Form SSA-21. Supplement to Claim of Person Outside the United States

Form SSA-21, the Supplement to Claim of Person Outside the United States, is used by individuals who reside outside the United States and wish to apply for certain Social Security benefits. The main purpose of this form is to supplement a claim for benefits and provide additional information required for processing the claim.

For instance, a U.S. citizen living abroad who is eligible for Social Security benefits can use this form to provide information necessary to process their claim. The purpose is to ensure that individuals residing outside the United States can access the benefits they are entitled to while meeting specific requirements.

The parties involved are individuals residing outside the United States who are eligible for Social Security benefits and the SSA. The form consists of sections for the applicant's information, details about their foreign residence, and additional documentation. Accurate and complete submission is important for processing benefit claims from outside the U.S.