Contractor Tax Deductions (2026): The Full List
The deductions trades most often miss: vehicle (mileage or actual, IRS Pub 463), tools and equipment (Section 179 / Pub 946), home office (Pub 587), insurance, phone/data, subcontractor payments, and half your self-employment tax. Every one needs a record — a tracked expense is a deduction; an untracked one is a donation to the IRS. Track them as you go, not in April.
For a self-employed contractor, deductions are the difference between a brutal tax bill and a fair one. Here’s the working list, each with where it lives in the IRS rules so it holds up.
The deductions to capture
- Vehicle — standard mileage or actual expense (IRS Pub 463). Needs a mileage log.
- Tools & equipment — expensed or via Section 179 / bonus depreciation (Pub 946). Big purchases can often be written off the year you buy.
- Home office — if you use a space regularly and exclusively for the business (Pub 587); simplified method is $5/sq ft up to 300 sq ft.
- Materials & supplies — job materials, consumables, safety gear.
- Insurance — general liability, tools/equipment, commercial auto (and self-employed health insurance may be deductible).
- Subcontractor payments — fully deductible; file 1099-NEC for anyone you pay $600+.
- Phone, software, advertising — the business-use portion.
- Half of self-employment tax — the employer-equivalent portion is an above-the-line deduction.
- Retirement — SEP-IRA or Solo 401(k) contributions reduce taxable income.
Why tracking is the whole game
The IRS doesn’t disallow deductions because they’re not real — it disallows them because you can’t prove them. A contractor netting $90,000 who diligently tracks vehicle, tools, home office, insurance, and phone can often shave $10,000–$20,000 off taxable income — real money at a 22%+ marginal rate. Miss the records and you hand it back. A simple expense system updated weekly is all it takes.
Contractor Bookkeeping Spreadsheet (Income & Expense)
Categorized expense tracking that maps to these deduction buckets, plus mileage and a year-end summary — so tax time is a one-click export, not a shoebox of receipts. Excel + Google Sheets.
Pair it with the mileage log and stay ahead of quarterly estimated taxes so deductions actually lower what you owe each quarter.
Trade Templates Co. builds back-office templates for solo trade businesses, QA’d against real job numbers before they ship. Informational, not tax advice — confirm specifics with your CPA and current IRS pubs.
Frequently asked questions
Can I deduct my work truck?
Yes — via standard mileage or actual expense (Pub 463), with a mileage log. Heavy vehicles may also qualify for Section 179.
What is Section 179?
A rule (Pub 946) that lets you expense the full cost of qualifying tools/equipment the year you buy it, instead of depreciating over years.
Do I qualify for the home office deduction?
If you use a space regularly and exclusively for the business (Pub 587). The simplified method is $5/sq ft up to 300 sq ft.
Do I need to 1099 my subs?
File a 1099-NEC for any non-corporate subcontractor you pay $600+ in a year; the payments themselves are deductible.
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