Social Security benefits will arguably lose buying power next year because the 2.5% COLA understates inflation.

In December, SSI recipients will receive their payments a day early – Dec. 31 – because Jan. 1 is the New Year’s Day holiday. These checks will reflect two different amounts because the 2025 Cost of Living Adjustment increase will apply to the payment made on Dec. 31.

This double SSI check is due to Dec. 1 falling on a Sunday this year. Recipients, who usually receive their checks the first of the month, will get their November payment on Nov. 1, and their SSI payments for December will be distributed on Friday, Nov. 29, according to the SSA calendar.

The annual Social Security cost-of-living adjustment, or COLA, is one of the most important features of the government program. Without those annual raises, seniors would quickly find the purchasing power of their monthly annuity checks failing to meet their needs. That might feel like the case for some even with the COLA.

Question: This is my first year on Social Security. Do I have to update any forms to get the COLA? I think this is a scam, but I thought I should check.

Still, the recent news raises a handful of questions among the retirees it impacts the most. Here are a few things you might want to know about these annual cost-of-living adjustments. The annual COLA isn't a number arbitrarily decided by the Social Security Administration.

The most direct and obvious effect of the new COLA is the increase in monthly benefits. If your monthly Social Security benefit is $1,000 this year, it will be $1,025 starting in January 2025. If it's $2,000 now, it'll be $2,050.