11 Tax Deductions Every Contractor Should Know in 2026
Most contractors overpay on taxes because they miss deductions hiding in plain sight. Here are 11 write-offs that can save you thousands, with real examples and dollar amounts so you know exactly what to track.
You Are Probably Leaving Money on the Table
Picture this. It is April, and you are sitting at your kitchen table with a shoebox of receipts, a stack of bank statements, and a growing sense of dread. Your accountant asks about mileage. You shrug. They ask about the home office. You say “I work out of my truck.” They move on.
And just like that, you paid the IRS a few thousand dollars more than you needed to.
It happens to contractors every single year. You are great at your trade, but the tax code was not written for people who swing hammers. It was written by people who sit behind desks. So the deductions that apply to you are scattered across a dozen different IRS publications, and unless someone lays them out clearly, they are easy to miss.
The average self-employed contractor pays an effective tax rate between 25% and 35% when you include self-employment tax. Every legitimate deduction you miss is money straight out of your pocket. A contractor doing $200,000 in revenue who misses just $15,000 in deductions is overpaying by roughly $4,500 to $5,250 in taxes.
This guide covers the 11 deductions that matter most for contractors in 2026. Not theory. Not accounting jargon. Practical, real-world write-offs with dollar amounts and examples so you can have a smarter conversation with your CPA, or handle things yourself with confidence.
If you are just getting your business off the ground, start with our guide on how to start a construction business in 2026, which covers the financial foundation you will need before tax strategy even matters.
1. Vehicle and Mileage Expenses
Your truck is your office, your supply run vehicle, and your job-to-job shuttle. For most contractors, vehicle expenses are the single largest deduction they claim, and also the one they most often under-track.
Two Methods, One Choice
The IRS gives you two options for deducting vehicle expenses:
Standard Mileage Rate: For 2026, the IRS standard mileage rate is $0.725 per mile. If you drive 25,000 business miles in a year, that is $18,125 in deductions without tracking a single gas receipt.
Actual Expense Method: Track every cost: gas, insurance, repairs, tires, oil changes, registration, depreciation. Then multiply by the percentage of miles driven for business. If 80% of your 30,000 total miles were business, you deduct 80% of all vehicle costs.
Which is better? It depends on your truck and how much you drive. A newer, expensive truck with high payments often favors actual expenses. An older, paid-off truck usually favors the standard rate. Run both numbers or have your CPA compare.
A plumber in Houston drives 28,000 business miles per year. At $0.725/mile, that is $20,300 in deductions. At a 30% combined tax rate, that saves $6,090 in taxes. But only if they tracked the mileage. Forgetting to log those miles means writing a $6,000 check to the IRS that they did not owe.
The Tracking Problem
Here is where most contractors lose this deduction: they do not track consistently. You need a mileage log that shows the date, starting location, destination, business purpose, and miles driven. Every trip. All year.
Nobody does that with a notebook. That is why apps exist. SimplyWise includes a mileage tracker that runs in the background and logs your drives automatically. At the end of the year, you export the log and hand it to your accountant. Done.
Important: You cannot use the standard mileage rate if you have already claimed depreciation on the vehicle using a method other than straight-line, or if you use five or more vehicles simultaneously. Check IRS Publication 463 for the full rules.
2. Tools and Equipment (Section 179)
Every saw, drill, compressor, laser level, and generator you buy for work is deductible. But the way you deduct them depends on the cost and how you choose to handle it.
Section 179 Deduction
Section 179 lets you deduct the full purchase price of qualifying equipment in the year you buy it, instead of depreciating it over several years. For 2026, the deduction limit is $2,560,000, with a spending cap of $4,090,000 before the deduction begins to phase out. For most contractors, you will never hit those limits, so everything qualifies for immediate deduction.
This covers:
- Power tools and hand tools
- Trailers and tool storage
- Compressors, generators, and welding equipment
- Vehicles over 6,000 lbs GVWR (with limitations)
- Software and technology (estimating apps, project management tools)
- Safety equipment (harnesses, PPE, first aid kits)
Bonus Depreciation
The One Big Beautiful Bill Act, signed in July 2025, restored 100% bonus depreciation permanently for qualifying property acquired after January 19, 2025. That means in 2026, you can deduct 100% of the cost of new and used equipment in the first year through bonus depreciation. For most small contractors, either bonus depreciation or Section 179 will let you write off the full cost immediately.
Keep every receipt for every tool purchase, no matter how small. That $15 drill bit set and the $8 pack of blades add up. Over a year, small tool purchases can easily total $2,000 to $5,000. At a 30% tax rate, that is $600 to $1,500 in savings you would have missed.
3. Home Office Deduction
“I work on job sites, not at a desk.” That is what most contractors say. But if you do any of the following from home, you likely qualify for the home office deduction:
- Write estimates and bids
- Handle invoicing and bookkeeping
- Schedule crews and jobs
- Order materials online
- Take client calls
- Store business records
The space does not have to be a formal office. A dedicated corner of a room, a spare bedroom, or a garage workspace all qualify, as long as the area is used regularly and exclusively for business.
Two Calculation Methods
Simplified Method: $5 per square foot, up to 300 square feet. Maximum deduction: $1,500. Easy to calculate, no receipts needed for home expenses.
Regular Method: Calculate the percentage of your home used for business, then apply that percentage to your rent or mortgage interest, utilities, insurance, repairs, and depreciation. A 200-square-foot office in a 2,000-square-foot home is 10% of all those costs.
The regular method usually yields a larger deduction but requires more documentation. If your mortgage interest, property taxes, utilities, and insurance total $24,000/year and your office is 10% of the home, that is a $2,400 deduction, $900 more than the simplified method.
4. Business Insurance Premiums
Every insurance policy you carry for your business is fully deductible. This includes:
- General liability insurance – typically $500 to $2,500/year for most trades
- Workers’ compensation – required in most states once you have employees
- Commercial auto insurance – the business-use portion of your vehicle policy
- Professional liability (E&O) – if you provide design or consulting services
- Builder’s risk insurance – project-specific coverage during construction
- Inland marine / tools and equipment – covers tools in transit or on job sites
- Surety bond premiums – if you are bonded for commercial or government work
A licensed GC with employees can easily pay $8,000 to $20,000 per year in combined insurance premiums. Every dollar is deductible.
If you pay for insurance annually, the full premium is deductible in the year you pay it (for cash-basis taxpayers, which most small contractors are). Don’t let the big lump-sum payments get lost in your records.
5. Materials and Job Supplies
This one seems obvious, but the devil is in the details. Every material you purchase for a job is deductible, but only if you track it properly and can distinguish it from personal purchases.
Deductible materials include:
- Lumber, concrete, drywall, roofing, plumbing fixtures
- Fasteners, adhesives, caulk, tape, sandpaper
- Safety supplies (hard hats, gloves, safety glasses, ear protection)
- Cleaning supplies for job site cleanup
- Fuel for generators and equipment
- Disposable items (drop cloths, plastic sheeting, masking)
The challenge is capturing every receipt. That $47 run to the hardware store for a box of screws and some caulk is easy to forget. Do that twice a week and you have missed $4,800 in deductions by year’s end.
This is where a receipt scanner pays for itself many times over. Snap a photo of every receipt the moment you get it, and it is categorized and stored automatically. SimplyWise’s receipt scanner does exactly this, pulling the vendor, date, amount, and category from the image so you never have to type anything in.
For tips on how material costs tie into your overall profit strategy, see our breakdown of 10 ways to protect your profit margin.
6. Subcontractor Payments
Every dollar you pay to a subcontractor is deductible as a business expense. If you are a GC who subs out electrical, plumbing, HVAC, or any other trade, those payments reduce your taxable income.
The 1099 Requirement
Here is the catch: if you pay any single subcontractor $600 or more in a calendar year, you are required to file a 1099-NEC with the IRS and provide a copy to the sub. Failure to file 1099s can result in penalties of $60 to $340 per form, depending on how late you file.
More importantly, if you cannot document subcontractor payments with both a 1099 and proof of payment (check, bank transfer, or payment app record), the IRS may disallow the deduction entirely during an audit.
Best practice: Get a W-9 from every sub before their first day on the job. Keep a running list of what you pay each sub throughout the year. Come January, you will have everything you need to file 1099s on time (the deadline is January 31).
The IRS has been increasing enforcement around worker misclassification. If your “subcontractor” works set hours, uses your tools, and only works for you, the IRS may reclassify them as an employee, which means back taxes, penalties, and interest. Make sure your subs are truly independent.
7. Licensing, Certifications, and Continuing Education
Staying licensed and keeping your skills current is not cheap. The good news: all of it is deductible.
- Contractor license fees – state and local licensing costs
- License renewal fees – including any required exams
- Continuing education courses – required CE credits for license renewal
- Trade certifications – EPA 608, OSHA 30, welding certs, lead-safe, asbestos
- Industry conferences and trade shows – registration, travel, and lodging
- Trade publications and subscriptions – magazines, online resources, code books
- Business-related books and courses – estimating, project management, marketing
A contractor who renews a state license ($300), takes a required CE course ($200), attends a trade show ($1,500 including travel), and maintains two certifications ($400) has $2,400 in deductions from this category alone.
If you are investing in growing your business through education and marketing, our guide on how to get more construction leads in 2026 covers the lead generation strategies that are actually working right now.
8. Phone and Internet
Your phone is a business tool. You use it to call clients, send estimates, check material prices, coordinate crews, navigate to job sites, and run business apps. The business-use portion of your phone bill and internet service is deductible.
If you use one phone for both personal and business, you need to estimate the business-use percentage. Most contractors use their phone for business 60-80% of the time. If your monthly phone bill is $100 and you use it 70% for business, that is $840/year in deductions.
If you have a separate business phone line, 100% of the cost is deductible.
Home internet follows the same rules. If you use your home internet for business tasks (ordering materials, emailing clients, running estimating software), the business percentage is deductible. This is separate from the home office deduction, though they can overlap if you use the regular method for home office calculations.
Also deductible: business apps and software subscriptions. Your estimating tools, accounting software, project management apps, cloud storage, and CRM subscriptions are all write-offs. A $30/month app subscription is $360/year in deductions.
9. Retirement Contributions
This is the deduction that most self-employed contractors either do not know about or assume they cannot afford. But retirement contributions are one of the most powerful tax reduction tools available.
SEP-IRA
A SEP-IRA lets you contribute up to 25% of your net self-employment income, up to $72,000 for 2026. The contribution is tax-deductible, reducing your taxable income dollar for dollar. And you have until your tax filing deadline (including extensions) to make the contribution.
That means if you had a strong year and are facing a big tax bill, you can open a SEP-IRA and make a contribution in April (or October with an extension) that reduces last year’s taxes.
Solo 401(k)
A Solo 401(k) is even more powerful for high-earning contractors. You can contribute up to $24,500 as an employee deferral, plus up to 25% of net earnings as an employer contribution, for a combined maximum of $72,000 (or $80,000 if you are 50 or older). The Solo 401(k) also offers a Roth option for after-tax contributions.
A contractor with $150,000 in net self-employment income contributes $37,500 to a SEP-IRA (25% of net income). At a 30% combined tax rate, that saves $11,250 in taxes, and the money is growing for retirement instead of going to the IRS. The contribution deadline extends to the tax filing deadline, so you can make this decision after seeing your full-year numbers.
10. Health Insurance Premiums
If you are self-employed and pay for your own health insurance, the premiums are deductible. This includes coverage for yourself, your spouse, and your dependents. It also includes dental and vision insurance.
This is an “above the line” deduction, meaning it reduces your adjusted gross income directly. You do not need to itemize to claim it.
The average self-employed health insurance premium in 2025 ranged from $400 to $900 per month for an individual plan, according to industry data from eHealth. For a family plan, premiums can run $1,200 to $2,500 per month. At the lower end, that is $4,800/year for an individual, which translates to roughly $1,440 in tax savings at a 30% rate.
Limitations: You can only deduct health insurance premiums up to the amount of your net self-employment income. If your business shows a loss, you cannot use this deduction. Also, you cannot claim this deduction for any months where you were eligible for employer-sponsored coverage through a spouse’s plan or another job.
Long-term care insurance premiums are also deductible, with age-based limits set by the IRS each year.
11. Business Meals
The meal deduction is back to 50% for 2026 (the temporary 100% deduction for restaurant meals expired after 2022). But 50% of your business meals is still worth tracking.
Deductible meals include:
- Meals with clients where business is discussed
- Meals with subcontractors while planning or reviewing a project
- Meals during business travel (overnight trips away from your tax home)
- Meals at conferences, trade shows, and continuing education events
You need to document: the date, location, who was present, and the business purpose. A receipt alone is not enough. The IRS wants to know why the meal was a business expense.
A contractor who averages $40 in business meals per week (two lunches with subs or clients) has $2,080 in meal expenses, of which $1,040 is deductible. That saves roughly $312 at a 30% tax rate. Not life-changing, but it adds up.
Meals you eat alone on a job site are generally not deductible unless you are traveling away from your tax home overnight. Your daily lunch at the sandwich shop by the job site is a personal expense. But lunch with a sub to discuss the project schedule? That is a business meal.
2026 Contractor Tax Deduction Checklist
Use this table as a quick reference when gathering your records for tax time. Check off each category and make sure you have documentation for every deduction you claim.
| Deduction | What to Track | Typical Annual Value |
|---|---|---|
| Vehicle / Mileage | Mileage log or actual expenses (gas, insurance, repairs, depreciation) | $10,000 – $25,000 |
| Tools & Equipment | Receipts for all purchases, Section 179 election | $2,000 – $50,000+ |
| Home Office | Square footage, rent/mortgage, utilities, insurance | $1,500 – $5,000 |
| Insurance Premiums | GL, workers’ comp, commercial auto, bonding | $3,000 – $20,000 |
| Materials & Supplies | Every receipt from suppliers and hardware stores | Varies by volume |
| Subcontractor Payments | W-9s, payment records, 1099-NEC forms | Varies by volume |
| Licensing & Education | License fees, CE courses, certs, trade shows | $500 – $5,000 |
| Phone & Internet | Monthly bills, business-use percentage, app subscriptions | $1,000 – $3,000 |
| Retirement Contributions | SEP-IRA or Solo 401(k) contribution records | $5,000 – $72,000 |
| Health Insurance | Premium statements for self, spouse, dependents | $4,800 – $30,000 |
| Business Meals | Receipts with date, attendees, and business purpose noted | $500 – $3,000 |
A solo contractor who diligently tracks all 11 categories could easily claim $30,000 to $80,000+ in legitimate deductions. At a 30% combined tax rate, that is $9,000 to $24,000 in tax savings. The only requirement is documentation. Keep the receipts, keep the logs, keep the records.
How to Make Tracking Painless
The biggest obstacle is not knowing the rules. It is the daily habit of capturing receipts and logging miles. That is a problem worth solving with the right tool.
SimplyWise combines a receipt scanner that pulls data from photos instantly with a mileage tracker that runs in the background. At $30/month, it costs less than one missed deduction per year. Every receipt is categorized, every mile is logged, and when tax time comes, you export everything in one clean report.
For more ways to keep more of what you earn, read our guide on how to scale your construction business without burnout.
Bonus: 5 Deductions Contractors Commonly Miss
Beyond the big 11, here are five write-offs that fly under the radar:
Self-Employment Tax Deduction
You pay both the employer and employee halves of Social Security and Medicare taxes (15.3% combined on the first $184,500 of net earnings for 2026). The IRS lets you deduct the employer-equivalent half (7.65%) on your personal return. This is automatic if you file correctly, but worth understanding because it reduces your AGI.
Bank Fees and Interest
Business bank account fees, credit card interest on business purchases, and loan interest for equipment or vehicle financing are all deductible. If you carry a balance on a credit card used for materials, that interest is a write-off.
Advertising and Marketing
Your website, business cards, truck lettering, yard signs, online ads, and lead generation subscriptions are all deductible. A contractor who spends $200/month on Google Ads and $50/month on a website has $3,000 in deductions.
Legal and Accounting Fees
Your CPA’s fee, tax preparation costs, attorney consultations for contracts, and LLC formation costs are deductible. If you pay $1,500/year for tax preparation and bookkeeping, that saves $450 in taxes.
Uniforms and Work Clothing
Work clothing that is not suitable for everyday wear is deductible. Company-branded shirts, steel-toe boots, hard hats, high-visibility vests, and Carhartt-style work pants with your logo all qualify. Regular jeans and t-shirts do not, even if you only wear them to work.
Record-Keeping Tips That Will Save You in an Audit
Claiming deductions is one thing. Surviving an audit is another. The IRS can audit returns up to three years after filing (six years if they suspect substantial underreporting). Here is how to protect yourself:
- Keep receipts for at least 3 years from the date you file the return (or the due date, whichever is later). For equipment and vehicles, keep records for as long as you own the asset plus 3 years.
- Separate business and personal accounts. Use a dedicated business bank account and credit card. Commingling funds is the fastest way to trigger an audit and lose deductions.
- Document the business purpose of every expense. A receipt alone does not prove it was a business expense. Add a note about the job, client, or reason.
- Use digital records. The IRS accepts digital copies of receipts. A clear photo is just as good as the paper original, and it will not fade in your glovebox.
- Reconcile monthly. Do not wait until April to sort through a year of receipts. Spend 30 minutes at the end of each month reviewing expenses and making sure everything is captured.
The most audit-proof contractors are the ones with the most boring, consistent records. No drama, no missing gaps, no guesswork. Just clean data, every month, all year. That is what makes a receipt scanning habit so valuable: it removes the human error from the equation.
Frequently Asked Questions
Capture Every Deduction Automatically
The two biggest contractor deductions are receipts and mileage, and most people under-track both. SimplyWise scans receipts on the spot and logs miles in the background so nothing slips through at tax time. $30/month.