Washington SSI 2026: A State Supplement Closed to New Claims

SSI is a federal payment, and Washington has a state supplement on top — but it is now a legacy program, closed to most new enrollees, so most people applying today receive the federal amount only.

Quick answer

To apply for SSI in Washington: Apply online at ssa. gov, by phone through Social Security’s national line, or at your local Social Security office (find it with the SSA office locator). Applying is free through the official agency.

SSI in Washington: the federal payment and the state supplement

SSI is a needs-based federal payment run by the Social Security Administration, with income and resource limits set nationally. For 2026 the federal benefit rate is $994 a month for an individual and $1,491 for a couple. Washington’s State Supplementary Payment is funded entirely with state dollars and dates back to a 1973 income guarantee, but the Department of Social and Health Services now runs it as a legacy program closed to new enrollment except for a narrow group of Developmental Disabilities Administration clients. As a result, most people newly approved for SSI in Washington receive the federal amount only.

In most states, being approved for SSI also opens the door to Medicaid; some states apply their own rules and ask you to file a separate Medicaid application, so confirm how your state handles it when your SSI is approved. To apply for SSI you deal with Social Security directly — the federal steps are the same everywhere and are covered in how to apply for SSI step by step.

What this benefit helps with

SSI (Supplemental Security Income) provides monthly cash payments to help people who are 65 or older, blind, or have a disability and who have very limited income and resources pay for basics like food, clothing, and shelter. It is funded by general federal tax revenue, and you do not need a work history to qualify.

SSI vs SSDI: key difference

SSI is need-based – it is for people with limited income and resources, and no work history is required. SSDI is instead based on your work history: you must have earned enough work credits. Both use the same federal medical definition of disability, decided by your state Disability Determination Services. Some people qualify for both. See our SSI vs SSDI guide for a full comparison.

Who may qualify

You may qualify for SSI if you are 65 or older, blind, or have a qualifying disability, and your income and countable resources are below the federal limits. You must be a U.S. citizen or an eligible non-citizen. Social Security sets the exact income and resource limits and updates them each year – check ssa.gov for the current figures.

How to apply

Apply online at ssa.gov, by phone through Social Security’s national line, or at your local Social Security office (find it with the SSA office locator). The application and rules are federal and the same in every state; only the medical decision and state supplement are handled locally.

Documents you may need

Have ready: your Social Security number, proof of age and citizenship or immigration status, information about your income and resources, where you live, and – for a disability claim – your medical records, doctors, and medications. Bring copies and keep your originals.

State-related help and related benefits

In Washington, the medical part of your claim is decided by Washington’s Disability Determination Services (DDS), a state agency that works with Social Security. Washington administers its own State Supplementary Payment (SSP) added to federal SSI for people in certain situations – check with the state. Washington is a “1634” state, so being approved for SSI automatically qualifies you for Medicaid – you do not file a separate Medicaid application (confirm with Washington Apple Health (Medicaid)). You may also qualify for other Washington help – see the related guides below.

Official website / application link

Apply for SSI (SSA), find your local SSA office, Benefits.gov, and Washington Apple Health (Medicaid). Applying is free through Social Security – never pay a third party.

What to expect

SSI decisions can take several months, especially when a medical decision is needed. If you are approved, your benefits may include back pay to your application date. If you are denied, you have the right to appeal – many people are approved on appeal.

Related guides on GlobalBenefits.org

Frequently asked questions

Do I need a work history for SSI?
No. SSI is need-based and does not require any work history – it is based on your age or disability and your limited income and resources.

Will SSI affect my other benefits?
SSI can affect Medicaid, SNAP, and other programs. Whether Medicaid is automatic depends on your state – see the state note below.

Last reviewed July 23, 2026 by the GlobalBenefits editorial team. SSI and SSDI are federal programs run by the Social Security Administration; limits, amounts, dates, and medical criteria are set by SSA and can change – always confirm at ssa.gov. GlobalBenefits is not a government agency. See our corrections policy.

SSI in more states: Virginia · Arizona · Tennessee · New Jersey.

Compare SSI in more states: California · Florida · New York · Pennsylvania.