SSDI vs. SSI: Key Differences, Who Qualifies and Getting Both

What are SSDI and SSI?

Both SSDI and SSI are federal cash assistance programs run by the Social Security Administration for people with disabilities. Despite their similar names, they are separate programs with different rules.

SSDI stands for Social Security Disability Insurance. It provides monthly cash payments to people who have paid into the Social Security system through work and can no longer work due to a disability.

SSI stands for Supplemental Security Income. It provides monthly cash payments to people with disabilities, blindness, or age 65 and older who have limited income and resources.

Key Differences Between SSDI and SSI

Work History

To qualify for SSDI, you must have a work history. You need to have earned enough work credits by paying Social Security taxes through your job. Most people need at least 40 work credits, though younger workers may need fewer.

SSI does not require any work history. You can qualify even if you have never worked.

Income and Resource Limits

SSDI has no income or resource limits. You can earn money from other sources and still receive your full SSDI payment. There is no limit to how much you can own.

SSI has strict limits. In 2026, you can have no more than $2,000 in resources if you are single, or $3,000 if you are married. Your monthly income cannot exceed [VERIFY: 2026 SSI income limit].

Monthly Payment Amount

SSDI payments are based on your lifetime work history and earnings record. Higher lifetime earnings usually mean higher payments. The average SSDI payment is [VERIFY: average SSDI payment amount].

SSI payments are based on the federal benefit rate, which is adjusted each year for inflation. In 2026, the federal SSI payment is [VERIFY: 2026 SSI federal benefit rate]. Some states add extra money on top of the federal payment.

Spouse and Family Benefits

If you qualify for SSDI, your spouse, ex-spouse, and children may be eligible for benefits based on your work record.

SSI does not provide family benefits. Only you can receive SSI based on your own eligibility.

Who Can Get SSDI

To qualify for SSDI, you must:

• Have a medical condition that meets Social Security's definition of disability (expected to last at least 12 months or result in death)
• Have earned enough work credits through paid employment
• Be under age 65 (or meet special rules if you are older)

You can apply for SSDI at any time. There is no deadline.

Who Can Get SSI

To qualify for SSI, you must:

• Be age 65 or older, or have a disability or blindness that meets Social Security's definition
• Have limited income and resources
• Be a U.S. citizen or certain qualified non-citizen

Your income limit depends on where you live and whether you are married. The federal poverty guidelines for 2026 show maximum income thresholds. Some states have higher limits.

Can You Get Both SSDI and SSI?

Yes, you may be able to get both programs at the same time. This is sometimes called "concurrent" benefits.

You would typically receive SSI up to the federal benefit rate, and then SSDI on top of that, if your SSDI payment is higher than the SSI limit. This helps you get closer to a livable income.

However, not everyone can get both. You must:

• Qualify for SSDI based on your work record
• Have limited income and resources that meet SSI rules

If you receive both programs, your total income and resources still have to meet SSI limits. Having both programs can be complex, so it helps to speak with a Social Security representative.

How to Apply

You can apply for both SSDI and SSI through the Social Security Administration. Apply online at ssa.gov/disability, by phone, or in person at your local Social Security office.

Applying is free. Only the Social Security Administration decides whether you qualify.

The application process takes time. It usually takes several months to hear a decision. If you are denied, you can appeal the decision.

Work and Reporting Requirements

Both SSDI and SSI have rules about working while receiving benefits. In general, if you earn too much money, your benefits may be reduced or stop.

SSDI has a trial work period that lets you test whether you can work without losing benefits. SSI has a different work incentive program.

If you receive either benefit and start working or earn more money, you must report it to Social Security. Changes in your income, resources, living situation, or medical condition should be reported.

Getting Help With Your Application

Applying for disability benefits can feel overwhelming. If you need help, you can contact your local Social Security office or work with a qualified representative.

Some organizations offer free help with applications. You can also find more information about both programs at our SSDI guide or our SSI guide.