Client Profile
| Industry | Dental Practice + Real Estate + E-Commerce |
| Annual Revenue | $1,600,000 (Dental) + $320,000 (RE) + $280,000 (E-Commerce) |
| Entity Type | S-Corp (Dental) + LLC Partnership (RE) + S-Corp (E-Commerce) + Management C-Corp |
| State | Pennsylvania |
| Key Metric | Combined household income $780K, 3 active businesses, both spouses active, ages 49 and 47 |
| Annual Tax Savings | $91,000 |
The Problem
This husband-wife team operated three separate businesses: a dental practice generating $1.6 million (husband), a real estate rental portfolio generating $320,000 in gross rental income (wife), and an e-commerce business generating $280,000 (wife). Each business had been set up independently with different accountants and different entity structures. The dental practice was an S-Corp with the husband taking $680,000 in total distributions. The real estate was held in a partnership LLC with no cost segregation. The e-commerce business was a sole proprietorship with all income subject to self-employment tax.
No coordinated tax planning had been done across the three businesses. The couple was filing jointly but not optimizing income allocation, retirement plan stacking, or entity structure to minimize their combined $780,000 in household income. Each business had its own basic retirement plan, but there was no coordination to maximize the aggregate contribution limits across all entities.
AE Tax Strategy
1. Entity Restructuring and E-Commerce S-Corp Election Under IRC §1366 and §162
We elected S-Corp status for the e-commerce business and set reasonable compensation for the wife at $65,000, allowing $95,000 in distributions to avoid self-employment tax. We also established a C-Corp management company that provided administrative, HR, and compliance services to all three businesses, creating deductible management fees and capturing C-Corp fringe benefits including health insurance ($36,000/year), life insurance ($3,600/year), and an accountable plan ($24,000/year). Annual FICA savings and entity optimization: $28,000.
2. Stacked Retirement Plans Across Entities Under IRC §401(a) and §404
We implemented a coordinated retirement plan strategy across all entities. The dental S-Corp established a defined benefit plan allowing the husband (age 49) to contribute $168,000 annually, plus a 401(k) with $23,500 in employee deferrals. The e-commerce S-Corp implemented a Solo 401(k) for the wife with $23,500 in employee deferrals and $16,250 in employer contributions. The management C-Corp contributed an additional $15,000 to a profit-sharing plan. Total annual retirement contributions: $246,250. We ensured controlled group rules under IRC §414(b) and (c) were properly analyzed and that the businesses did not form a controlled group requiring aggregated testing. Annual tax savings from stacked retirement contributions: $36,000.
3. Real Estate Cost Segregation and REPS Under IRC §168 and §469(c)(7)
The wife qualified as a Real Estate Professional under IRC §469(c)(7) by spending 780 hours annually managing the rental portfolio, which constituted more time than her e-commerce activities (620 hours). We performed cost segregation studies on the rental properties totaling $1.4 million in basis, reclassifying $490,000 to shorter recovery periods. With REPS status, the accelerated depreciation generated non-passive losses that offset the couple's active income on their joint return. Annual real estate tax savings: $27,000.
Before & After Comparison
| Tax Category | Before | After | Savings |
|---|---|---|---|
| E-Commerce S-Corp + Management C-Corp | $0 | $28,000 | $28,000 |
| Stacked Retirement Plans | $14,000 | $50,000 | $36,000 |
| REPS + Cost Seg (Annual) | $3,800 | $30,800 | $27,000 |
| Total (Annual Ongoing) | $17,800 | $108,800 | $91,000 |
Key Takeaways
- Husband-wife teams with multiple businesses should coordinate tax planning across all entities to optimize income allocation, retirement contributions, and entity structure on their joint return.
- Stacking retirement plans across separate businesses, including defined benefit plans, 401(k)s, and profit-sharing plans, can generate combined annual contributions exceeding $250,000 when controlled group rules are properly navigated.
- A spouse managing a real estate portfolio can qualify as a Real Estate Professional under IRC §469(c)(7) if real estate hours exceed hours spent in any other trade or business, converting rental losses from passive to non-passive.
- C-Corp management companies serving multiple family businesses capture fringe benefits that are taxable in S-Corps and create centralized deductions for shared administrative services.