Social Security COLA Oct 14: Your Net Raise Math

The headline number arrives on Wednesday, October 14, and it will not be your number. The Bureau of Labor Statistics releases September inflation that morning and the Social Security Administration announces the 2027 cost-of-living adjustment the same day. Current estimates have narrowed to 3.4 to 3.6 percent, according to the Saving to Invest COLA tracker, with The Senior Citizens League and AARP projecting about 3.6 percent and independent analyst Mary Johnson at about 3.4 percent. I am not going to guess which one lands. I am going to show you how to turn any of them into the only figure that matters: the net dollars in your January check.

Start with your own benefit, not the average

The average retirement benefit was $2,085 a month as of June 2026, according to the same COLA tracker. Averages are useful for one thing, a worked example. Your math is identical, just with your amount in place of $2,085. Multiply your monthly benefit by the COLA percentage. At 3.4 percent, $2,085 times 0.034 is a $70.89 gross raise. At 3.5 percent it is $72.98. At 3.6 percent it is $75.06. That is the gross raise, before Medicare touches it.

Then subtract the Part B increase

If you are on Medicare and your Part B premium comes out of your Social Security check, the premium change comes out of the raise. The standard Part B premium in 2026 is $202.90 a month. The Medicare trustees project $209.50 for 2027, according to the COLA tracker summary of the trustees report. That is a $6.60 increase. Some private forecasts run higher, $216 to $219, which would take more of the raise, and the final premium is usually not set until November. So budget with the trustees figure and treat anything above it as a known risk, not a surprise.

Figure 1: Gross versus net monthly raise on a $2,085 benefit at three COLA estimates, after a $6.60 Part B increase. Source: Author calculations from Saving to Invest and Medicare trustees projection, 2026.

On the average benefit, the net raise is $64.29 at a 3.4 percent COLA, $66.38 at 3.5 percent, and $68.46 at 3.6 percent. In other words, the projected Part B increase eats about 9 percent of the raise, not the third it ate in 2026 when Part B jumped by $17.90. That is genuinely better news than last year, if the projection holds. The hold-harmless rule also still protects many beneficiaries whose premium is deducted from their check from a net cut in most cases, though it does not guarantee your full raise.

The calendar after October 14

Three dates follow the announcement. Medicare open enrollment runs October 15 through December 7, and you will be choosing a plan before the final Part B premium is known, so use $209.50 as your planning number. Your own exact new benefit amount posts to your my Social Security account in late November, with mailed notices in mid-December, according to the COLA tracker. Supplemental Security Income recipients see the adjusted payment on December 31, and retirees see the December benefit at the new rate in January 2027, net of the new premium.

My practical move is boring and it works. On October 14, do the two-line calculation with your real benefit. Write down the net figure. Then, during open enrollment, review your drug and plan costs once, because a plan change that saves $20 a month is worth more than the difference between a 3.4 and a 3.6 percent COLA. The COLA protects you from inflation on average. Your plan choice is where you protect yourself specifically.

FAQ

When is the 2027 Social Security COLA announced? On Wednesday, October 14, 2026, the same morning the Bureau of Labor Statistics releases September CPI data, according to the Social Security Administration schedule summarized by multiple trackers.

What is the current estimate for the 2027 COLA? Estimates have narrowed to 3.4 to 3.6 percent, with The Senior Citizens League and AARP at about 3.6 percent and analyst Mary Johnson at about 3.4 percent, per the Saving to Invest tracker.

How much is the average benefit and raise? The average retirement benefit was $2,085 a month as of June 2026. At 3.5 percent that is a $72.98 gross raise, or $66.38 net after a projected $6.60 Part B increase to $209.50.

When will I see my own exact new amount? Your exact amount posts to your my Social Security account in late November 2026, with mailed notices following in mid-December, and the new rate applies to the December benefit paid in January 2027.