The Social Security 2027 COLA is on track to be the biggest cost-of-living raise in four years. The Senior Citizens League (TSCL) and independent policy analyst Mary Johnson both project 3.5%, and AARP is at 3.6%. If the number holds, it would tie for the sixth-largest COLA since 1993, and it would beat this year’s 2.8% by a wide margin. The Social Security Administration will confirm the figure on October 14, when the Bureau of Labor Statistics publishes September inflation data, the last reading the formula needs. For the roughly 71 million people who receive traditional Social Security benefits, it is the most watched number of the fall.
Behind the headline sit three forces pushing prices up: tariffs on imported goods, an oil and diesel shock tied to the war with Iran, and the cost of building out artificial intelligence infrastructure. A bigger raise sounds like good news, but it exists because prices rose faster, and one part of the increase may be taken back by a higher Medicare Part B premium. We will be updating this article monthly. Below you will find the forecasts, the history table, the effect on an average check, the payment calendar, a calculator, and official links.
Social Security 2027 COLA Key Highlights and Dates
| Item | Latest detail |
|---|---|
| Projected 2027 COLA (TSCL and Mary Johnson) | 3.5% |
| Projected 2027 COLA (AARP) | 3.6% |
| Range across forecasts after August data | 3.4% to 3.6% |
| 2026 COLA | 2.8% |
| Official announcement date | Wednesday, October 14, 2026 |
| New amounts take effect | January 2027 payments |
| Average retired worker benefit (TSCL figure) | $1,940.08 per month |
| Projected increase at 3.5% | About $67.90 per month |
| Average benefit after a 3.5% raise | About $2,007.98 |
| Projected 2027 Medicare Part B premium | $209.50 (up 3.25% from $202.90) |
| Traditional Social Security beneficiaries | More than 71 million |
Latest Forecasts: Where the Social Security 2027 COLA Stands Now?
Forecasters revised their numbers after the August inflation report came out on September 11. TSCL trimmed its estimate from 3.6% to 3.5%, saying its model expects inflation to rise slightly over the final two months of the measurement window rather than jump. Johnson landed on the same 3.5%. AARP moved its own forecast up to 3.6%. Taken together, the estimates sit between 3.4% and 3.6%.
The differences are small in dollar terms. On an average benefit of $1,940.08, a 3.4% raise adds about $65.96 a month, 3.5% adds $67.90, and 3.6% adds $69.84. Nobody knows which one will be right until the September figure arrives. TSCL’s own spokespeople have said seniors could be disappointed whether the number lands slightly above or below their forecast, which speaks to how little a single percentage point can change a retiree’s budget.
One reason the forecast has wobbled is volatility. Monthly inflation has bounced around this year, with energy prices doing much of the swinging. In August, prices rose 0.4% from July, the largest monthly gain since May, but the yearly rate moved less than the monthly numbers suggested. If September comes in cooler than expected, the final COLA could slip below 3.5%. If it runs hot, the COLA could reach or pass 3.6%.
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How the COLA Is Calculated?
The rule is simple, and it is written in law. The Social Security Administration takes the average of the Consumer Price Index for Urban Wage Earners and Clerical Workers, known as CPI-W, for July, August, and September of this year. It compares that average with the same three month average from last year. The percentage difference, rounded to the nearest tenth, is the COLA.
That is why the September report matters so much. July and August are already in the books. Only September is left, and it decides the final decimal.
Two features of this design surprise people. First, CPI-W tracks the spending of urban wage earners and clerical workers, not retirees, so it does not weigh medical costs and housing the way many seniors experience them. Second, the COLA looks backward. It reflects price increases already absorbed over the past year, so if inflation speeds up in 2027, the raise may fall short of what retirees actually pay.
Why This Could Be the Sixth-Largest COLA Since 1993
A 3.5% COLA would not be historic in the way the 2023 raise was, but it would place high on the list. Here are the largest raises since 1993, based on Social Security Administration figures.
| Rank | COLA year | Raise |
|---|---|---|
| 1 | 2023 | 8.7% |
| 2 | 2022 | 5.9% |
| 3 | 2009 | 5.8% |
| 4 | 2006 | 4.1% |
| 5 | 2012 | 3.6% |
| 6 (tie) | 2001 and projected 2027 | 3.5% |
Recent history explains why 3.5% feels large. The COLA was 3.2% in 2024, 2.5% in 2025, and 2.8% in 2026. Between 2010 and 2019, the raise averaged about 1.4% a year. From 2020 through 2025 it averaged roughly 3.7%. A 3.5% adjustment is therefore normal for this decade but generous by the standard of the 2010s, when three years, 2010, 2011, and 2016, brought no raise at all.
The Three Forces Behind the Social Security 2027 COLA
Analysts point to three developments that are lifting the CPI-W. They are contested topics, and economists disagree on how much each one contributes, so read the following as a summary of what is being reported rather than a settled accounting.
Force one: tariffs and trade policy
Tariffs work like a tax on imported goods. When companies pay more to bring in materials and finished products, they often raise prices, which shows up in the inflation data. New tariffs announced in April 2025 pushed prices up last year and modestly lifted the 2026 COLA. The Supreme Court invalidated those particular tariffs in February 2026, but the administration reinstated broad duties on more than 80 countries in July under a different legal justification. Commentators expect that renewed round to keep upward pressure on consumer prices through the third quarter, which is the very period that sets the COLA.
Force two: the Iran war and the energy shock
Military operations began on February 28, and Iran then closed the Strait of Hormuz to nearly all commercial shipping. That waterway carries a large share of the world’s crude oil, so energy prices climbed. AAA reported diesel at a record $6.53 a gallon in late September. Diesel fuels trucks, farm equipment, and freight, so the cost reaches groceries and household goods, not just the gas pump. Businesses are also paying more to reroute shipments and to buy petroleum based products such as plastics. Because of that spread, the effect shows up in more than energy prices.
Force three: the AI infrastructure build-out
The race to build data centers has created strong demand for graphics processors and high bandwidth memory. Shortages have raised the prices of those components, and the costs flow downstream to consumers through devices and services. Federal Reserve Chair Kevin Warsh has also said the competition among large technology companies for capital has contributed to higher long term bond yields. For retirees, the practical effect is indirect, but it feeds into a broader price picture that the CPI-W captures.
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What a 3.5% COLA Means for the Average Social Security Check?
Take the average retired worker benefit reported by TSCL, $1,940.08 a month. At 3.5%, that check grows by $67.90 to $2,007.98. Over a year, that is about $814.80 more before taxes and premiums. The same percentage produces very different dollar amounts depending on where you start.
| Monthly benefit now | Increase at 3.5% | New monthly amount |
|---|---|---|
| $1,000 | $35.00 | $1,035.00 |
| $1,500 | $52.50 | $1,552.50 |
| $1,940.08 | $67.90 | $2,007.98 |
| $2,500 | $87.50 | $2,587.50 |
| $3,000 | $105.00 | $3,105.00 |
Will Medicare Part B Eat Part of the Raise?
Possibly a small part. The 2026 Medicare Trustees Report projects the standard Part B premium at $209.50 in 2027, up 3.25% from $202.90 this year. That is $6.60 more each month. For most beneficiaries, the premium comes out of the Social Security check automatically, so the net gain shrinks. On the average benefit, the $67.90 increase would drop to roughly $61.30 after the higher Part B deduction.
The premium is not final until the Centers for Medicare and Medicaid Services confirms it, usually in the fall. People with higher incomes pay income related surcharges on top of the standard amount. Anyone who does not pay Part B through their benefit, or who has Medicaid or a state program covering the premium, will see a different net effect.
Taxes and the Buying Power Problem
Two quieter issues deserve a mention. The income thresholds that determine whether Social Security benefits are taxable, $25,000 for single filers and $32,000 for joint filers, were set decades ago and are not indexed to inflation. Each COLA nudges more retirees over those lines, so part of the raise can go to federal tax for people with other income.
The second issue is buying power. TSCL estimates that Social Security benefits lost 13.7% of their purchasing power between 2016 and 2026 as prices for the things retirees buy outran the adjustments. Its 2026 senior survey found 89% of older Americans thought the 2026 COLA was too low, and 44% said Social Security supplied all of their income. Advocates argue the CPI-W understates senior costs. Others say it is a reasonable measure that protects benefits without overpaying. The debate is unresolved, and it matters because a larger COLA driven by faster inflation may not leave retirees ahead.
There is also a program side effect. Bigger COLAs raise the cost of paying benefits. Some analysts note that a sixth-largest COLA could speed up the depletion of the retirement trust fund reserves compared with earlier projections. The Trustees Report, linked below, has the official projections, and those numbers change each year.
How to Check Your New Benefit Amount and Get Your COLA Notice?
There is nothing to apply for. The COLA is automatic for retirement, survivor, and disability beneficiaries and for people who receive Supplemental Security Income. Use these steps to see your new amount.
- Go to the Social Security Administration website and sign in to your personal my Social Security account, or create one if you have never registered. Registration uses a login.gov or ID.me credential.
- Open the message center after the announcement. The agency posts COLA notices there and can send an email or text alert if you turn on notifications.
- Read the notice for your new gross amount, your Medicare premium deduction, and your net payment.
- Check that your address and direct deposit details are correct so the notice and payment reach you.
- If a figure looks wrong, call the agency or visit a local office and ask for a review.
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Processing Time: When the Increase Takes Effect
The announcement comes on October 14. The new benefit amounts begin with payments in January 2027, which cover the month of December. The agency sends COLA notices in December, and online notices generally appear in my Social Security accounts earlier than paper letters. If your Part B premium changes, the notice reflects it.
Nothing needs to be processed on your side, so there is no waiting period to apply for. If your notice does not arrive by the end of December, check your online account before contacting the agency.
Payment Schedule for the First COLA Check
Payment dates depend on your birthday and when you started receiving benefits. Here is the general pattern for January 2027.
| Group | Payment date |
|---|---|
| Birthday on the 1st to 10th | Second Wednesday, January 13 |
| Birthday on the 11th to 20th | Third Wednesday, January 20 |
| Birthday on the 21st to 31st | Fourth Wednesday, January 27 |
| Started before May 1997, or receive both Social Security and SSI | Usually the 3rd of the month |
| SSI recipients | Usually the 1st of the month |
When the 1st or 3rd lands on a weekend or holiday, payment typically arrives on the prior business day. January 1, 2027 is a holiday, so SSI recipients may see the increase land at the end of December. Check the agency’s payment calendar for your exact date.
Use the Social Security COLA Calculator
Social Security 2027 COLA Calculator
Uses $202.90 now and $209.50 projected for 2027.
Estimate only. The official 2027 COLA is announced October 14, 2026. Taxes and other deductions are not included.
Official Resources and Links
| Resource | What it covers | Link |
|---|---|---|
| Social Security COLA page | Official COLA history and announcement | https://www.ssa.gov/oact/cola/ |
| my Social Security (login and registration) | View benefits, notices, and messages | https://www.ssa.gov/myaccount/ |
| Bureau of Labor Statistics CPI | Inflation data and release calendar | https://www.bls.gov/cpi/ |
| BLS release schedule | Exact CPI release date and time | https://www.bls.gov/schedule/news_release/cpi.htm |
| Social Security Trustees Reports | Program finances and projections | https://www.ssa.gov/oact/TR/ |
| Medicare costs | Part B premiums and surcharges | https://www.medicare.gov/basics/costs/medicare-costs |
| The Senior Citizens League | Monthly COLA forecasts | https://seniorsleague.org |
FAQs
How much will Social Security increase in 2027?
Forecasts point to about 3.5%, with a range of 3.4% to 3.6%. The official number arrives October 14.
When will the 2027 COLA be announced?
On Wednesday, October 14, 2026, when the Bureau of Labor Statistics releases the September CPI report.
Is the 3.5% COLA guaranteed?
No. It is a projection. The September inflation reading can still move it up or down by a tenth or two.
How is the COLA calculated?
By comparing the average CPI-W for July through September this year with the same months last year, then rounding to the nearest tenth of a percent.
How much more will the average retiree receive?
About $67.90 a month at 3.5%, taking the average check from $1,940.08 to roughly $2,007.98, before Medicare deductions and taxes.
Will Medicare Part B take back part of the raise?
Likely some. The projected premium rises $6.60 to $209.50, which would trim the average net gain to about $61.30.
Do I have to apply for the COLA?
No. It is added automatically for retirement, survivor, disability, and SSI beneficiaries.
Do SSI recipients get the same COLA?
Yes, the same percentage applies to SSI, and the increase generally shows up in the January payment.
Is the COLA taxable?
It can be. If your combined income puts your benefits over the taxable thresholds, part of the larger benefit may be taxed.
Why do retirees say the COLA is not enough?
Because CPI-W tracks urban workers’ spending, not senior spending on health care and housing, and the raise is based on past prices. TSCL estimates benefits lost 13.7% of their buying power from 2016 to 2026.
What will the Social Security COLA be for 2027?
The best current estimates are 3.5% from TSCL and Mary Johnson and 3.6% from AARP, subject to the September inflation data.
What is the biggest Social Security COLA in history?
The 2023 raise of 8.7% is the largest in recent decades. The 1980s and late 1970s had higher raises, in the double digits at times.
Will Social Security checks go up in January 2027?
Yes, the new COLA is added to benefits paid in January 2027.
Why is the 2027 COLA higher than 2026?
Inflation has been running higher, with tariffs, energy prices tied to the Iran war, and AI related costs cited by analysts. The 2026 COLA was 2.8%.
How do I see my new benefit amount?
Sign in to your my Social Security account and check the message center after the announcement, or wait for the December notice.
Could Social Security payments be cut?
Benefit levels under current law are not cut by the COLA. Longer term funding shortfalls are discussed in the Trustees Report, and any changes would require action by Congress.
Conclusion
The Social Security 2027 COLA looks set to land between 3.4% and 3.6%, with 3.5% the most common forecast, which would rank sixth since 1993 and add roughly $68 to the average monthly check. The raise reflects real price pressure from tariffs, an energy shock tied to the war with Iran, and the cost of the AI build-out, so it is compensation for higher costs, not a windfall. Between a projected Part B increase and possible taxes on benefits, the net gain will be smaller than the headline. Wait for the official October 14 announcement, then check your my Social Security account for your exact amount, and budget from the net figure on your December notice.
