General Contractor Saves $41K/Year with S-Corp Restructuring

The Problem

This client operated a residential remodeling business as a sole proprietor, generating $1.1M in gross revenue and $580,000 in net profit on Schedule C. The client was paying full self-employment tax of approximately $44,200 on the net profit (15.3% on the first $168,600 plus 2.9% Medicare on the balance). The client employed four subcontractors on 1099s and two W-2 employees, but had never considered entity restructuring. There was no retirement plan, no accountable plan, and no vehicle depreciation strategy despite owning a $72,000 work truck used 90% for business.

The prior bookkeeper handled payroll for the two employees and filed quarterly 941s but had no involvement in tax planning. The client's tax preparer was a solo practitioner who filed the Schedule C correctly but never discussed S-Corp election, retirement plans, or deduction optimization. Over the prior five years, the client had overpaid an estimated $175,000 in self-employment taxes. The work truck had been deducted using the standard mileage rate rather than actual expenses with depreciation, leaving significant deductions uncaptured.

AE Tax Strategy

1. S-Corp Election and Reasonable Compensation Under IRC §1362 and §3121

We filed Form 2553 for S-Corp election and established reasonable officer compensation at $120,000 based on BLS data for construction managers in the Charlotte, NC metro area. This removed $460,000 from the self-employment tax base, saving $25,800 in FICA taxes annually. The reasonable compensation was supported by a formal analysis considering the client's job duties (project management, client relations, estimating, on-site supervision) and comparable salaries for similar roles in the construction industry.

2. Solo 401(k) with Employer Match Under IRC §401(a)

We established a Solo 401(k) plan with the maximum employee deferral of $23,500 and an employer contribution of 25% of W-2 wages ($30,000), sheltering $53,500 from current taxation. At the client's marginal rate of 32% federal plus 4.75% North Carolina state, this produced $19,600 in income tax savings. The total incremental benefit after deducting $4,200 in annual S-Corp compliance costs (payroll processing, additional state filing, registered agent) was $10,000 attributable to the retirement plan.

3. Accountable Plan + Vehicle Section 179 Under IRC §62(a)(2)(A) and §179

We implemented an accountable plan for home office reimbursement ($7,200/year), cell phone and internet ($2,400/year), and continuing education ($1,800/year). Additionally, we reclassified the work truck from standard mileage to actual expense method and took Section 179 depreciation on the $72,000 vehicle (qualifying as over 6,000 lbs GVWR under IRC §179(b)(6)(B)). The first-year vehicle deduction alone was $64,800 (90% business use x $72,000). Combined with ongoing accountable plan reimbursements, this produced $5,200 in annual tax savings beyond the vehicle's first-year impact.

Before & After Comparison

Tax Category	Before	After	Savings
Self-Employment / FICA Tax	$44,200	$18,400	$25,800
Retirement Plan Tax Savings	$0	$10,000	$10,000
Accountable Plan + Vehicle	$0	$5,200	$5,200
Total	$44,200	$3,200	$41,000

Key Takeaways

• Construction business owners with net profit above $100,000 are prime candidates for S-Corp election due to the significant self-employment tax savings on distributions.
• Vehicles over 6,000 lbs GVWR (common work trucks and SUVs) qualify for full Section 179 expensing up to the business-use percentage — a deduction often missed by basic tax preparers.
• The actual expense method for vehicle deductions typically produces significantly larger deductions than the standard mileage rate for newer, heavier vehicles.
• Construction contractors with consistent subcontractor relationships should also evaluate worker classification under the IRS 20-factor test to avoid 1099 misclassification penalties.