If your household employee is a U.S. citizen and does not have a Social Security number, he or she can get one by filling out Form SS-5 and sending it to the local Social Security Administration office. You will need your household employee's Social Security number to report income and tax information to the IRS and SSA. A copy of Form SS-5 is included with the NannyPay software. You can also get Form SS-5 at any SSA office or by calling 1-800-772-1213.