The United States government agency that collects taxes and enforces the internal revenue laws
governmental department which deals with the collection of income taxes and taxes on domestic goods
the IRS. Agency of the U.S. Department of the Treasury charged with administering and enforcing federal tax laws, except those relating to alcohol, tobacco, firearms, and explosives. It issues rulings and regulations to supplement the provisions of the Internal Revenue Code; determines, assesses, and collects internal revenue taxes; and determines exempt organization status