Washington Department of Revenue

Mar 28, 2025

Access the Washington Department of Revenue here.

The Washington Department of Revenue is the state agency responsible for administering and enforcing tax laws in the state of Washington. They work to ensure compliance with state tax regulations and provide resources and support to taxpayers to help them understand and fulfill their tax obligations.

Agency Accounts

Washington Unified Business Identifier (UBI)

Access your online accounts:

The Washington Unified Business Identifier (UBI) allows you to set up and manage the following information:

  • Unified Business Identifier (UBI)

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