COLA 2027 Projection: What SSDI and SSI Recipients Should Expect Next January

Published August 11, 2026 by Anthony Albert, Benefits Research Director at Disability Exchange

The Social Security cost-of-living adjustment (COLA) for 2027 will be announced by SSA in October 2026. But you do not have to wait until then to know roughly what it will be. The formula is public, the inflation data is already available through July 2026, and current projections point to a COLA in the 2.4 to 2.9 percent range.

Here is the full breakdown. How the number is calculated, what the SSA Trustees Report projects, how Medicare Part B interacts with your net check, and what specific SSDI, SSI, DAC, and widow benefit amounts will look like in January 2027 under three scenarios.

How SSA calculates COLA

Under 42 USC 415(i), SSA calculates COLA using the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W), published monthly by the Bureau of Labor Statistics.

The formula is straightforward:

Q3 means July, August, and September. SSA averages the three monthly CPI-W numbers, compares that average to the same three-month average from the year of the last COLA, and the percentage change becomes the COLA.

The Q3 2025 CPI-W average was 315.301. For 2027, SSA will compare Q3 2026 CPI-W to that 315.301 baseline.

2026 CPI-W data through July

BLS-reported CPI-W monthly figures for 2026:

• January 2026: 316.842
• February 2026: 317.415
• March 2026: 318.201
• April 2026: 319.033
• May 2026: 320.128
• June 2026: 321.055
• July 2026: 322.194

The August and September 2026 numbers will be released in mid-September and mid-October. The final COLA announcement typically comes the same day as the September CPI release, around October 11.

Three projection scenarios for COLA 2027

Scenario 1: Continued moderate inflation (base case)

If CPI-W for August and September 2026 comes in around 322.8 and 323.5, the Q3 2026 average would be approximately 322.83. Compared to Q3 2025 average of 315.301, that produces a COLA of about 2.4 percent.

Scenario 2: Accelerating inflation

If August and September 2026 CPI-W accelerates to 324.5 and 325.8 (possible with fall energy price movements or supply chain disruption), Q3 2026 average would be about 324.16. That produces a COLA of about 2.8 percent.

Scenario 3: Slowing inflation

If August and September 2026 CPI-W flattens to 322.1 and 322.4 (possible with stable energy and food prices), Q3 2026 average would be about 322.23. That produces a COLA of about 2.2 percent.

The July 2026 SSA Trustees Report intermediate assumption baselines to a 2.6 percent COLA for 2027 under the intermediate economic scenario. That aligns with our base case projection.

How COLA flows to SSDI benefits

The COLA percentage applies to your Primary Insurance Amount (PIA) and to your monthly benefit. If your 2026 SSDI benefit is 1,976 dollars (the estimated 2026 average SSDI benefit), a 2.6 percent COLA would produce a 2027 monthly benefit of approximately 2,027 dollars. That is a 51 dollar per month increase.

The exact amount depends on your earnings history and starting PIA. High-earners at the SSDI max benefit see larger dollar increases. In 2026, the SSDI max benefit is 4,120 dollars. A 2.6 percent COLA would push the 2027 max to about 4,227 dollars.

SSDI dependent and family benefits

Family maximum benefits (spouse plus children benefits combined) are also adjusted by COLA. The family max is capped at 150 to 188 percent of your PIA under 20 CFR 404.403. Each dependent's benefit scales proportionally.

How COLA flows to SSI

SSI is set by federal statute at the Federal Benefit Rate (FBR). The FBR is adjusted annually by the same COLA percentage. 2026 FBR amounts:

• Individual FBR: 967 dollars per month
• Couple FBR: 1,450 dollars per month
• Essential person increment: 484 dollars per month

Under our base case 2.6 percent COLA projection, 2027 FBR amounts would be:

• Individual FBR 2027: approximately 992 dollars per month
• Couple FBR 2027: approximately 1,488 dollars per month
• Essential person increment 2027: approximately 497 dollars per month

State supplementary payments (SSP) are added on top of the FBR in most states. States set their own SSP amounts. Some states like California adjust SSP by state formula; other states leave it unchanged year-over-year.

How COLA flows to Disabled Adult Child (DAC) benefits

DAC benefits are calculated as 50 percent of the parent's PIA during the parent's life or 75 percent after the parent's death (subject to family maximum). The COLA adjusts both the parent's PIA and the DAC benefit.

A DAC receiving 1,200 dollars monthly in 2026 would see approximately 1,231 dollars in 2027 under our base case. See our full DAC benefits article for the complete DAC calculation framework.

How COLA flows to widow and widower benefits

Disabled widow(er)s under 20 CFR 404.335 receive 71.5 percent of the deceased spouse's PIA if claimed at age 50 to 59, or full PIA if claimed at 60 or older. COLA adjusts both the underlying PIA and the widow(er) benefit.

Medicare Part B hold-harmless interaction

Here is where it gets tricky. The COLA percentage is not always what shows up in your bank account. Medicare Part B premiums are typically deducted directly from Social Security benefits, and Medicare Part B premium changes can offset part of your COLA.

How hold-harmless protects most beneficiaries

Under 42 USC 1395r(f), the hold-harmless provision limits how much your Medicare Part B premium can increase. Specifically, the increase in your Part B premium cannot exceed your dollar COLA increase. This applies to about 70 percent of Medicare Part B enrollees who have Part B premiums deducted from Social Security.

Who is not protected by hold-harmless

• New Medicare enrollees in the current year
• Beneficiaries who do not have Part B premiums deducted from Social Security
• High-income beneficiaries subject to Income-Related Monthly Adjustment Amounts (IRMAA)
• Beneficiaries with Medicaid paying their Part B premium

2027 Part B premium projection

The Medicare Trustees Report projects the 2027 Part B standard premium at approximately 205.30 dollars, up from 197.90 dollars in 2026. That is a 7.40 dollar monthly increase.

For a hold-harmless-protected beneficiary with a 51 dollar SSDI COLA increase, the 7.40 dollar Part B premium bump leaves a net check increase of about 43.60 dollars per month. For someone at the SSDI max seeing a 107 dollar COLA increase, the same Part B bump nets to 99.60 dollars additional.

Substantial Gainful Activity (SGA) threshold 2027

The SGA thresholds are indexed annually by the National Average Wage Index, not by CPI-W. They change based on wage growth rather than inflation. 2026 SGA amounts:

• Non-blind SGA: 1,620 dollars per month
• Blind SGA: 2,700 dollars per month
• Trial Work Period service month: 1,160 dollars per month

2027 SGA amounts will be announced with the COLA in October. Based on Q3 2025 to Q3 2026 wage growth projections in the Trustees Report:

• Non-blind SGA 2027 projection: approximately 1,680 dollars
• Blind SGA 2027 projection: approximately 2,800 dollars
• TWP service month 2027 projection: approximately 1,200 dollars

Section 1619(b) state threshold updates

State charged earnings thresholds under Section 1619(b) are recalculated annually based on state Medicaid expenditure data. Thresholds typically increase 2 to 5 percent year-over-year. See our full Section 1619(b) state thresholds article for the 2026 amounts. 2027 thresholds will be released in POMS SI 02302.200 in January.

Social Security tax cap 2027

The Social Security tax cap (maximum earnings subject to Social Security payroll tax) is indexed to wage growth like SGA. The 2026 cap is 179,700 dollars. Trustees Report projections put the 2027 cap at approximately 187,200 dollars. Above the cap, no Social Security tax is withheld, though Medicare tax continues on all earnings.

Timing of the 2027 COLA

SSA announces the COLA in mid-October 2026, typically same day as the BLS September CPI release. The COLA takes effect for December 2026 payments (received in January 2027 for most beneficiaries). SSDI recipients receive their December check on the second, third, or fourth Wednesday of January based on birth date. SSI recipients receive the first COLA-adjusted payment on December 31, 2026 (because January 1 is a federal holiday).

What to do to prepare

• Review your 2026 benefit amount statement in my Social Security. Compare to the projected 2027 amount above.
• Check your Medicare Part B premium status. If you are on IRMAA, hold-harmless does not apply.
• If you receive SSI, review your state supplementary payment (SSP) amount. Some states adjust SSP; some do not.
• If you are working, review your projected earnings against the 2027 SGA and TWP thresholds.
• Update your budget for the actual net check amount, not the gross COLA percentage.

State-specific 2027 SSI totals

Many states add state supplementary payments to the federal SSI benefit. 2027 combined federal + state SSI amounts will vary. See California (adds significant SSP), New York (adds SSP), Massachusetts (adds SSP), and Texas, Florida, Georgia (federal SSI only, no state supplement).

Historical COLA data for context

The 2027 projection makes more sense when you see the trend. Recent COLA percentages:

• 2020: 1.6 percent
• 2021: 1.3 percent
• 2022: 5.9 percent
• 2023: 8.7 percent (largest since 1981)
• 2024: 3.2 percent
• 2025: 2.5 percent
• 2026: 2.8 percent
• 2027 projected: 2.4 to 2.6 percent

The 2023 spike reflected pandemic-era inflation running through Q3 2022 CPI-W. Since then, COLA has moderated back toward the long-run average of about 2.6 percent per year over the past 30 years.

How COLA affects back pay calculations

If your SSDI application was filed in 2024 and you get approved in 2027, your back pay covers the period from your established onset date (minus the 5-month waiting period for SSDI) through the current month. Each month of back pay is calculated at the PIA in effect that month. COLA increases apply prospectively month by month.

Example: You are approved in February 2027 with a back pay period starting July 2025. The July 2025 through December 2025 months are paid at the 2025 PIA. January 2026 through December 2026 are paid at the 2026 PIA (2.8 percent higher). January 2027 forward is paid at the projected 2027 PIA (approximately 2.6 percent higher again). That compounds.

Windfall Elimination Provision (WEP) and Government Pension Offset (GPO) adjustments

If you are subject to WEP or GPO because you have a pension from work not covered by Social Security, the offset amounts are also adjusted by COLA. The WEP guarantee provision (which limits WEP reduction to no more than half of your non-covered pension) is not directly indexed but scales through the underlying PIA adjustment.

The 2026 WEP maximum monthly reduction is 631 dollars. Under a 2.6 percent COLA, the 2027 WEP maximum reduction would rise to approximately 647 dollars.

Retirement earnings test and COLA

The retirement earnings test applies to Social Security retirement claimants under Full Retirement Age (FRA) who continue to work. The earnings test does not apply to SSDI recipients but can affect DAC benefits and widow(er) benefits.

2026 earnings test thresholds:

• Under FRA all year: 23,400 dollars annual limit
• Year of reaching FRA: 62,160 dollars annual limit (only earnings before the FRA month count)

Projected 2027 thresholds under intermediate wage growth:

• Under FRA all year: approximately 24,270 dollars
• Year of reaching FRA: approximately 64,470 dollars

Interaction with 2027 tax withholding elections

SSDI benefits are potentially taxable under 26 USC 86. If your combined income (adjusted gross income plus half of Social Security benefits plus tax-exempt interest) exceeds 25,000 dollars single or 32,000 dollars married filing jointly, up to 50 percent of benefits become taxable. Above 34,000 single or 44,000 married, up to 85 percent becomes taxable.

These combined income thresholds are not indexed to inflation. They have not changed since 1993. As COLA raises your gross Social Security benefit each year, more of your check may fall into the taxable range over time. Consider whether to elect voluntary tax withholding on Form W-4V. Options are 7, 10, 12, or 22 percent withholding.

SSI resource limits do not adjust with COLA

The 2,000 dollar single and 3,000 dollar married SSI resource limits have not changed since 1989. They are not indexed to inflation. That is why ABLE accounts under 26 USC 529A are so important for SSI recipients who want to save any part of a COLA increase without losing eligibility.

What to expect on your December notice

SSA sends a personalized Annual Cost-of-Living Adjustment notice in early December. Your notice will show your exact 2027 monthly benefit, the exact Part B premium being deducted, any state supplementary payment, and the net check amount. Keep this notice with your tax records because it also shows the calendar year 2026 benefit total needed for your tax return.

You can also view the notice in my Social Security under Message Center. Digital notices arrive the same day the paper notice mails. If you have not enrolled in electronic notices, do it before December to see the 2027 amount as soon as it is available.

Impact on ABLE account contribution limits

ABLE account annual contribution limits are indexed to the federal gift tax annual exclusion, not directly to Social Security COLA. 2026 ABLE limit is 18,000 dollars. The 2027 ABLE limit will be announced by IRS in late 2026 and typically rises in 1,000 dollar increments when inflation warrants. Projected 2027 ABLE limit is 19,000 dollars.

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