How to Start a Landscaping Business in Washington (2026)

Last updated: February 25, 2026

Washington’s mild western climate and distinct seasons create year-round demand for landscaping services – from lawn maintenance and garden design to hardscaping and irrigation. There’s no statewide landscaping license, but if you apply pesticides commercially, you’ll need a Commercial Applicator license from WSDA (Washington State Department of Agriculture). Certain hardscaping and irrigation work may trigger L&I contractor registration requirements. Washington’s no income tax makes it especially attractive for service businesses with high labor costs.

Landscaping Business Requirements in Washington at a Glance

Requirement	Agency	Cost	Timeline
LLC Formation	Secretary of State	$200	7-10 business days
State Business License (UBI)	DOR	~$50	~10 business days
Commercial Pesticide Applicator License	WSDA	Exam + license fees	If applying pesticides commercially
Contractor Registration (if applicable)	L&I	Registration fee + bond	If doing hardscaping/construction
Workers’ Compensation Insurance	L&I (state fund)	Varies by classification	Before hiring employees
General Liability Insurance	Private Carrier	$500-$2,000/year	Before starting operations
Federal EIN	IRS	Free	Immediate (online)

How to Start a Landscaping Business in Washington (Step by Step)

Step 1: Form Your Business Entity

Register an LLC with the Secretary of State ($200 online). Get your UBI number from DOR. Apply for a free EIN from the IRS.

Step 2: Get a Pesticide Applicator License (If Applying Pesticides)

If your landscaping business applies pesticides, herbicides, or fertilizers with pest control claims to clients’ property, you need a Commercial Applicator license from the Washington State Department of Agriculture (WSDA).

Requirements:

Pass the Laws & Safety exam plus category-specific exams for your areas of work (e.g., ornamental, turf, right-of-way)
The license decision-maker for the company must hold the license
Financial coverage: Either liability insurance ($50,000 public liability, $50,000 property damage, max $5,000 deductible) OR a surety bond of at least $100,000

Pre-license education is available through Washington State University’s Pesticide Education Program. Contact WSDA at 877-301-4555 or license@agr.wa.gov.

Step 3: Register as a Contractor (If Doing Construction Work)

Basic mowing, pruning, and garden maintenance do not require contractor registration. However, if your landscaping business does hardscaping (patios, retaining walls, driveways), irrigation system installation, or other construction-related work, you may need to register as a contractor with L&I. Requirements include:

$15,000 surety bond (specialty contractor)
General liability insurance ($200K public/$50K property or $250K combined)
Active L&I workers’ comp account

Step 4: Get Insurance Coverage

General liability insurance is essential – it covers property damage, injuries, and accidents on client properties. Most commercial clients require proof of coverage. Workers’ compensation through L&I is mandatory for any employees. Consider commercial auto insurance for trucks and trailers, and equipment coverage for mowers and tools.

Step 5: Register for Taxes

B&O Tax: Landscaping services generally fall under Retailing B&O tax at 0.471% of gross receipts.

Sales Tax: Landscaping services (mowing, pruning, planting, etc.) are generally subject to retail sales tax in Washington. Collect and remit at the combined state (6.5%) and local rate for your service area.

Step 6: Get Equipment

Essential startup equipment: commercial mower(s), string trimmers, blowers, edgers, hand tools, a truck, and a trailer. Budget $5,000-$20,000 to start, depending on whether you buy new or used.

Cost to Start a Landscaping Business in Washington

Item	Cost	Notes
LLC Certificate of Formation	$200	One-time SOS filing fee
Annual Report	$70/year	Due annually
State Business License (UBI)	~$50	Processing fee
Commercial Pesticide License	Exam + license fees	Only if applying pesticides
Pesticide insurance/bond	$500-$2,000/year	$50K/$50K liability or $100K bond
General liability insurance	$500-$2,000/year	$1M/$2M recommended
Contractor registration (if applicable)	Fee + $15K bond premium	For hardscaping/construction
Equipment (mowers, trimmers, etc.)	$5,000-$20,000	Used vs. new
Truck and trailer	$10,000-$30,000	Used pickup + open trailer
Marketing & signage	$500-$2,000	Vehicle wraps, cards, website

Estimated total startup cost: $17,000-$56,500 (basic mowing/maintenance operation with used equipment and truck)

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Frequently Asked Questions

Do I need a license to start a landscaping business in Washington?

No statewide landscaping license is required for basic maintenance. However, if you apply pesticides commercially, you need a WSDA Commercial Applicator license. If you do hardscaping or irrigation construction, you may need to register as a contractor with L&I.

Do I need a pesticide license for landscaping in Washington?

Yes, if you apply pesticides to clients’ property. Get a Commercial Applicator license from WSDA by passing the Laws & Safety exam plus category exams. You also need either liability insurance ($50K/$50K) or a $100,000 surety bond.

Are landscaping services subject to sales tax in Washington?

Yes. Landscaping services are generally subject to retail sales tax at the combined state (6.5%) and local rate. B&O tax also applies at the retailing rate (0.471%).

Do I need contractor registration for landscaping in Washington?

Only for construction-related work. Basic mowing, pruning, and garden maintenance don’t require it. Hardscaping, retaining walls, and irrigation installation may require L&I contractor registration ($15,000 bond + insurance).

Do I need workers’ compensation for landscaping employees in Washington?

Yes. Workers’ comp through L&I is mandatory for all employers with one or more employees. Washington uses a monopolistic state fund.

How much does it cost to start a landscaping business in Washington?

A basic mowing and maintenance operation can start for around $17,000-$56,500, with the truck/trailer ($10,000-$30,000) and equipment ($5,000-$20,000) being the largest expenses.

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About the Author

Robert Smith has run a licensed private investigation firm for 8 years from the Florida-Georgia state line - where he learned firsthand how wildly business licensing rules differ between states just miles apart. He personally researched requirements across all 50 states and D.C., reviewing hundreds of government sources over hundreds of hours to build guides he wished existed when he started. Not a lawyer or accountant - just a business owner who has done the research so you don't have to.

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