Tax Write Offs for Self-Employed Contractors: Your 2026 Deduction Checklist

If you're a 1099 trade contractor — HVAC, plumbing, roofing, concrete, landscaping, drywall — the tax write offs for self-employed contractors are what separate a profitable year from handing a third of your revenue to the IRS. Every dollar you spend on your trade is potentially deductible, but the rules differ by category and the recordkeeping matters more than most people realize. This is the checklist you work through before you file. For the full picture across every write-off category, start with our contractor tax write-offs guide.

What counts as a deductible business expense for a 1099 contractor?

Under IRC §162, any expense that is ordinary and necessary for your trade is deductible against your self-employment income. Ordinary means it's common in your industry — a roofer buying shingles, a plumber buying pipe. Necessary means it's helpful and appropriate for the work, not necessarily indispensable. The expense must be connected to your business, not personal. When something serves both purposes — a truck, a phone, a home office — you deduct the business-use percentage and nothing else.

The distinction that matters: you're deducting actual business expenses, not estimates or what feels fair. The IRS wants to see what you spent, when you spent it, what it was for, and that it had a business purpose. A credit card statement with the merchant name is a start, but a receipt with the line-item detail is what holds up.

Can I deduct materials and supplies I buy for jobs?

Yes — materials and supplies are fully deductible under IRC §162 as long as they're consumed in the ordinary course of your trade. This is the biggest line item for most trade contractors, and it's the most straightforward category.

• Lumber, drywall, pipe, wire, conduit, fittings, fasteners
• Concrete, rebar, gravel, sand, soil, mulch, sod
• Paint, primer, caulk, sealant, adhesives
• Cleaning supplies used on the job site
• Small consumables — blades, bits, sandpaper, tape, glue

If you buy materials and charge them to the client, the cost is deductible and the reimbursement is income. If you're tracking job-by-job, job costing for contractors helps you see which jobs are actually profitable after materials — because gross revenue per job tells you nothing without the material cost behind it.

Can I write off my truck and vehicle costs?

Yes, and this is usually the second-biggest deduction after materials. You have two options: the standard mileage rate or actual expenses. You pick one the first year you put the vehicle in service, and that choice affects what you can do later.

With actual expenses, you deduct the business-use percentage of gas, insurance, repairs, maintenance, registration, and depreciation. If the truck is 90% business use, you deduct 90% of those costs. With the standard mileage rate, you multiply business miles by the IRS rate — no tracking gas receipts, but you still need a mileage log.

For the full breakdown of mileage vs. actual, truck loans, and how to handle a vehicle you finance, see our vehicle tax write-off guide for contractors.

How do I deduct tools and equipment?

Tools and equipment are deductible, but the method depends on the cost and useful life. Anything under $2,500 per item can typically be deducted immediately under the IRS de minimis safe harbor — no depreciation schedule, no complexity. Just expense it the year you buy it.

For bigger purchases — a new air handler, a concrete mixer, a spray rig, a compressor — you have two paths under current 2026 law:

• Section 179 expensing: Deduct the full cost in the year you buy it, up to a $2,560,000 annual limit for 2026 [IRC §179(b)(1)]. The deduction phases out dollar-for-dollar once your total equipment purchases exceed $4,090,000 [IRC §179(b)(2)].
• Bonus depreciation: 100% first-year depreciation is restored and permanent for property placed in service after January 19, 2025 [IRC §168(k)]. You can write off the entire cost of qualifying equipment in year one — no limit, no phase-out.

For most trade contractors, either path gets you the full deduction in year one. Section 179 lets you pick and choose which assets to expense; bonus depreciation applies automatically to all qualifying assets unless you elect out. For the detailed breakdown, see our tools and equipment write-off guide.

Can I deduct a home office?

Yes, if you use a space in your home regularly and exclusively for your business. The word "exclusively" is where most contractors get tripped up — the space can't double as a guest room or a TV room. If you have a desk in the garage where you do estimates, invoicing, and scheduling, and that's all that happens there, it qualifies.

You can use the simplified method ($5 per square foot, up to 300 square feet, for a maximum of $1,500) or the actual expense method (deducting the business-use percentage of rent, utilities, insurance, and repairs). For most contractors with a dedicated office space, the actual method produces a bigger deduction, but it requires more recordkeeping.

For the full rules and the calculation, see our home office tax write-off guide for contractors.

Can I write off work clothes and boots?

Generally no — work clothes that could double as everyday clothing are not deductible, even if you only wear them on the job. The IRS rule under IRC §162 is that clothing must be (1) required as a condition of your work and (2) not adaptable to general wear. A polo shirt with your company logo fails the second test.

What does qualify:

• Boots with safety toes or soles required for the jobsite
• Hard hats, safety glasses, gloves, respirators
• Uniforms with your company name that are clearly workwear, not general clothing

For the full breakdown of what passes and what doesn't, see our work clothes and boots deduction guide.

Can I deduct meals and jobsite food?

Business meals are 50% deductible in 2026. The temporary 100% deduction for restaurant meals expired after 2022, so you're back to the standard 50% rule under IRC §274(n).

• Meals with clients, suppliers, or subcontractors where business is discussed: 50% deductible
• Jobsite meals for yourself: not deductible — it's a personal expense even if you're working
• Meals provided for your crew on site: 50% deductible if the meal is for the convenience of the employer and on the business premises, but as a self-employed contractor without employees, this usually doesn't apply

For the detailed rules on jobsite lunches, client meetings, and what documentation you need, see our meal tax write-off guide for contractors.

What insurance premiums can I deduct?

Several types of insurance are fully deductible as business expenses:

• General liability insurance: Fully deductible.
• Workers' comp: Fully deductible if you carry it (some states require it even if you're the only employee).
• Commercial auto insurance: Deductible as part of vehicle expenses, based on business-use percentage.
• Tools and equipment coverage: Fully deductible.
• Bond premiums: Deductible if required for your trade or licensing.

The one most contractors miss: self-employed health insurance. Under IRC §162(l), you can deduct 100% of health, dental, and long-term care insurance premiums for yourself, your spouse, and your dependents as an above-the-line adjustment to income — not an itemized deduction. This reduces both your income tax and your self-employment tax base. You can't deduct more than your net self-employment income, and if you're eligible for a spouse's employer-subsidized plan, the deduction is limited.

Can I deduct advertising and marketing?

Yes — advertising and marketing are fully deductible under IRC §162. This includes:

• Website hosting, domain registration, and design
• Google Ads, Facebook Ads, Yelp, Angi, HomeAdvisor leads
• Business cards, flyers, yard signs, vehicle wraps
• Sponsorships and community event advertising
• Logo design and branding

For the detailed rules, see our advertising tax write-off guide for contractors.

What about phone, internet, and software subscriptions?

These are deductible based on business-use percentage. If you have one phone and use it 80% for business, you deduct 80% of the monthly bill. Same for internet. If you have a separate business line, deduct 100%.

Software subscriptions used for your business are fully deductible:

• QuickBooks, FreshBooks, or other accounting software
• Scheduling or dispatch software (ServiceTitan, Housecall Pro, Jobber)
• Cloud storage for job photos and documents
• Design or estimating software
• Microsoft 365 or Google Workspace for business email

How does the 20% QBI deduction work for self-employed contractors?

The Qualified Business Income deduction under IRC §199A lets you deduct 20% of your net business profit, on top of all your other deductions. It's an above-the-line deduction — you don't need to itemize. Construction trades are not "specified service trades or businesses," so the SSTB limitation doesn't apply to you.

For 2026, the full 20% deduction is available as long as your taxable income (not just business income — all income) stays below the threshold:

• Single / head of household: $201,750 [IRC §199A(e)]
• Married filing jointly: $403,500 [IRC §199A(e)]

Above those thresholds, the deduction is limited by the W-2 wage and property factors of your business. For a solo contractor with no employees, this can reduce the deduction — but it doesn't eliminate it, and the math depends on your specific facts. Below the threshold, it's straightforward: 20% of net profit, no wage or property limitation.

One new wrinkle from the OBBBA: if your net QBI is at least $1,000, you get a minimum QBI deduction of $400 [IRC §199A(i)]. This matters in a low-profit year where the standard 20% calculation would produce a smaller number.

What records do I need to keep for the IRS?

The general rule under IRC §6001 is that you keep records sufficient to substantiate your income and deductions. For most contractors, that means:

• Bank statements and credit card statements for the business account
• Receipts for materials, tools, and equipment (digital photos are fine)
• A mileage log or mileage app for vehicle deductions
• Invoices sent to clients and invoices received from suppliers
• 1099-NEC and 1099-MISC forms you receive from clients

If you pay subcontractors $2,000 or more in 2026, you're required to file Form 1099-NEC for them [IRC §6041, OBBBA §70433]. The threshold dropped from the prior $600 figure under the OBBBA, so if you hire subs, make sure you're collecting W-9s and filing. For the rules on issuing 1099s, see our Form 1099-NEC guide.

The statute of limitations is generally 3 years [IRC §6501(a)], but if you understate income by more than 25%, it extends to 6 years [IRC §6501(e)]. Keep records for at least 3 years; 7 years is the safe play.

Do I need an LLC to get these write-offs?

No. You get the same business deductions whether you're a sole proprietor, a single-member LLC, or an S-corp. The deductions follow the business activity, not the entity type. An LLC can provide liability protection and may open up an S-corp election for payroll tax savings once your net profit is high enough, but it doesn't change what you can deduct. For the full analysis, see our LLC tax write-off guide for contractors.

Ready to make sure you're not leaving deductions on the table?

Running through this checklist before you file is the difference between a return that reflects what you actually spent on your trade and one that leaves money in the IRS's pocket. If you want a second set of eyes on your deductions — or help structuring your business to maximize every write-off — book a time with our office. You can also revisit the full contractor tax write-offs guide for every category in one place.