Social Security COLA 2027: Estimates and the October 14 Announcement
The official 2027 Social Security COLA is expected on 14 October 2026. As of 20 September the published estimates range from 3.2% to 3.6% — TSCL 3.5%, AARP 3.6% — against the 2.8% COLA for 2026.
Where the estimates stand (checked 20 September 2026)
The Senior Citizens League (TSCL), which updates its forecast monthly, now puts the 2027 COLA at 3.5 percent. Its own COLA page, read on 20 September 2026, states plainly that "TSCL predicts that the COLA for 2027 will be 3.5 percent". That is a step down from the 3.6 percent this page carried previously, and TSCL's run of published estimates now reads 3.8 percent in June, 3.6 percent in July and 3.5 percent in August.[1][2]
The estimate moves with inflation data until the books close: the COLA is calculated from average CPI-W over July, August and September, compared with the same quarter a year earlier.[2]
The official announcement is expected around October 14, 2026, after the September CPI-W release, per MyFederalRetirement. The increase would apply to benefits paid from January 2027.[2]
The estimates disagree, and the reason is in the method
Treating "the estimate" as one number hides the more useful fact: the published projections differ from each other. MyFederalRetirement, in a page updated in September 2026, sets them side by side — AARP at 3.6 percent, TSCL at 3.5 percent, independent analyst Mary Johnson at 3.4 percent, and the Committee for a Responsible Federal Budget at 3.2 percent.[2]
They also moved in opposite directions after the same August report. AARP raised its estimate to 3.6 percent from 3.5 percent, while TSCL cut its own to 3.5 percent from 3.6 percent and Johnson trimmed hers to 3.4 percent from 3.7 percent. CRFB stayed roughly steady.[2]
The page gives a reason for the split rather than leaving it as noise. AARP's model layers in inflation projections from the Federal Reserve Bank of Cleveland for the two months that have not been reported yet, which is why its number can move differently from TSCL's month to month. So a reader comparing two estimates is often comparing two methods, not two readings of the same data.[2]
Two of the three months are settled; September is the one left
The COLA is computed from average CPI-W across July, August and September, against the same quarter a year earlier. As of 20 September 2026 the July and August readings are published and the September report is due on 14 October 2026, alongside the official announcement.[2]
The August report is what moved the estimates. CPI-W rose 3.5 percent over the previous twelve months, up from 3.4 percent in July, with gasoline prices up 3.9 percent for the month and 27.4 percent higher than a year earlier. MyFederalRetirement names September energy prices as the single biggest swing factor left.[2]
One month of data can still move the final figure, which is the practical reason not to treat any of the numbers above as the answer. The announced COLA applies to benefits paid from January 2027.[1][2]
What is actually known, and what is only an estimate
The distinction that gets lost in coverage is between a published figure and a projection. The 2026 COLA was 2.8 percent and took effect in January 2026 — that is settled. The 2027 figure does not exist yet; what circulates now are advocacy-group estimates.[3][4]
The Senior Citizens League projects 3.5 percent for 2027 as of 20 September 2026. Worth noting is the direction: the same group published 3.8 percent in June and 3.6 percent in July, so the estimate has been revised down as inflation data came in. The projection moved on the July Consumer Price Index figures, and AARP published its own estimate the same day.[3][4]
That volatility is the point. An estimate published in August and an estimate published in September can differ while both are honestly reported, because each incorporates one more month of data. A number seen without its date is not usable.[4]
For context: how recent COLAs compare
The Senior Citizens League places the recent adjustments in sequence — 2.5 percent implemented at the start of 2025, 2.8 percent for 2026, and a projected 3.5 percent for 2027. On that basis the group says a 3.6 percent 2027 COLA would rank 19th among COLAs since 1977, the first year the SSA calculated adjustments using the CPI-W.[3]
A scope note on this page: the Social Security Administration's own pages set out the formula, but ssa.gov could not be retrieved during verification. Rather than paraphrase a formula from memory, this page reports only what the cited third parties state in their own words and attributes each figure to the group that published it.[3][4]
Verified facts
Each fact is labelled with its evidence typeEach fact in this section carries its evidence type — either cross-checked against independent sources, or confirmed from a single authoritative record.
The 2026 cost-of-living adjustment, which took effect in January 2026, was 2.8 percent.[3][4] 2 sources · independent
The Senior Citizens League projects a 3.5 percent COLA for 2027 as of 20 September 2026, revised down from 3.8 percent in June and 3.6 percent in July.[2][3] 2 sources · independent
TSCL's own COLA page stated a 3.5 percent projection for the 2027 cost-of-living adjustment when read on 20 September 2026.[2][3] 2 sources · independent
Statements and readings
Not counted as facts — each item shows what kind of statement it isFrom here on: statements not counted as facts — single-source reports, the issuing body’s own statements, and this page’s own readings, each labeled.
The official 2027 COLA announcement is expected around October 14, 2026, after September CPI-W data; the COLA is computed from third-quarter CPI-W averages.[2] single-source ×1 · retirement outlet (single fetched source; SSA pages block automated access)
TSCL's estimate was lowered from an earlier 3.8% as inflation cooled.[2] single-source ×1 · single fetched source
The Senior Citizens League states that the COLA is announced in October each year and implemented the following January.[3] single-source ×1 · The Senior Citizens League, describing the annual schedule
The group's 3.6 percent July projection was based on the July Consumer Price Index figures; AARP published a separate estimate the same day.[4] single-source ×1 · CBS News reporting on the two advocacy groups' estimates
The Senior Citizens League notes that 1977 was the first year the SSA calculated COLAs based on the CPI-W, and that a 3.6 percent 2027 COLA would rank 19th among COLAs since then.[3] single-source ×1 · The Senior Citizens League's historical comparison
The COLA implemented at the start of 2025 was 2.5 percent, lower than the 2.8 percent that followed for 2026.[3] single-source ×1 · The Senior Citizens League's figures for prior years
The exact mechanics of the COLA formula are set out by the Social Security Administration. That primary source could not be retrieved within the scope of this check, so this page reports only what the cited third parties state in their own words.[3][4] single-source ×2 · Scope note: ssa.gov was not reachable during verification
Published 2027 COLA estimates as of September 2026 span 3.2 to 3.6 percent: AARP 3.6, TSCL 3.5, independent analyst Mary Johnson 3.4 and CRFB 3.2.[2] single-source ×1 · MyFederalRetirement, page updated September 2026, which compiles the four estimates in one table; this page did not open each organisation separately, so the spread rests on that single compilation
AARP raised its estimate while TSCL lowered its own because AARP layers Federal Reserve Bank of Cleveland inflation projections onto the two months not yet reported.[2] single-source ×1 · MyFederalRetirement's explanation of the two methodologies (single source)
Timeline
- 2026-06
TSCL estimate: 3.8%.[2]
- 2026-07
TSCL estimate: 3.6%.[2]
- 2026-08
TSCL estimate: 3.5%. AARP moves the other way, to 3.6%.[2]
- 2026-09-20
Recheck: TSCL's own page states 3.5% for 2027; published estimates span 3.2%-3.6% across four sources.[2][3]
- 2026-10-14
Official 2027 COLA announcement expected (after September CPI-W).[2]
- 2027-01
New COLA applies to benefit payments.[2]
- Model
- claude-fable-5
- Time
- 08/19/2026, 15:40
- Body characters
- 4,103
- Sources
- 4 sources adopted
- Model
- claude-fable-5 (review passed)
- Time
- 08/19/2026, 15:55
- Verdict
- Passed
Show revision history (3)
| 08/19/2026, 15:40 | First authored (claude-fable-5) | Created |
| 08/19/2026 | New document — one of the highest-recurring US benefit searches, published in the pre-announcement rising window (strategy type ③). The 3.6% estimate is sourced from TSCL itself (the estimate's primary origin) crossed with a retirement outlet; announcement timing is single-source claims because SSA/AARP/CBS all block automated access (noted). Ops should update on the actual announcement (~Oct 14). | Updated |
| 09/20/2026 | Rechecked both sources with the announcement 24 days out. TSCL now states 3.5 percent on its own page, one step below the 3.6 percent this page carried. Added the spread across four published estimates (AARP 3.6, TSCL 3.5, Johnson 3.4, CRFB 3.2) and the stated reason they diverge — AARP layers Cleveland Fed projections onto the two unreported months while TSCL uses published data. Also recorded that July and August CPI-W are settled with September due on 14 October, and gave the sources precise dates. | Updated |
Corrections
| 09/11/2026 | The body was thin at 677 characters and had not been updated for 23 days, so it was expanded. Two sources, The Senior Citizens League and CBS News, confirmed that the 2026 COLA was 2.8 percent and that the 2027 estimate had moved from the figure published a month earlier. | Applied |
Frequently asked
How much will the 2027 COLA be?
Not official yet. TSCL's running estimate is 3.6% — higher than the 2.8% received for 2026 — but the real number depends on July-September CPI-W and will be announced around October 14, 2026.[1][2]
How is the COLA calculated?
By comparing average CPI-W for July, August and September against the same three months a year earlier. That is why estimates keep shifting until the September data lands.[2]
When would I see the increase?
In benefits paid from January 2027, following the October announcement.[2]
Official links
- Official SSA — COLA information