The 2027 Social Security cost-of-living adjustment, or COLA, is the yearly benefit increase that protects purchasing power against inflation. Forecasts point to about a 3.5% increase, which would add about $71 per month to the average retired-worker check before deductions. The official percentage was still pending in mid-October 2026. It will apply to payments received in January 2027 for retirement, disability, survivor, and Supplemental Security Income beneficiaries.
Table of Contents
- How is the 2027 COLA decided?
- How large could the raise be?
- Who receives the increase and when?
- How much will you keep after Medicare?
- What should retirees do before January?
How is the 2027 COLA decided?
Federal law ties the COLA to inflation measured by the Consumer Price Index for Urban Wage Earners, called CPI-W. The Social Security Administration compares average CPI-W for July, August, and September with the same quarter last year.
September data therefore decides the final percentage. USA Today reported the agency was expected to announce the result on October 14, 2026, alongside September inflation data announcement timing.
How large could the raise be?
After August inflation data, the nonpartisan Senior Citizens League projected a 3.5% COLA, matched by independent analyst Mary Johnson, while AARP projected 3.6% late forecast range. Investopedia noted that range would top the 2.8% COLA paid in 2026. That publication also noted it would be the largest increase since the 8.7% COLA for 2023.
A higher percentage matters because it compounds on the current benefit base. A 3.5% increase on the 2026 average retired-worker benefit of $2,033.27 would raise the average to $2,104.43 average benefit calculation. That equals about $71 more each month, or $854 per year before deductions.
Who receives the increase and when?
The higher payment affects tens of millions of retired workers, according to FinanceBuzz. It also applies to people receiving Social Security Disability Insurance, Supplemental Security Income, and survivor benefits.
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The new amount first appears in benefits paid in January 2027. Social Security usually mails or posts an annual notice showing the new gross benefit.
How much will you keep after Medicare?
Many retirees have the Medicare Part B premium taken directly from their Social Security payment. The 2026 Medicare Trustees Report projects the standard 2027 premium at $209.50, up $6.60 from $202.90 in 2026 premium projection. The net gain therefore depends on both numbers.
The Motley Fool noted 2027 could be the first year since 2023 when the COLA percentage exceeds Part B's projected 3.25% rise. That crossover means retirees would keep more of the raise than in recent years. Both figures remain estimates until September CPI is final and Medicare finalizes Part B, usually in November.
What should retirees do before January?
Use the forecast for planning, but budget on the net amount. Your actual increase depends on your benefit, Part B enrollment, and any tax withholding or other deductions. Compare your December notice with your January deposit to confirm the net change.
- Find your current gross benefit and likely percentage increase.
- Subtract your expected Part B premium and other deductions.
- Check your December COLA notice before changing automatic transfers.
- Delay large budget changes until the January deposit confirms the net amount.
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