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Businesses - Apply for a tax refund

Registered businesses

If you are a registered business and you believe you have overpaid taxes, penalties, or interest, you may request a refund directly from the department by:

The following information must be included with your refund request:

  • Name and account ID.
  • Amount of the refund.
  • Tax type and taxable period.
  • Explanation.
  • Signature.

Note: A refund or credit cannot be made if the overpayment was originally received more than four years before the start of the current calendar year.

Mail your request to:

Attn: Refunds
Washington State Department of Revenue
PO Box 47476
Olympia, WA 98504-7476