U.S. federal government telephone numbers

Note: These telephone numbers are current as of the date of this publication.

If you have questions about federal tax or Social Security regulations, you can contact either the Internal Revenue Service (IRS) or the Social Security Administration (SSA) by telephone. To contact the IRS or SSA, use these telephone numbers:

IRS Information Reporting Program Call Site: 1-866-455-7438 (Toll Free Number)
Use this telephone number if you have tax questions or questions on tax law and regulations (including questions on how to calculate the amounts you need to report).
SSA Employer Reporting Service Center: 1-800-772-6270 Weekdays from 7:00 a.m. to 7:00 p.m. (Eastern Time)
Use this telephone number if you have questions about SSA and IRS reconciliations of W-2 data, Medicare reporting error notices, or electronic filing.