How much is the 2026 Social Security COLA?

Does the annual Social Security raise actually leave you better off? Less than the headline suggests, and for higher earners barely at all. The 2026 cost-of-living adjustment, the COLA, is 2.8%, which lifts every benefit starting with the January 2026 payment. Then several forces quietly claw a piece of it back before it reaches your bank account.

What the 2.8% does

The COLA is Social Security’s inflation raise, tied to a consumer price index. For 2026 it’s 2.8%, applied across the board. A $3,000 monthly benefit becomes about $3,084. The same percentage flows through to spousal and survivor benefits.

A few related figures move with inflation too. The taxable wage base, the ceiling on earnings subject to Social Security tax, rises to $184,500 for 2026. And the earnings test limits, which apply if you claim before full retirement age (67 for anyone born in 1960 or later) and keep working, climb to $24,480 a year in the years before you reach FRA and $65,160 in the year you hit it.

The Medicare bite

Here’s the first leak. Most retirees have their Medicare Part B premium pulled straight out of their Social Security check, and that premium rises most years too. For 2026 the standard Part B premium is $202.90 a month. When the premium increase swallows part of the COLA, the net raise you actually feel is smaller than 2.8%.

For higher earners it’s worse, because IRMAA surcharges stack on top of that base premium. If a good income year two years ago pushed you into a higher IRMAA tier, the premium hike can eat most or all of your COLA. The raise is real on paper and thin in practice.

The bracket creep nobody legislated

This is the part that genuinely costs affluent retirees, and it’s invisible. The thresholds that decide how much of your Social Security is taxable, $25,000 and $34,000 for singles, $32,000 and $44,000 for couples, are not indexed to inflation. They were set in 1984 and 1993 and have never moved.

So every COLA nudges your benefit up while the taxation thresholds sit frozen. Each year, a little more of your Social Security becomes taxable income, purely because the goalposts never shift. It’s a stealth tax increase that arrives with the raise itself. High earners blew past these thresholds long ago and already have up to 85% of their benefit taxed, so for them the COLA is essentially fully taxable from the first dollar.

What it means for your plan

The takeaway isn’t that the COLA is worthless. It’s inflation-protected income, and that protection is rare and valuable over a long retirement. The takeaway is that the gross number lies. Plan on the net, after the Medicare premium and after the rising tax bite.

And the frozen tax thresholds are one more argument for shrinking taxable income before it stacks up. Filling the lower brackets with Roth conversions in your 60s, before RMDs and a delayed Social Security claim pile on, is how you keep the raise from quietly turning into a tax. The COLA gives with one hand. Plan so the other hand takes less.