The Senior Citizens League projected on May 18, 2026 that Social Security and Supplemental Security Income benefits will rise 3.9% in 2027, a significant jump from the current year's 2.8% cost-of-living adjustment. The projection, based on recent inflation data and third-quarter Consumer Price Index results, affects over 7.3 million people who receive SSI monthly, including many children and adults with disabilities.

The official 2027 COLA won't be confirmed until October 2026, when the Social Security Administration announces the adjustment based on finalized third-quarter CPI-W data. Families don't need to take any action, as the increase applies automatically to all Social Security and SSI payments starting in January 2027.

What the 3.9% Increase Means

For SSI recipients, a 3.9% increase would raise the maximum federal benefit from the current $994 per month for individuals to roughly $1,033. Couples receiving SSI would see their maximum benefit rise from $1,491 to about $1,549. Some states supplement federal SSI payments, which means families in those states would see proportional increases to their total benefit amount.

For Social Security Disability Insurance (SSDI) recipients, the average disabled worker currently receives $1,824 per month. A 3.9% increase would add approximately $71 to that monthly payment. Families receiving dependent benefits, such as children of disabled workers, would see similar percentage increases applied to their monthly amounts.

The Senior Citizens League notes that high oil prices and persistent inflation could push the final COLA even higher when calculated in October.

How COLA Is Calculated

The Social Security Administration calculates the annual cost-of-living adjustment by comparing the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) from the third quarter of the previous year to the third quarter of the current year. The CPI-W measures price changes across food, housing, medical care, transportation, and other consumer goods.

The Bureau of Labor Statistics tracks these prices and reports the data each quarter. When the third-quarter 2026 CPI-W numbers are finalized in October, the Social Security Administration will announce the official COLA percentage for 2027. If there's no increase in CPI-W, there's no COLA that year.

This mechanism exists to prevent inflation from eroding the purchasing power of benefits over time. The adjustment happens automatically, and beneficiaries don't file paperwork or request the increase.

The Purchasing Power Problem

The Senior Citizens League's projection comes with a sobering context: Social Security benefits have lost significant purchasing power over the past decade. According to the League, benefits are now worth just 86.3 cents on the dollar compared to 2016. That represents a 13.7% loss in real value.

For disability families managing medical expenses, therapy costs, specialized equipment, and daily living needs, that gap matters. A benefit that covered rent and basic expenses in 2016 may no longer stretch as far in 2027, even with annual COLA increases. The adjustments haven't kept pace with cumulative inflation, particularly in categories like healthcare and housing that disability families rely on most.

This purchasing power loss is one reason advocacy organizations continue pushing Congress to reform how COLA is calculated, arguing that the CPI-W doesn't accurately reflect spending patterns for seniors and people with disabilities.

What Families Should Know Now

You don't need to do anything to receive the COLA increase. The Social Security Administration applies the adjustment automatically to all benefit payments starting in January 2027. You'll see the new amount in your first payment of the year.

The official announcement happens in October 2026. Until then, the 3.9% projection is an estimate based on current inflation trends. The final number could be higher or lower depending on third-quarter economic data.

If you're planning your 2027 budget, use the 3.9% estimate as a rough baseline but wait for the October announcement before making firm financial commitments. The increase will appear in your January 2027 payment, not your December 2026 payment.

Why This Matters Beyond the Numbers

For families relying on SSI or SSDI as a primary income source, annual COLA announcements aren't just about a few extra dollars. They're about whether you can afford next year's rent increase, whether therapy copays stay manageable, whether the family van that needs repairs can be fixed without cutting groceries.

A 3.9% increase is larger than this year's 2.8% adjustment, but it's still modest when measured against the cumulative loss in purchasing power since 2016. The gap between what benefits cover and what disability families need continues to widen, which is why policy conversations about COLA reform, SSI asset limits, and Medicaid eligibility thresholds remain urgent.

The automatic nature of COLA is a feature of the system: families don't have to fight for an adjustment every year. But the calculation method and the resulting increases often lag behind the real costs disability families face. That's the tension at the heart of every COLA projection. The system is working as designed, but the design isn't keeping up.

The October announcement will confirm whether the 3.9% projection holds. Until then, disability families can use this estimate to think through 2027 expenses and understand what the increase means for their specific benefit amount.