How Social Security calculates your monthly payment

Social Security adds up your highest 35 years of earnings, adjusts them for inflation, and divides by 420 months. That number is your Primary Insurance Amount (PIA) — the base payment you receive at your full retirement age. The actual check you get depends on when you claim: claim before full retirement age and the payment drops; claim after and it rises by about 8 percent per year.

The Social Security Administration (SSA) does this math automatically using their records. You do not calculate it yourself. But you can see the numbers they are using and spot errors before you claim, which matters because mistakes in their earnings record directly reduce your payment.

Your payment also depends on your work history. You need 40 credits to receive retirement benefits — roughly 10 years of work at any income level. Survivors and disability benefits have different credit requirements. If you do not have enough credits, you will not receive a payment based on your own work record, though you may receive a payment based on a spouse's or ex-spouse's record instead.

Key Takeaways

  • You can view your actual earnings record and estimated payment on your personal Social Security account at ssa.gov, which takes 15 minutes to set up.
  • The payment estimate assumes you claim at full retirement age; claiming earlier reduces it, claiming later increases it by roughly 8 percent per year.
  • Errors in your earnings record — missing years, wrong amounts, name changes not updated — directly lower your payment and should be corrected before you claim.
  • Your payment depends on your work history; you need 40 credits (roughly 10 years of work) to receive retirement benefits based on your own record.
  • If you have not worked 10 years, you may still receive a payment based on a current or ex-spouse's record, with different rules for each.

Creating your Social Security account to see your numbers

Go to ssa.gov/myaccount and click "Create an account." You will need an email address, a password, and a way to verify your identity — either a phone number on file with your bank, a credit card, or a mortgage or auto loan account. The verification takes a few minutes and happens immediately.

Once you are logged in, click "Earnings Record" to see every year of wages the SSA has on file for you. Check that the years and amounts match your tax returns or old pay stubs. Look especially for years you worked but do not see listed, or years with amounts that seem too low. If you spot an error, print the page and contact your local Social Security office with your tax return or W-2 from that year as proof.

Click "Retirement Estimator" to see what your payment would be at different claim ages. The tool shows three scenarios: claiming at 62 (earliest), at your full retirement age, and at 70 (latest). The numbers assume you stop working; if you plan to keep working, the estimate will be lower because SSA reduces payments for earnings over a certain amount before full retirement age.

What your full retirement age is and why it matters

Your full retirement age depends on your birth year. If you were born between 1943 and 1954, it is 66. If you were born between 1955 and 1960, it rises by two months per year of birth — so someone born in 1957 has a full retirement age of 66 and 6 months. If you were born in 1960 or later, it is 67.

Full retirement age is the age at which you receive 100 percent of your calculated benefit. Claim before that age and your payment is permanently reduced — roughly 6.7 percent per year before age 62, and smaller reductions between 62 and full retirement age. Claim after full retirement age and your payment increases by about 8 percent per year until age 70, after which it stops increasing.

This matters because the total amount you receive over your lifetime depends on how long you live. Someone who claims at 62 gets smaller checks but starts collecting sooner. Someone who claims at 70 gets larger checks but waits eight years. The "break-even" age — when the total paid out is equal — is usually around 80 to 82, but your own situation (health, family history, other income) should guide your decision.

Understanding your earnings record and correcting errors

Your earnings record is the list of wages SSA has matched to your Social Security number. It comes from your employers' tax reports and your own tax returns. Errors happen: a name change not updated, wages posted to the wrong year, self-employment income missing, or a duplicate Social Security number.

To correct an error, gather proof: your tax return, a W-2, a 1099, or a pay stub from the year in question. Call Social Security at 1-800-772-1213 (TTY 1-800-325-0778) or visit your local office. Bring the original or certified copy of your proof document. SSA will investigate and update your record if the error is confirmed. Corrections can take several months, so do this well before you plan to claim.

If you were self-employed, check that your Schedule C income appears on your record. Self-employment income is reported on your tax return but does not appear on a W-2, so it sometimes gets missed. If a year of self-employment is missing, bring your tax return and SSA will add it.

How work history affects your payment

Social Security counts your highest 35 years of earnings. If you worked fewer than 35 years, SSA counts zero for the missing years, which lowers your average. This is why people who took time out of the workforce — for caregiving, education, or unemployment — often have lower payments than people who worked continuously.

You need 40 credits to receive retirement benefits. You earn one credit for each $1,730 of wages in 2023 (the amount changes yearly). You can earn a maximum of four credits per year, so 40 credits takes a minimum of 10 years of work. Part-time work counts the same as full-time work — what matters is total annual earnings, not hours.

If you do not have 40 credits, you cannot receive retirement benefits based on your own work record. However, you may receive a payment based on a spouse's, ex-spouse's, or parent's record. These payments have their own rules and credit requirements.

Payments based on a spouse's or ex-spouse's record

If you are married or were married for at least 10 years, you may receive a payment based on your spouse's or ex-spouse's earnings record even if you did not work enough to earn your own benefit. The payment is up to 50 percent of what your spouse receives at their full retirement age.

To receive a spousal payment, your spouse must be at least 62 years old (or any age if they are already receiving benefits), and you must be at least 62. If you claim before your full retirement age, your spousal payment is reduced. You cannot claim a spousal benefit if you are still married unless your spouse is already receiving benefits.

For ex-spouses, the rules are similar but you do not need your ex's permission or knowledge. You must have been married at least 10 years, be at least 62, and be unmarried. If your ex is at least 62, you can claim even if they have not yet claimed themselves.

Survivor and disability benefits based on your record

If you become disabled before full retirement age, you may receive Social Security Disability Insurance (SSDI) based on your own work record. You need 40 credits, but the requirement is lower for younger workers — someone who becomes disabled at 24 needs only 6 credits. To receive SSDI, you must have a medical condition that prevents substantial work and is expected to last at least 12 months or result in death.

If you die, your family members may receive survivor benefits based on your record: your spouse at any age if caring for a child under 16, your spouse at 60 or older, your unmarried children under 19 (or 23 if in school), and your parents at 62 or older if you were supporting them. Each family member receives a portion of your benefit amount; the total paid to all family members cannot exceed about 150 to 180 percent of what you would have received.

To check your credits for disability or survivor benefits, log into your Social Security account and view your earnings record. The credits are listed by year. You can also call 1-800-772-1213 to ask SSA directly.

Frequently Asked Questions

Can I see my Social Security payment estimate without creating an account?

The Retirement Estimator tool requires an account. However, you can call Social Security at 1-800-772-1213 and ask a representative to mail you a paper estimate. This takes one to two weeks. Creating an account online is faster and lets you check your earnings record at any time.

What if I find an error in my earnings record after I have already claimed?

You can still correct it. Contact your local Social Security office with proof of the error. If the correction increases your benefit, SSA will recalculate your payment going forward and may pay you back pay for up to one year. Corrections take several months to process.

Does working part-time affect my Social Security payment estimate?

The estimate assumes you stop working. If you plan to keep working before full retirement age, your actual payment will be lower because SSA reduces benefits for earnings over a limit (about $22,320 in 2023; the amount changes yearly). After full retirement age, you can work any amount without reduction.

How do I know if I have enough credits for disability benefits?

Log into your Social Security account and view your earnings record, which shows credits by year. You need 40 credits total, but younger workers need fewer — someone under 24 needs only 6 credits. Call 1-800-772-1213 if you want SSA to confirm your credit count.

Can I claim based on my ex-spouse's record if they have not claimed yet?

Yes, if you were married at least 10 years, are at least 62, are unmarried, and your ex is at least 62. You do not need their permission or knowledge. Your ex does not have to have claimed yet for you to receive a payment based on their record.