Social Security COLA by Year (1975-2026): Complete History

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.

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 1983 amendments, drawn from the Greenspan Commission, moved when the larger checks arrive 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 adjustment was effective in December 1983 and first paid in January 1984. The same law made up to half of Social Security benefits taxable for higher-income recipients, using thresholds that were never indexed and now affect many retirees.

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 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 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.

The 2026 COLA is 2.8%, announced in October 2025 and reflected in benefit checks beginning January 2026. That matches the 2.8% average for payment years 1984-2026. The complete 1975-2026 series averages 3.7%, pulled higher by the double-digit inflation adjustments of 1979-1981. The next COLA, for 2027, will be set from third-quarter 2026 price data and announced in October 2026.