Washington Tax Power of Attorney (Form REV-27-0060)

The Washington Tax Power of Attorney (Form REV-27-0060) exists so that taxpayers can authorize the Washington State Department of Revenue to share confidential tax information with a third party—of whom may either be an individual or a company. The taxpayer may either request the Department to send the information via a secure message system or regular email or fax. The considerations the taxpayer should keep in mind when deciding which means of communication to opt for are outlined below.


Additional Requirements

It is the taxpayer’s decision which means of communication they would like the Department to use to contact them and the third party. To help make their decision, they should keep the following considerations in mind:

  • Secure message system: Recommended by the Department, this system can be accessed through the Department’s online My DOR section. In order to access it, the taxpayer and the third party will be required to register, or
  • Regular email and fax: The taxpayer may indicate their consent for this option in section 3 of the form. As it is relatively less secure, the Department warns taxpayers that they must accept full responsibility if such avenues are intercepted by unauthorized parties.

State Laws & Signing Requirements

State Laws – Uniform Power of Attorney Act

Signing Requirements – The Washington State Department of Revenue mandates that the taxpayer must sign Form TD-420-050 in order for it to be filed by the Department.