Internal Revenue Service - IRS

Organization URL(s)

Other Contact Information

1111 Constitution Ave., NW
Washington, DC 20224
1-800-829-1040 (Voice - Toll-free)
1-800-829-4059 (Voice - TDD)


The IRS is the largest agency in the Department of the Treasury and services America's taxpayers by helping them understand and meet their tax responsibilities and enforce the law with integrity and fairness to all.

Online Resources

Print Resources

Review Date

Saturday, Dec 11, 2010