What Your Work History Means for Social Security

Social Security tracks every job you've held and every dollar you've earned under your Social Security number. The program uses this record to calculate how much you'll receive when you retire, become disabled, or die — and whether you're may have access to to benefits at all. You don't build up "credits" that sit in an account; instead, Social Security looks at your highest-earning years to set your benefit amount.

Your work history also determines when you can claim. If you haven't worked long enough, you won't receive retirement benefits no matter your age. The same applies to disability and survivor benefits. Understanding what Social Security has on record about you — and correcting errors before you claim — can mean thousands of dollars over your lifetime.

Key Takeaways

  • Social Security requires 40 credits to receive retirement benefits; you earn one credit for every $1,730 in wages (the amount changes yearly), up to four credits per year.
  • Your benefit amount is based on your 35 highest-earning years; if you worked fewer than 35 years, zeros are counted for the missing years, which lowers your benefit.
  • You can view your complete work history and earnings record free through your my Social Security account at ssa.gov.
  • Errors in your earnings record — a missing year, a misspelled name, or wages credited to the wrong person — must be corrected within three years, three months, and 15 days of the year the wages were earned.
  • If you worked under a different name or Social Security number, you must report this to Social Security so all your earnings are combined under one record.

How Credits Work and What You Need to Retire

A credit is the unit Social Security uses to measure work history. In 2024, you earn one credit for every $1,730 you earn in wages or self-employment income. You can earn a maximum of four credits per year, regardless of how much you earn. This means you could earn $1,730 in January and have one credit for the entire year, or earn $6,920 and still have only four credits.

To receive retirement benefits, you need 40 credits total. Since you can earn four credits per year, this typically means 10 years of work. The 10 years do not have to be consecutive — if you worked five years, took time off, then worked five more years, you still have 40 credits. However, if you have only 39 credits, you receive nothing at retirement age.

The credit amount changes each year based on average wage growth. Social Security publishes the new amount in October for the following year. Self-employed workers report their net earnings on Schedule SE of their tax return; Social Security uses that figure to calculate credits.

How Your Earnings Are Used to Calculate Your Benefit

Once you have 40 credits, Social Security doesn't simply divide your total lifetime earnings by the number of years you worked. Instead, the program identifies your 35 highest-earning years and calculates an average. If you worked 40 years, the five lowest-earning years are dropped. If you worked only 30 years, Social Security counts five years of zero earnings, which significantly reduces your benefit.

Social Security adjusts your historical earnings for wage growth using a formula called indexing. This means your 1990 wages are adjusted upward to reflect what they would be worth in today's dollars, so workers from different decades are compared fairly. The program then calculates your Primary Insurance Amount (PIA) — the benefit you receive at your full retirement age.

Your full retirement age depends on your birth year. For people born in 1960 or later, it is 67. If you claim before full retirement age, your benefit is reduced. If you delay claiming past full retirement age, your benefit increases by roughly 8 percent per year until age 70.

Viewing and Correcting Your Earnings Record

You can see exactly what Social Security has recorded for you by creating a free account at ssa.gov and selecting "my Social Security." The site shows your complete earnings history year by year, the number of credits you've earned, and an estimate of your retirement benefit at different claiming ages. You can also print a Statement of Earnings, which is the official record.

If you spot an error — a year with no earnings when you know you worked, wages that seem too low, or a name spelling that doesn't match your records — you must report it to Social Security. Errors are common: a former employer may have reported your wages under the wrong name or Social Security number, or the Social Security Administration may have misread a form.

To correct an error, contact your local Social Security office or call 1-800-772-1213. You'll need to provide proof of your earnings, such as W-2 forms, tax returns, or a letter from your employer. Social Security has a deadline: you must report the error within three years, three months, and 15 days of the year the wages were earned. After that window closes, the wages cannot be added to your record.

Work History and Disability or Survivor Benefits

Retirement benefits require 40 credits, but disability and survivor benefits have different rules. To receive Social Security Disability Insurance (SSDI), you need 40 credits total, but at least 20 of those credits must have been earned in the 10 years before you became disabled. If you became disabled at age 35, you would need 20 credits earned since age 25.

Younger workers need fewer credits. If you become disabled before age 24, you need only six credits earned in the three years before disability. Between ages 24 and 31, you need credits equal to half the years since age 21, with a minimum of six.

Survivor benefits — paid to your spouse, children, or parents if you die — also depend on your work history. Generally, you need 40 credits to ensure your family receives benefits, but there are exceptions for young workers. If you die at age 28 with only 20 credits earned in the past three years, your family may still receive survivor benefits.

What Happens If You Worked Under Multiple Names or Numbers

If you changed your name due to marriage, divorce, or legal change, you should update your Social Security record. If you worked under both your old and new name, Social Security may have split your earnings between two records. You must report the name change so all your earnings are combined under one Social Security number.

In rare cases, someone may have worked under more than one Social Security number — perhaps due to an error when hired, or because they worked before receiving a number. If this happened to you, contact Social Security with documentation of all the numbers you've used and proof of your identity. Social Security can consolidate the records, but only if you report it before you claim benefits.

Bring your Social Security card, birth certificate, and a photo ID to your local Social Security office, or call 1-800-772-1213 to report a name change or multiple numbers. The correction is free and can take several weeks to process.

Work History and Government Pension Offsets

If you receive a pension from work where you did not pay Social Security taxes — such as some government jobs, teaching positions, or work outside the United States — your Social Security benefit may be reduced. This is called the Government Pension Offset (GPO) or the Windfall Elimination Provision (WEP), depending on your situation.

The GPO affects spouses and survivors. If you receive a government pension and also claim benefits as a spouse or survivor, your spousal or survivor benefit is reduced by two-thirds of your government pension. The WEP affects your own retirement or disability benefit if you worked in a job not covered by Social Security. These reductions can be substantial, so if you have a government pension, ask Social Security to estimate your benefit before you claim.

Frequently Asked Questions

Can I see my work history online?

Yes. Create a free account at ssa.gov and log into my Social Security. You'll see your earnings year by year, your credit count, and an estimate of your retirement benefit. You can print your Statement of Earnings to keep as a record.

What if I worked but Social Security has no record of my wages?

Contact Social Security with your W-2, tax return, or a letter from your employer showing the wages and the year. Social Security will investigate and add the wages if they can verify them. You have three years, three months, and 15 days from the end of the year you earned the wages to report the error.

Do I need 40 credits to get disability benefits?

Not necessarily. You need 40 credits total, but at least 20 must be earned in the 10 years before you became disabled. Younger workers need fewer credits. If you became disabled before age 24, you need only six credits earned in the three years before disability.

If I didn't work 35 years, will my benefit be very low?

Yes. Social Security uses your 35 highest-earning years to calculate your benefit. If you worked only 30 years, five years of zero earnings are included, which lowers your average and reduces your benefit. Working additional years can replace those zeros with actual earnings.

What if I worked under a different name when I was younger?

Report the name change to Social Security with proof of your identity and documentation of both names. Social Security will consolidate your earnings records so all your wages are credited to one number. This must be done before you claim benefits.