Business Growth · October 19, 2026 · 11 min read · By BJ, Nashville TN Roofer & Founder

Year-End Tax Planning for Roofing Contractors: Save More Money

Don't overpay taxes. Here's how to optimize your tax situation before year-end.

Year-End Tax Planning for Roofing Contractors: Save More Money 💰

Most roofing contractors overpay taxes every year—not from tax fraud, but from failing to plan. The window between September and December 31 is your best opportunity to legally reduce your tax burden. After year-end, your options shrink dramatically.

Here's what to review with your accountant before December 31.

Accelerate Deductions, Defer Income

The basic year-end tax strategy: pull deductions into this year and push income into next year (if you expect similar or lower income next year).

Accelerate deductions by:

• Making equipment purchases before December 31 (Section 179 expensing lets you deduct full purchase price immediately)
• Prepaying business insurance premiums
• Paying Q4 estimated state taxes before year-end (deductible for federal if you itemize)
• Stocking up on supplies that you'll use in Q1

Defer income by:

• Invoicing late-December completed jobs in January
• Timing large project completions to straddle year-end (bill in January)
• Keeping retainage on delayed completions until next year

Section 179 Equipment Deduction

This is the most powerful year-end tax tool for contractors. Section 179 allows you to immediately expense the full purchase price of qualifying equipment in the year of purchase—rather than depreciating it over 5–7 years.

Section 179 limit: Well over $1 million and adjusted regularly — verify the current-year limit with your accountant, as recent legislation has raised it substantially

What qualifies:

• Vehicles over 6,000 lbs GVWR (trucks, trailers, vans)
• Ladders, scaffolding, and roofing equipment
• Computers, tablets, phones used for business
• Software (including roofing estimating tools)
• Office furniture and equipment

Example: Buy a $65,000 work truck in December. If you're in the 25% tax bracket, Section 179 saves you $16,250 in taxes this year—versus $3,250/year if depreciated over 5 years.

Retirement Account Contributions

If you have a SEP-IRA, SIMPLE IRA, or Solo 401(k), maximizing contributions before year-end is one of the most powerful tax moves available.

SEP-IRA: Contribute up to 25% of net self-employment income, subject to the annual IRS dollar cap (roughly $70,000 in recent years — verify the current-year limit). Can be established and funded as late as your tax filing deadline (including extensions).

Solo 401(k): Must be established by December 31. Allows larger contributions than SEP-IRA for high earners because you can contribute as both employee and employer.

Example: A contractor earning $200,000 net contributes $50,000 to a SEP-IRA. At 25% federal rate, that's $12,500 in immediate tax savings.

Vehicle and Mileage

Every vehicle used for business should be tracked. You have two options:

• Standard mileage rate: Set by the IRS each year (around 70 cents/mile in recent years — verify the current-year rate)
• Actual expense method: Track fuel, insurance, maintenance, depreciation, registration

Review both methods with your accountant to determine which yields a higher deduction for your specific usage.

Year-end action: Finalize your mileage log now. Reconstruct from phone GPS data or appointment history if needed. Missing documentation is the #1 reason this deduction gets challenged.

Home Office Deduction

If you have a dedicated home office space used regularly and exclusively for your roofing business, you can deduct:

• A proportional share of rent/mortgage interest, utilities, and insurance
• Or use the simplified method: $5/sq ft up to 300 sq ft

Many contractors miss this. If you do your estimating, admin, and calls from a dedicated home office, it qualifies.

Hire Your Kids (Legally)

If your children are old enough to do legitimate business tasks (social media posting, filing, answering phones), you can pay them wages. Children under 18 employed by a parent's sole proprietorship pay no Social Security or Medicare tax, and wages up to the annual standard deduction (roughly $15,000 in recent years — verify the current amount) are income-tax-free.

This shifts income from your high tax bracket to their zero tax bracket. Consult your accountant for specifics.

Year-End Business Review

While you're doing tax planning, use year-end to answer key business questions:

• What was my actual gross margin by job type?
• Which revenue streams were most profitable?
• Am I on track for next year's goals?

Tools that help: QuickBooks year-end reports, job cost reports from your project management software.

Your accountant needs to know what you're planning by early December. Don't wait until January. And throughout the year, use Squares For Sales to stay organized and efficient—better operations mean better financial data and easier year-end planning. Start your free trial today.

Free Tools & Reference Guides

Everything below is free to read, and the calculator is free to use.

• Free roof measurement calculator — locate any US roof on live satellite imagery, then measure it.
• What is a roofing square? — the 100 sq ft unit every roofing order is built on.
• How many squares is my roof? — work it out from footprint and pitch.
• Roof pitch multiplier chart — multipliers for 1/12 through 12/12.
• How accurate are satellite roof measurements? — what our testing against EagleView reports showed.

Start your 7-day free trial — unlimited measurements, $0 due today.

Related Guides

• Roofing Tax Deductions Guide — Complete list of deductions to claim.
• Roofing Equipment Maintenance — Equipment purchases are Section 179 deductions.
• Roofing Business Valuation — Tax planning impacts your business valuation.
• Annual Business Planning Guide — Tax planning is part of your annual financial plan.

*Written by BJ — Nashville roofer, founder of SquaresForSales.com, and dad who'd rather be home for dinner than on a ladder at 5pm.*