The U.S. Department of the Treasury lists several ways of contacting its different divisions and bureaus on the Contact Us page of its website, Tresury.gov. A mailing address and a telephone number for general inquiries is listed, and the page also provides contact information for specific types of inquiries.
The website lists hotlines and toll-free phone numbers for information related to avoiding foreclosure and reporting fraud, abuse or suspected scams. Contact information for the Internal Revenue Service, the U.S. Mint and each of the Treasury bureaus is also available. A link allows website visitors to send messages to the Secretary of Treasury.