Social Security COLA History
Last verified: May 20, 2026 against SSA Office of the Chief Actuary COLA history
From the desk of Jessie: ex-MBB consultant, writes the editorial here. See more by Jessie.
Every cost-of-living adjustment since automatic COLAs began in 1975, from the 14.3% peak to the three years that delivered no raise at all.
Sources: SSA Office of the Chief Actuary COLA series, Bureau of Labor Statistics CPI-W and CPI-E data. Figures are labeled by the year the higher benefit is first paid.
The major changes
The COLA has been remarkably stable as a mechanism since 1975. The headline changes are not to the formula itself but to its timing, its trigger, and the recurring argument over whether it measures the right basket of goods.
The automatic COLA begins
Before 1975, raising Social Security benefits required an act of Congress, which meant increases were irregular and politically timed. Benefits often lagged inflation for years, then jumped when an election approached. The 1972 amendments replaced that with an automatic annual COLA tied to consumer prices, starting with the 8.0% increase paid in 1975. The reform took the raise out of politicians' hands and tied it to a formula.
The double-digit peak
Late-1970s inflation produced the two largest COLAs on record: 14.3% in 1980 and 11.2% in 1981. These were not generosity; they were the formula doing its job during a period when consumer prices were rising at double-digit rates. The size of these adjustments, combined with a flawed benefit formula from the 1972 amendments, helped push Social Security toward the funding crisis that the 1983 reforms had to fix.
The Greenspan reforms shift the timing
The 1983 amendments, drawn from the Greenspan Commission, moved the COLA's effective date from July to the following January. This created a one-time six-month gap: the July 1982 raise was the last summer adjustment, and the next did not arrive until January 1984. The same law made up to half of Social Security benefits taxable for higher-income recipients, a threshold that, like IRMAA later, was never indexed and now reaches most retirees.
The 3% trigger is removed
Originally, no COLA was paid unless inflation reached at least 3%. A 1986 change removed that floor, so any positive change in the index now produces a COLA, even a fraction of a percent. This is why 2017 saw a 0.3% adjustment rather than nothing. The change also set up the possibility of a 0% COLA in years when the index does not rise at all.
The first years with no raise
The 2008-09 spike and collapse in energy prices left the third-quarter price index lower than its previous peak. Because a COLA can never be negative, benefits stayed flat: 0% in both 2010 and 2011, the first zero adjustments since automatic COLAs began. A third 0% year followed in 2016. In each case, retirees received no raise while many of their actual costs, especially medical, kept rising.
The 8.7% pandemic-era raise
The post-pandemic inflation surge produced an 8.7% COLA in 2023, the largest since 1981. For a retiree receiving $2,000 a month, that was an extra $174 per check. The size of the adjustment renewed a long-running debate about whether the CPI-W, which weights the spending of working-age wage earners, accurately reflects what retirees actually buy.
Where the COLA stands today
The 2026 COLA is 2.8%, announced in October 2025 and reflected in benefit checks beginning January 2026. After the 5.9%, 8.7%, and 3.2% adjustments of the early 2020s, the figure has returned to a range closer to the long-run average of roughly 2.5 to 3%. The next COLA, for 2027, will be set from third-quarter 2026 price data and announced in October 2026.
Things you might not know
- The COLA is set from only three months of data. It uses the average CPI-W for July, August, and September, compared to the same three months of the prior year. Price movements in the other nine months do not directly affect the figure, which is why a quiet summer and a noisy winter can produce a COLA that feels out of step with the inflation people remember.
- A 0% COLA freezes more than the check. In years with no COLA, several thresholds tied to the adjustment also stay flat, and the hold-harmless math that protects Part B premiums becomes more important. The 2016 zero-COLA year forced a complicated set of premium rules to keep most retirees\' net checks from falling.
- The CPI-E would usually, but not always, be higher. The experimental elderly index has averaged a couple of tenths of a percent higher than CPI-W over the long run, mostly because of medical and housing weights. But in years when energy prices spike, CPI-W can briefly run higher, since wage earners spend more on gasoline and commuting. The case for CPI-E is a long-run case, not a guarantee in any single year.
- The 1972 formula had a famous flaw. The original automatic-COLA formula double-counted inflation in the benefit calculation, over-indexing benefits for people retiring in the late 1970s. The 1977 amendments fixed it, but the fix created the so-called notch, where people born in 1917 through 1921 received somewhat lower benefits than those just before them. The notch generated decades of complaints and several failed bills to reverse it.
- SSI and other programs ride the same COLA. The percentage that adjusts retirement benefits also adjusts Supplemental Security Income, the maximum taxable wage base growth in adjacent formulas, and the earnings limits for working beneficiaries. One number set in October ripples through the entire benefit system the following January.
Why the COLA feels smaller than it reads
From the desk of Jessie: the COLA is one of the most-read numbers we cover, and it is also one of the most misunderstood, because people experience it net of Medicare. When the 8.7% raise landed in 2023, a lot of the coverage framed it as a windfall. For many retirees it was not, because the Part B premium increase came out of the same check, and because the prices that drove the 8.7%, especially groceries and energy, kept climbing into the year the raise was meant to cover. A COLA always looks backward. It compensates for inflation that already happened, set from last summer\'s data, and arrives months later. That lag is the honest reason a raise can feel like a cut. If you are planning a retirement budget, the practical move is to treat the COLA as a rough inflation hedge rather than a real income gain, and to plan your own drawdown to cover the gap between what the formula measures and what your actual costs do.
Going deeper on Social Security claiming
The COLA is only one lever. Get What's Yours: The Revised Secrets to Maxing Out Your Social Security by Laurence Kotlikoff, Philip Moeller, and Paul Solman is the standard reference on claiming strategy, spousal and survivor benefits, and the timing math that determines the base your COLA is applied to.
Find it on AmazonAs an Amazon Associate, PennyCalc earns from qualifying purchases. This costs you nothing extra and does not influence our editorial content.
Social Security COLA by year
Every cost-of-living adjustment since automatic COLAs began in 1975, labeled by the calendar year the larger benefit is first paid. There is no 1983 entry: the Greenspan reforms shifted the COLA from July to the following January, skipping an increase that year.
| Year | COLA | What changed that year |
|---|---|---|
| 1975 | 8% | Automatic annual COLA begins; before this, increases required an act of Congress |
| 1976 | 6.4% | |
| 1977 | 5.9% | |
| 1978 | 6.5% | |
| 1979 | 9.9% | |
| 1980 | 14.3% | Highest COLA on record: 14.3%, driven by late-1970s inflation |
| 1981 | 11.2% | |
| 1982 | 7.4% | |
| 1984 | 3.5% | Greenspan reforms shift the COLA from July to January, skipping a 1983 increase |
| 1985 | 3.5% | |
| 1986 | 3.1% | |
| 1987 | 1.3% | |
| 1988 | 4.2% | |
| 1989 | 4% | |
| 1990 | 4.7% | |
| 1991 | 5.4% | |
| 1992 | 3.7% | |
| 1993 | 3% | |
| 1994 | 2.6% | |
| 1995 | 2.8% | |
| 1996 | 2.6% | |
| 1997 | 2.9% | |
| 1998 | 2.1% | |
| 1999 | 1.3% | |
| 2000 | 2.5% | |
| 2001 | 3.5% | |
| 2002 | 2.6% | |
| 2003 | 1.4% | |
| 2004 | 2.1% | |
| 2005 | 2.7% | |
| 2006 | 4.1% | |
| 2007 | 3.3% | |
| 2008 | 2.3% | |
| 2009 | 5.8% | |
| 2010 | 0% | First-ever 0% COLA after the 2008-09 deflationary shock; repeated in 2011 |
| 2011 | 0% | |
| 2012 | 3.6% | |
| 2013 | 1.7% | |
| 2014 | 1.5% | |
| 2015 | 1.7% | |
| 2016 | 0% | |
| 2017 | 0.3% | |
| 2018 | 2% | |
| 2019 | 2.8% | |
| 2020 | 1.6% | |
| 2021 | 1.3% | |
| 2022 | 5.9% | |
| 2023 | 8.7% | 8.7% COLA, the largest since 1981, after the post-pandemic inflation spike |
| 2024 | 3.2% | |
| 2025 | 2.5% | |
| 2026 | 2.8% |
Full series shown. Scroll within the table to see every year.
Frequently Asked Questions
What is the 2026 Social Security COLA?
How is the COLA calculated?
What was the highest and lowest COLA ever?
Why do retirees say the COLA understates their costs?
Does the Medicare premium reduce my COLA?
How did benefit increases work before 1975?
The COLA adjusts benefits funded by the Social Security wage base, and most retirees see it net of the Medicare Part B premium. To build it into a drawdown plan, use the retirement calculator. For sources and update cadence, see our methodology.
Related Calculators
Social Security Wage Base History
The taxable maximum that funds the benefits the COLA adjusts.
Retirement Calculator
Model an inflation-adjusted drawdown with a Social Security offset.
Medicare Premium History
The Part B premium that is deducted from most benefit checks.
Tax Bracket Calculator
See how taxable Social Security stacks with other retirement income.
Compound Interest Calculator
Project how an inflation-adjusted income stream compounds over a retirement.
Methodology
How we source and verify every rate, limit, and bracket.
Educational content only. COLA figures are from the SSA Office of the Chief Actuary and are labeled by the year the increase is first paid. Consult the Social Security Administration for benefit decisions specific to your situation.