Internal Revenue Service’s headquarters is in 1111 Constitution Ave NW Washington District of Columbia 20224, United States

Internal Revenue Service’s phone number is (202)-622-5000

Internal Revenue Service’s official website is irs.gov

Internal Revenue Service’s revenue is $1+ Billion

Internal Revenue Service’s SIC code is 9199

Internal Revenue Service’s NAICS code is 921190

Internal Revenue Service is in the industry: Government Administration

Internal Revenue Service has 10,001 employees

Internal Revenue Service uses these technologies: jQuery, Google API, Google Analytics, PHP, Apache HTTP Server, Akamai CDN