What a 3.9% Social Security COLA in 2027 Would Add to Your Monthly Check

With the Social Security cost-of-living adjustment (COLA) for 2027 in focus, April’s 3.9% rise in the CPI-W has sharpened expectations for a similar COLA. The Senior Citizens League projects a 3.9% COLA, and if applied, the average monthly benefit—currently about $2,081—could rise by roughly $81 to around $2,162. However, a larger Medicare Part B premium next year could erode those gains if costs rise as they did this year, when Part B jumped from $185 to $202.90. Official SSA COLA announcements hinge on the September CPI-W release, with Medicare updates typically arriving in November, making the final figure uncertain.