What determines how much Social Security you receive

Social Security calculates your retirement payment based on three things: your earnings history, the age you start collecting, and adjustments made to your account. The Social Security Administration (SSA) looks at your 35 highest-earning years of work, adjusts those earnings for inflation, and uses a formula to arrive at your Primary Insurance Amount (PIA) — the payment you would receive at your full retirement age.

Your full retirement age depends on your birth year. For people born in 1943 or later, it ranges from 66 to 67. If you claim before that age, your monthly payment is reduced. If you delay claiming past your full retirement age, your payment increases by roughly 8 percent per year until age 70. The SSA does not recalculate your benefit after you start collecting, so the age you choose to claim is permanent.

You must have worked and paid Social Security taxes for at least 10 years (40 quarters) to receive a retirement benefit on your own work record. If you have not reached that threshold, you may be able to receive a payment based on a spouse's or ex-spouse's earnings instead, subject to different rules.

Key Takeaways

  • Your benefit is based on your 35 highest-earning years; years with no earnings count as zeros, so gaps in work history lower your payment.
  • Claiming before your full retirement age permanently reduces your monthly payment, while delaying past that age permanently increases it.
  • You need 40 quarters (roughly 10 years) of work under Social Security to receive a benefit on your own record.
  • The SSA mails you a statement showing your estimated benefits at different claiming ages, which you can also view online through your my Social Security account.
  • If you were married or divorced, you may have the option to claim on a spouse's record even if you did not work enough quarters yourself.

How the SSA calculates your Primary Insurance Amount

The SSA uses a three-step process. First, it takes your earnings from each year you worked, adjusts them for inflation using a national wage index, and creates an Average Indexed Monthly Earnings (AIME) by dividing your 35 highest-earning years by 420 months. Second, it applies a bend point formula to your AIME. This formula is progressive: it replaces a higher percentage of lower earnings and a lower percentage of higher earnings, which means lower-wage workers receive a higher replacement rate than higher-wage workers.

Third, the SSA adjusts your result for cost-of-living increases (COLA) that occur between the year you turn 62 and the year you claim. The final number is your PIA at your full retirement age. If you claim early or late, the SSA applies a percentage reduction or increase to this amount.

The bend points change each year based on the national wage index. For 2024, the bend points are $1,174 and $7,078, but these numbers shift annually. You do not need to calculate this yourself — the SSA does it and sends you the result on your statement.

What happens if you have gaps in your work history

The SSA counts your 35 highest-earning years. If you worked fewer than 35 years, the remaining years count as zeros. For example, if you worked 30 years, the SSA includes five years of zero earnings in your calculation, which lowers your AIME and your final benefit. This is why people who took time out of the workforce for caregiving, unemployment, or other reasons often see a lower payment than they might expect.

You cannot remove or replace zero-earning years after you claim. However, if you continue working after you claim, the SSA will recalculate your benefit once per year if your new earnings are high enough to replace one of your 35 counted years. This recalculation happens automatically; you do not need to request it.

How your claiming age changes your monthly payment

If you claim at your full retirement age, you receive 100 percent of your PIA. If you claim at 62 (the earliest age), your payment is reduced by roughly 30 percent if your full retirement age is 67, or 35 percent if your full retirement age is 66. The reduction is permanent — even if you live to 100, your payment never increases to what it would have been at your full retirement age.

If you delay claiming past your full retirement age, your payment increases by roughly 8 percent per year. At age 70, you receive about 124 percent of your PIA if your full retirement age is 67. After age 70, the SSA stops increasing your benefit, so there is no financial advantage to waiting longer.

The exact percentages depend on your birth year and are listed on the SSA's website and on your statement. The choice between claiming early, at full retirement age, or late is a personal decision based on your health, family history, other income sources, and how long you expect to live.

Understanding your Social Security statement

The SSA mails a statement to you once per year, usually a few months before your birthday. If you create a my Social Security account at ssa.gov, you can view your statement online anytime. The statement shows your earnings record for each year you worked, your estimated benefit at age 62, your estimated benefit at your full retirement age, and your estimated benefit at age 70.

Check your earnings record for accuracy. If the SSA has credited you with earnings you did not make, or has missed earnings you did make, you can request a correction. You have a limited time to correct errors — generally three years, three months, and 15 days from the end of the year in which the earnings were reported. If you find an error, contact the SSA directly with your W-2 forms or tax returns as proof.

The estimates on your statement assume you will continue working at your current pace until you claim. If your earnings pattern changes — for example, if you plan to retire early or work longer — your actual benefit may differ from the estimate.

How marriage, divorce, and widowhood affect your benefit

If you were married for at least 10 years and are now divorced, you may be able to claim on your ex-spouse's record even if you did not work 40 quarters yourself. Your payment would be up to 50 percent of your ex-spouse's PIA at your full retirement age, or less if you claim early. You do not need your ex-spouse's permission, and claiming on their record does not reduce their payment.

If you are currently married, you may be able to claim a spousal benefit of up to 50 percent of your spouse's PIA at your full retirement age, in addition to any benefit you earned on your own record. The SSA pays you the higher of the two amounts, not both. If you claim your spousal benefit before your full retirement age, it is reduced.

If your spouse dies, you may be able to claim a survivor benefit as a widow or widower. The amount depends on your age at the time of death and your spouse's earnings record. A widow or widower at full retirement age receives 100 percent of what the deceased spouse was receiving or would have received; at age 60, the payment is about 71.5 percent.

What to do if you think your benefit is wrong

If you disagree with the amount the SSA calculated, you can request a detailed explanation. Contact your local Social Security office or call 1-800-772-1213. The SSA will review your earnings record and the formula it used. If you believe there is an error in your earnings record, bring documentation such as W-2 forms or tax returns.

If the SSA made a calculation error, it will correct it. If your earnings record is incomplete or incorrect, you can request an adjustment. However, if the SSA calculated your benefit correctly based on your actual earnings and the law, the amount cannot be changed retroactively unless you withdraw your claim within 12 months of starting to receive benefits — a process called a withdrawal and restart. This option is available only once and only within that 12-month window.

Frequently Asked Questions

Can I see my estimated benefit before I claim?

Yes. Create a my Social Security account at ssa.gov to view your statement online, or call 1-800-772-1213 to request a mailed statement. The statement shows your estimated benefit at ages 62, your full retirement age, and 70. These are estimates based on your current earnings record and assume you continue working at your current pace.

What if I worked in another country?

Social Security credits count only work covered by the U.S. Social Security system. Work in another country does not count toward your 40 quarters unless that country has a totalization agreement with the United States. If you worked in a country with an agreement, the SSA may combine your U.S. and foreign credits. Contact the SSA to find out whether your country has an agreement.

Does my benefit change after I start claiming?

Your monthly payment amount does not change based on your age or life events after you claim, except for annual cost-of-living adjustments (COLA). However, if you continue working and your new earnings are high enough to replace one of your 35 counted years, the SSA recalculates your benefit once per year automatically.

What if I claim early and then change my mind?

You can withdraw your claim and restart your benefit within 12 months of claiming, but only once in your lifetime. You must repay all benefits you received, including any amounts withheld for taxes. After 12 months, you cannot undo your claim, though you can suspend your benefit at your full retirement age and restart it later at a higher amount.

How does working after I claim affect my payment?

If you claim before your full retirement age and continue working, the SSA withholds $1 in benefits for every $2 you earn above an annual limit (the limit changes yearly). Once you reach your full retirement age, there is no earnings limit and no withholding. If your new earnings are high enough, the SSA recalculates your benefit upward once per year.