Vehicle expenses are usually the biggest deduction for contractors. You can use actual expenses (gas, maintenance, insurance, depreciation) or the standard mileage rate. Actual expense method typically saves more if you drive a truck primarily for business. Track every business mile because the IRS will ask for documentation if audited.

Tools and equipment under $2,500 can be expensed immediately. Larger equipment gets depreciated over time or you can use Section 179 to deduct the full amount in the year purchased up to certain limits. This includes trucks, trailers, compressors, generators, saws, and specialty equipment. Depreciation strategy matters because timing the deduction right can significantly lower your tax bill.

Insurance premiums for general liability, workers’ comp, commercial auto, and tools coverage are fully deductible. So are licensing and permit fees, association dues, and continuing education costs for maintaining licenses or certifications.

Home office deduction works if you have a dedicated space used exclusively for business. The simplified method gives you $5 per square foot up to 300 square feet. The actual expense method can save more if your home office is large or you have high housing costs, but requires more documentation.

Subcontractor payments are deductible when you issue 1099s properly. Materials you purchase for jobs are cost of goods sold, not operating expenses, but they still reduce your taxable income. The distinction matters for how they show up on your return.

Phone and internet get deducted if used for business. If you use your personal phone, you can deduct the business portion. Marketing costs including website, advertising, vehicle wraps, and business cards are fully deductible.

Meals with clients or while traveling for work are 50% deductible. Meals for your crew on job sites don’t qualify unless it’s an overnight job requiring travel. Job site supplies like tarps, tape, and consumables are deductible as supplies expense.

Interest on business loans including equipment financing and vehicle loans is deductible. Legal and professional fees for business matters including accounting and bookkeeping are deductible operating expenses.

The mistake most contractors make is not tracking deductible expenses throughout the year. You remember the big equipment purchase but forget the $800 in small tool purchases, the mileage to suppliers, or the client lunches. By tax time, you’ve lost thousands in deductions because you have no records.

Tax preparation for contractors should include someone reviewing your expenses quarterly to make sure you’re capturing everything. Waiting until April means missed deductions because you don’t remember what happened eight months ago and don’t have documentation.

Construction businesses have specific deductions other businesses don’t think about. Safety equipment, bond premiums, job site trailers, and porta-potty rental all count. A good accountant familiar with contractor deductions finds things you didn’t know were deductible and saves you more than their fee costs.