The “Lender/Manager” Structure: Deducting Your Family Office Expenses

Tax Tips / Family Office

The “Lender/Manager” Structure: Deducting Your Family Office Expenses

By Team BMT Feb 08, 2026

💡 Executive Summary

  • Problem: Since the 2017 TCJA, “investment expenses” (Sec 212) like Bloomberg terminals, analyst salaries, and office rent are no longer tax-deductible for individuals or simple trusts.
  • Solution: Restructure the Family Office into two entities: a Management Company (Manager) and a series of Family Funds (Lender/Investor).
  • Result: The Manager charges a fee to the Funds. This fee is “Business Income” (Sec 162), which allows the deduction of all operating expenses against it.
⚠️ THE “PROFIT MOTIVE” TEST
To qualify as a “Trade or Business” (Sec 162), the Management Company must strive to make a profit. It cannot just be a pass-through that charges exactly what it spends. It should charge a market-rate management fee (e.g., 1.0% – 1.5%) and potentially manage some outside capital to prove it’s a real business.

Running a Single Family Office (SFO) is expensive. A staff of 5, high-end software, and cybersecurity can cost $2M+/year. If you structure this incorrectly, that $2M is a personal expense paid with after-tax dollars. If you structure it correctly (Lender/Manager), it becomes a pre-tax business expense.

🧐 Core Mechanic: The Split
1. Management Co (LLC/C-Corp): Hires staff, pays rent. Charges “Management Fee” to Family Funds.
2. Family Funds (LLC/LP): Hold the assets. Pay “Management Fee” to Management Co.
3. The Magic: The Fund deducts the fee as a business expense (if active) or capitalizes it. The Management Co recognizes the fee as income but offsets it with salaries/rent.

Deductibility Comparison (Post-2017 TCJA)

Tax Treatment of $2M Operating Expenses
Traditional Structure (Sec 212) $0 Deductible (100% Lost)
Zero
Lender/Manager Structure (Sec 162) $2M Deductible (Fully Offset)*
Optimized

Section 212 vs. Section 162

Feature Section 212 (Investing) Section 162 (Trade/Biz)
Activity Managing own money Providing services for fee
Deductibility Suspended (TCJA 2017) Fully Deductible
Entity Type Personal / Revocable Trust LLC / C-Corp (ManCo)
“If your Family Office is just managing your money, it’s a hobby in the eyes of the IRS. If it’s charging fees and running like a hedge fund, it’s a business. Be a business.”
BMT designs for tax reality, not theory.