You cannot receive both SSI and SSDI payments in the same month, but you can transition from one to the other

Social Security has a rule called deemed income that prevents you from collecting both Supplemental Security Income (SSI) and Social Security Disability Insurance (SSDI) simultaneously. If you are approved for SSDI, your SSDI payment counts as income that reduces or eliminates your SSI check. However, you may receive one program first, then switch to the other as your circumstances change — and in some cases, you can receive both types of benefits across different time periods within the same year.

The key is understanding how Social Security counts your SSDI as income against your SSI limit. SSI has a monthly income limit (the exact amount varies by state, but federal SSI starts at a base rate). When you receive SSDI, Social Security subtracts that amount from what you would otherwise get in SSI. If your SSDI payment is higher than your SSI would have been, you receive only SSDI and nothing from SSI.

This rule exists because both programs are need-based or disability-based, and Social Security treats them as overlapping sources of support rather than stacked benefits.

Key Takeaways

  • SSDI payments count as income that reduces your SSI payment dollar-for-dollar, so you typically receive only the larger of the two benefits each month.
  • You can receive SSI first while waiting for an SSDI decision, then transition to SSDI once approved without reapplying.
  • If your SSDI payment is lower than your SSI would be, Social Security will pay you both — SSDI plus a partial SSI payment to reach your state's limit.
  • Some people receive SSI in one year and SSDI in another if their work history or medical condition changes, but not both in the same calendar month.

How Social Security counts SSDI as income against SSI

When you receive SSDI, Social Security uses a formula called deemed income to calculate your SSI. Here is how it works in practice: suppose your state's SSI federal benefit rate is $943 per month (the 2024 federal base, though your state may add more). You are approved for SSDI at $800 per month. Social Security subtracts the $800 from $943, leaving $143. You would receive $800 in SSDI and $143 in SSI — a combined $943.

If your SSDI payment is $1,200, it exceeds the SSI limit, so you receive only the $1,200 SSDI check and no SSI at all. You do not get both full amounts; Social Security pays whichever is larger, or splits them so the total does not exceed your SSI limit.

This rule applies every month you are receiving both. If your SSDI amount changes — for example, because you turned 65 and your benefit converted to retirement — your SSI is recalculated when ready.

Receiving SSI while waiting for an SSDI decision

Many people receive SSI first because the approval process is faster. SSI decisions often come within three to five months if you are denied and appeal, while SSDI can take a year or longer, especially if you need a hearing before an administrative law judge. During that waiting period, SSI keeps you afloat financially.

Once your SSDI is approved, you do not lose SSI automatically. Instead, Social Security recalculates your payment using the deemed income rule. If your SSDI is lower than your SSI was, you continue to receive both. If your SSDI is higher, your SSI stops, but you keep your SSDI. You do not have to reapply or notify Social Security separately — the transition happens in the system.

One important detail: if you received SSI overpayments while waiting for SSDI (meaning Social Security paid you more than you were may have access to to), they may recover that overpayment by reducing your SSDI or SSI going forward. This is rare but worth knowing if your circumstances were unusual during the waiting period.

When you might receive both SSDI and SSI in the same month

You receive both in the same month only when your SSDI payment is lower than your SSI limit. This happens most often when you have a work history but earned relatively low wages, so your SSDI benefit is modest. For example, if you worked part-time for a few years and your SSDI is $600, but your state's SSI limit is $943, Social Security pays you $600 SSDI plus $343 SSI to reach the limit.

This combined payment is common among people who became disabled young, before they had time to build substantial work credits, or who worked in low-wage jobs. Social Security does not advertise this possibility, so many people assume they must choose one program or the other. In reality, you receive both if both are needed to reach your state's SSI limit.

The combined payment ends only if your SSDI increases (for example, through a cost-of-living adjustment) enough to meet or exceed your SSI limit, or if your circumstances change in a way that makes you ineligible for SSI.

Transitioning from SSI to SSDI as your work history grows

Some people start on SSI, work part-time or do trial work periods under Social Security rules, and later become may be able to access for SSDI based on their own work record. This is a legitimate path and does not disqualify you from either program.

If you are on SSI and you work, Social Security has rules that allow you to keep some of your earnings without losing benefits when ready. Once you earn enough to have work credits, you may become may be able to access for SSDI. When that happens, Social Security will notify you and recalculate your benefits. You transition to SSDI (or receive both, depending on the amounts) without having to reapply.

This scenario is less common than the reverse — starting with SSDI and staying there — but it does occur, particularly for people who became disabled young and later developed enough work history to may have access to on their own.

What happens if you receive SSDI and then lose it

If you are receiving both SSDI and SSI, and your SSDI stops for any reason — for example, because you reached full retirement age and your benefit converted to retirement, or because you returned to work and your trial work period ended — your SSI does not automatically resume at the full amount.

Instead, Social Security recalculates your SSI based on your current income and resources. If you have no other income and still meet SSI's resource limits, you would receive the full SSI payment. However, if you have other income (such as retirement benefits, a pension, or earnings), that income is counted first, and your SSI is reduced accordingly.

You should contact Social Security to report any change in your SSDI status so they can recalculate when ready. Waiting to report can result in underpayment or overpayment, both of which create problems later.

How to find out which program you are on and what you receive

Log into your my Social Security account at ssa.gov to see your current benefit type and payment amount. Your benefit statement will show whether you are receiving SSI, SSDI, or both. You can also call Social Security at 1-800-772-1213 (TTY 1-800-325-0778) and ask a representative to explain your current payment and why it is that amount.

If you believe you are receiving the wrong amount, or if you think you should be on a different program, request a detailed benefit calculation. Social Security will show you how they arrived at your payment, including how much SSDI they are counting as income against your SSI.

Frequently Asked Questions

If I am on SSI and get approved for SSDI, do I have to tell Social Security?

No. Social Security's systems are connected, so when you are approved for SSDI, they automatically recalculate your SSI. However, it is a good idea to call and confirm the recalculation is correct, because delays sometimes occur and you may be underpaid for a month or two.

Can I choose to receive only SSDI and turn down the SSI portion?

You cannot formally decline SSI if you are may be able to access for it and your SSDI is below your SSI limit. However, if you have other income or resources that make you ineligible for SSI, you would receive only SSDI. Talk to Social Security about your specific situation if you want to understand your options.

What if my SSDI and SSI payments do not add up to what I think they should?

Request an itemized benefit calculation from Social Security. They will show you the SSDI amount, the SSI limit for your state, how much SSDI counts as income, and what you receive from each program. Errors do happen, and Social Security can correct them if you catch them.

If I move to a different state, does my SSI payment change?

Yes. Some states add money to the federal SSI base rate, so your SSI limit may increase or decrease when you move. Your SSDI stays the same, but your combined payment may change. Notify Social Security of your move so they can recalculate.

Can I receive SSI in one year and SSDI in another?

Yes. You can receive SSI for part of a year, then transition to SSDI mid-year once approved. Both programs count the same calendar year, so you may receive both types of benefits in the same tax year but in different months. This does not create a tax problem, but it does mean your annual income statement will show both programs.