Mobile Dog Grooming Permit Requirements in Seattle, WA

1. EIN (Employer Identification Number)

   Required if you have employees or operate as an LLC/corporation. Free from the IRS, obtained instantly online.

   Official government source

   Free·Immediate (online application)

   Free

   Immediate (online application)

1. Washington State Business License

   Required for all businesses in Washington. Issued by the Department of Revenue. Registers the business for state B&O tax — grooming services fall under the service and other activities classification.

   Official government source

   $50 (one-time Business License Application fee; $5/year renewal per location)·1–2 weeks

   $50 (one-time Business License Application fee; $5/year renewal per location)

   1–2 weeks

2. Commercial Vehicle Registration

   Whether a mobile grooming vehicle must be registered under Washington's commercial-vehicle category rather than standard vehicle registration depends on its gross weight and how it is used. DOL registers intrastate commercial vehicles; vehicles crossing state lines also need a USDOT number. Confirm your classification and current fees with DOL before assuming commercial registration applies.

   Official government source

   Varies by weight class and registration category; DOL does not publish a single flat rate. Confirm with DOL.·Same day at licensing office

   Varies by weight class and registration category; DOL does not publish a single flat rate. Confirm with DOL.

   Same day at licensing office

3. WA Dept of Agriculture Pesticide License (if applicable)

   If your grooming services include applying flea or tick treatments or other pest control chemicals, you may need pesticide licensing from the Washington State Department of Agriculture: a Commercial Applicator licence for the business and a Commercial Operator licence for each employee who applies. Licensing requires passing the Laws & Safety exam plus a category exam and showing financial responsibility. Confirm with WSDA whether the specific products you use trigger licensing.

   Official government source

   $250/year Commercial Applicator licence (first apparatus free, $27 for each additional apparatus) and $85/year per Commercial Operator. Financial responsibility is also required: liability insurance of $50,000 public liability and $50,000 property damage with a deductible no higher than $5,000, or a surety bond of at least $100,000.·2–4 weeks

   $250/year Commercial Applicator licence (first apparatus free, $27 for each additional apparatus) and $85/year per Commercial Operator. Financial responsibility is also required: liability insurance of $50,000 public liability and $50,000 property damage with a deductible no higher than $5,000, or a surety bond of at least $100,000.

   2–4 weeks

1. Seattle Business License Tax Certificate

   Required for all businesses operating within Seattle. Issued by City of Seattle Finance and Administrative Services. Mobile groomers serving Seattle clients must hold a current certificate.

   Official government source

   $73/year if your Seattle taxable revenue is under $20,000, $147 for $20,000-$499,999.99, $667 for $500,000-$1,999,999.99, $1,604 for $2 million-$5 million, and $3,210 for more than $5 million (2026 fee schedule), plus $10 per branch location. Businesses that start July 1 or later pay half the first-year fee.·You can usually print the certificate within 2-3 business days after your payment processes.

   $73/year if your Seattle taxable revenue is under $20,000, $147 for $20,000-$499,999.99, $667 for $500,000-$1,999,999.99, $1,604 for $2 million-$5 million, and $3,210 for more than $5 million (2026 fee schedule), plus $10 per branch location. Businesses that start July 1 or later pay half the first-year fee.

   You can usually print the certificate within 2-3 business days after your payment processes.

2. King County Public Health Pet Business Permit (Mobile Pet Grooming)

   King County Public Health's Pet Business Program requires mobile pet grooming facilities to hold an operating permit, alongside standards for water supply, wastewater disposal, and electrical safety. Plans must be reviewed before new construction or remodelling. Contact [email protected] for current requirements.

   Official government source

   $281 per year for a Pet Mobile Grooming Service operating permit (2026 rate; a fixed-location Pet Grooming Service is also $281, and a commercial kennel or pet daycare is $506). Plan review is $225 plus $225 an hour for each hour over one.·Varies

   $281 per year for a Pet Mobile Grooming Service operating permit (2026 rate; a fixed-location Pet Grooming Service is also $281, and a commercial kennel or pet daycare is $506). Plan review is $225 plus $225 an hour for each hour over one.

   Varies

Official Sources

• City of Seattle: Business License Tax Certificate
• Washington DOR: Apply for a Business License
• WA Dept of Licensing: Vehicle Registration

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