What Contractors Can Write Off: Deduction Checklist

You just wrapped a job. The check cleared. Then April shows up and wants 15.3% of your self-employment income. Brutal. But here's the thing most contractors miss: the tax code hands you a long list of write-offs — and every one you skip is money you paid the IRS that you didn't have to.

This is your 2026 contractor deduction checklist. Print it. Mark what applies. Then set up the one system that makes all of it stick. If you're new to the 1099 world, start with our 1099 vs W-2 guide for contractors so the 15.3% self-employment tax makes sense before you start stacking deductions on top.

Your Truck Is a Write-Off (If You Log It)

The biggest deduction for most contractors is the vehicle. For 2026, the IRS standard mileage rate is 72.5 cents per mile for business driving — up 2.5 cents from 70 cents in 2025 (IRS Notice 2026-10). Drive 10,000 business miles and that's $7,250 off your taxes. Parking and tolls count too.

The catch: you need a log. Date, miles, destination, business purpose. No log, no deduction — the IRS is strict here. A mileage tracker app handles it; so does a notebook in the glovebox.

There are two ways to claim vehicle costs. The standard rate (72.5¢/mi) is simplest and usually wins for fuel-efficient trucks. The actual expense method lets you deduct the business percentage of gas, repairs, insurance, registration, and depreciation — and can beat the standard rate if you drive an old gas-guzzler with high repair bills. Pick one and stick with it; you can't mix them mid-year. Either way, tracking the true cost of every job is where our job costing explainer comes in handy.

Tools and Gear You Buy This Year

That new saw, the generator, the ladder, the tablet you run estimates on — most of it is deductible the year you buy it. Two paths:

• De minimis safe harbor: expense any single item under $2,500 immediately, no depreciation schedule (IRS Rev. Proc. 2015-56).
• Section 179 / 100% bonus depreciation: write off bigger equipment the year it's placed in service.

Keep the receipts. Tools are easy to lose track of, and they add up fast — a $2,400 nail gun here, a $1,800 compressor there, and you've quietly saved yourself real money at tax time.

The Home Office You Already Pay For

If you run estimates, invoicing, and books from a dedicated space at home, it's deductible. Two methods:

• Simplified: $5 per square foot, up to 300 sq ft — a $1,500 max, no receipts needed (IRS Pub 587).
• Actual: the business percentage of your rent or mortgage interest, utilities, insurance, and repairs.

The rule: the space must be used regularly and exclusively for business. A spare bedroom turned office qualifies; the kitchen table doesn't. If your home is also your warehouse for materials, measure the actual square footage you use and claim that slice.

Subs, Insurance, and the Fees That Add Up

• Subcontractor labor: every dollar you pay a 1099 sub is deductible. For 2026, you must file a 1099-NEC if you paid them $2,000 or more (the threshold rose from $600 under the One Big Beautiful Bill). Collect a W-9 before the first check.
• Insurance: general liability, commercial auto, bonds, professional coverage — all deductible.
• Licenses and permits: renewal fees, contractor licenses, bond costs — fully deductible business costs.
• Bank and payment fees: business checking fees, wire fees, and the card-processing percentage you eat on customer payments are all ordinary business expenses. Don't let the 2.9% swipe fee slip through uncounted.

Marketing, Education, and Uniforms You're Forgetting

These three categories quietly cost contractors thousands every year — and most never claim them:

• Marketing: yard signs, business cards, a simple website, Google or Facebook ads, and even a vehicle wrap are 100% deductible. Getting the next job is a business cost.
• Continuing education: trade certifications, safety courses, license-renewal classes, and even the books and trade magazines you read to stay sharp. If it maintains or improves your skill, it writes off.
• Uniforms and PPE: branded shirts with your logo, steel-toe boots, hard hats, hi-vis vests, gloves, and respirators. The rule: it must be protective or clearly a uniform — ordinary off-the-rack clothing you'd wear anyway does not count.

Log each one the month you spend it. The pattern that loses deductions is "I'll remember in April" — you won't.

The Deductions That Cut Your Tax Twice

Some write-offs reduce your income and then reduce your tax again:

• Self-employed health insurance: 100% of premiums are deductible "above the line" — dollar for dollar against adjusted gross income.
• Retirement: a SEP-IRA lets you deduct up to 25% of net self-employment income (cap $70,000 in 2026); a Solo 401(k) adds an employee deferral of $23,500. Both cut your tax now and build wealth later (IRS Pub 560).
• Half your self-employment tax: you automatically deduct half of the 15.3% SE tax on Schedule 1. No receipt needed — it's built in.

Meals, Phone, Software — the Small Stuff

• Meals: 50% deductible only when you're traveling for business overnight. The sandwich at your usual job site is personal.
• Phone and internet: deduct the business-use percentage — most contractors claim 60–90%.
• Software and apps: bookkeeping, scheduling, estimating, and invoicing software — fully deductible. The tool that tracks your income is itself a write-off.

2026 IRS Figures at a Glance

The Real Secret: Records Beat Software

Here's what separates contractors who keep more from those who overpay: records, not the software box you bought. Dedicated tax software helps you file, but it can't invent a deduction you didn't document. The IRS doesn't care how many write-offs you "could" take. It cares what you can prove.

That's why a full field-service suite or a heavy accounting platform isn't the answer for a one- or two-truck operation — they bundle scheduling, inventory, and fleet modules you'll never open, then charge you for them. Light invoicing tools make the same point: the tool only matters if it captures the paper trail. What the IRS actually wants is simple — every receipt, every invoice, and every mile logged and ready to show, in a system you'll actually keep up with all year.

Run your numbers through our financial calculators to see what a retirement or mileage deduction is worth before you file.

Your 2026 Contractor Write-Off Checklist

• [ ] Business miles logged (72.5¢/mi, IRS 2026) or actual expenses tracked
• [ ] Tools & equipment under $2,500 expensed; bigger items via Section 179
• [ ] Home office method picked (simplified $5/sq ft or actual %)
• [ ] Sub labor tracked; W-9s collected; 1099-NEC filed at $2,000+
• [ ] Insurance, licenses, bonds, bank & card fees deducted
• [ ] Marketing, education, and uniforms/PPE deducted
• [ ] Health insurance premiums (100% above the line)
• [ ] Retirement contribution (SEP or Solo 401(k))
• [ ] Half of SE tax claimed on Schedule 1
• [ ] Phone/internet business % claimed
• [ ] Software & meals-on-travel claimed
• [ ] One clean record system for every receipt

Paper vs Digital: What Actually Survives an Audit

The deduction list only protects you if the proof survives. A shoebox of receipts fades, scatters, and vanishes exactly when you need it. A digital system — a photo of every receipt, a categorized folder, and an exportable log — does the opposite: it's searchable in seconds and acceptable to the IRS, which accepts electronic records. The trap isn't the software; it's the gap between "I'll organize later" and "it's April." Capture the receipt the day you spend, and the 2026 write-offs you're entitled to stop slipping through that gap. Tools that tie each expense to the job and the invoice turn a pile of paper into a defensible trail your CPA can actually use.

That is the job Invoice Zip was built for: every invoice and every expense in one organized place, so the records your deductions rest on are already there when April arrives — not scattered across a glovebox and three email threads.

This article provides general information and is not legal or tax advice. For deductions specific to your trade and state, confirm the details with a CPA or the IRS directly.

FAQ

Can I deduct a truck I also use personally?

Yes — by the business-use percentage. Log miles and use the standard rate or actual expenses for the business share only.

What is the 2026 mileage rate?

72.5 cents per mile for business use, set by the IRS for 2026 (up from 70 cents in 2025).

Do I need receipts for everything?

For vehicle, meals, travel, and lodging, and for any single expense over $75, yes. Under $75 a bank or card statement often suffices — but keep it tidy.

Is the home office deduction a red flag?

No. If you meet the regular-and-exclusive-use test, it's a legitimate, common deduction for sole proprietors.

Can I deduct my own wages?

No. As a sole proprietor you can't deduct what you pay yourself. You deduct business expenses, not owner draws.

What are my odds of an audit?

Historically low for small sole proprietors. The IRS examines only a small single-digit percentage of individual returns overall, and far fewer simple Schedule C filings — but clean records are your best defense if you're selected (IRS Data Book).

How long should I keep tax records?

The IRS generally wants 3 years from the filing date, 6 years if you omit more than 25% of income, and indefinitely if you never file. Keep mileage logs, receipts, and invoices at least 3 years — longer if in doubt (IRS Pub 552).