Applying for your baby’s Social Security number may be the last thing on your mind, but the Social Security Administration recommends it at birth. It is voluntary, free and will allow you to claim your child as a dependent on your income tax return, obtain medical coverage for her, buy savings bonds in her name and open a bank account for her. You can apply at the same time you apply for your baby’s birth certificate or apply later at a Social Security office.

 

Source:
“Social Security Numbers For Children,” http://www.ssa.gov/pubs/10023.html