Contact the Department by e-mail.
For immediate assistance, call us at 1-800-647-7706.
Hours: Monday, Tuesday, Thursday, and Friday from 8 a.m. - 5 p.m. and Wednesday from 9 a.m. - 5 p.m. Closed on holidays.
Revenue telephone directory – Locate telephone numbers for specific Revenue taxes and programs.
Business Licensing Service – If you need assistance with business licensing and renewals, call the Business Licensing Service at 1-800-451-7985.
State government telephone directory – Find telephone numbers for state agencies, educational institutions, local government organizations and state employees.
Teletype (TTY) – Dial 711 to connect with Washington Relay, a free service provided by the Washington State Office of the Deaf and Hard of Hearing (ODHH).
All offices are closed on holidays.
Use this address list to ensure your form or letter gets to the right place.
NOTE: The state of Washington does not have a personal or corporate income tax. For federal income tax information and forms, contact the Internal Revenue Service (IRS).
Additionally, we cannot answer questions related to city or county business taxes. Contact the appropriate city or county regarding those taxes