Family offices can save millions with this tax strategy but it can strain family ties

The One Big Beautiful Bill Act’s permanent suspension of miscellaneous itemized deductions has renewed family-office interest in the Lender model, which may allow investment expenses to be deducted if the office qualifies as a trade or business. An EY tax partner said the infrastructure may generally require at least $300 million in investable assets, while lawyers stressed that the 2017 Tax Court ruling depends on each office’s facts and that adopting the model can bring costs, family-ownership trade-offs and IRS scrutiny.

Analysis

The investable signal is a modest increase in demand for specialist tax, legal, and family-office operating advice—not a broad earnings catalyst. Any benefit to advisory firms is likely diffuse and difficult to isolate; EY and ArentFox Schiff are not publicly traded. Listed wealth managers should not be presumed to lose assets: qualifying for this treatment requires a genuine operating model, and the tax benefit may not justify internalizing investment management.

The underappreciated risk is governance, not just an IRS challenge. Performance-linked compensation and professional hiring can make the office more commercially credible while reallocating investment upside, downside, and control among relatives. That can prompt family fragmentation or a return to external managers, limiting how many offices actually adopt the structure. Offices with passive portfolios or weak investment capabilities may incur staffing and entity costs without securing the intended tax treatment.

Over the next 1–3 months, expect advisory inquiries rather than a measurable public-market earnings effect. Over 6–18 months, watch for implementation evidence and IRS or court scrutiny; adverse rulings or enforcement could quickly chill adoption. The contrarian read is that renewed interest may be overstated: a legal roadmap is not a safe harbor, and the required operating substance may consume much of the expected savings. No direct, high-conviction public-equity trade is supported by the available information.

Key Decisions for Investors

• No directional trade: the article supports a niche increase in professional-services demand, but identifies no listed beneficiary or evidence of material revenue exposure.
• Do not short listed wealth managers on an assumed shift in-house. Treat actual asset outflows or a disclosed change in family-office mandates as the trigger for reassessment.
• Monitor IRS guidance, audit activity, and court decisions for evidence that the operating-business standard is tightening or being applied consistently; adverse developments would weaken the adoption thesis.
• For any prospective public-market exposure to wealth or tax-services providers, verify reported family-office revenue and client flows before underwriting an earnings catalyst.