Your monthly payment depends on your work history, not your disability

Social Security Disability Insurance (SSDI) pays you based on how much you earned before you became unable to work — not based on how severe your condition is or how much you need. The Social Security Administration calculates your payment using your lifetime earnings record, then applies a formula that accounts for inflation and the age at which you would have retired.

The average SSDI payment in 2024 is around $1,550 per month, but this number covers everyone from people who worked briefly to those with decades of high earnings. Your actual payment could be significantly higher or lower depending on what you earned and when you earned it.

Key Takeaways

  • Your SSDI payment is calculated from your actual work earnings, not from your disability diagnosis or financial need.
  • The Social Security Administration uses a formula that credits you for your highest 35 years of earnings, adjusted for inflation.
  • You can request a benefit estimate from Social Security before you file, using your online account or by calling 1-800-772-1213.
  • Your payment amount stays the same each year unless Congress changes the benefit formula, though the amount adjusts slightly each January for cost-of-living increases.
  • If you worked for a government employer that did not pay into Social Security, your SSDI payment may be reduced by a formula called the Government Pension Offset.

How Social Security calculates your payment amount

Social Security looks at your earnings record going back to age 22 (or when you first started working, if that was later). The agency counts your highest 35 years of earnings, adjusted for inflation to account for wage growth over time. If you worked fewer than 35 years, Social Security counts zeros for the missing years, which lowers your average.

Once Social Security has your average monthly earnings, it applies a benefit formula that replaces a higher percentage of lower earnings and a lower percentage of higher earnings. This is why two people with very different lifetime earnings might receive payments that are closer together than you would expect. The exact percentages change each year based on national wage trends.

The result of this formula is your Primary Insurance Amount (PIA) — the monthly payment you would receive at your full retirement age. If you are approved for SSDI before full retirement age, you receive the same PIA amount; SSDI does not reduce your payment for age the way retirement benefits do.

What affects your payment amount

Your payment is higher if you worked more years, earned more money, or worked during years when wages were higher. Conversely, your payment is lower if you had gaps in work, earned less, or worked during years when wages were lower.

If you took time out of the workforce — for caregiving, education, unemployment, or any other reason — those years count as zeros in your 35-year average. You cannot go back and change your earnings record, but Social Security does drop your lowest-earning years from the calculation, which is why working longer can sometimes raise your payment even if your recent earnings were modest.

If you are married or in a civil union, your spouse or ex-spouse may be may have access to to a payment based on your earnings record once you are approved for SSDI. This does not reduce your payment, but it does mean your family's total benefit from your work history may be substantial.

Getting an estimate before you file

You do not have to wait until you are approved to find out roughly how much you would receive. Social Security offers a benefit estimate that shows what your payment would be based on your current earnings record.

The easiest way to get an estimate is to create a my Social Security account at ssa.gov. Once you log in, you can view your earnings record and see an estimate of your SSDI payment. The estimate updates automatically as Social Security records new earnings.

If you do not have an online account or prefer to speak with someone, you can call Social Security at 1-800-772-1213 (TTY 1-800-325-0778) and ask for a benefit estimate. You will need your Social Security number and date of birth. Social Security can mail you a detailed estimate, though this takes longer than checking online.

How cost-of-living adjustments work

Once you are receiving SSDI, your payment does not stay frozen at the amount you were approved for. Each January, Social Security increases payments by a percentage called the Cost-of-Living Adjustment (COLA). This adjustment is meant to help your payment keep pace with inflation.

The COLA is the same percentage for everyone receiving SSDI — it is not based on your individual circumstances. In recent years, COLA has ranged from 0% (in years with no inflation) to 8.7% (in 2023). You do not have to do anything to receive the adjustment; it happens automatically.

Social Security announces the COLA for the following year in October. Your new payment amount takes effect in January, and you will see the increase in your first payment of that month.

Limits on how much you can earn while receiving SSDI

SSDI itself has no earnings limit — you can work and still receive your full SSDI payment. However, if you earn above a certain threshold, Social Security may determine that you are no longer unable to work and may stop your benefits.

The threshold is called Substantial Gainful Activity (SGA), and it changes each year. In 2024, SGA is $1,550 per month (or $2,590 for people who are blind). If you earn more than this amount consistently, Social Security will review your case and may conclude that your disability has improved.

There are work incentive programs — like Impairment Related Work Expenses (IRWE) and the Plan to Achieve Self-Support (PASS) — that allow you to exclude certain earnings or expenses from the SGA calculation. These programs are designed to help you test your ability to work without when ready losing benefits, but they require advance planning and approval from Social Security.

What happens if you worked for the government

If you spent part of your career working for a federal, state, or local government employer that did not withhold Social Security taxes, your SSDI payment may be reduced. This reduction is called the Government Pension Offset (GPO).

The GPO reduces your SSDI payment by two-thirds of the government pension you receive. For example, if you receive a $900 monthly government pension, the GPO would reduce your SSDI payment by $600. This can significantly lower your total monthly income, and it applies even if you worked in the private sector for many years.

Not all government pensions trigger the GPO — only those from employers that did not withhold Social Security taxes. If you are unsure whether your government pension is affected, you can ask Social Security directly or review your earnings record online.

Frequently Asked Questions

Can I find out my payment amount without filing for SSDI?

Yes. Create a my Social Security account at ssa.gov to see your benefit estimate, or call 1-800-772-1213 and ask for an estimate. The estimate is based on your actual earnings record and shows roughly what you would receive if approved.

Will my payment go up if I keep working before I file?

Possibly. Social Security uses your highest 35 years of earnings. If you have fewer than 35 years of work history, adding more years can raise your average. If you already have 35 years, a new year of high earnings might replace a lower-earning year and increase your payment.

What if I did not work for 35 years?

Social Security counts zeros for the missing years, which lowers your average monthly earnings and your payment. You cannot retroactively add work history, but your payment is still calculated fairly based on what you actually earned.

Does my payment change if I move to a different state?

No. SSDI payments are the same regardless of where you live. Some states offer additional state disability payments on top of SSDI, but your federal SSDI amount does not change based on location.

What if I was married more than once?

Each ex-spouse may be may have access to to a payment based on your earnings record if the marriage lasted at least 10 years and they have not remarried. This does not reduce your payment or the payment of your current spouse, if you have one.