SSDI and SSI Pay Different Amounts Based on Your Work History
Social Security Disability Insurance (SSDI) and Supplemental Security Income (SSI) are two separate programs that pay different amounts. SSDI pays based on how much you earned before you became unable to work. SSI pays a flat federal amount to people with very low income and resources, regardless of work history. Neither program pays a percentage of your former salary — both pay a fixed monthly dollar amount that changes each year.
The amount you receive depends entirely on which program you may have access to for, not on the severity of your medical condition. Two people with the same diagnosis can receive very different payments if one has a strong work history and the other does not.
Key Takeaways
- SSDI payments are based on your earnings record before you became unable to work, not on a percentage of your former income.
- SSI pays a federal base amount that was $943 per month in 2024, though your state may add money on top of that.
- SSDI amounts range widely depending on your age when you started working and how much you earned, with an average around $1,550 per month in 2024.
- Both programs adjust their payment amounts each January based on cost-of-living increases, so your monthly check changes year to year.
- You can contact Social Security directly to find out your specific payment amount before you are approved.
How SSDI Calculates Your Monthly Payment
SSDI looks at your Primary Insurance Amount (PIA), which is a number Social Security calculates from your entire work history. The calculation takes your highest 35 years of earnings, adjusts them for inflation, and then applies a formula that weights early earnings less heavily than recent ones. The result is a monthly amount that represents roughly 40 percent of what you earned on average, though this varies significantly based on your specific earnings pattern.
If you earned very little before you became unable to work, your SSDI payment will be low. If you earned a high salary for many years, your payment will be higher. Social Security has a maximum SSDI payment amount that changes each year — in 2024, the highest individual SSDI payment was $3,822 per month, though most people receive less.
You do not have to wait until you are approved to learn what your payment would be. You can create a my Social Security account online at ssa.gov, log in, and view your estimated benefit amount. This estimate is based on your actual earnings record and updates as you add more work history.
How SSI Calculates Your Monthly Payment
SSI uses a completely different method. The federal government sets a base monthly amount each year. In 2024, the federal SSI payment for an individual was $943 per month. If you have no other income and own fewer than $2,000 in countable resources, you receive the full federal amount. Many states add their own money on top of the federal payment — the total can range from $943 to over $1,400 per month depending on where you live.
SSI does not look at your work history at all. It only counts your current income and resources. If you receive other money — from a job, from family members, from another benefit program — SSI reduces your payment dollar-for-dollar, with some exceptions. For example, the first $65 of monthly earnings from work does not count against SSI, and neither does the first $20 of any other income.
Your state's SSI payment amount is fixed by law. You can find your state's current SSI rate on the Social Security website or by calling your local Social Security office.
What Happens to Your Payment After You Are Approved
Once you are approved for either SSDI or SSI, your payment amount does not change until the following January, when Social Security adjusts all payments for cost-of-living. This adjustment, called a COLA (Cost-of-Living Adjustment), is the same percentage for everyone in the same program. In recent years, COLAs have ranged from 1.3 percent to 8.7 percent, though the exact amount varies based on inflation.
If you are receiving SSDI and you return to work, your payment does not stop when ready. Social Security has a trial work period that lasts nine months, during which you can earn any amount and still receive your full SSDI payment. After the trial work period ends, if your earnings are high enough, your payment will reduce or stop, but you remain insured and can restart payments if your earnings drop again.
If you are receiving SSI and your income or resources change, you must report the change to Social Security. Your payment will adjust based on the new information, usually starting the following month.
Comparing SSDI and SSI Payment Amounts
| Program | Payment Based On | Typical Range (2024) | Maximum Individual Payment (2024) |
|---|---|---|---|
| SSDI | Your work history and earnings | $600–$3,000+ per month | $3,822 per month |
| SSI | Federal base rate plus state supplement | $943–$1,400+ per month | Varies by state |
SSDI payments tend to be higher for people who worked steadily at decent wages before they became unable to work. SSI payments are lower but available to people with little or no work history. Some people receive both programs at the same time — this is called concurrent receipt. When this happens, Social Security pays SSDI first, and SSI makes up the difference if the SSDI amount is below the SSI federal rate.
How to Find Out Your Specific Payment Amount
The fastest way is to create or log into your my Social Security account at ssa.gov. Once you are logged in, go to "Benefit Estimates" and you will see your estimated SSDI or SSI payment amount based on your current record. This estimate updates automatically as your earnings record changes.
If you do not have an online account, you can call Social Security at 1-800-772-1213 (TTY 1-800-325-0778) and speak to a representative. They can tell you your estimated payment amount over the phone. You will need your Social Security number and some basic information about your work history.
If you have already applied for benefits and your case is pending, you can ask your case worker what your payment amount would be if you are approved. They can calculate this for you based on your process information.
Frequently Asked Questions
Does my payment amount change if my condition gets worse?
No. Once you are approved for SSDI or SSI, your monthly payment amount is set based on the calculation method for your program — not on how severe your condition is. Your payment only changes if your income or resources change (for SSI) or if you return to work (for SSDI), or when Social Security applies the annual cost-of-living adjustment in January.
Can I get a higher SSDI payment if I worked longer before I became unable to work?
Possibly. SSDI uses your highest 35 years of earnings. If you worked additional years at good wages, those years might replace lower-earning years in the calculation, which would increase your payment. However, if you worked fewer than 35 years, adding more work history will not increase your payment — Social Security counts zeros for the missing years.
What if I think my payment amount is wrong?
Request a detailed benefit calculation from Social Security. You can do this through your my Social Security account or by calling 1-800-772-1213. Ask them to walk you through how they calculated your Primary Insurance Amount. If you believe there is an error in your earnings record, you can request a correction, though you must do this within a specific timeframe.
Does SSI payment increase if I move to a state with a higher supplement?
Yes. If you move to a state that pays a higher SSI supplement, your payment will increase to match that state's rate, usually starting the month after you move. You must report your move to Social Security within 10 days. If you move to a state with a lower supplement, your payment will decrease.
Will my SSDI payment stop if I inherit money?
No. SSDI does not count resources or inheritance. Your payment continues regardless of how much money you have in the bank. SSI, however, does count resources, and if you inherit money that brings your total resources above $2,000, your SSI payment will stop until your resources drop back below that limit.