21 Tax Deductions Every Contractor Should Know (2026 Guide)

As a contractor, you're likely overpaying on taxes. These 21 deductions can save you thousands every year — and most contractors miss at least half of them.

Vehicle Expenses (#1 Biggest Deduction)

You have two options:

Standard mileage rate (2026): $0.70 per mile for business driving. If you drive 20,000 business miles per year, that's a $14,000 deduction.

Actual expenses: Deduct the business percentage of gas, insurance, maintenance, repairs, depreciation, and loan interest. Often better than standard mileage for contractors with dedicated work trucks.

Track every mile. The IRS requires documentation. Use your contractor app's route planning feature — it logs every trip between job sites automatically.

Tools and Equipment

Every tool you buy for work is deductible:

• Power tools (drills, saws, compressors)
• Hand tools (wrenches, pliers, measuring tools)
• Safety equipment (boots, glasses, hard hats, gloves)
• Specialty tools for your trade
• Tool replacement and repair

Section 179: Equipment under $1,220,000 can be deducted in full in the year purchased (not depreciated). That $4,000 pressure washer is an immediate write-off.

Business Insurance

All business insurance premiums are deductible:

• General liability insurance
• Workers' compensation insurance
• Commercial auto insurance
• Professional liability / E&O insurance
• Inland marine (tools and equipment)
• Umbrella policies

Software and Subscriptions

Your contractor app subscription is deductible:

• thecontractor.app ($0-12.99/month) — business management
• QuickBooks or other accounting software
• Design software (Canva, etc.)
• Phone plan (business percentage)
• Internet (business percentage)

Home Office

If you use a dedicated space in your home for business:

• Simplified method: $5 per square foot, up to 300 sq ft = $1,500 max
• Regular method: Percentage of rent/mortgage, utilities, insurance based on office square footage

Materials and Supplies

Everything you buy for jobs:

• Paint, concrete, lumber, pipe, wire
• Consumables (tape, sandpaper, chemicals, fasteners)
• Job-specific materials billed to customers (you deduct the cost, invoice the customer)

Subcontractor Payments

Every payment to subcontractors is deductible. Issue 1099s to subs paid $600+ in a year.

Marketing and Advertising

• Business cards, door hangers, flyers
• Vehicle wrap/lettering
• Website hosting
• Online advertising (Google, Facebook)
• Uniforms and branded apparel
• Sponsorships and donations

Professional Services

• Accountant/bookkeeper fees
• Attorney fees (business-related)
• Licensing and permit fees
• Continuing education and certifications
• Professional association dues

Other Commonly Missed Deductions

• Fuel and tolls (separate from vehicle mileage)
• Parking at supply stores and job sites
• Meals — 50% deductible when traveling for work or meeting clients
• Bank and credit card fees on business accounts
• Interest on business loans and credit cards
• Bad debts — customers who never pay invoices you've already reported as income
• Retirement contributions — SEP IRA lets you deduct up to 25% of net self-employment income
• Health insurance premiums — 100% deductible for self-employed
• Cell phone — business percentage

How to Track Deductions

The biggest mistake contractors make: not tracking expenses consistently. A $50 receipt you throw away is $50 you overpay on taxes.

Use thecontractor.app's expense tracking — snap a photo of every receipt, categorize it to a job, and have tax-ready records when April comes. No shoeboxes, no missing receipts, no scrambling at tax time.

Bottom Line

A typical contractor with $150K revenue and proper deduction tracking pays $5,000-10,000 LESS in taxes than one who doesn't track deductions. The IRS doesn't send you a list of what you can deduct — you have to claim it yourself. Track every expense, keep every receipt (photos count), and work with an accountant who understands contractor businesses.