Internal Revenue Service (IRS)
The Internal Revenue Service (IRS) administers and enforces U.S. federal tax laws.
Website
Internal Revenue Service (IRS)Phone number
1-202-622-5000
Toll-free number
1-800-829-1040
TTY
1-800-829-4059
Find an office near you
Find a taxpayer assistance center near youMain address
1111 Constitution Ave. NWWashington, DC 20224
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