Pest control businesses have a long list of deductible expenses. The challenge isn’t finding deductions. It’s making sure you track them all and categorize them correctly so nothing gets missed at tax time.

Chemicals and materials are your most obvious operating cost. Pesticides, herbicides, rodenticides, bait stations, traps, and any product you apply or install at a customer’s property are deductible. These are direct costs of providing your service, and they should be tracked as cost of goods sold or materials depending on how your books are set up.

Vehicle expenses add up fast in pest control since you’re driving from job to job all day. You can deduct these using the standard mileage rate or the actual expense method. The mileage method is simpler but requires a mileage log. The actual method lets you deduct gas, maintenance, repairs, tires, insurance, and depreciation on the vehicle, but only the business-use percentage. Pick one method and stick with it. Either way, keep a log. The IRS is known to scrutinize vehicle deductions.

Equipment is a big one. Sprayers, tanks, foggers, and backpack applicators are not simple supplies. They have a useful life beyond one year, which means they should be capitalized. You can either depreciate them over time or take a Section 179 deduction to write off the full cost in the year you buy them. Your accountant can help you decide which approach makes more sense based on your tax situation, but either way these purchases need to be recorded correctly in your books.

Licensing and continuing education are fully deductible. Wisconsin requires pest applicator certification and ongoing training to maintain it. Exam fees, renewal costs, CEU courses, and any travel to attend required training all count. These are costs of staying legal in your trade.

Uniforms and protective gear are deductible. Work shirts with your logo, boots, gloves, respirators, safety glasses, and any PPE your technicians need on the job. If you’re laundering uniforms through a service, that cost is deductible too.

Insurance premiums are deductible across the board. General liability, commercial auto, workers’ comp, and any professional liability coverage you carry. Pest control businesses often pay higher liability premiums because of the chemicals involved, so this is a meaningful deduction.

Office and administrative expenses round things out. Your phone bill, scheduling software, CRM, website hosting, marketing, business cards, and office supplies all count. If you work from a home office, you may be able to deduct a portion of your rent or mortgage, utilities, and internet based on the square footage you use exclusively for business.

Don’t forget professional services. What you pay your Dodge County bookkeepers, your accountant, or your attorney is deductible. So are payroll processing fees and any business consulting.

The deductions only work if you can prove them. Use a dedicated business bank account and credit card so every transaction is documented. Categorize expenses consistently each month so your year-end numbers are reliable. Most pest control owners who miss deductions don’t miss them because the deductions don’t exist. They miss them because the expenses weren’t tracked or were lumped into a generic category that nobody reviewed.

If you want your books set up to capture all of this properly, working with someone who understands home and property service businesses makes a real difference. The categories and tracking methods for pest control are specific enough that a generic setup will leave money on the table.