How to start a lawn care business in Iowa: taxed mowing, untaxed plowing and spray rules

Iowa gives a lawn care company an unusual split. Summer work is taxable and winter work is not. Spraying brings a license, a bond or insurance, and a sign rule that changed on January 1, 2026. This page covers what is different in Iowa. For equipment, route building and pricing, read the main lawn care startup guide. For formation and annual filings, see our Iowa startup page.

Lawn care is taxable and snow removal is not

The Iowa Department of Revenue says taxable lawn care includes mowing, trimming, watering, fertilizing, reseeding, re-sodding, and treating insects, moles, vermin, weeds or fungi that threaten a lawn. It adds that it does not matter whether the bill is itemized or a lump-sum charge. Read together with Iowa's landscaping guidance, these points affect how you set up your books:

• Landscaping. Hourly or other landscaping labor is taxable, and under a lump-sum landscaping contract that includes materials, the entire gross receipts are subject to tax. Construction-type work, such as erecting retaining walls, is generally treated as construction contracting, and the invoice must state those charges separately from landscaping charges.
• Chemicals and fertilizer. You are not required to buy supplies for resale. If you itemize resold chemicals or fertilizer on the invoice, you show the amount, cost and product type. If you do not, tax applies to the entire bill, and tax you paid at the supplier does not reduce what you owe.
• Tree work. Trimming and removing any part of a tree, including stumps, is a taxable service. Firewood you sell from the job is a sale of tangible property.
• Snow removal. Plowing, sanding or salting roads, sidewalks and parking lots is not a taxable service, whether charged per hour or per unit. The salt, sand and brine are taxable property, so you owe tax on your purchases, and plows and shovels are taxable property too.

A mow-and-plow company therefore charges tax on its summer invoices and none on winter plowing. Keep the two on separate price lists and separate lines. A sales tax permit from the Department of Revenue comes before the first taxable invoice. Our sales tax on services guide covers the general method, and the mowing pricing guide helps you build tax into quotes.

Applying pesticides for hire needs a license, certification and money behind it

Iowa Code section 206.6 says no person may engage in the business of applying pesticides to the lands or property of another without a license from the Secretary of Agriculture. The annual license fee is not more than $25. Before the Department issues a license, the person running the business and each employee who applies pesticides must pass an examination in the classifications they will use. Section 206.5 sets the commercial applicator certification fee at $75 for three years.

For lawn companies, Iowa's rules put turf and ornamental work in Category 3, "Ornamental and turf pest control." It has four subcategories: ornamental and turf, turf only, ornamental only, and greenhouse pest control, each with its own exam. The Department's rule, effective January 1, 2026, sets the renewal cycle:

• Certification lasts three years and expires December 31 of the third year. The license classification expires each December 31.
• To renew certification you pass the exam again or complete two hours of approved instruction in each year of the cycle. Anyone who misses the two hours in a year must pass an exam before recertifying.
• Applicators must be at least 18.

Section 206.13 requires evidence of financial responsibility before the Department issues a commercial applicator's license. It can be a surety bond, a liability insurance policy or an irrevocable letter of credit. The amount is not less than $100,000 each for property damage and public liability, or liability insurance with limits of $100,000 per occurrence and $300,000 annual aggregate. The Department must be notified ten days before a reduction or cancellation of a bond or policy.

New hires get a short runway. Under section 206.5, a commercial applicator is not required to be certified for 21 days from initial employment if working under direct supervision, meaning a competent person acting under the instructions and control of a certified applicator who is physically present, in sight or hearing distance. Plan your hiring and exam dates around that window. Note that the Department also expects the person running the business and employed to apply to be certified before the business license issues, so a one-person startup takes the exam before it sells a spray program.

Signs and neighbor notice under rule 21-45.50

Iowa Administrative Code rule 21-45.50, effective January 1, 2026, applies to commercial and public applicators working in urban areas, meaning any area within or belonging to a city or developed residential area. Applications inside a structure or within six feet of its outside perimeter are exempt, as are applications by a homeowner or tenant on their own property.

Signs go up at the start of the application and stay at least 24 hours, or longer if the label's reentry directions require it. For residential lawns the sign must project at least 12 inches above the grass line, or its top must be at least 18 inches high. Place it on the lawn two to five feet from the sidewalk or street, and for open backyards two to five feet from the back lot line. Lawn signs are at least 4 by 5 inches with lettering at least 3/8 inch. Each carries your name and telephone number and the warning "This area chemically treated. Keep off. Do not remove sign for twenty-four hours," or an approved universal symbol.

Neighbor notice depends on a request. Iowa Code section 206.19 says the rules must require notice only when an occupant asks for it in a timely way. An adjoining occupant asks in writing, with a name, address, a phone number for business and evening hours, and the address of each adjoining property. You give notice at least the calendar day before, in writing, in person or by phone, with the date and approximate time. If you cannot reach the occupant you leave written notice at the residence. Requests expire on December 31 each year, or when the occupant leaves, whichever comes first. If the notice is not in writing, you document it and keep the record at your place of business. A municipality may keep its own registry as an alternative for its public programs.

For the office, that means one standard sign, one notice script and one list of open neighbor requests per route. A custom CRM can store the list and flag the properties on tomorrow's route.

Contractor registration and workers' compensation

Iowa registers construction contractors with the Department of Inspections, Appeals, and Licensing. A person who earns less than $2,000 a year from construction is not a contractor under Code section 91C.1, and the definition of construction comes from the rules for Iowa's employment security law. DIAL calls the construction definition very broad, and the rule it points to (871 IAC 23.82) lists examples that include lawn sprinkler system installation, land clearing and other land preparation. That list does not name mowing, lawn spraying, tree trimming or snow removal, but it is not exhaustive and it follows the federal industry classification manual, so DIAL has not told us in writing that lawn care is outside it. Ask DIAL (Contractor Registration, 515-242-5871) before you register or skip registering, especially if you install irrigation, retaining walls or patios. Our Iowa contractor licenses guide covers the registration route.

Workers' compensation: Iowa Code section 87.1 requires subject employers to insure their liability, and section 85.1A lets a sole proprietor, LLC member or partner who works in the business full time elect coverage on themselves. If you register as a contractor, the application asks about coverage, so decide before you apply.

Season and first steps

The mowing season runs roughly April through October, and blizzards make plowing and sidewalk clearing steady work from December into March. Because snow work is untaxed and summer lawn work is taxed, many Iowa crews run both to keep employees on payroll all year.

1. Form your entity and file your Iowa biennial report on schedule, using our Iowa page.
2. Get a sales tax permit from the Department of Revenue before your first taxable invoice.
3. If you will spray, schedule the exam, line up a bond or liability policy at the Section 206.13 amounts, and apply for the license.
4. Build invoices that separate mowing, landscaping, construction, tree work and snow removal.
5. Write a website page for each town you serve. See our lawn care SEO guide.

Verify with the state

This page gives general information current to October 2026 and is not legal or tax advice. Iowa Department of Agriculture and Land Stewardship staff can confirm current categories, exams and forms.

Frequently asked questions