Pet Sitting Business Permit Requirements in Seattle, WA

Complete permit and license guide for starting a pet sitting business in Seattle, King County, Washington.

$200 -- $600 2–4 weeks for in-home visiting pet sitting; up to 6 weeks if boarding from home 6 requirements

Not legal advice. Requirements may change — always verify with your local government authority before applying. Last verified: February 15, 2026.

Seattle / King County Requirements

3 requirements

Seattle Business License Tax Certificate

All businesses operating in Seattle, including pet sitting businesses, must obtain a Business License Tax Certificate from the City of Seattle Finance Department. Pet sitters who visit clients' homes and those who board pets at their own location both need this certificate. Renewed annually.

$110–$2,000/year (based on gross receipts tier; minimum $110 for new businesses)1–2 weeks

Official government source

Washington State Business License (UBI)

All Washington businesses must obtain a state Business License (UBI number). Pet sitting businesses register with the Washington Department of Revenue online.

$90 (initial application)1–2 weeks

Official government source

King County Animal Control — Kennel License (for boarding)

If you board clients' pets at your home or a commercial facility in King County, a kennel license from King County Animal Control may be required. Requirements depend on the number of animals and whether you are in Seattle or unincorporated King County. Contact King County Animal Control for current requirements.

$50–$300/year2–4 weeks (may require inspection)

Official government source

Washington State Requirements

2 requirements

Washington — No State Pet Sitter License

Washington State does not require a state license for pet sitting services. In-home pet sitters who visit clients' homes are lightly regulated. Local county kennel regulations apply to boarding operations.

No state feeN/A

Official government source

Washington Sales Tax (if selling products or taxable services)

Pet sitting services may be subject to Washington's B&O tax (Business and Occupation tax) at the service rate. If you sell pet products, collect retail sales tax. King County combined rate is approximately 10.25%.

Included in state business licenseIncluded with state business license

Official government source