Washington adds $14/month to the federal SSI payment for an eligible individual, bringing the combined total to roughly $981/month before countable income is deducted. It's a small supplement relative to the Seattle metro area's cost of living โ one of the more striking mismatches on this list.
How the Combined Total Works
The federal SSI baseline for 2026 is $967/month for an individual. Washington's $14 supplement applies statewide, whether you live in downtown Seattle โ where rents rank among the highest in the country โ or in a lower-cost area east of the Cascades.
๐ก SSDI does not vary by state of residence โ it's based purely on your earnings record. SSI benefits themselves are also not subject to state income tax anywhere, including in Washington.
A Small Supplement in a High-Cost Metro Area
Washington has no state income tax, which is often cited as a general cost-of-living advantage โ but that doesn't translate into a larger SSI supplement, since SSI income isn't taxed at the state level regardless of where you live. The real gap for Washington recipients is housing: Seattle-area rent has climbed to some of the highest levels in the country, and a $14 monthly supplement does very little to close that gap compared to states like California or Massachusetts.
Frequently Asked Questions
How much is the Washington SSI supplement?
Approximately $14/month for an eligible individual, bringing the combined federal + state total to roughly $981/month before countable income is deducted.
Does Washington's lack of income tax offset its small supplement?
Not really โ SSI benefits aren't subject to state income tax in any state, so Washington's tax structure doesn't provide extra benefit to SSI recipients specifically.
Get your personalized estimate including the Washington state supplement.
Calculate My Washington Benefit โ