SSI and SSDI are separate programs with different rules about who receives money and how much

SSI (Supplemental Security Income) and SSDI (Social Security Disability Insurance) are not the same. Both are run by the Social Security Administration, both serve people with disabilities, and both provide monthly payments — but they use different rules to decide who gets money, how much you receive, and what happens if you earn income or have savings.

The core difference is this: SSDI is based on your own work history or your parent's work history. SSI is based on financial need. You can receive one, the other, or both at the same time, depending on your situation.

Key Takeaways

  • SSDI requires you or a parent to have paid Social Security taxes for a certain period; SSI requires you to have limited income and resources regardless of work history.
  • SSDI monthly payments are based on the earnings record of the worker; SSI payments are the same amount for everyone in your state, minus what you already earn or own.
  • SSDI allows you to earn more money before payments reduce; SSI reduces payments dollar-for-dollar once you earn above a small monthly threshold.
  • You can receive both programs at once if you meet the rules for each one.

How SSDI decides who receives money

SSDI is an insurance program. You or a parent paid into Social Security through payroll taxes, and SSDI is the payout when you become disabled before retirement age. The Social Security Administration looks at the work record of the person who paid in — either you, your parent, or your grandparent — to see whether enough quarters of coverage were earned.

You do not have to be poor to receive SSDI. You can own a house, a car, savings, and investments. There is no resource limit. The only income rule is that if you work and earn above a certain amount (called substantial gainful activity), the Social Security Administration may determine you are not disabled and stop your benefits.

SSDI monthly payments vary widely because they are based on the earnings record of the worker. Someone whose parent earned $80,000 a year will receive a different amount than someone whose parent earned $30,000 a year.

How SSI decides who receives money

SSI is a needs-based program. You do not need a work history of your own or a parent's work history. Instead, the Social Security Administration looks at your income and resources (money and things you own) right now. If you have too much of either, you do not receive SSI, regardless of your disability.

The resource limit for SSI is $2,000 for an individual and $3,000 for a couple (these amounts have not changed since 1989). Resources include bank accounts, stocks, bonds, and vehicles. Your primary residence and one vehicle do not count toward the limit.

SSI monthly payments are the same for everyone in your state (the federal base amount is $943 per month in 2024, though some states add extra money). If you earn income, your SSI payment reduces by $1 for every $2 you earn above $65 per month. This means earning even a small amount of money shrinks your benefit quickly.

Work incentives and how they differ between the programs

SSDI has more generous work incentives. You can earn up to $1,550 per month (in 2024) without losing benefits during a nine-month trial work period. After that, you have a 36-month extended may be able to access period where you can still work and keep benefits as long as you do not earn above the substantial gainful activity limit (around $1,550 per month). You can also use work incentives like impairment-related work expenses and Plans to Achieve Self-Support (PASS).

SSI work incentives are narrower. The first $65 of monthly earnings does not count, and then half of everything above that counts against your benefit. A PASS plan can help you set aside income and resources for work-related goals, but the basic math means working more than a few hours per week will reduce or eliminate your SSI payment.

When you can receive both SSI and SSDI at the same time

You can receive both programs if you meet the rules for each. This usually happens when you have a work history that qualifies you for SSDI, but your SSDI payment is very low — so low that you also fall below the SSI income limit. The Social Security Administration will pay your SSDI first, then add SSI on top to bring you up to the SSI federal benefit rate.

This combination is called concurrent benefits. It is not common, but it is possible. If you receive both, the work incentives and income rules of both programs apply to you, which can be complicated. A work incentive planning and assistance (WIPA) project can help you understand how work affects your specific combination of benefits.

How to find out which program you might receive

If you have a work history (or a parent does), you may be able to receive SSDI. The Social Security Administration will look at your earnings record to see whether you have enough quarters of coverage. You can view your own earnings record online through your Social Security account at ssa.gov.

If you do not have a work history, or if your work history does not may have access to you for SSDI, you may be able to receive SSI if your income and resources are low enough. SSI is also available to people under age 18 and over age 65, not just working-age adults with disabilities.

The Social Security Administration determines which program you receive (or both) based on your specific situation. You cannot choose one over the other.

Frequently Asked Questions

Can I receive SSDI if I have never worked?

Yes, if you became disabled before age 22 and a parent is retired, disabled, or deceased. You can receive SSDI based on that parent's work record. If neither parent qualifies, you would need to look into SSI instead.

What happens to my SSDI if I start working?

You can work and keep SSDI during the nine-month trial work period with no reduction in benefits. After that, you enter a 36-month extended may be able to access period where you keep benefits as long as you do not earn above the substantial gainful activity limit (around $1,550 per month in 2024).

If I have $3,000 in savings, can I receive SSI?

No. The SSI resource limit is $2,000 for an individual. Having $3,000 in savings makes you ineligible. Your primary home and one vehicle do not count toward this limit, but cash and bank accounts do.

Do I have to choose between SSI and SSDI?

No. The Social Security Administration determines which program you receive based on your work history and financial situation. If you may have access to for both, you receive both, with SSDI paid first and SSI added on top if needed.

Where can I learn more about how work affects my benefits?

Contact a Work Incentive Planning and Assistance (WIPA) project in your state — they provide free information about how work, earnings, and other income affect SSDI and SSI. You can find your local WIPA project at vcu-ntdc.org.