SSI is generally harder to get than SSDI because it has a strict income and asset limit, while SSDI only looks at your work history

Both programs pay monthly cash to people with disabilities, but they measure who qualifies in completely different ways. SSDI (Social Security Disability Insurance) asks: Have you worked enough and paid Social Security taxes? SSI (Supplemental Security Income) asks: Are you poor enough right now? The income and asset rules for SSI are so tight that many working-age adults cannot meet them, even if they have a severe disability. SSDI has no income or asset limit at all — you could have $100,000 in the bank and still collect.

That said, SSDI is harder to get initially because you have to prove you worked long enough. SSI is faster to start but keeps you poor to keep you on it. Which one is "harder" depends on whether you have a work history and how much money you have now.

Key Takeaways

  • SSDI requires a work history of roughly five years in the last ten, but has no income or asset limit once you may have access to.
  • SSI has no work history requirement but limits your income to roughly $943 per month and your assets to $2,000 (as of 2024, though these amounts change yearly).
  • SSI is faster to process if you have no work history, but SSDI is faster if you have worked and paid taxes.
  • You can receive both programs at the same time if you meet the rules for each, though the total payment is capped.
  • The medical standard for disability is identical for both programs — the difference is only in how you prove you earned the right to it.

How SSDI's work history requirement works

SSDI is a form of insurance. You pay into it through payroll taxes, and if you become disabled before retirement age, you collect. To may have access to, you must have worked long enough to build up work credits. The Social Security Administration awards one credit for each $1,640 you earn in a year (this dollar amount changes annually). Most people need 40 credits total, with at least 20 earned in the ten years before they became disabled.

For someone in their 20s or early 30s, this usually means you need roughly five years of steady work. For someone older, the requirement is lower — a 55-year-old needs only about 8.5 years of work history. If you have never worked or stopped working years ago, you cannot get SSDI no matter how disabled you are. This is the biggest barrier for SSDI: the work history gate.

Once you pass that gate, Social Security does not care how much money you have or earn. You can work part-time and still collect SSDI. You can inherit money. You can have a spouse with income. None of that changes your SSDI payment.

How SSI's income and asset limits work

SSI is a welfare program, not insurance. It is funded by general tax revenue and is meant for people with disabilities who are poor. To may have access to, your monthly income must stay below a federal minimum — $943 per month in 2024 for an individual living alone. Your total assets (savings, vehicles, property other than your home) must not exceed $2,000. A married couple can have $3,000 in assets combined.

These limits are the reason SSI is harder for many people. If you work even part-time, your income may exceed the limit. If you have a family member who helps you financially, that counts as income. If you inherit money or receive a tax refund, you can lose SSI for months. The program is designed to help only the poorest people with disabilities, and staying on it means staying poor.

SSI has no work history requirement. You can have never worked a day and still may have access to, as long as you are disabled and poor. This makes SSI the only path for people who became disabled before they could build a work history — children, teenagers, or young adults who have never held a job.

The medical standard is the same for both programs

Both SSDI and SSI use the same definition of disability: you must have a condition that prevents you from working and is expected to last at least 12 months or result in death. Social Security maintains a list of conditions that automatically meet this standard — severe arthritis, terminal cancer, advanced Parkinson's disease, and others. If your condition is on the list and the medical evidence supports it, approval is faster for both programs.

If your condition is not on the list, Social Security must decide whether it prevents you from doing any work. This decision takes longer and is where most denials happen, regardless of which program you are pursuing. The medical bar is identical; only the financial rules differ.

Processing time and approval rates

SSDI typically takes three to five months from application to a decision. SSI can take two to four months. These timelines assume straightforward cases with clear medical evidence. Complex cases or cases requiring a hearing can take a year or longer for either program.

Approval rates at the initial stage are roughly 30 to 35 percent for both programs. Most denials are appealed, and approval rates at the hearing stage (before an administrative law judge) are higher — around 50 to 60 percent. The reason for denial is usually insufficient medical evidence, not the program type.

If you have a work history and meet SSDI's requirements, you may find SSDI faster because you do not have to prove you are poor — Social Security already knows you worked. If you have no work history, SSI may move faster because there is no work credit verification step.

Can you get both SSDI and SSI at the same time

Yes. If you meet the work history requirement for SSDI and the income and asset limits for SSI, you can receive both payments. This usually happens when your SSDI payment is very low — perhaps because you worked only briefly or at low wages. Social Security will pay your SSDI amount first, then top it up with SSI to reach the federal minimum.

This combination is called concurrent benefits. It is most common for people who became disabled young, worked a few years, then stopped. They have just enough work history for SSDI but not enough to earn a full payment. The SSI portion fills the gap.

Which program should you pursue first

If you have worked and paid Social Security taxes, apply for SSDI first. You do not have to prove you are poor, and there is no asset limit. If you are denied, you can appeal or apply for SSI afterward — your SSDI application does not hurt your SSI chances.

If you have never worked or have not worked in many years, you can only get SSI. Apply directly for SSI. Do not waste time on SSDI if you do not have the work history, because you will be denied automatically.

If you are unsure whether you have enough work history, call Social Security at 1-800-772-1213 and ask. They can tell you in minutes whether you have the credits needed for SSDI. This call costs nothing and does not start an application.

Frequently Asked Questions

If I am denied SSDI, can I switch to SSI?

Yes. An SSDI denial does not affect your SSI chances. You can apply for SSI immediately after a denial, and Social Security will process it as a separate case. If you were denied SSDI because you do not have enough work history, SSI is your only option. If you were denied for medical reasons, the same medical evidence will be reviewed for SSI, so you may want to gather more evidence before applying.

Does working part-time hurt my chances of getting SSDI?

No. Working part-time does not disqualify you from SSDI and does not reduce your payment once you are approved. However, if you are currently working and earning above a certain threshold (called substantial gainful activity, roughly $1,550 per month in 2024), Social Security may decide you are not disabled. The key is whether you can work, not whether you currently do.

What counts as income for SSI?

Wages, self-employment income, and unearned income like pensions, child support, or help from family members all count. However, SSI excludes the first $65 of monthly earnings and half of earnings above that, so part-time work does not reduce your SSI payment dollar-for-dollar. Gifts and one-time payments (like tax refunds) are treated as assets, not income, and can cause you to lose SSI if they push you over the $2,000 limit.

Can I work while collecting SSDI or SSI?

Yes, both programs allow work. SSDI has no income limit, so you can earn as much as you want without losing your payment. SSI allows up to roughly $1,000 per month in earnings (after the $65 exclusion and the 50 percent reduction) before your payment is affected. Both programs have work incentive rules that let you test your ability to work without immediately losing benefits.

How do I know if I have enough work history for SSDI?

Call Social Security at 1-800-772-1213 and ask them to check your work record. They will tell you how many credits you have and whether you meet the requirement for your age. You can also create an account at ssa.gov and view your earnings record online. This takes five minutes and costs nothing.