A forgotten Social Security number can be retrieved by ordering a replacement Social Security card from the Social Security Administration (SSA). The process requires several identification documents, the completion of a form and the submission of both to the SSA. Documents and form can be submitted in-person or by mail.
Requirements, forms and submission instructions for ordering a replacement Social Security card are available on the SSA website at SSA.gov. The SSA requires proof of citizenship and identity for the issuance of a replacement Social Security card. Acceptable documents for proof of citizenship include a U.S. birth certificate or U.S. passport. For proof of identity, documents such as a U.S. driver's license, a state-issued non-driver identification card or a U.S. passport can be used. One document type can be used as proof of both citizenship and identity.
All documents provided must be originals or copies certified by the issuing agency. Photocopies or notarized copies of documents are not accepted. If an individual cannot provide these documents, the SSA may ask to see other documents such as an employee identification card, school identification card, health insurance card or a U.S. military identification card.
Document requirements for foreign-born U.S. citizens are the same as for native U.S. citizens. Document requirements for non-citizens can include a range of immigration documents depending on immigration and visa status.