- the department of the U.S. federal government that collects revenue and administers the national finances. Abbreviation: TD
A department of the federal executive branch; it includes the Internal Revenue Service (see also Internal Revenue Service) (IRS). The Department of the Treasury has general responsibility for setting federal fiscal policy by collecting taxes and customs duties, administering the public debt, keeping all government accounts, minting currency, and licensing ships engaged in international and interstate commerce. The Department of the Treasury administers the Secret Service.