Your SSDI payment depends on your work history and earnings, not on how disabled you are

Social Security Disability Insurance (SSDI) calculates your monthly payment based on how much you earned during your working years—specifically, your average earnings over your highest-earning 35 years. The more you paid into Social Security through payroll taxes, the higher your SSDI payment will be. This is different from Supplemental Security Income (SSI), which is a needs-based program with a fixed federal payment amount.

Social Security uses a formula called your Primary Insurance Amount (PIA) to turn your lifetime earnings into a monthly check. The formula bends in your favor at lower income levels—meaning someone who earned $20,000 a year gets a higher percentage of their average earnings than someone who earned $100,000 a year. But the actual dollar amount you receive is always tied to what you earned, not to your medical condition.

You cannot see your exact SSDI payment amount until Social Security approves your claim. However, you can get an estimate by creating a my Social Security account online or by calling Social Security at 1-800-772-1213.

Key Takeaways

  • Your SSDI payment is based on your lifetime earnings record, calculated from your highest-earning 35 years of work.
  • The Social Security formula replaces a higher percentage of lower earnings than higher earnings, so the benefit structure favors people who earned less.
  • You can estimate your payment before you file by checking your my Social Security account or calling 1-800-772-1213.
  • Your payment amount does not change based on how severe your disability is or how much money you have in savings.
  • If you were born before 1954, you may be able to receive a higher payment based on a family member's earnings record instead of your own.

How Social Security calculates your average earnings

Social Security pulls your earnings record from the payroll taxes you paid over your entire working life. They take your highest 35 years of earnings, adjust them for inflation to today's dollars, and divide by 420 months (35 years × 12 months) to get your Average Indexed Monthly Earnings (AIME).

If you worked fewer than 35 years, Social Security counts the missing years as zero. This lowers your average. For example, if you worked 30 years, Social Security adds five years of $0 to your calculation. This is why people who took time out of the workforce—for caregiving, illness, or other reasons—often receive lower SSDI payments than people with unbroken work histories.

The inflation adjustment is important: Social Security doesn't use your actual dollar earnings from 1990. Instead, it adjusts those earnings to reflect what they would be worth today, so a year of work in 1990 counts fairly against a year of work in 2020.

The bend points formula that determines your actual payment

Once Social Security knows your AIME, they explore the bend points formula—a three-step calculation that converts your average earnings into your Primary Insurance Amount (PIA). The formula uses two numbers called bend points, which change every year.

For 2024, the bend points are $1,174 and $7,078. Here is how it works: Social Security takes 90% of your AIME up to the first bend point, then 32% of the amount between the first and second bend point, then 15% of anything above the second bend point. The three pieces add up to your PIA.

Example: If your AIME is $3,000 a month, Social Security calculates: (90% × $1,174) + (32% × [$3,000 − $1,174]) + (15% × $0) = $1,056.60 + $583.52 + $0 = $1,640.12. That would be your monthly SSDI payment before any reductions.

The bend points change each year based on national wage growth. Social Security publishes the new bend points in October for the following year. You can find the current bend points on the Social Security website or by calling 1-800-772-1213.

Reductions that lower your payment

Your SSDI payment can be reduced in specific situations. The most common is the Government Pension Offset (GPO), which applies if you receive a pension from work where you did not pay Social Security taxes—typically government employment. The GPO reduces your SSDI payment by two-thirds of your government pension amount.

Another reduction is the Windfall Elimination Provision (WEP), which also applies to people with government pensions. The WEP changes how the bend points formula works for you, usually resulting in a lower PIA. If both GPO and WEP explore to you, Social Security applies GPO first, then WEP.

If you are under full retirement age and earning income from work, Social Security reduces your payment by $1 for every $2 you earn above the annual earnings limit. For 2024, that limit is $23,400. In the year you reach full retirement age, the reduction is $1 for every $3 earned above $62,160, but only for earnings before the month you turn full retirement age.

If you receive workers' compensation or public disability benefits, your SSDI payment may be reduced so that the total does not exceed 80% of your average current earnings before you became disabled.

What happens if you worked outside the United States

Social Security counts earnings from work in other countries toward your SSDI payment, but only if you were a U.S. citizen or lawful resident at the time you earned that money. You will need to provide documentation of your foreign work history—usually tax records or statements from your employer.

If you worked in a country that has a totalization agreement with the United States, Social Security may combine your U.S. earnings with your foreign earnings to help you meet the work requirement for SSDI. Totalization agreements exist with about 30 countries, including Canada, the United Kingdom, France, Germany, and Japan. You can ask Social Security whether your country has an agreement.

How to estimate your payment before you file

The fastest way to see an estimate is to create or log into your my Social Security account at ssa.gov. Once you are logged in, click "Benefit Estimates" and select "Retirement Estimate." Even though it says retirement, the formula is the same for SSDI, so the number you see is close to what you would receive if approved for disability.

The my Social Security account shows your actual earnings record, which is the most accurate starting point for an estimate. It also shows any years where Social Security has no record of your earnings, which you can correct by contacting Social Security directly.

If you do not have an online account, you can call Social Security at 1-800-772-1213 and ask for a benefit estimate. You will need to provide your name, date of birth, and Social Security number. Social Security can mail you a statement, though it may take several weeks.

Payment amounts for family members on your record

If you are approved for SSDI, certain family members may also receive payments based on your earnings record. These include your spouse (at any age if caring for a child under 16, or at age 62 or older), your unmarried children under 19 (or 19 if still in high school), and your unmarried adult children if they became disabled before age 22.

Each family member's payment is a percentage of your PIA, usually between 50% and 75%. However, there is a family maximum: the total amount paid to you and all your family members cannot exceed 150% to 180% of your PIA. If the total would exceed the maximum, Social Security reduces each family member's payment proportionally.

Family members do not need to have worked to receive these payments. Their may be able to access is based entirely on their relationship to you and your earnings record.

Frequently Asked Questions

Can I find out my exact SSDI payment amount before I file?

No. Social Security will not calculate your exact payment until they approve your claim. However, you can get a close estimate using your my Social Security account or by calling 1-800-772-1213. The estimate uses your actual earnings record and the current bend points formula.

Does the amount of my disability affect how much SSDI I receive?

No. Your SSDI payment is based only on your work history and earnings. Two people with the same earnings record receive the same payment, regardless of whether one has a more severe disability than the other.

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

You still may receive SSDI if you meet the work requirement—generally 40 work credits earned in the 10 years before you became disabled, though the requirement is lower if you became disabled before age 31. Your payment will be lower because you have fewer years of earnings to average, but you can still may have access to.

Will my SSDI payment increase after I start receiving it?

Yes. Your payment increases each year by the Cost of Living Adjustment (COLA), which is announced in October and takes effect in January. COLA is based on inflation and varies year to year—it was 3.2% in 2024, for example.

What if I was married and my ex-spouse earned more than I did?

If you were married at least 10 years and are now divorced, unmarried, or widowed, you may be able to receive SSDI based on your ex-spouse's earnings record if it is higher than your own. You must be at least 62 years old to use an ex-spouse's record, or any age if you are caring for their child under 16.