How can I find my child’s social security number if I lose my card

A Social Security number is an identification number assigned to US citizens, permanent residents and temporary workers. The number is used to track individual income for tax purposes and has also become a form of identity confirmation when applying for a driver’s license or when registering at school. The Social Security Administration can replace lost or stolen Social Security cards within a matter of weeks after the application is processed.


  1. Social Security cards can be replaced a maximum of three times in a calendar year and no more than 10 times during your life.
  2. Print and complete Form SS-5, the application for a Social Security card (see Resources). Do not forget to fill in the form using your child’s information.
  3. Gather the documents that prove your child’s identity and citizenship status. Acceptable proofs of identity include an adoption decree, medical record, school record, religious record (such as baptism) or school identification card. Acceptable proof of citizenship includes a United States birth and passport certificate, Certificate of Naturalization or Certificate of Citizenship.
  4. Gather the documents that prove your own identity, such as a driver’s license from the United States, a state identification card or a US passport. All forms of identification must be up to date. If you cannot provide any of these, school ID cards, employee ID cards, US Military ID cards and Medicare health insurance cards are also acceptable.
  5. Visit your local Social Security Administration office to submit the completed application and proof of identity and citizenship (see Resources for the SSA office locator). You can also send the application and other documents to your local Social Security office; Once the application is processed, proof of identity and citizenship will be returned to you.