SSI and SSDI are separate programs with different rules about who qualifies, how much you receive, and what counts as income

SSI (Supplemental Security Income) and SSDI (Social Security Disability Insurance) both provide monthly payments to people with disabilities, but they are run by different parts of Social Security and have almost nothing in common except the name. SSI is a needs-based program — you may have access to partly because you don't have much money. SSDI is an insurance program — you may have access to because you or a parent paid into Social Security through payroll taxes. The amount you get, the rules about working, and what happens if you have savings are completely different between the two.

Many people think the programs are the same because they both come from Social Security and both serve people with disabilities. They are not. Understanding which one you might receive, or whether you could receive both, changes what you need to do next and what your actual monthly payment will be.

Key Takeaways

  • SSI is based on financial need; SSDI is based on your own or a parent's work history and tax contributions to Social Security.
  • SSI has strict limits on how much money and property you can own; SSDI has no resource limits at all.
  • SSI payments are usually smaller and come from general tax revenue; SSDI payments are based on your earnings record and come from the Social Security trust fund.
  • You can receive both SSI and SSDI at the same time, though SSDI payments reduce your SSI amount dollar-for-dollar.
  • The work rules are different: SSI has a lower earnings threshold before benefits reduce, while SSDI allows higher earnings before reduction kicks in.

How you may have access to: work history versus financial need

SSDI requires that you or a parent (if you became disabled before age 22) paid into Social Security through employment. Social Security tracks these contributions under your Social Security number. If you have enough work credits — the number depends on your age when you became disabled — you can receive SSDI even if you have $100,000 in the bank or own property. The program does not care about your finances at all.

SSI requires that you have limited income and resources. The resource limit is $2,000 for an individual and $3,000 for a couple (these figures have not changed since 1989, though some states have higher limits). Your home and one vehicle do not count toward this limit, but savings, investments, and other property do. You also cannot earn more than a certain amount per month — in 2024, that threshold is around $1,943 for SSI, though it changes yearly.

You can have both SSDI and SSI at the same time. This happens when you have a work history but your SSDI payment is very low — perhaps because you worked part-time or for only a few years. SSI then tops up your payment to a minimum level, though each dollar of SSDI reduces your SSI dollar-for-dollar.

How much money you receive each month

SSDI payments are calculated from your lifetime earnings record. The higher your average earnings during your working years, the higher your SSDI payment. Payments range widely — some people receive $400 a month, others $3,000 or more. The exact amount depends entirely on what you earned and when you earned it.

SSI payments are set by Congress and are the same for everyone in the same household situation (though some states add extra money on top of the federal amount). In 2024, the federal SSI payment for an individual is $943 per month, and for a couple it is $1,415. These amounts increase yearly with inflation. Because SSI is needs-based, your payment reduces if you have other income — from a job, from family members, or from other benefits.

What counts as income and how it affects your payment

SSDI has no income limit. You can earn $10,000 a month and still receive your full SSDI payment. However, if you earn too much, you may lose your Medicare coverage or trigger other work-related rules. The key threshold is called Substantial Gainful Activity (SGA). In 2024, SGA is $1,550 per month for non-blind people and $2,590 for blind people. If you earn more than this, Social Security may decide you are no longer disabled and stop your benefits.

SSI has a strict income limit. The first $65 of earned income per month does not count, and then half of the rest counts against your SSI payment. So if you earn $200 a month, $65 is excluded, leaving $135, and half of that ($67.50) reduces your SSI payment. Unearned income — like money from family members, child support, or other benefits — counts dollar-for-dollar against your SSI payment with no exclusion.

Resource limits and what you can own

SSDI has no limits on resources. You can own a house, multiple vehicles, investment accounts, and savings without affecting your benefits. The only thing that matters is whether you are disabled and whether you meet the work history requirement.

SSI has strict resource limits. You can own one home (no matter its value) and one vehicle (no matter its value), but everything else counts toward the $2,000 limit for individuals. This includes bank accounts, stocks, bonds, jewelry, and collectibles. Some states have raised their resource limits — California allows $3,000 for individuals, and New York allows $15,000 — but most states use the federal limit. If you inherit money or receive a lump-sum payment, you can lose SSI immediately if your resources exceed the limit.

How work affects your benefits

SSDI includes work incentives designed to let you test whether you can work without losing benefits. You can work and earn money, and as long as you stay below the SGA threshold ($1,550 per month in 2024), your benefits continue. If you go over SGA, Social Security does not stop your benefits right away — you enter a trial work period where you can earn any amount for nine months without losing benefits. After that, there is a 36-month period where you can still receive benefits in months when you earn below SGA.

SSI has stricter work rules. Once you earn more than $65 per month, your SSI payment begins to reduce. There is a Plan to Achieve Self-Support (PASS) that lets you set aside income and resources for a specific work goal, but it requires a written plan and Social Security approval. The rules are complex, and many people lose SSI benefits unintentionally because they did not understand how their earnings would affect their payment.

Healthcare coverage tied to each program

SSDI recipients receive Medicare after 24 months of receiving benefits. Medicare is the same health insurance program that covers people over 65. You pay premiums for Medicare Part B (currently $174.70 per month in 2024, though it varies by income), and it covers doctor visits, hospital stays, and some prescription drugs.

SSI recipients receive Medicaid, which is a state-run program that covers low-income people. Medicaid is free — there are no premiums. The coverage varies by state, but it typically covers doctor visits, hospital stays, prescription drugs, and some services that Medicare does not cover. If you lose SSI because your income or resources are too high, you may also lose Medicaid, which can be a major problem if you have ongoing medical needs.

Frequently Asked Questions

Can I receive both SSI and SSDI at the same time?

Yes. If you have a work history but your SSDI payment is low, SSI can top it up to the federal minimum. Each dollar of SSDI reduces your SSI dollar-for-dollar, so if you receive $500 in SSDI and the SSI federal rate is $943, you would receive $443 in SSI. You would also receive Medicaid from the SSI part of your benefits.

If I inherit money, what happens to my benefits?

If you receive SSDI, nothing happens — inheritance does not affect your benefits. If you receive SSI, you will lose benefits immediately if your resources exceed $2,000 (or your state's limit). You can spend down the inheritance or set aside funds under a special needs trust to protect your benefits, but you need to act before the money is deposited into your account.

What if I worked for only a few years — can I get SSDI?

It depends on your age when you became disabled. If you became disabled before age 24, you need only six work credits in the three years before you became disabled. If you became disabled between 24 and 31, you need work credits for half the time between age 21 and when you became disabled. If you became disabled after 31, you need 20 work credits in the 10 years before you became disabled. A work credit is earned by paying Social Security taxes, usually one per quarter of employment.

Do I have to report my income to Social Security?

Yes, for both programs. SSDI recipients must report if they earn over SGA ($1,550 per month in 2024). SSI recipients must report all earned and unearned income. Failing to report can result in overpayments that you will have to repay, and repeated failures can lead to fraud investigations. Contact your local Social Security office or your representative payee if you have questions about what to report.

Can I work while receiving SSI or SSDI?

Yes, but the rules are different. SSDI allows you to earn up to SGA without losing benefits and includes a trial work period. SSI allows you to earn $65 per month before your benefits reduce. Both programs have work incentives and special rules, so contact Social Security before you start working to understand how your specific situation will be affected.