Guide · Social Security
The 2027 Social Security COLA, explained
Every autumn, Social Security raises benefits to keep up with the cost of living. This guide walks you through what that cost-of-living adjustment (COLA) really is, how it's worked out, what recent years looked like, and why the raise that lands in your bank account can feel smaller than the headline number. Plain language, no jargon.
Confirmed by SSA: 2027 COLA 3.6% Announced October 14, 2026.
What the COLA is, and why it exists
A cost-of-living adjustment, or COLA, is the yearly raise Social Security adds to your benefit so that rising prices don't quietly shrink what your check can buy. If groceries, gas, and rent all cost more this year than last, a fixed benefit would stretch less far each month. The COLA is designed to offset that.
Congress built automatic COLAs into Social Security back in 1975. Before then, it took an act of Congress to raise benefits, and increases often lagged years behind inflation. Now the adjustment happens on a set schedule, tied to a government measure of prices — no vote required. The goal is simple: protect the buying power of the benefit you've already earned.
The raise takes effect with your January payment, and it's permanent. Each year's COLA is added on top of the benefit you're already receiving, so the increases compound over time.
How the COLA is calculated
The COLA isn't a guess or a political decision. It comes from a formula written into law, based on one specific inflation gauge:
- The index used is CPI-W — the Consumer Price Index for Urban Wage Earners and Clerical Workers, published by the U.S. Bureau of Labor Statistics. This is a different, older index than the CPI-U figure you often hear quoted in the news.
- Only the third quarter counts. The formula looks at the average CPI-W for July, August, and September — the third quarter of the year.
- It's a year-over-year comparison. That Jul–Aug–Sep average is compared with the same quarter of the last year a COLA took effect. The percentage increase between the two is the COLA.
- It's rounded to the nearest tenth of a percent (0.1%).
In plain terms: prices are averaged across three late-summer months, this year's average is stacked against last year's, and the percentage jump becomes your raise.
A worked example (the last completed determination: 2026)
Here's how the 2026 COLA of 2.8% was actually produced — the most recent determination with SSA's published quarterly averages. The third-quarter CPI-W average rose from one year to the next, and the percentage change — rounded to a tenth — is the raise.
| Step | Value |
|---|---|
| Average CPI-W for Jul–Aug–Sep 2024 | 308.729 |
| Average CPI-W for Jul–Aug–Sep 2025 | 317.373 |
| Increase (317.373 − 308.729) | 8.644 |
| Percentage change (8.644 ÷ 308.729) | 2.80% |
| Rounded to the nearest 0.1% | 3.6% |
Source: U.S. Bureau of Labor Statistics CPI-W (series CWUR0000SA0) and the Social Security Administration. The 2027 COLA of 3.6% was announced on October 14, 2026.
A short history of recent COLAs
Because the COLA follows inflation, it swings from year to year. The big 2023 increase reflected the high inflation of 2022; the smaller, calmer numbers since then track prices settling down.
| Year the raise took effect | COLA | Status |
|---|---|---|
| 2023 | 8.7% | Confirmed |
| 2024 | 3.2% | Confirmed |
| 2025 | 2.5% | Confirmed |
| 2026 | 2.8% | Confirmed |
| 2027 | 3.6% | Confirmed |
Here is how recent COLAs compare at a glance:
| Item | COLA |
|---|---|
| 2023 | 8.7% |
| 2024 | 3.2% |
| 2025 | 2.5% |
| 2026 | 2.8% |
| 2027 | 3.6% |
The 2027 COLA is 3.6%. The Social Security Administration announced it on October 14, 2026, right after the BLS released September CPI-W — the official number, no longer an estimate.
What the 3.6% raise means in dollars
Confirmed by SSA Announced October 14, 2026. A COLA is a percentage of your own benefit, so the same raise lands as a different dollar amount on every check. The table below applies the confirmed 2027 COLA of 3.6% to the benefit levels Social Security publishes, so you can find the one closest to yours.
| Benefit level | Monthly 2026 | Monthly 2027 | Change | Per year |
|---|---|---|---|---|
| Average retirement benefit | $2,071 | $2,145 | +$74 | +$888 |
| Maximum benefit at full retirement age | $4,152 | $4,301 | +$149 | +$1,788 |
| SSI (individual) | $994 | $1,029 | +$35 | +$420 |
| SSI (eligible couple) | $1,491 | $1,544 | +$53 | +$636 |
| Retired couple (two average benefits) | $4,142 | $4,291 | +$149 | +$1,788 |
Monthly amounts are the current benefit-year figures from the Social Security Administration's annual COLA fact sheet — the average retirement benefit, the maximum for a worker retiring at full retirement age, and the SSI federal payment standards — with the confirmed 2027 adjustment of 3.6% applied and rounded down to the whole dollar the way SSA rounds benefits. "Retired couple" means two people each receiving the average benefit. The 3.6% figure is official — the Social Security Administration announced it on October 14, 2026.
Why your raise feels smaller than the headline
Here's the part that surprises many people. A COLA is a percentage of your own benefit, so the dollar amount depends on the size of your check. Take a round example: on a benefit of $2,000, a 3% raise works out to $60 a month before anything is taken out. But that's not usually the amount your deposit grows by.
For most retirees, the Medicare Part B premium is deducted straight from the Social Security payment. When Part B goes up — and it often does — the increase eats into your COLA. Your gross benefit rises by the full percentage, but the number that actually lands in your bank account grows by less. In some years, a higher Part B premium has swallowed a large share of the raise.
The two numbers to keep separate
Your gross raise is your benefit times the COLA. Your net raise is what's left after Part B is withheld. The gap between them is why a "3.6% raise" can feel like less. We break this down in detail in Part B premiums and your COLA, and the projected 2027 Part B premium shows next year's side of that ledger.
None of this means the COLA isn't real — it is, and it's permanent. It just means the headline percentage and the change to your deposit are two different figures worth looking at side by side.
See what it means for your own check
The clearest way to understand the COLA is to run your own numbers. Our calculator applies the COLA to your benefit and then subtracts Part B, so you see both the gross raise and the amount you actually keep. Nothing you type ever leaves your device.
Estimate your own raise
Enter your benefit, pick a COLA, and see your 2027 increase before and after Medicare Part B.
Open the COLA calculator →Key dates for this fall
The 2027 COLA was announced October 14, 2026. Medicare enrollment runs Oct 15 – Dec 7.
See the timeline →Frequently asked questions
Is the 2027 COLA of 3.6% official?
Yes. The Social Security Administration announced the 2027 COLA of 3.6% on October 14, 2026.
Which inflation index does the COLA use?
It uses CPI-W — the Consumer Price Index for Urban Wage Earners and Clerical Workers — not the more commonly quoted CPI-U. Specifically, it compares the average CPI-W for July, August, and September against the same quarter of the last year a COLA took effect, rounded to the nearest tenth of a percent. You can review the raw index on the BLS Consumer Price Index page.
When does the raise actually start?
The COLA takes effect with your January payment and is permanent. Each year's adjustment is added on top of the benefit you already receive, so increases build on one another over time.
Why did my deposit go up by less than the COLA percentage?
Because Medicare Part B is usually withheld from your Social Security check. Your gross benefit rises by the full COLA, but if the Part B premium also increases, the change to your actual deposit is smaller. Our COLA calculator shows both figures side by side.
How much more will the average Social Security check pay in 2027?
With the confirmed 2027 COLA of 3.6%, the average retirement benefit of $2,071 a month becomes $2,145 — an increase of +$74 a month, or +$888 a year. The 3.6% figure is official — the Social Security Administration announced it on October 14, 2026.
How much will SSI payments go up in 2027?
Applying the confirmed 3.6% adjustment, the 2026 federal payment standard of $994 a month for an eligible individual becomes $1,029 (+$35 a month), and the standard for an eligible couple goes from $1,491 to $1,544 (+$53 a month). SSA publishes the official 2027 SSI amounts with its October announcement.
What is the biggest 2027 increase anyone can get?
The largest check the COLA percentage applies to is the maximum benefit for a worker retiring at full retirement age: $4,152 a month in 2026. A 3.6% raise makes it $4,301 — +$149 more each month, or +$1,788 a year. Workers who delay claiming past full retirement age receive a larger benefit, and their dollar increase is larger too.
When will the 2027 raise show up in my payment?
The increase takes effect with your January 2027 payment. SSA mails the COLA notice — the letter stating your exact new amount — in December, and the same notice usually appears in your my Social Security message center before the paper letter arrives.
How do I calculate my own 2027 increase?
Multiply your current gross monthly benefit by 3.6% and round down to the whole dollar — that is your new gross benefit. What actually lands in your bank account also depends on your Medicare Part B premium, which is why our COLA calculator shows both the gross raise and the raise you keep.
Where do these numbers come from?
Everything here comes from public government sources: the Bureau of Labor Statistics for CPI-W and the Social Security Administration for the COLA. BenefitDial is independent — we take no commissions, sell no data, and never ask for your phone number. Read how it works.