What determines how much Social Security you receive each month

Your Social Security payment is based on three things: how much you earned during your working years, when you start taking benefits, and whether you have already claimed. The Social Security Administration (SSA) calculates your Primary Insurance Amount (PIA) — the payment you would receive at your full retirement age — by looking at your 35 highest-earning years and adjusting them for inflation. If you claim before your full retirement age, your payment is reduced. If you delay claiming past your full retirement age, your payment increases.

The SSA does not use your total lifetime earnings. Instead, it drops your lowest-earning years and focuses on your 35 best years. If you worked fewer than 35 years, the SSA counts the missing years as zero, which lowers your average. This is why people who took time out of the workforce — for caregiving, illness, or other reasons — often receive smaller payments than those with 35 or more years of steady work.

Your actual monthly payment also depends on your age when you first claim. You can claim as early as age 62, but your payment will be permanently reduced — roughly 30 percent less than your full retirement age amount. You can wait until age 70, and your payment will be roughly 24 percent higher than your full retirement age amount. The longer you wait between your full retirement age and age 70, the larger your monthly check becomes.

Key Takeaways

  • The SSA bases your payment on your 35 highest-earning years, adjusted for inflation, not your total lifetime earnings.
  • Claiming before your full retirement age permanently reduces your monthly payment; claiming after your full retirement age permanently increases it.
  • You can view your estimated payment amounts at different claiming ages on your Social Security statement, available through ssa.gov.
  • Spousal and survivor benefits are calculated separately and may be available to you even if you have not worked enough years to receive your own benefit.

How the SSA calculates your earnings record

The SSA maintains a record of your earnings from every year you worked and paid Social Security taxes. You can see this record on your Social Security statement, which you can create or view at ssa.gov. The statement shows your earnings year by year and tells you how much the SSA has recorded for each year.

If you spot an error — a year where you earned money but the SSA shows zero, or an amount that looks too low — you can report it. You will need a tax return, W-2, or other pay stub from that year to prove the correct amount. The SSA has a time limit for corrections: generally, you must report an error within three years, three months, and 15 days of the year the error occurred. After that window closes, the SSA usually cannot change the record.

The SSA uses your earnings record to calculate your Average Indexed Monthly Earnings (AIME). This is your average monthly income from your 35 highest-earning years, adjusted for inflation. The formula accounts for wage growth over time, so a dollar you earned in 1990 is not treated the same as a dollar you earned in 2020. The AIME is then plugged into a formula to produce your PIA.

How claiming age changes your monthly payment

Your full retirement age depends on the year you were born. For people born in 1943 or later, full retirement age ranges from 66 to 67. The SSA website has a chart showing your specific full retirement age based on your birth year.

If you claim at 62, your payment is reduced by roughly 30 percent. If you claim at 63, the reduction is roughly 25 percent. At 64, it is roughly 20 percent. At 65, it is roughly 13 percent. At your full retirement age, you receive 100 percent of your PIA. For every year you delay past your full retirement age, your payment increases by roughly 8 percent per year, up until age 70. After age 70, your payment does not increase further, so there is no financial benefit to waiting beyond that point.

These percentages are fixed by law and do not change based on how long you live or economic conditions. The trade-off is straightforward: claim early and receive a smaller check for a longer period, or claim late and receive a larger check for a shorter period. Which option results in more total money depends on how long you live, which no one can predict.

Spousal and survivor benefits based on someone else's record

If you were married for at least 10 years and are now divorced, widowed, or still married, you may be able to receive a benefit based on your ex-spouse's or spouse's earnings record. A spousal benefit is typically up to 50 percent of the worker's PIA, though the exact amount depends on your age when you claim and your own earnings record. A survivor benefit is available to widows, widowers, and dependent children of someone who has died and was insured under Social Security.

Spousal and survivor benefits have their own claiming rules and reduction factors. If you claim a spousal benefit before your full retirement age, it is reduced more steeply than your own benefit would be. Survivor benefits for children and spouses caring for children have different age requirements than retirement benefits. The SSA website has detailed information about these benefits, and you can contact the SSA directly to learn what you might receive based on someone else's record.

How work after claiming affects your payment

If you claim Social Security before your full retirement age and continue to work, the SSA will reduce your benefit if your earnings exceed a certain amount. For 2024, if you have not yet reached your full retirement age, the SSA reduces your benefit by $1 for every $2 you earn above $23,400 per year. In the year you reach your full retirement age, the limit is higher, and the reduction applies only to earnings before the month you reach full retirement age.

Once you reach your full retirement age, you can earn as much as you want with no reduction to your benefit. This is an important distinction: the earnings test applies only to people who have claimed before full retirement age. If you wait to claim until your full retirement age or later, your work income does not affect your Social Security payment.

If your benefit was reduced due to work earnings, the SSA does not straightforward subtract money from your checks. Instead, it recalculates your benefit at your full retirement age to account for the months your benefit was withheld. This recalculation, called a recomputation, can result in a higher monthly payment going forward.

Cost-of-living adjustments and how your payment changes over time

Each year, the SSA adjusts Social Security payments to account for inflation. This adjustment is called a Cost-of-Living Adjustment (COLA). The COLA is based on the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W), which measures changes in the cost of goods and services. If inflation is high, the COLA is high. If inflation is low or there is deflation, the COLA may be zero or even negative (though negative adjustments are rare and have happened only a few times in the program's history).

The COLA is announced in October and takes effect in January. It applies to all Social Security beneficiaries — retirees, disabled workers, and survivors. Your payment amount itself does not change unless you have a life event that triggers a recalculation, such as reaching full retirement age or having additional earnings added to your record. The COLA straightforward increases the dollar amount of your existing benefit.

Taxes on your Social Security benefit

Depending on your total income, a portion of your Social Security benefit may be subject to federal income tax. The SSA uses a formula based on your combined income, which includes your adjusted gross income, nontaxable interest, and half of your Social Security benefit. If your combined income exceeds certain thresholds — $25,000 for single filers or $32,000 for married couples filing jointly — up to 50 percent or 85 percent of your benefit may be taxable.

State taxes on Social Security vary. Some states do not tax Social Security at all. Others tax it the same way the federal government does. A few states have their own rules. You can find your state's rules on your state tax authority's website.

The SSA does not automatically withhold taxes from your Social Security payment. If you expect to owe taxes, you can request that the SSA withhold a flat amount from your check each month, or you can make estimated tax payments to the IRS on your own.

Frequently Asked Questions

Can I see what my Social Security payment will be before I claim?

Yes. Create an account at ssa.gov and view your Social Security statement. It shows your estimated benefit at your full retirement age and your estimated benefit if you claim at 62 or 70. These are estimates based on your current earnings record and assume you continue to work until your full retirement age. Your actual benefit may differ if your earnings change.

What if I made a mistake and claimed too early?

If you claimed within the past 12 months, you can withdraw your claim and repay the benefits you received. This restarts your claiming clock and allows you to claim again at a later date for a higher payment. After 12 months, you cannot withdraw your claim, but you can suspend your benefits at your full retirement age and let them grow until age 70.

Does my payment change if I move to another country?

Social Security benefits are generally payable anywhere in the world. However, some countries have restrictions, and the SSA may require you to report your location. Contact the SSA before moving abroad to understand any reporting requirements or payment changes that may explore to you.

How much will my benefit increase if I delay claiming past my full retirement age?

Your benefit increases by roughly 8 percent for each year you delay claiming past your full retirement age, up to age 70. For example, if your full retirement age is 67 and you wait until 70, your benefit will be roughly 24 percent higher than your full retirement age amount.

Can my Social Security payment be reduced or taken away?

Your benefit can be reduced if you claim before your full retirement age and earn above the earnings limit, or if you owe back taxes or child support. Your benefit can also be reduced if you receive a government pension from work where you did not pay Social Security taxes. This is called the Government Pension Offset or Windfall Elimination Provision, and it affects some teachers, government employees, and their families.