23 Tax Deductions Contractors Should Review in 2026

A contractor’s deduction review starts with the records: what the business bought, why it needed it, when it was used and who paid. A bank transaction alone rarely answers all four questions.

Use these 23 categories as a review list for 2026. Some are current expenses, some are recovered through depreciation and others are deductions on the owner’s return. They are not 23 amounts to add together: vehicle methods overlap, and an expense can only be deducted once.

Vehicles and transportation

1. Work trucks and vans

Review the vehicle classification, business-use percentage, acquisition date and placed-in-service date before choosing depreciation or Section 179. A weight rating above 6,000 pounds does not automatically mean an unlimited deduction. Passenger-auto and heavy-SUV rules differ. Keep the purchase contract, vehicle specifications and mileage log together.

2. Vehicle operating expenses or mileage

Compare eligible actual expenses with the standard mileage method. For 2026 business driving, the rates are 72.5 cents per mile through June 30 and 76 cents from July 1. Use dated records to allocate miles correctly. Fuel, insurance, maintenance and depreciation already represented by the mileage rate cannot also be deducted separately. Ordinary commuting is personal travel. IRS mileage rates and vehicle expense rules.

3. Vehicle loan interest

For a self-employed owner, the business share of vehicle-loan interest can generally be considered separately, including when the mileage method is used. Principal payments are not interest expense. Keep the lender’s interest breakdown and a supported business-use allocation; ask your preparer how ownership and tax classification affect the claim. IRS Topic 510.

4. Trailers and hauling equipment

Record these as separate assets instead of burying them in the truck’s purchase price. Their basis, recovery period and eligibility for accelerated deductions depend on the equipment and use. Keep serial numbers and service dates so the tax asset schedule can be reconciled to what is actually in the yard.

Equipment, tools and protective gear

5. Heavy equipment

Excavators, lifts, compressors and other machinery can qualify for depreciation. Eligible property acquired and placed in service after January 19, 2025 can qualify for 100% bonus depreciation. Section 179 is another option with separate limits. A deposit on a machine that is not yet ready and available for work does not establish a current depreciation deduction. Form 4562 instructions.

6. Small tools and supplies

Consumables, repairs and durable assets need different treatment. The de minimis safe harbor can allow qualifying purchases of $2,500 or less per invoice or item for taxpayers without an applicable financial statement, subject to accounting-policy, book-treatment and annual-election requirements. It is not an automatic write-off for every tool below that price. IRS tangible-property rules.

7. Safety equipment

Separate business protective equipment from ordinary personal clothing. Keep receipts for job-specific gear such as hard hats, fall-protection equipment and protective eyewear, and record who uses it. A purchase being useful at work does not by itself establish that every personal use is deductible.

8. Uniforms and work clothing

Required clothing generally needs to be unsuitable for ordinary wear to qualify under the work-clothing rules. Ordinary jeans and everyday boots should not be treated as uniforms simply because you wear them on a job. Track qualifying uniforms and their cleaning costs separately. Schedule C instructions.

Home office and job-site costs

9. A qualifying home office

Check the regular-and-exclusive-use and qualifying-business-use requirements. For an eligible sole proprietor, the simplified method generally uses $5 per square foot, up to 300 square feet, subject to income limits. The actual method allocates eligible housing expenses; mortgage principal is not an expense. Corporate owner-employees need a separate reimbursement analysis. IRS Publication 587.

10. Temporary job-site facilities

Identify site rentals, portable facilities, temporary utilities and security by job. The business purpose may be clear, but the accounting method determines when costs are deducted or included in contract costs. Keep invoices linked to the project instead of assuming every paid bill is an immediate tax deduction.

11. Travel and lodging

An out-of-town job is not automatically deductible travel. Review the worker’s tax home, whether sleep or rest is required, and whether the assignment is temporary or indefinite. Record dates, destinations and business purpose; separate family travel and personal extensions. IRS travel guidance.

Labor, subcontractors and benefits

12. Subcontractor payments

Match invoices to actual services and classify the worker correctly. For qualifying nonemployee service payments made in 2026, the general Form 1099-NEC threshold is $2,000, with exceptions based on recipient and payment method. Collect a W-9 before paying. Reporting failures can create penalties and withholding issues; they do not automatically erase an otherwise supported business expense. IRS Form 1099-NEC guidance.

13. Wages and employer payroll taxes

Reconcile gross wages, employer taxes, payroll liabilities and cash withdrawals. Owner draws are not wages. For an S-Corp shareholder who works in the business, compensation needs support based on the services performed. Keep timesheets, payroll reports and role descriptions rather than treating a percentage of profit as the salary rule. IRS S-Corp compensation guidance.

14. Employee benefits

Health coverage, retirement contributions and other benefits each have eligibility, reporting and nondiscrimination rules. Ask how the plan treats owners, family members and the rest of the crew. A cost can be deductible to the employer while still needing payroll inclusion for the recipient. IRS employer fringe-benefit guide.

Insurance and business credentials

15. Owner health insurance

The self-employed health insurance deduction has earned-income and coverage restrictions. More-than-2% S-Corp shareholders need the correct company payment or reimbursement and W-2 treatment. It is not an ordinary tax-free accountable-plan reimbursement. Keep coverage dates and any subsidized employer-plan eligibility in the review file. Form 7206 instructions.

16. Business insurance

Reconcile liability, commercial property, workers’ compensation and other business policies to the insured activity and coverage period. Personal policies and certain life-insurance premiums follow different rules. Premium audits and refunds also need to flow through the books instead of leaving the original expense untouched.

17. Licenses and bonding costs

Maintain a register of trade licenses, renewals, permits and business bond premiums. Connect job-specific charges to the relevant work. Some fees belong in an asset or contract cost rather than a standalone current expense. The payment’s label is only the starting point for classification. IRS business-expense guidance.

Retirement contributions

18. An eligible business retirement plan

Choose the plan around compensation, employees and affordable contributions. For 2026 the ordinary 401(k) deferral limit is $24,500 and the defined-contribution total cap is $72,000 before eligible catch-ups. That cap is not a deduction every owner can claim. S-Corp employer contributions use wages; self-employed owners use adjusted earnings. A solo plan generally cannot ignore eligible non-spouse employees. 2026 IRS limits and one-participant plan rules.

Operating costs and customer acquisition

19. Phone and internet

Separate business use from household use and retain bills plus a reasonable allocation method. Paying through the business account does not make the entire family phone plan deductible. Record reimbursements so the company and owner do not both claim the same expense.

20. Software and technology

Track estimating, scheduling, accounting and field software by subscription or asset. Keep the renewal term and number of users with the invoice. Hardware and acquired software can require different treatment from monthly subscriptions; prepayments can also change deduction timing.

21. Marketing and advertising

Retain invoices, campaign agreements and examples of the work purchased. Distinguish business advertising from personal sponsorships and political contributions. Website development and other longer-lived costs may require a different analysis from a recurring advertising bill.

22. Continuing education

Education that maintains or improves skills in the existing business can qualify. Training that meets minimum entry requirements or qualifies you for a new trade generally does not qualify under the work-related education deduction. Save the syllabus and explain its connection to current duties. IRS education guidance.

23. Business meals

Qualifying business meals are generally 50% deductible. Entertainment is generally nondeductible, and exceptions need separate support. Keep the attendees and business purpose with the receipt. Do not assume the same treatment for a customer lunch, crew holiday party and employer-provided daily meals; some employer meal deductions changed in 2026. IRS Publication 463 and 2026 fringe-benefit guide.

Turn the list into a review file

For each relevant category, record the amount, where it appears in the books, the supporting document and the open question. Mark an item complete only after its eligibility and timing have been reviewed. There is no useful “total savings” figure until the tax return is modeled as a whole.

For more detail, use the business deduction guide and equipment depreciation guide. Examples are educational, not documented client results.