IRS Internal Revenue Service The Internal Revenue Service (IRS) is the revenue service of the United States federal government. The IRS is responsible for collecting taxes and the interpretation and enforcement of the IRC (Internal Revenue Code).
The IRS has its National Capital offices in the greater Washington, D.C. area, and in particular does most of its computer programming in Maryland.
The IRS currently operates several service centers around the country that handle the actual tax processing. The IRS also operates three computer centers in various locations around the country.
Click here to visit the IRS Website.