How Social Security COLA Works and Affects Your Benefits

The 2026 Social Security COLA is 2.8 percent, and it takes effect with the January 2026 payment for roughly 75 million people receiving Social Security or Supplemental Security Income.¹ On the average retired worker’s check, that works out to a gross benefit of about $2,076 a month, though your actual figure depends on your earnings record and when you claimed.²

The same 2.8 percent applies across retirement, survivor, and disability benefits, and to SSI as well. After the adjustment, the maximum federal SSI payment is $994 a month for an individual and $1,491 for a couple, with some states adding a supplement on top.³

When the Increase Hits Your Account

Social Security pays one month behind, so the COLA is technically effective for December 2025 but shows up in the January 2026 check. SSI runs on a different schedule. It pays on the first of the month, and because January 1 is a federal holiday, SSI recipients got their first increased payment on December 31, 2025.⁴

Figuring Out Your New Payment

Start with your gross benefit, which is the amount before any deductions. You’ll find it on your most recent benefit verification letter or in your online Social Security account. Multiply by 0.028. On a $2,000 gross benefit, that’s an extra $56 a month.

The net check you actually receive will be smaller, because Medicare Part B premiums are usually withheld directly from Social Security.⁵ For 2026, the standard Part B premium is $202.90.⁶ So a $2,056 gross benefit after the COLA becomes roughly $1,853.10 net before any tax withholding.

One quirk in the math: after your new amount is calculated, it’s rounded down to the next lower ten cents. A benefit that lands at $1,800.18 pays out as $1,800.10.⁷ Your actual increase is always a hair less than 2.8 percent.

What Happens If the Part B Premium Eats Your Raise

Federal law includes a protection called the hold harmless provision. Under Section 1839(f) of the Social Security Act, a Part B premium increase cannot drop your Social Security check below what you received the prior November. If the numbers would produce that result, the premium hike is capped and your net payment stays level.⁸

To be covered, you have to meet all of these:

You’re already enrolled in Part B.
Your Part B premium is deducted from your Social Security check, not paid separately.
You don’t pay the higher Income-Related Monthly Adjustment Amount (IRMAA) surcharge.

People new to Medicare during the current year also fall outside the protection. The provision matters most when the COLA is small and the Part B premium jump is large, which hasn’t been the pattern in recent years but has happened several times over the past decade.

The Tax Threshold Trap

The income thresholds that decide whether your Social Security benefits are taxable have never been indexed for inflation. They were set in the 1980s and 1990s and haven’t moved since, so each COLA can quietly push more of your benefits into taxable territory.

The IRS uses “combined income,” which is your adjusted gross income plus any tax-exempt interest plus half of your Social Security benefits. The share of your benefits that becomes taxable depends on where that number lands:⁹

Single filers with combined income between $25,000 and $34,000: up to 50 percent of benefits may be taxable.
Single filers above $34,000: up to 85 percent may be taxable.
Joint filers between $32,000 and $44,000: up to 50 percent may be taxable.
Joint filers above $44,000: up to 85 percent may be taxable.
Married filing separately while living together: up to 85 percent is generally taxable regardless of income.

If you’re sitting close to one of those boundaries, even a modest raise can tip you over.

Earnings Test Limits for 2026

If you’re collecting retirement benefits before full retirement age and still earning wages, the earnings test limit adjusted alongside the COLA. For 2026:¹⁰

Under full retirement age for the whole year: you can earn up to $24,480, and $1 is withheld for every $2 above that.
Reaching full retirement age during 2026: the limit is $65,160, with $1 withheld for every $3 over the limit, counting only earnings before the month you hit full retirement age.
At or past full retirement age: no limit applies.

Withheld money isn’t lost. Once you reach full retirement age, the Social Security Administration recalculates your benefit to credit back the withheld months, which raises your monthly amount going forward.

How to See Your Personal COLA Notice

The quickest way to see your new payment amount is through the my Social Security portal at ssa.gov.¹¹ After you log in, the COLA notice sits in the Message Center. Electronic notices usually appear in late November, weeks before the paper version arrives.¹²

The notice shows your new gross benefit, any Medicare premium deduction, and your net payment. Download a copy while you’re there. Landlords, lenders, and benefits programs regularly ask for proof of income, and a current verification letter saves a trip back to the site.

Where the 2.8 Percent Came From

Social Security measures inflation using the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W). It compares the average CPI-W for July, August, and September of the current year against the same three months from the last year a COLA took effect. If prices rose, benefits rise by the same percentage. If prices stayed flat or fell, benefits hold steady. They never decrease.⁴

The 2.8 percent figure for 2026 sits in line with the long-run average of roughly 2 to 3 percent, and represents a step back toward normal after several volatile years. The 2023 COLA of 8.7 percent was the largest in more than 40 years, followed by 3.2 percent in 2024 and 2.5 percent in 2025.¹³

1
Social Security Administration. Social Security Announces 2.8 Percent Benefit Increase for 2026
2
Social Security Administration. Monthly Statistical Snapshot, April 2026
3
Social Security Administration. SSI Federal Payment Amounts
4
Social Security Administration. Latest Cost-of-Living Adjustment
5
Medicare. How to Pay Part A and Part B Premiums
6
Centers for Medicare and Medicaid Services. 2026 Medicare Parts A and B Premiums and Deductibles
7
Social Security Administration. Rounding of Benefit Rates
8
Social Security Administration. Social Security Act Section 1839
9
Office of the Law Revision Counsel. 26 USC 86 – Social Security and Tier 1 Railroad Retirement Benefits
10
Social Security Administration. Benefits Planner – Receiving Benefits While Working
11
Social Security Administration. my Social Security
12
Social Security Administration. Cost-of-Living Adjustment (COLA) Information
13
Social Security Administration. Social Security Cost-Of-Living Adjustments