Living arrangements
Where you live — and who pays for your food and shelter — can change your SSI payment as much as your cash income can. SSA calls this in-kind support and maintenance (ISM): food or shelter you receive from someone else, or that someone else pays for on your behalf. If you live in someone else's household and do not pay your fair share of food and shelter costs, SSA reduces your payment.
- Living in another person's household without paying your share usually triggers a reduction.
- The one-third reduction: your federal payment falls by one-third of the federal benefit rate.
- Living alone, or paying your fair share, avoids the reduction.
The one-third reduction, with numbers
When the reduction applies, SSA subtracts one-third of the federal benefit rate from your payment. For 2026, one-third of $994 is $331.33 (a calculated figure — divide the rate by three). Your federal payment would therefore be $994 − $331.33 = $662.67 before any income deductions. The same one-third rule applies to the couple rate.
The reduction applies when you live in another person's household and receive both food and shelter from within that household without paying your pro-rata share. If you receive only shelter, or only food, SSA instead values the support item by item — a different calculation that can be higher or lower than the one-third rule.
What counts as support
Someone paying your rent, mortgage, property taxes, heating, electricity, water, or garbage collection counts as shelter support. Someone buying your groceries counts as food support. Living rent-free in a relative's house is the most common case. By contrast, help that is not food or shelter — a ride to the doctor, a phone, clothing — is generally not counted as ISM.
If you pay your fair share, there is no reduction: SSA divides the household's food and shelter costs by the number of people in the household, and if you pay at least your share, you are treated as living independently for this rule. Keep records — receipts, a written agreement with the householder, bank transfers — because SSA will ask how the costs are shared.
Institutions and special cases
Living in a medical institution, a nursing home, or a public institution changes the rules sharply: in many cases the federal payment drops to $30 a month while Medicaid pays the institution. Homelessness has its own rules too — you can receive SSI while homeless, and SSA has procedures for people without a fixed address. If either situation applies to you, contact SSA directly rather than relying on the general rules on this page.
Sources to check: SSA, Understanding Supplemental Security Income — living arrangements (ssa.gov/ssi/text-living-ussi.htm); SSA, in-kind support and maintenance (ssa.gov/ssi/text-ism-ussi.htm).