Internal Revenue Service Building
U.S. Historic district Contributing property
Internal Revenue Service Building in 2008
Location	1111 Constitution Avenue, Northwest Washington, D.C., U.S.
Coordinates	38°53′36″N 77°1′37″W / 38.89333°N 77.02694°W / 38.89333; -77.02694
Built	1936
Architect	Office of the Supervising Architect
Architectural style	Classical Revival
Part of	Pennsylvania Avenue National Historic Site (ID66000865[1])

Internal Revenue Service Building
Internal Revenue Service Building
General information
Architectural style	Classical Revival
Location	Washington, D.C.
Town or city	Washington, D.C.
Country	The United States of America
Owner	United States Government
Technical details
Floor count	7
Lifts/elevators	17
Design and construction
Architect(s)	Louis A. Simon

The Internal Revenue Service Building is a federal building which serves as the headquarters of the Internal Revenue Service. It is located at 1111 Constitution Avenue, Northwest, Washington, D.C. (corner of 12th Street), in the Federal Triangle.

Building history

It was designed by architects and engineers in the Office of the Supervising Architect under Louis A. Simon, and built from 1928 to 1936.^[2] The cornerstone was laid in 1929 by Treasury Secretary Andrew W. Mellon.^[3] The building was opened for use in 1930, 16 months ahead of the planned completion date, making it the first Federal Triangle building to be opened.^[4]

The building was designated by Congress as a contributing structure to the Pennsylvania Avenue National Historic Site in 1966, and it was subsequently listed in the National Register of Historic Places.

The Internal Revenue Service building bears writing from Justice Oliver Wendell Holmes, Jr. (1841-1935), "Taxes are the price we pay for a civilized society."