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Internal Revenue Service
IRS
Logo of the Internal Revenue Service.svg
Agency overview
FormedJuly 1, 1862; 159 years ago (though the name originates from 1918)
TypeRevenue service
JurisdictionFederal government of the United States
HeadquartersInternal Revenue Service Building
1111 Constitution Ave., NW
Washington, D.C. 20224
United States
Employees74,454 (FTE) (2019)
Annual budget$11.303 billion (2019)
Agency executive
Parent agencyDepartment of the Treasury
Websitewww.irs.gov