When Americans apply for retirement benefits from Social Security, the agency uses a three-part formula to decide how much you’ll receive each month.

Kevin Dietsch

Social Security

How does the government calculate how much my monthly social security benefits will be when I retire?

Maite Knorr-Evans William Gittins

Update: Jun 12th, 2026 11:41 EDT

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The Social Security Administration sends monthly payments to almost 75.5 million Americans. The vast majority of those go to retirees. The amount they receive is based on a three-part formula that the agency uses to calculate an individual’s benefits.

Once established, every year the SSA will automatically increase the amount a beneficiary receives based on the cost-of-living-adjustment (COLA) determined by the rate of inflation in the third quarter of the current fiscal year compared to same period of the previous year.

How are Social Security payments calculated?

The SSA bases the Social Security entitlement on data gathered throughout your working life, which is formed into an earnings record. This information is then used, with a three-part process, to calculate the size of payments:

Average Indexed Monthly Earnings (AIME)

The SSA uses your 35 best-paid years to calculate your AIME, essentially a snapshot of your historical earnings. The more you earn, the higher your monthly entitlement. Currently, Social Security only taxes your income up to a maximum threshold of $184,500 in 2026. This amount is adjusted annually for inflation.

Primary Insurance Amount (PIA)

Assuming that you wait until full retirement age (67 for those born in 1960 or later) before claiming Social Security, your PIA is the amount you’ll receive each month from the SSA.

Your PIA in 2026 is comprised of:

90% of the first $1,286 of your AIME;
32% of any amount over $1,286up to $7,749;
and 15% of any amount over $7,749

Age of claim

If you decide to claim Social Security before you reach full retirement age, your monthly entitlement will decrease. This is done on a sliding scale, with up to 30% of the payment size being lost if you claim at the age of 62. Alternatively, if you delay the payment until you are 70, you can get a boost your payment amount by up to 24%.

You can use the Social Security Administration’s quick calculator to estimate what your monthly retirement benefit could be on the agency’s official website.

💡Don’t forget! You can access Social Security services online. No need to call or visit an office! See what’s available: https://t.co/V1LcBUt4rp pic.twitter.com/dkCOtbtS7W
— Social Security (@SocialSecurity) June 12, 2026

How to calculate your Social Security entitlement

The process for calculating your Social Security monthly payments can be a confusing one and picking the opportune moment to claim the benefits can be crucial for your long-term financial stability.

Fortunately, the SSA provides two easy-to-use online tools which allow you to check both the earnings history and estimate your future Social Security entitlement.

The first is your Social Security Statement, which allows anyone over the age of 18 to see the current situation. The statement can be access through a mySocialSecurity account, and lists how much you have paid in so far, your current AIME and other important financial details.

The second is the Retirement Estimator, which uses your actual Social Security earnings record to calculate what your monthly payments could be when you decide to claim. However, bear in mind that this is just an estimate and could vary if there are changes to your personal situation or the Social Security benefits program.