Your SSDI payment is based on your lifetime earnings record, not on how disabled you are

Social Security Disability Insurance (SSDI) calculates your monthly payment using the same formula Social Security uses for retirement benefits. The amount depends on how much you earned during your working years—specifically, your average earnings over your highest-earning 35 years. Someone who worked at higher wages for many years will receive more than someone who worked part-time or earned less, even if both have the same disability.

Social Security does not pay more money for more severe disabilities. A person with a spinal cord injury and a person with arthritis who both worked the same job for the same length of time would receive the same SSDI payment. The disability itself does not change the dollar amount—only your work history does.

The actual payment you receive is a percentage of what you would have gotten if you had waited until your full retirement age to claim Social Security retirement benefits. For SSDI, that percentage is typically 80 percent of your primary insurance amount, though the exact figure can vary slightly based on when you were born.

Key Takeaways

  • Your SSDI payment comes from your own Social Security account, based on what you paid into the system through payroll taxes during your working years.
  • The amount has nothing to do with how severe your disability is—two people with different disabilities can receive the same payment if they earned the same amount over their careers.
  • You can contact Social Security directly to see an estimate of your payment before you file, using your personal my Social Security account online.
  • Your payment stays roughly the same each year, adjusted only for cost-of-living increases that Social Security announces in October.

What Social Security knows about your earnings

Social Security has a record of every year you worked and paid payroll taxes. When you create a my Social Security account online at ssa.gov, you can see your earnings history going back decades. This is the actual number Social Security will use to calculate your SSDI payment.

If you spot errors in that record—a year where you earned money but it does not show up, or a year where the amount is wrong—you can correct it. You will need tax records or W-2 forms from that year. Social Security has a important date for corrections: generally, you must report an error within three years, three months, and 15 days of the year the earnings should have been recorded. If you find an error, call Social Security at 1-800-772-1213 to report it before you file for SSDI.

If you were self-employed, Social Security records your net earnings from self-employment based on what you reported on your tax returns. Gaps in your record—years you did not work or did not earn much—count as zeros in the calculation. That is why someone who took time out of the workforce may receive a lower SSDI payment than someone who worked continuously.

The range of SSDI payments in practice

SSDI payments vary widely because they are tied to individual work histories. In 2024, the average SSDI payment was around $1,550 per month, but that is an average across millions of people with very different careers. Some people receive $600 a month; others receive $3,800 or more. The only way to know what you would receive is to look at your own earnings record.

Your payment will be lower if you had periods without work, worked part-time for years, or earned less than average wages. It will be higher if you worked full-time at above-average wages for most of your adult life. Someone who worked 40 years at a professional salary will receive substantially more than someone who worked 20 years at minimum wage, even if both became disabled on the same day.

Once you start receiving SSDI, your payment amount does not change based on your medical condition getting better or worse. It only changes when Social Security announces a cost-of-living adjustment, which happens once a year in October. That adjustment is the same percentage for everyone on SSDI.

How to get an estimate before you file

You do not have to wait until you file for SSDI to know roughly what you would receive. If you have a my Social Security account, you can view your earnings record and see an estimate of your future benefits. That estimate is based on your actual work history and is reasonably accurate.

To create an account, go to ssa.gov and select "Create an account" under my Social Security. You will need an email address and a phone number. Once you are logged in, select "Benefit Estimates" to see what your SSDI payment would be. The estimate assumes you became disabled today; if you file later, the amount might be slightly different because you may have earned more money in the years between now and then.

If you do not want to create an online account, you can call Social Security at 1-800-772-1213 and ask for a benefit estimate over the phone. You will need your Social Security number and basic information about your work history. The representative can give you a rough figure, though it will be less precise than the online estimate.

What happens if you worked outside the United States

If you worked in another country and paid into that country's social security system, you may be able to combine your work credits from both countries to may have access to for SSDI or to increase your payment amount. This is possible through totalization agreements that the United States has with about 30 countries, including Canada, the United Kingdom, France, Germany, and others.

To explore whether your foreign work history helps, contact Social Security and ask about totalization. You will need documentation of your work and contributions in the other country. The process can take several months, but it sometimes results in a higher payment or in becoming newly may be able to access for benefits.

SSDI payments and other income or benefits

Your SSDI payment is not reduced if you have savings, own a home, or receive money from other sources. Social Security does not have an asset limit for SSDI the way it does for Supplemental Security Income (SSI), which is a different program for people with low income and few resources.

However, if you work while receiving SSDI, your benefits may be affected. During the first nine months you work (called the trial work period), you can earn any amount without losing benefits. After that, if you earn more than $1,550 per month (in 2024; this amount changes yearly), Social Security may reduce or stop your benefits. The exact rules depend on how much you earn and for how long. If you are thinking about working, contact Social Security before you start to understand how it will affect your payment.

Frequently Asked Questions

Can I find out my SSDI payment amount without filing?

Yes. Log into your my Social Security account at ssa.gov and view your benefit estimate, or call 1-800-772-1213 and ask for an estimate over the phone. Both will show you roughly what you would receive based on your current earnings record.

Does my SSDI payment go up if my disability gets worse?

No. Your payment is based on your work history, not on how severe your disability is. The amount stays the same unless Social Security announces a cost-of-living adjustment, which happens once a year.

What if I did not work very long before I became disabled?

Your payment will be lower because it is calculated using your average earnings over your highest-earning years. If you only worked a few years, those years are averaged with zeros for the years you did not work, which reduces the total. You still may be able to receive SSDI if you have enough work credits.

Will my SSDI payment change after I start receiving it?

Your payment will increase slightly each October when Social Security announces a cost-of-living adjustment. This is the same percentage increase for everyone on SSDI. The amount will not change based on your medical condition or other circumstances.

What if there is an error in my earnings record?

Contact Social Security at 1-800-772-1213 with your tax records or W-2 forms showing the correct amount. You generally have three years, three months, and 15 days from the end of the year the earnings should have been recorded to report an error. Correcting it before you file can increase your SSDI payment.