10 Tax Write-Offs for Carpenters in 2026

Tools & Power Equipment

Schedule C Line 22 · $500 — $5,000/yr

Table saws, miter saws, routers, nail guns, drills, levels, measuring tools, and hand tools. Items over $2,500 may need Section 179.

Lumber & Materials

Schedule C Line 22 · $2,000 — $20,000+/yr

Wood, plywood, hardware, screws, nails, glue, finishes, and other building materials supplied for projects not reimbursed by clients.

Vehicle / Mileage

Schedule C Line 9 · $3,000 — $12,000/yr

Driving to job sites, lumber yards, and hardware stores. Includes truck expenses for hauling tools and materials.

Business Insurance

Schedule C Line 15 · $1,000 — $4,000/yr

General liability, commercial auto, and workers compensation insurance for your carpentry business.

Safety Equipment

Schedule C Line 22 · $100 — $800/yr

Safety glasses, ear protection, dust masks, respirators, hard hats, and fall protection harnesses.

Shop / Workshop Rent

Schedule C Line 20b · $3,000 — $15,000/yr

Rent for a workshop or shop space used for cutting, assembly, and finishing work. Includes storage for lumber and tools.

Equipment Maintenance & Repairs

Schedule C Line 21 · $200 — $1,500/yr

Saw blade replacement, tool sharpening, equipment repairs, and preventive maintenance on power tools.

Phone & Communication

Schedule C Line 25 · $500 — $1,200/yr

Business percentage of your cell phone for client communication, estimates, and job site coordination.

Subcontractor Payments

Schedule C Line 11 · $0 — $20,000+/yr

Payments to other carpenters, helpers, or tradespeople you hire for specific jobs. File 1099-NEC for payments over $600.

Advertising & Marketing

Schedule C Line 8 · $200 — $2,000/yr

Website, portfolio photography, truck lettering, business cards, Houzz or Thumbtack listings, and local advertising.

Home Office Deduction

30 (Form 8829)

If you use a dedicated space in your home regularly and exclusively for business, you can deduct it. Simplified method: $5 per square foot, up to 300 sq ft ($1,500 max). Regular method: proportionate share of rent/mortgage, utilities, insurance, and repairs.

Self-Employment Tax Deduction

Form 1040, Line 15

You can deduct the employer-equivalent portion of self-employment tax (7.65% of net earnings) as an above-the-line deduction on your Form 1040.

Health Insurance Premiums

Form 1040, Line 17

Self-employed individuals can deduct 100% of health, dental, and vision insurance premiums for themselves, their spouse, and dependents.

Retirement Contributions

Form 1040, Line 16

Contributions to a SEP-IRA (up to 25% of net earnings), Solo 401(k), or SIMPLE IRA are deductible and reduce both income tax and self-employment tax.

Qualified Business Income (QBI) Deduction

Form 1040, Line 13

Most self-employed individuals can deduct up to 20% of qualified business income under Section 199A, subject to income limits and business type.

Can carpenters deduct the cost of lumber and materials?

Yes. Lumber, hardware, and building materials you purchase for projects are deductible on Schedule C Line 22 (Supplies), as long as the client does not reimburse you for these costs.

Is shop rent tax-deductible for carpenters?

Yes. Rent for a workshop or shop space is deductible on Schedule C Line 20b (Rent or lease — Other business property). This includes storage for tools and materials.

Can I deduct power tools like a table saw?

Yes. Power tools are deductible business equipment. Use Section 179 to deduct the full cost in the year of purchase, or use the de minimis safe harbor for tools under $2,500.