Internal Revenue Service Building | |
 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 |
| 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.