Disability āŗ SSDI or SSI
What’s the difference between SSDI and SSI?
For anyone deciding which disability program to apply for, or wondering why a neighbor gets a different check. By the end you’ll know how the two programs differ, what each pays, which health coverage comes with each, and how some people get both.
SSDI (Social Security Disability Insurance) is insurance you earn through work credits. SSI (Supplemental Security Income) is based on financial need: low income and savings of no more than $2,000, or $3,000 for a couple. SSDI leads to Medicare. SSI often leads to Medicaid. If your SSDI check is small, you may get both.
What is SSDI?
SSDI pays people who worked long enough to be insured. You generally need 40 work credits, with 20 earned in the 10 years ending with the year your disability began. A work credit took $1,890 in earnings in 2026; $1,970 starting January 2027.
Your check is based on your own Social Security record, so amounts differ from person to person. SSDI has no savings test. SSA’s Red Book says savings and other unearned income “do not affect your payment amount.” In October 2026, SSA paid about 6.94 million disabled workers an average of $1,639.28 a month. When you reach full retirement age, SSDI turns into a retirement benefit automatically, and the amount stays the same.
What is SSI?
SSI is for people with limited income and savings who are disabled, blind, or 65 or older. Work history is not part of the test. The federal amount is the most SSI can pay. Other income lowers it.
- One person: $994 a month in 2026; $1,029 starting January 2027
- A couple: $1,491 a month in 2026; $1,544 starting January 2027
The savings limit, which SSA calls the resource limit, is $2,000 for one person and $3,000 for a couple. It has not changed since 1989.
SSI starts sooner than SSDI but can’t go back as far. There is no 5-month waiting period. SSI can be paid starting the month after you apply, or the month after you meet every rule, if that comes later. It does not pay for months before you applied, so apply as soon as you think you qualify.
How do they compare side by side?
| SSDI | SSI | |
|---|---|---|
| Who it’s for | Disabled workers who earned enough work credits | People who are disabled, blind or 65+, with limited income and savings |
| What it’s based on | Your work history (the work credits test) | Financial need |
| Monthly amount | Based on your record. Average for disabled workers: $1,639.28 (October 2026) | Up to $994 in 2026; $1,029 starting January 2027 (one person) |
| Savings limit | None. Savings and other unearned income don’t change your SSDI check | $2,000 one person; $3,000 couple |
| Monthly earnings limit (SGA) | $1,690 a month in 2026; $1,770 starting January 2027 | Same limit for people who aren’t blind |
| Health coverage | Medicare after 24 months of SSDI | Medicaid with the SSI approval in DC and 34 states; a state decision elsewhere |
| Waiting period | Generally 5 full months before the first SSDI month (none for ALS) | No 5-month wait. SSI can start the month after you apply, or after you meet every rule, if that is later |
Can I get both?
Yes, if your SSDI check is small. SSI counts your SSDI as income that isn’t from work. SSA ignores the first $20 of it, then subtracts the rest from the SSI amount. It counts your SSDI amount before anything is taken out, such as a Medicare premium.
Example for 2027: your SSDI is $700 a month, and you have no other income. SSI counts $700 minus $20, or $680. The SSI amount of $1,029 minus $680 leaves $349 a month in SSI, on top of your $700 SSDI.
With no other income, SSI can add something when SSDI is under $1,014 a month in 2026, or under $1,049 starting January 2027. Your savings must also be within the limit.
Which health coverage comes with each?
SSDI leads to Medicare. You get Medicare automatically after 24 months of disability benefits. It starts in the 25th month. People with ALS get Medicare as soon as their disability benefits start.
SSI often leads to Medicaid. How it works depends on your state:
- DC and 34 states: SSA’s SSI approval also makes the Medicaid decision.
- Alaska, Idaho, Kansas, Nebraska, Nevada, Oklahoma, Oregon and Utah (and the Northern Mariana Islands): the state makes its own Medicaid decision, with a separate application.
- Connecticut, Hawaii, Illinois, Minnesota, Missouri, New Hampshire, North Dakota and Virginia: these “209(b)” states also make their own Medicaid decision. Contact your state Medicaid office.
For more, see Medicare and Medicaid with a disability.
When you call or apply, ask SSA to look at both programs. If your work record is thin and your savings are under $2,000, SSI may be the program that fits.
Free tool: See which SSDI and SSI rules may fit you, and get an SSI estimate.
Start āRelated
Sources. SSA, 2027 Cost-of-Living Adjustment fact sheet, and Federal Register notice 2026-21796 (Oct 26, 2026) Ā· SSA Office of the Chief Actuary, “SSI Federal Payment Amounts,” “Substantial Gainful Activity” and “Quarter of Coverage” Ā· SSA, disability qualification page, ssa.gov/benefits/disability/qualify.html (read Nov 12, 2026) Ā· SSA, Monthly Statistical Snapshot, October 2026 (released Nov 2026) Ā· SSA, ssa.gov/ssi Ā· 20 CFR 404.130, 404.315, 416.202, 416.203, 416.335, 416.501, 416.1121, 416.1123, 416.1124, 416.1205 Ā· SSA, Red Book 2026, “Overview of our Disability Programs” (read Nov 12, 2026) Ā· Medicare.gov, “Before 65” Ā· SSA POMS HI 00801.146 and SI 01715.010 (rev. Sept 30, 2026).
Last verified: November 12, 2026. We re-check these figures every January and whenever the rules change.
Benefits Insider is an independent publisher, not a government agency. This page is general information, not legal or financial advice for your situation. For a decision on your case, contact Social Security at 1-800-772-1213 or your state Medicaid office.