How much can a trade contractor save with proactive tax planning?

For contractors doing $3M-$8M in revenue with $300K-$600K in owner income, a proper tax strategy typically saves $50,000-$200,000 per year through entity optimization, accelerated depreciation, retirement plan contributions, state tax workarounds, and proper deduction documentation.

What is the most commonly missed tax strategy for contractors?

The PTET (Pass-Through Entity Tax) election. Over 35 states offer it, and it allows S-corps and partnerships to bypass the $10,000 SALT cap. For a California contractor paying $55,000+ in state income tax, this single election can save $15,000-$20,000 per year in federal taxes.

Should a contractor hire a CPA or a fractional CFO for tax planning?

A CPA files your return. A fractional CFO makes sure there is more profit on the return before it gets filed. Most CPAs are compliance-focused. A CFO plans entity structure, retirement contributions, asset purchases, and state elections before the year ends so the tax outcome is intentional.

When should a contractor start tax planning?

January, not December. Most tax strategies require advance setup: S-Corp elections are due March 15, retirement plan adoptions have funding deadlines, PTET elections have early-year opt-in windows, and equipment purchases need to be modeled before you sign the check.

Can contractors legally pay their children to reduce taxes?

Yes. If your business is a sole proprietorship or single-member LLC, wages to children under 18 are exempt from Social Security and Medicare taxes. The child can earn up to the standard deduction ($14,600 in 2025) essentially tax-free. The business gets a full deduction. The work must be real, age-appropriate, and documented.

Tax Strategy for Contractors: The Complete Guide to Paying Less (Legally)

I've spent 25 years in tax and accounting, reviewed over 100,000 returns, and worked with more than 1,000 business owners. The same pattern shows up constantly with trade contractors: owners making six-figure decisions on half-baked numbers, leaving five and six figures on the table in tax savings their CPA never mentioned.

Contractor tax strategy is the proactive structuring of entity elections, deductions, retirement contributions, and state tax elections to minimize the tax bill for HVAC, plumbing, electrical, and roofing contractors doing $3M–$8M in revenue. Unlike compliance (filing the return), tax strategy happens during the year, before the numbers are locked.

This guide covers the tax strategies that actually matter for HVAC, plumbing, electrical, roofing, and general contractors doing $3M-$8M in revenue. No theory. No jargon. Just the plays, who they're for, and what to do next.

I'm not going to pretend every strategy applies to every contractor. Some require specific entity structures. Some only make sense above certain income thresholds. Some are aggressive; some are boring. I'll tell you which is which.

The Six Levers That Move a Contractor's Tax Bill

Every strategy in this guide pulls one of six levers. Understanding these matters more than memorizing Code sections.

1. Timing — Pull deductions into this year. Push income into next year. Bonus depreciation, Section 179, and accounting method choices all live here.

2. Character — Not all income is taxed the same. Ordinary income, capital gains, qualified dividends, and Roth distributions all hit different rates.

3. Entity Structure — How your business is organized determines which deductions you can take, how distributions are taxed, and which strategies are available.

4. Jurisdiction — Where you live and operate determines your state tax rate. For California contractors, this lever alone can be worth six figures.

5. Person — Shifting income to family members in lower brackets, funding retirement plans, or routing money through the right entity reduces the household tax bill.

6. Rate — Credits (R&D, energy), exclusions (QSBS), and deductions that bypass normal limits (PTET) directly reduce your effective rate.

The best plans stack multiple levers on the same dollar.

1. S-Corp Election — Stop Paying Self-Employment Tax on Every Dollar

Lever: Entity Structure | Typical savings: $15,000-$40,000/year

If you're a sole proprietor or single-member LLC, the IRS taxes all of your net income at 15.3% for self-employment tax. On $350K net, that's roughly $38,500.

Elect S-Corp status and you split income into salary (subject to payroll tax) and distributions (not subject). Set reasonable salary at $130K, take $220K as distributions, save roughly $20,000. Breakeven is around $70-80K net income.

Full breakdown: S-Corp Election — The Math Your CPA Won't Show You →

2. Section 179 & Bonus Depreciation — Write Off Equipment Now

Lever: Timing | Typical savings: $10,000-$50,000+ per purchase

A $90,000 service truck normally depreciates over five years. Section 179 and bonus depreciation let you deduct the full amount this year. At a combined 45% rate, that's $40,000+ back in your pocket this season.

The trap: If the asset ties to a passive activity, the deduction gets suspended under §469. Confirm every asset ties to your active trade before you buy.

Full breakdown: §179 & Bonus Depreciation for Contractors →

3. The Accountable Plan — Turn Everyday Costs Into Tax-Free Reimbursements

Lever: Entity Structure + Rate | Typical savings: $5,000-$15,000/year

Without an accountable plan, S-Corp officers can't deduct mileage, home office, or travel. With a properly documented plan under IRC §62(c), your company reimburses you tax-free. Includes the Augusta Rule — renting your home to the business for up to 14 days/year, tax-free.

Full breakdown: The Accountable Plan for Contractors →

4. The SALT Bridge (PTET) — Deduct State Taxes the IRS Says You Can't

Lever: Rate | Typical savings: $10,000-$25,000/year

The $10K SALT cap means a California contractor paying $55,000 in state tax can only deduct $10,000. PTET moves the payment to the entity level — no cap. Over 35 states offer this. Model the QBI interaction before celebrating.

Full breakdown: PTET / SALT Cap Workaround for Contractors →

5. Cash vs. Accrual — The Accounting Method Nobody Discusses

Lever: Timing | Typical savings: $20,000-$80,000+ in the switch year

Cash method means you don't owe tax on invoices sitting in accounts receivable. For contractors under the ~$30M threshold, cash method is almost always better. Switching via Form 3115 can generate a $50,000+ one-time adjustment.

Full breakdown: Cash vs. Accrual for Contractors →

6. Defined Benefit & Cash Balance Plans — Shelter Six Figures, Legally

Lever: Timing + Person | Typical savings: $50,000-$100,000+/year in deductions

A 401(k) maxes at $23,500. A defined benefit or cash balance plan can defer $150,000-$300,000+/year depending on age and income. Stack them and drop your effective rate from 37%+ to under 24%.

Full breakdown: Defined Benefit Plans for Contractors →

7. Family Payroll & Kid Wages — Shift Income and Build Generational Wealth

Lever: Person | Typical savings: $3,000-$8,000/year per child + compounding

Children earn up to $14,600 tax-free. Business gets the deduction. Route earnings into a Roth IRA — $7,000/year for 4 years at 8% becomes $700,000+ by age 65. FICA exempt for sole props; not for S-Corps.

Full breakdown: Paying Your Kids in the Family Business →

8. Cost Segregation — Turn Buildings Into Cash-Flow Machines

Lever: Timing | Typical savings: $50,000-$200,000+ in accelerated deductions

A cost seg study reclassifies 20-40% of a building from 39-year to 5/7/15-year categories. Already own the building? A look-back study catches up cumulative missed depreciation in one year via Form 3115.

Watch the passive trap: If you own the building personally and rent to your S-Corp, the deduction may be suspended. This is where cost seg and the participation switch work together.

Full breakdown: Cost Segregation for Contractors →

9. The Participation Switch — Unlock Passive Losses Against Active Income

Lever: Character | Typical savings: unlocks $50,000-$300,000+ in trapped deductions

Many contractors own rental properties with suspended passive losses from cost seg or depreciation. Three fixes: Real Estate Professional status (750+ hours), short-term rental conversion, or self-rental recharacterization. Each has specific tests, documentation, and tradeoffs.

10. Mega Backdoor Roth — $70,000+ Into Tax-Free Retirement

Lever: Person + Timing | Typical savings: $40,000-$50,000/year into tax-free growth

The total 401(k) plan limit is $70,000. Max your regular deferral, add employer match, then stuff the rest with after-tax contributions and immediately convert to Roth. Requires plan amendment — most off-the-shelf plans don't include this. This is CFO design work.

11. State Residency & Nexus Planning — Same Income, Lower Rate

Lever: Jurisdiction | Typical savings: $30,000-$60,000+/year

California taxes at 13.3%. Texas, Florida, Nevada — zero. On $400K, that's a $53,000 annual difference. But California audits leases, school enrollment, geolocation, voting, and doctor visits. Substance matters more than ZIP code.

12. R&D Tax Credit — Yes, It Applies to Contractors

Lever: Rate | Typical savings: $25,000-$100,000+/year

Custom installation methods, proprietary HVAC designs, estimating software, process innovations — these may qualify under §41. The credit is dollar-for-dollar, not just a deduction. Combined with §174A expensing, the benefit compounds.

What to Do Next

If you're a trade contractor doing $3M-$8M and you recognize gaps in your current tax strategy, here's the honest assessment:

Your CPA probably handles compliance well. But compliance and strategy are different jobs. A CPA reports what happened. A CFO makes sure there's more profit to report.

The strategies above aren't secrets — they're in the Internal Revenue Code. The problem is execution: knowing which fit your situation, modeling numbers before you act, setting them up to survive an audit, and coordinating them so they don't conflict.

Start by understanding why every $3M+ contractor needs a CFO — not just a CPA. Then make sure every strategy you implement is documented to survive an audit.

That's what I do. I work as a fractional CFO exclusively for trade contractors doing $3M-$8M. One niche. One engagement model. Closing the gap between what you bid and what you bank.