10.883 7.67%
1917 12.825 17.84%
1918 15.042 17.28%
1919 17.333 15.24%
1920 20.042 15.63%
1921 17.850 -10.94%
1922 16.750 -6.16%
1923 17.050 1.79%
1924 17.125 0.44%
1925 17.542 2.43%
1926 17.700 0.90%
1927 17.358 -1.93%
1928 17.158 -1.15%
1929 17.158 0.00%
1930 16.700 -2.67%
1931 15.208 -8.93%
1932 13.642 -10.30%
1933 12.933 -5.19%
1934 13.383 3.48%
1935 13.725 2.55%
1936 13.867 1.03%
1937 14.383 3.73%
1938 14.092 -2.03%
1939 13.908 -1.30%
1940 14.008 0.72%
1941 14.725 5.12%
1942 16.333 10.92%
1943 17.308 5.97%
1944 17.592 1.64%
1945 17.992 2.27%
1946 19.517 8.48%
1947 22.325 14.39%
1948 24.042 7.69%
1949 23.808 -0.97%
1950 24.067 1.09%
1951 25.958 7.86%
1952 26.550 2.28%
1953 26.767 0.82%
1954 26.850 0.31%
1955 26.775 -0.28%
1956 27.183 1.53%
1957 28.092 3.34%
1958 28.858 2.73%
1959 29.150 1.01%
1960 29.575 1.46%
1961 29.892 1.07%
1962 30.250 1.20%
1963 30.625 1.24%
1964 31.017 1.28%
1965 31.508 1.59%
1966 32.458 3.02%
1967 33.358 2.77%
1968 34.783 4.27%
1969 36.683 5.46%
1970 38.825 5.84%
1971 40.492 4.29%
1972 41.817 3.27%
1973 44.400 6.18%
1974 49.308 11.05%
1975 53.817 9.14%
1976 56.908 5.74%
1977 60.608 6.50%
1978 65.233 7.63%
1979 72.575 11.25%
1980 82.408 13.55%
1981 90.925 10.33%
1982 96.500 6.13%
1983 99.600 3.21%
1984 103.883 4.30%
1985 107.567 3.55%
1986 109.608 1.90%
1987 113.625 3.66%
1988 118.258 4.08%
1989 123.967 4.83%
1990 130.658 5.40%
1991 136.192 4.23%
1992 140.317 3.03%
1993 144.458 2.95%
1994 148.225 2.61%
1995 152.383 2.81%
1996 156.850 2.93%
1997 160.517 2.34%
1998 163.008 1.55%
1999 166.575 2.19%
2000 172.200 3.38%
2001 177.067 2.83%
2002 179.875 1.59%
2003 183.958 2.27%
2004 188.883 2.68%
2005 195.292 3.39%
2006 201.592 3.23%
2007 207.342 2.85%
2008 215.303 3.84%
2009 214.537 -0.36%
2010 218.055 1.64%
2011 224.939 3.16%
2012 229.594 2.07%
2013 232.957 1.46%
2014 236.736 1.62%
2015 237.017 0.12%
2016 240.007 1.26%
2017 245.120 2.13%
2018 251.107 2.44%
2019 255.657 1.81%
2020 258.811 1.23%
2021 270.970 4.70%
2022 292.655 8.00%
2023 304.702 4.12%
2024 313.689 2.95%
2025 321.943 2.63%
2026* 332.243 3.20%

A deflation episode is any run of consecutive months with a negative 12-month CPI change. Each episode was compared with NBER recession peak-to-trough dates. An episode counts as recession-linked if any month falls inside a recession or within 12 months after its trough.

Data Source Registry
Every data element in this article and where it came from.
Table
Source Registry
Data element, publisher, series, and access date
Data Element Publisher Series / Document Accessed
Headline, core, energy, food, shelter CPI (NSA) BLS CUUR0000SA0, SA0L1E, SA0E, SAF1, SAH1, SA0LE 2026-10-15
Seasonally adjusted CPI BLS CUSR0000SA0, SAF11, SETB01, SA0LE 2026-10-15
CPI history 1913–2026 BLS CUUR0000SA0 (cu.data.1.AllItems) 2026-10-15
Retail prices BLS APU000074714, APU0000702111, APU0000703112, APU0000706111, APU0000708111, APU0000709112, APU0000711211 2026-10-15
September 2026 validation BLS CPI news release, Oct 14, 2026 2026-10-15
Recession dates NBER Business cycle expansions and contractions 2026-10-15
Supply-chain pressure Federal Reserve Bank of New York GSCPI data file 2026-10-15
Iran war dates and oil disruption CRS; EIA CRS Insight IN12662; EIA press releases 584 and 590 2026-10-15
Inflation research FRBSF; Brookings; CBO Economic Letters 2022-07, 2022-15; Bernanke & Blanchard (2023); CBO letter 58357 2026-10-15

All series were downloaded from BLS bulk files and cross-checked against the published May 2026 and September 2026 news releases. No value was estimated or filled in. The October 2025 gap is shown as blank everywhere.

References

Sources are organized by the sections of this article they principally inform. Citations follow APA 7th Edition format. Data were downloaded directly from the publishing agency; news and fact-check articles were used only as leads and are not cited as evidence.

Price Data — Sections 1 through 8

U.S. Bureau of Labor Statistics. (2026a). Consumer Price Index for All Urban Consumers (CPI-U), U.S. city average: bulk time-series files [Data set]. https://download.bls.gov/pub/time.series/cu/

Primary source for every CPI figure: all items (CUUR0000SA0, CUSR0000SA0), core (SA0L1E), all items less energy (SA0LE), energy (SA0E), food (SAF1), food at home (SAF11), shelter (SAH1), and gasoline (SETB01), monthly from 1913 through September 2026. Downloaded October 15, 2026. October 2025 was not published.

U.S. Bureau of Labor Statistics. (2026b, October 14). Consumer Price Index — September 2026 [News release]. https://www.bls.gov/news.release/cpi.nr0.htm

Confirms the September 2026 index level (336.940), the 3.7% 12-month increase, energy up 20.4%, gasoline up 34.2%, and core up 2.6%. Used to validate the bulk data.

U.S. Bureau of Labor Statistics. (2026c). Average Price Data, U.S. city average: bulk time-series files [Data set]. https://download.bls.gov/pub/time.series/ap/

Retail prices for regular gasoline and grocery staples (Sections 4, 7, and 8). Not seasonally adjusted.

Causes of the 2021–2022 Surge — Section 5

Jordà, Ò., Liu, C., Nechio, F., & Rivera-Reyes, F. (2022, March 28). Why is U.S. inflation higher than in other countries? (FRBSF Economic Letter 2022-07). Federal Reserve Bank of San Francisco. https://www.frbsf.org/research-and-insights/publications/economic-letter/2022/03/why-is-us-inflation-higher-than-in-other-countries/

Estimates U.S. pandemic income-support measures raised inflation about 3 percentage points by the end of 2021. Covers transfers enacted in 2020 and 2021.

Shapiro, A. H. (2022, June 21). How much do supply and demand drive inflation? (FRBSF Economic Letter 2022-15). Federal Reserve Bank of San Francisco. https://www.frbsf.org/research-and-insights/publications/economic-letter/2022/06/how-much-do-supply-and-demand-drive-inflation/

Attributes a little more than half of the 2022 inflation gap to supply factors and about one-third to demand factors.

Bernanke, B. S., & Blanchard, O. (2023, June 13). What caused the U.S. pandemic-era inflation? Brookings Institution. https://www.brookings.edu/articles/what-caused-the-u-s-pandemic-era-inflation/

Finds most of the rise came from price shocks (commodities, sector shortages). Fiscal policy contributed through demand for goods in short supply; labor-market tightness grew in importance later.

Congressional Budget Office. (2022, August 4). Economic analysis of budget reconciliation legislation [Letter to Sen. Lindsey Graham]. https://www.cbo.gov/system/files/2022-08/58357-Graham.pdf

States the Inflation Reduction Act would have a “negligible effect on inflation” in 2022 and between −0.1 and +0.1 percentage point in 2023.

Congress.gov. (2021). H.R. 1319 — American Rescue Plan Act of 2021, all actions. Library of Congress. https://www.congress.gov/bill/117th-congress/house-bill/1319/all-actions

Signed March 11, 2021 (Public Law 117-2). Senate passed 50–49 (March 6) and House agreed 220–211 (March 10). CBO estimated a $1.86 trillion deficit increase (https://www.cbo.gov/system/files/2021-03/Estimated_Budgetary_Effects_of_HR_1319_as_passed_0.pdf).

Federal Reserve Bank of New York. (2026). Global Supply Chain Pressure Index [Data set]. https://www.newyorkfed.org/research/policy/gscpi

Monthly index of global supply-chain stress used in the Supply Chains tab. October 2026 vintage.

Office of the Clerk, U.S. House of Representatives. (2021, March 10). Roll Call 72: On motion to concur in the Senate amendment, American Rescue Plan Act. https://clerk.house.gov/Votes/202172

Party breakdown of the final House vote: Democrats 220 yea and 1 nay; Republicans 0 yea and 210 nay.

Price History and Recessions — Section 6

National Bureau of Economic Research. (2023). US business cycle expansions and contractions. https://www.nber.org/research/data/us-business-cycle-expansions-and-contractions

Official recession peak and trough dates, 1913–2020, matched against every CPI deflation episode.

Energy Shock of 2026 — Section 7

U.S. Energy Information Administration. (2026a, March 10). Short-Term Energy Outlook press release. https://www.eia.gov/pressroom/releases/press584.php

Reports that crude oil prices rose as petroleum shipments through the Strait of Hormuz fell following the onset of military action in the Middle East.

U.S. Energy Information Administration. (2026b, July 7). EIA increases global oil production forecast after the U.S.–Iran agreement [Press release]. https://www.eia.gov/pressroom/releases/press590.php

Documents the June 18, 2026, U.S.–Iran memorandum of understanding to end the conflict and reopen the Strait of Hormuz. (A separate EIA Today in Energy article dated July 15, 2026, gives the signing date as June 17.)

Congressional Research Service. (2026). U.S. and Israeli military operations against Iran: Issues for Congress (CRS Insight IN12662). Library of Congress. https://www.congress.gov/crs-product/IN12662

States that the United States and Israel launched military operations against Iran on February 28, 2026. Source for the war start date used in Sections 5 and 7.

Minton, R., Ray, M., & Somale, M. (2026, April 8). Detecting tariff effects on consumer prices in real time – Part II (FEDS Notes). Board of Governors of the Federal Reserve System. https://www.federalreserve.gov/econres/notes/feds-notes/detecting-tariff-effects-on-consumer-prices-in-real-time-part-II-20260408.html

Estimates tariffs implemented through November 2025 raised core goods PCE prices 3.1% and overall core PCE prices 0.8% through February 2026. Measures PCE prices, not CPI.

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