Your benefit is based on your highest 35 years of earnings, adjusted for inflation

Social Security does not pay everyone the same amount. The program calculates your benefit using your actual work history — specifically, your highest 35 years of earnings. The Social Security Administration (SSA) adjusts those earnings for inflation so that money from 1985 is counted fairly against money from 2020. If you worked fewer than 35 years, the missing years count as zero, which lowers your average.

The SSA then applies a formula to that average to arrive at your Primary Insurance Amount (PIA) — the benefit you receive at your full retirement age. The formula is progressive: it replaces a higher percentage of low earnings than high earnings. This means two workers with very different career incomes will not see a proportional difference in their benefits.

You can see your actual earnings record and an estimate of your benefit by creating an account at ssa.gov and viewing your Social Security Statement. The statement shows what you earned each year, how many work credits you have, and a projection of what you might receive at different ages.

Key Takeaways

  • Your benefit amount depends on your 35 highest-earning years; years with no earnings count as zero and reduce your average.
  • You can claim as early as age 62, but your monthly payment will be permanently reduced — typically 30 percent less than at full retirement age.
  • Waiting until age 70 increases your monthly benefit by about 8 percent per year beyond your full retirement age, up to age 70.
  • Your full retirement age is between 66 and 67, depending on your birth year; the SSA website shows your specific age.
  • You can view your earnings record and benefit estimate for free at ssa.gov by creating a my Social Security account.

How the formula turns your earnings into a monthly payment

The SSA uses a three-step process. First, it takes your 35 highest-earning years and adjusts each year's earnings for inflation using a national wage index. This puts all years on a level playing field. Second, it divides the total by 420 months (35 years × 12 months) to get your Average Indexed Monthly Earnings (AIME). Third, it applies a bend-point formula to your AIME.

The bend-point formula works like this: you receive 90 percent of the first portion of your AIME, 32 percent of the next portion, and 15 percent of anything above that. The dollar amounts that define each portion change yearly. For 2024, the first bend point is $1,174 and the second is $7,078. If your AIME is $3,000, you would receive (90% × $1,174) + (32% × $1,826) + (15% × $0) = $1,583 per month at full retirement age.

The result is your Primary Insurance Amount. This is the benefit you receive if you claim at your full retirement age. If you claim earlier or later, the SSA applies a different percentage to this amount.

Claiming early reduces your benefit permanently

You can claim Social Security as early as age 62, but doing so means a permanent reduction to your monthly payment. The reduction is roughly 6.7 percent per year before your full retirement age, though the exact percentage depends on your birth year. If your full retirement age is 67 and you claim at 62, you lose about five years of increases, which typically means a 30 percent reduction.

This reduction stays in place for life. If your Primary Insurance Amount at age 67 would be $2,000 per month, claiming at 62 might give you $1,400 per month — and you will receive $1,400 (adjusted for cost-of-living increases) for as long as you live. You do not get a raise to the full amount when you reach 67.

Early claiming makes sense for some people: those with serious health conditions, those who need the money now, or those who have already done the math and determined they will not live long enough to break even by waiting. For others, it is a costly choice. The SSA website has a break-even calculator that can help you think through the trade-off.

Waiting until 70 increases your benefit significantly

For every year you delay claiming past your full retirement age, your benefit grows by about 8 percent per year, up until age 70. After 70, there is no further increase. If your full retirement age is 67 and your Primary Insurance Amount is $2,000, waiting until 70 would give you roughly $2,480 per month for life.

Delayed claiming is a bet on longevity. You receive less total money in the early years, but your monthly payment is much higher if you live into your 80s or 90s. The break-even point — where the total money received by waiting equals the total by claiming early — is typically around age 80 or 81, depending on your specific numbers.

Married couples can use delayed claiming strategically. The higher-earning spouse can wait until 70 to maximize their own benefit, while the lower-earning spouse claims earlier. This approach is no longer available to new retirees under current rules, but it remains an option for those already receiving benefits or born before January 2, 1954.

Your full retirement age depends on when you were born

Full retirement age is not 65 for everyone. The SSA gradually raised it starting in 1983. If you were born in 1943 or earlier, your full retirement age is 65. If you were born between 1943 and 1960, it increases by two months for each birth year. If you were born in 1960 or later, your full retirement age is 67.

You can find your exact full retirement age on the SSA website or in your Social Security Statement. This age matters because it is the point at which you receive your full Primary Insurance Amount with no reduction. Claiming before this age means a permanent cut; claiming after means a permanent increase.

Work history gaps and how they affect your benefit

The SSA counts your highest 35 years of earnings. If you worked only 30 years, the five missing years are treated as zero-earning years. This pulls down your average and reduces your benefit. If you worked 40 years, the SSA ignores your five lowest-earning years and uses only the highest 35.

Years with very low earnings — such as years when you were in school, caring for children, or working part-time — still count as part of your 35 years if they are among your highest 35. You cannot drop them unless you have higher-earning years to replace them. This is why people who took time out of the workforce for caregiving often receive lower benefits than those with continuous full-time work.

If you continue working after you claim Social Security, your benefit may increase. The SSA recalculates your benefit each year, dropping your lowest-earning year and adding your most recent year if it is higher. This can result in a modest increase to your monthly payment, though the boost is usually small unless you earned significantly more in recent years than earlier in your career.

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

Your monthly benefit is not fixed. Each year, the SSA adjusts benefits for inflation using the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W). This adjustment is called a Cost-of-Living Adjustment (COLA). In years when inflation is high, the COLA is higher; in years with low inflation, the COLA is smaller or zero.

The COLA is applied to all benefits in December, and the new amount appears in your January payment. For example, if you receive $2,000 per month and the COLA is 3.2 percent, your new benefit becomes $2,064 per month. The COLA applies whether you claimed at 62 or 70 — everyone receives the same percentage increase.

You can see historical COLA amounts and projections on the SSA website. The COLA does not keep pace with all inflation — particularly healthcare inflation, which often outpaces the general rate — but it does provide some protection against the eroding value of your fixed income.

Frequently Asked Questions

Does working while receiving Social Security reduce my benefit?

Only if you have not yet reached your full retirement age. If you claim before full retirement age and earn more than $23,400 per year (2024 figure), the SSA withholds $1 of your benefit for every $2 you earn above that amount. In the year you reach full retirement age, the limit is higher and applies only to earnings before the month you reach that age. Once you reach full retirement age, you can earn any amount without reduction.

What happens to my benefit if I was married or divorced?

You may be able to receive a benefit based on your spouse's or ex-spouse's earnings record if that benefit is higher than your own. You must have been married at least 10 years to claim on an ex-spouse's record. The spousal benefit is typically 32 to 50 percent of the primary earner's benefit, depending on your age when you claim. Rules for married couples changed in 2015, so your options depend on your birth year.

Can I change my mind after I claim Social Security?

You have limited options. If you claimed within the past 12 months, you can withdraw your application and repay all benefits received; this resets your claim and allows you to claim again later at a higher amount. After 12 months, you cannot withdraw. You can request a one-time voluntary suspension if you have reached full retirement age, which pauses your benefit and allows it to grow, but this is rarely used.

How do I know if my earnings record is correct?

Review your Social Security Statement at ssa.gov. It shows your earnings for each year you worked. If you spot an error — such as earnings that were not reported or were reported under the wrong name — contact the SSA with your W-2 or tax return as proof. Corrections must usually be made within three years, three months, and 15 days of the year the earnings were reported.

What if I never worked enough to receive Social Security?

You need 40 work credits to receive retirement benefits; most people earn four credits per year, so 40 credits typically requires 10 years of work. If you have fewer than 40 credits, you do not receive a benefit based on your own earnings. You may still receive a spousal or survivor benefit if you are married or widowed and meet other requirements.