Utility Occupation Tax | City of Mill Creek

New Utility Occupation Tax Effective June 1, 2026

Mill Creek City Council has adopted a new Utility Occupation Tax applicable to public utility providers operating within the city limits. This initiative has been adopted in accordance with Municipal Code Chapter 3.14 and approved by the City Council via Ordinance No. 2025-939 on November 11, 2025.

New Tax Rate

Effective June 1, 2026, the utility occupation tax rate for electricity, natural or manufactured gas, water, sewerage, solid waste, telephone, cellular telephone and cable business activities shall be 5.00% of gross income. This applies to all taxable revenues derived from customers located within the City of Mill Creek.

City of Mill Creek Utility Occupation Tax Return Form

The tax remittance is due in monthly installments with a Utility Tax Return form by the 25th of the following month.

Utility Occupation Tax Return Form

For more information, please contact finance@millcreekwa.gov