Contractor Tax Deductions: 12 Write-Offs and Records to Keep

Independent contractors pay tax on profit, not gross invoices. The practical job is therefore to record every ordinary and necessary business cost, keep evidence, and separate business spending from personal spending. A deduction reduces taxable profit; it is not a dollar-for-dollar refund.

This guide covers common US federal deductions for sole proprietors and single-member LLCs reporting business activity on Schedule C. Eligibility depends on the facts, your business structure, and current law. Use it as a recordkeeping checklist, not personal tax advice.

Common independent contractor tax deductions

1. Business mileage and vehicle costs

You may generally choose between the standard-mileage method and the actual-expense method for eligible business vehicle use, subject to IRS rules. For 2026, the business standard mileage rate is 72.5 cents per mile through June 30 and 76 cents per mile from July 1. Normal commuting between home and a regular workplace is generally personal.

Use the 2026 mileage reimbursement calculator to apply the correct half-year rate and keep dates, destinations, business purpose, and miles in the free mileage log template.

2. Supplies, materials, and small equipment

Consumable supplies and materials used for client work are usually business expenses. Examples include job materials, shipping supplies, stationery, protective equipment, and low-cost tools. Durable equipment may need to be depreciated or handled under another deduction rule rather than expensed immediately.

3. Software and online services

Business-use software can include invoicing, bookkeeping, design, scheduling, cloud storage, project management, security, and industry-specific subscriptions. If a service has both business and personal use, deduct only the defensible business share.

4. Advertising and marketing

Website hosting, domain registration, paid advertising, printed materials, directory listings, and other genuine promotion costs are commonly deductible. Record the vendor, campaign, date, and business purpose instead of keeping only a card statement.

5. Professional and contract services

Fees paid to accountants, bookkeepers, attorneys, designers, developers, and subcontractors for business work may be deductible. Payments to subcontractors can also create information-reporting obligations, so collect the appropriate taxpayer information and keep payment records.

6. Insurance, licenses, and professional fees

Business liability insurance, professional indemnity coverage, required licenses, trade memberships, and qualifying professional subscriptions may be deductible when they relate directly to the business. Personal insurance and general social-club dues normally require different treatment.

7. Home office expenses

A qualifying home office must generally be used regularly and exclusively for business, with limited exceptions. Contractors may be able to use the simplified method or calculate an actual business percentage of eligible home costs. A kitchen table used by the household usually does not meet the exclusive-use test.

8. Business travel and meals

Travel away from your tax home can involve transportation, lodging, and other necessary costs. Business meals have separate limits and documentation rules. Record who attended, the business relationship, and the purpose; a receipt alone does not establish why a meal was business-related.

9. Phone and internet

Deduct the business portion of phone and internet costs. A separate business line is easier to document. If one service is mixed-use, use a reasonable, consistent allocation supported by how the service is actually used.

10. Education connected to the current business

Courses, books, and continuing education that maintain or improve skills in your current trade or business may qualify. Education that prepares you for a new trade or business is treated differently, even if it may increase future income.

11. Payment processing and bank fees

Card-processing charges, marketplace fees, wire fees, and business-bank charges reduce the amount you retain from a sale and are commonly recorded as business expenses. Reconcile gross customer payments, fees, refunds, and the net deposit rather than recording only the bank deposit as revenue.

12. Retirement and health-insurance deductions

Eligible self-employed people may have deductions for contributions to qualifying retirement arrangements and for self-employed health-insurance premiums. These do not always appear as ordinary Schedule C expenses, so keep them separate and confirm their treatment when preparing the return.

Expenses contractors commonly misclassify

Commuting: home-to-regular-workplace travel is generally personal.
Everyday clothing: ordinary clothes are normally personal even if worn for work; protective or specialized uniforms may be different.
Client reimbursements: how a reimbursement is reported depends on the arrangement and accounting treatment. Keep the original receipt and show the charge separately.
Large equipment: a purchase may need depreciation or another capitalization treatment.
Mixed-use expenses: deduct only the business share and document how you calculated it.

A recordkeeping workflow that survives tax time

Use a dedicated business bank account or card wherever possible.
Save the receipt or invoice when the cost occurs, not months later.
Record the date, vendor, amount, category, and business purpose.
Attach the client or project when the cost is reimbursable.
Reconcile monthly against bank, card, and payment-platform statements.
Review profit and estimated tax before each quarterly deadline.

The expense report template provides a spreadsheet-ready starting point. Summarize the result with the profit and loss statement template, then estimate federal tax and quarterly payments with the 1099 and self-employment tax calculator.

How deductions affect a contractor's tax estimate

Suppose a contractor invoices $80,000 and has $15,000 of allowable business expenses. Their Schedule C profit starts at $65,000, not $80,000. Self-employment tax is generally calculated from net earnings, and federal income tax calculations also begin from income after relevant adjustments and deductions. The exact result depends on filing status, other income, credits, and state tax.

Do not spend money solely to obtain a deduction. A deductible $100 purchase still costs cash; it merely reduces the income exposed to tax. Buy what the business needs and keep evidence for legitimate costs.

Sources and annual review

Reviewed September 20, 2026. General US federal information only; this is not tax or legal advice. State rules and individual circumstances vary.