The 2027 Social Security COLA could be lower than expected, and the forecasts prove it: estimates have fallen in three straight monthly revisions since a 4.7% peak in June, and the newest range now runs as low as 3.2%. The Senior Citizens League cut its projection from 3.8% in July to 3.6% in August, while independent analyst Mary Johnson’s estimate slid from 4.7% in June to 3.7% in July and 3.4% by August. The Committee for a Responsible Federal Budget now projects the lowest figure of any major forecaster, 3.2%, while AARP sits at 3.5% to 3.6%. All of it remains an estimate; the Social Security Administration will not announce the official 2027 COLA until October 14, 2026, after September’s inflation data is released. We’ll be updating this article monthly.
The pattern behind the falling numbers is straightforward: cooling inflation. Each downward revision has followed a monthly Consumer Price Index report that came in milder than forecasters expected a month earlier, and the COLA formula only counts three specific months, July, August and September 2026, measured against the same three months in 2025. Two of those three months are now locked in, and neither came in as hot as the early-summer forecasts assumed. Even the lower end of the current range, however, would still mark the largest Social Security raise since 2023, and every published forecast remains above the 2.8% adjustment retirees received for 2026. Below is exactly how each forecaster’s number has moved, why the estimates keep sliding, what a lower COLA would mean for your check, and a tracker to see how close the real number is to the current range.
2027 Social Security COLA Forecast Tracker: How Estimates Have Fallen
Every major forecaster has revised its 2027 COLA projection downward at least once since early summer 2026. Tracking these changes side by side shows just how far the estimates have dropped from their initial peak.
| Forecaster | June estimate | July estimate | August/September estimate |
|---|---|---|---|
| Mary Johnson (independent analyst) | 4.7% | 3.7% | 3.4% |
| The Senior Citizens League | 3.8% | 3.8% | 3.6% |
| AARP | Not yet published | 3.6% | 3.5% |
| Committee for a Responsible Federal Budget | Not yet published | Not yet published | 3.2% |
The direction is consistent across every forecaster: down, not up. Mary Johnson’s estimate alone dropped 1.3 percentage points between June and August, from an early high of 4.7% to 3.4%, as each successive inflation report came in cooler than the last. The CRFB’s newest 3.2% figure is now the lowest published estimate from any tracked forecaster, roughly half a percentage point below the once-common 3.6% to 3.8% range that dominated headlines over the summer.
2027 COLA Range Checker: Where Your Estimate Falls
2027 COLA Range Checker
See how your own 2027 Social Security COLA guess compares to the published forecasts, and what it would mean for your monthly check.
Your numbers
Forecast range
Forecaster comparison
| Source | Estimate | Basis |
|---|
Why the 2027 COLA Estimates Keep Falling?
The COLA formula compares the average CPI-W for July, August and September 2026 against the same three months in 2025. Early-summer forecasts leaned on assumptions about how hot inflation would run through the full third quarter, and as actual monthly data arrived, it consistently came in milder than those assumptions predicted.
| Month | What the data showed | Effect on forecasts |
|---|---|---|
| June 2026 | Early estimates built on a hot spring inflation trend | Peak forecasts as high as 4.7% |
| July 2026 CPI report | Annualized inflation cooled to 3.4%, from 3.5% in June | TSCL and AARP both cut estimates; Mary Johnson’s fell from 4.7% to 3.7% |
| August 2026 CPI report | CPI-W came in at 328.481, up 3.5% year over year, still moderate | TSCL cut to 3.6%; AARP to 3.5%; CRFB introduced its lower 3.2% estimate; Mary Johnson to 3.4% |
| September 2026 CPI report (pending) | Not yet released; due October 14 | Will finalize the official COLA |
Two of the three months in the formula are now locked in, so the range of realistic outcomes has narrowed considerably compared to June, when all three months were still unknown. Only September’s reading remains genuinely uncertain, and forecasters are watching energy prices in particular, since a spike or drop there can move the final monthly reading enough to shift the COLA by a tenth of a percentage point or more.
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What a Lower COLA Would Mean for Your Social Security Check?
Even the lowest current estimate, the CRFB’s 3.2%, would still outpace the 2.8% adjustment retirees received for 2026, and every forecaster’s number remains above Social Security’s long-term average COLA of about 2.6%. But the difference between the June high and the current low is meaningful in dollar terms for the average retiree.
| COLA scenario | New average monthly benefit | Monthly increase |
|---|---|---|
| 2.8% (2026’s actual COLA, for reference) | $2,071 (already in effect) | +$56 (already received) |
| 3.2% (CRFB, current low estimate) | $2,137 | +$66 |
| 3.4% (Mary Johnson) | $2,141 | +$70 |
| 3.5% (AARP) | $2,143 | +$72 |
| 3.6% (TSCL) | $2,146 | +$75 |
| 4.7% (June’s early high estimate, for comparison) | $2,168 | +$97 |
The gap between the current low estimate (3.2%) and the once-common summer estimate (3.6%) works out to roughly $9 a month on the average benefit, or about $108 over a full year. That is a real difference for household budgeting, but it is smaller than the swings seen earlier in the forecasting cycle, when estimates moved by a full percentage point or more between individual monthly revisions.
Retirees on fixed incomes often plan household budgets around the most recent forecast they have seen in the news, which can create a mismatch if that number was published before a later downward revision. Financial counselors who work with Social Security recipients generally recommend budgeting around the lower end of the current published range, currently 3.2%, rather than an earlier, since-revised higher estimate, so that the eventual official announcement brings a pleasant surprise rather than a shortfall against an already-committed budget.
How This Year Compares to Past COLA Forecasting Cycles?
Falling forecasts are not unprecedented. Ahead of the 2026 COLA, estimates also drifted lower over the summer before settling at the eventual 2.8% figure, and the pattern repeats almost every year to some degree, since early-season estimates always carry more uncertainty than late-season ones built on two of three required months of actual data. What makes the 2027 cycle notable is the size of the swing: a drop from a 4.7% June peak to a 3.2% low by September is a larger revision than typical years see, reflecting how unusually volatile inflation readings were earlier in 2026 compared with the more stable trend that emerged over the summer.
Comparing this year to the historically large 8.7% COLA for 2023 and 5.9% COLA for 2022 also provides useful context. Those years followed a genuine, sustained inflation surge that showed up consistently across all three required months, unlike 2026’s pattern of a hot start followed by cooling data. The current forecasting swings are closer in character to a normal, moderate-inflation year in which early estimates simply overshoot before enough real data arrives to narrow the range.
Medicare Part B Could Offset Even More of the Increase
A lower COLA arrives alongside a separate cost pressure: the projected 2027 Medicare Part B premium. The 2026 Medicare Trustees Report projects the standard premium rising from $202.90 to $209.50, an increase of $6.60 a month that is deducted directly from most retirees’ Social Security checks before it reaches their bank account. At the CRFB’s 3.2% COLA estimate, a $66 gross increase would shrink to roughly $59 net of the projected Medicare premium change, further narrowing the real-world impact of a lower-than-expected COLA.
Which Forecaster Has Been Most Accurate Historically?
None of these organizations has perfect predictive accuracy, since all of them are working from the same incomplete data and similar economic models until the official CPI-W figures are published. The Senior Citizens League has published COLA estimates for over a decade and generally lands within a few tenths of a percentage point of the final figure once two of the three required months are known, which is roughly where the current forecasting cycle now stands. Mary Johnson, a former TSCL analyst who now publishes independently, uses a similar CPI-W-based model and has historically tracked closely with TSCL’s own numbers, though her estimates sometimes move a bit more aggressively month to month, as seen in her steep drop from 4.7% to 3.4% this year.
The Committee for a Responsible Federal Budget approaches the estimate somewhat differently, incorporating broader fiscal and economic forecasting models rather than focusing narrowly on recent CPI-W trends, which may explain why its current 3.2% figure sits below the more inflation-trend-focused estimates from TSCL and AARP. None of these differences make one source definitively more reliable than another; they simply reflect different modeling assumptions applied to the same incomplete underlying data.
Key Dates for the 2027 COLA Announcement
| Date | Milestone |
|---|---|
| June 2026 | Early forecasts peak as high as 4.7% |
| July 2026 | First major downward revisions follow the July CPI report |
| August 11, 2026 | July CPI-W published, showing cooling year-over-year inflation |
| September 11, 2026 | August CPI-W published at 328.481, up 3.5% year over year |
| October 14, 2026, 8:30 a.m. ET | September CPI-W scheduled for release; SSA expected to announce the official 2027 COLA the same day |
| December 2026 | Personalized COLA notices generally sent to beneficiaries |
| January 2027 | New COLA takes effect in monthly payments |
What Could Still Push the Final COLA Higher or Lower
Only September’s CPI-W reading remains unknown, and a handful of specific economic factors could still move the final number away from the current 3.2% to 3.6% range. Energy prices are the variable forecasters watch most closely in September, since gasoline and utility costs can swing month to month more sharply than other CPI-W components and disproportionately affect the index used for the COLA calculation. A sudden jump in oil prices tied to global supply disruptions could push the final reading toward the higher end of the range, while continued easing in energy costs could pull it toward or even below CRFB’s 3.2% estimate.
Housing and shelter costs, which make up a large share of the CPI-W basket, have been a steadier upward pressure throughout 2026 and are less likely to swing dramatically in a single month, making them a more predictable input than energy prices. Food price trends and any late-year tariff-related cost pass-throughs are the other factors analysts mention as wildcards heading into the September reading. Because two of the three required months are already locked in at a moderate 3.1% to 3.5% year-over-year pace, most forecasters consider a repeat of June’s 4.7% high increasingly unlikely, barring an unexpected inflation spike in September alone.
How to Apply for Social Security Before the COLA Is Announced?
You do not need to wait for the 2027 COLA announcement to apply for benefits. Your benefit calculation already accounts for cost-of-living adjustments from the year you turn 62, regardless of when you actually claim.
- Create or sign in to your my Social Security account to review your current benefit estimate.
- Decide your claiming age based on your health, other income and household needs, not on the pending COLA announcement.
- Apply online, by phone at 1-800-772-1213, or at a local field office, generally about four months before you want payments to start.
- Once approved, your benefit will automatically include whatever COLA is in effect at the time each annual adjustment takes place.
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Social Security Processing Time and Payment Schedule
Standard retirement applications with complete records typically process within a few weeks when filed online. The new COLA, once announced, applies starting with the December 2026 benefit, which most recipients receive in January 2027 under Social Security’s usual payment calendar.
| Recipient group | First payment reflecting the 2027 COLA |
|---|---|
| SSI | December 1, 2026 (or earlier if the 1st falls on a weekend or holiday) |
| Retirement, survivor and disability benefits | January 2027, on your regular Wednesday payment date |
Official Resources to Track the 2027 COLA
| Resource | Use it for | Link |
|---|---|---|
| my Social Security account | Login, registration and your personal benefit estimate | ssa.gov/myaccount |
| Cost-of-living adjustments | Official COLA announcement, expected October 14 | ssa.gov/cola |
| COLA computation | SSA’s own CPI-W data and base-quarter methodology | ssa.gov/oact/cola/latestCOLA |
| Bureau of Labor Statistics CPI | September CPI-W release, due October 14 | bls.gov/cpi |
| Apply for retirement benefits | Starting an application under current rules | ssa.gov/benefits/retirement/apply |
| 2026 Medicare Trustees Report | Projected 2027 Part B premium | cms.gov/oact/tr/2026 |
| The Senior Citizens League | Independent monthly COLA forecast updates | seniorsleague.org |
FAQs About the 2027 Social Security COLA
Why is the 2027 Social Security COLA forecast lower than expected?
Early-summer estimates as high as 4.7% assumed inflation would stay elevated through the third quarter of 2026. As actual July and August CPI data came in cooler than expected, forecasters including The Senior Citizens League, AARP and Mary Johnson revised their projections down to a range of about 3.2% to 3.6%.
What is the current range of 2027 COLA estimates?
As of late September 2026, estimates range from 3.2%, the Committee for a Responsible Federal Budget’s projection, to 3.6%, The Senior Citizens League’s estimate, with AARP at 3.5% and independent analyst Mary Johnson at 3.4%.
When will the official 2027 Social Security COLA be announced?
The Social Security Administration is expected to announce the official 2027 COLA on October 14, 2026, the same day the Bureau of Labor Statistics releases the September CPI-W inflation data needed to complete the calculation.
Will the 2027 COLA still be bigger than 2026’s raise even if it comes in low?
Yes. Every current forecast, including the lowest CRFB estimate of 3.2%, remains above the 2.8% COLA that took effect in January 2026, and above Social Security’s long-term average COLA of roughly 2.6%.
How much would a lower COLA affect my Social Security check?
On the average $2,071 retired-worker benefit, the difference between a 3.2% and a 3.6% COLA is about $9 a month, or roughly $108 over a full year, before accounting for any Medicare Part B premium increase.
Could the Medicare Part B premium offset the 2027 COLA increase?
Partly. The 2026 Medicare Trustees Report projects the standard Part B premium rising from $202.90 to $209.50, a $6.60 monthly increase that is deducted directly from most Social Security checks, reducing the net benefit of any COLA increase.
Why do Social Security COLA estimates change so often before the official announcement?
Because the COLA formula is based on actual CPI-W inflation data for July, August and September, forecasters must estimate the still-unreleased months using economic models. As real data replaces those estimates each month, projections are revised to reflect the latest actual inflation readings.
What was the highest 2027 COLA estimate so far?
The highest widely reported estimate was 4.7%, from independent analyst Mary Johnson in June 2026, based on early-summer inflation trends that later cooled, prompting Johnson to revise her estimate down to 3.7% in July and 3.4% by August.
What is the lowest 2027 COLA estimate currently published?
The Committee for a Responsible Federal Budget’s 3.2% projection is currently the lowest among major forecasters tracked as of late September 2026.
How is the Social Security COLA calculated?
The Social Security Administration averages the CPI-W for July, August and September of the current year and compares it to the same three-month average from the prior year a COLA took effect, currently 317.265 for the 2025 base period. The percentage increase, rounded to the nearest tenth, becomes the following year’s COLA.
What was the 2026 Social Security COLA?
The 2026 COLA was 2.8%, which raised the average retired-worker benefit from about $2,015 to roughly $2,071 a month starting in January 2026.
Conclusion: A Smaller Raise, But Still a Real One
The 2027 Social Security COLA could be lower than expected compared to the optimistic forecasts from earlier this summer, but every current estimate, from CRFB’s 3.2% low to TSCL’s 3.6% high, still tops the 2.8% raise retirees received for 2026. The drop reflects genuinely cooling inflation over July and August, not a change in the underlying formula or law. Use the tracker above to see where any number you encounter fits into the current range, and remember that only the September CPI-W report, due October 14, will settle the question for good. We will refresh this guide’s estimates every month, and immediately once the official figure is announced.
