When am I legally required to give my Social Security number? (online only)
April 2010
By Social Security Administration
Most places that ask for your Social Security number may
not really require it, but some may refuse you a service if you don’t give
it. If asked for your number, you should ask why it’s needed and how it
will be used. You also can ask what law requires you to give it and what
the consequences are if you refuse. State agencies, for example, may be
required by law to collect your number. For more detailed information, we
recommend the publication Your Social
Security Number And Card at www.socialsecurity.gov/pubs/10002.html. You
also can visit Social Security’s website at www.socialsecurity.gov
or call us toll-free at 1-800-772-1213 (TTY 1-800-325-0778). Also, be
sure to keep your Social Security card in a safe place at home with your
important papers—not in your purse or wallet.