Why Family Offices Must Insource Tax Strategy Now
By Jacob Gamble, Principal — Jacob Gamble leads executive searches in investment banking, family offices, and asset management. His analysis has been featured in Fortune, Financial Times, Bloomberg Wealth, Business Insider, and other leading publications, delivering valuable insights on legacy preservation, aggressive growth, family offices, and topics at the intersection of investment, institutional strategy, and sustainable growth.
A family office managing assets of a billion dollars or more is essentially a private enterprise in its own right. It often spans multiple companies, holds diverse real estate assets, and manages sophisticated trusts.
With that level of activity, capital is always in motion, and every move has tax implications that can run into the millions.
Despite this, tax planning is still too often treated as an afterthought, relegated to outside firms or handled as a basic compliance duty. That’s a costly mistake worth millions of dollars for organizations of this scale.
Taxes are a core strategic lever and need to be treated as such. That means bringing it back inside your family office so that it is embedded with other key tasks.
Building tax expertise directly into your family offices gives you more than compliance. Senior leaders who have cut their teeth at Big Four firms and have years of experience working with ultra-high-net-worth families are best positioned to deliver rigorous oversight.
From Outsourcing to Insourcing
Outsourcing tax to a traditional CPA firm is a legacy model that is “good enough” at lower levels of wealth. However, it quickly becomes inadequate and risky as family portfolios reach nine or ten figures.
External providers are structured to deliver compliance, but not strategy. By contrast, insourced tax leadership ensures tax considerations inform every key decision.
For example:
- When your office contemplates a direct acquisition, tax leaders can model entity structures in real time and influence negotiations
- During capital allocation reviews, they can assess the after-tax impact of distributions versus reinvestments
- In estate planning, they can anticipate how generational transfers interact with philanthropic initiatives and tax reform
You can structure your tax leadership in accordance with the scope and scale of your office.
The role may be titled as follows:
- Chief Tax Officer (CTO): Suited to large, multi-entity family offices with international footprints, operating businesses, and direct investment activity
- Head of Tax: A senior leader who reports to the CEO or CFO
- Vice President of Tax: Often a rising next-gen exec with training and credentials from a major Big Four firm or similar institution
Here’s what they bring to the table. They can:
- Turn intricate ownership webs and deal structure into clear, workable strategies
- Instill institutional discipline in entity governance and reporting
- Provide a critical perspective during negotiations
- Weave multiple considerations into investment timelines
What matters is their ability to integrate tax into your family office’s day-to-day workflows.
Why Big 4 and Multifamily Experience Belongs in the Family Office
At this scale, pedigree and perspective are crucial. Here’s what to look for when insourcing tax processes:
Big 4 Experience Matters
Executives who cut their teeth at PwC, Deloitte, EY, or KPMG have been steeped in technical rigor. They are accustomed to thriving in complex compliance environments while handling high-stakes disputes. Execs with this pedigree understand how regulators view risk and can anticipate shifts in the tax landscape.
UHNW & Private Client Services Experience Matters Even More
The most effective family office tax leaders are those who transitioned from corporate tax practices into PCS or family enterprise groups. They bring fluency in structuring trusts, partnerships, philanthropic vehicles, and estate plans tailored for ultra-high-net-worth families.
Multifamily Office Experience Adds the Finishing Touch
Experience in multifamily offices adds another dimension — exposure to a wide array of family governance models, investment structures, and best practices. This perspective is valuable in building institutional-quality processes for a single family office while retaining the discretion and adaptability that wealthy families expect.
Taken together, this combination of Big 4 training, PCS specialization, and multifamily office exposure creates leaders uniquely capable of transforming tax into a core strategic function.
The Strategic Advantage
When tax leadership is insourced, the family office gains a set of advantages that extend well beyond compliance:
- Visibility: A unified source of truth for dozens of entities provides clarity and control
- Efficiency: Insourcing results in streamlined structures, more predictable cash flow, and reduced reliance on outside advisors
- Resilience: The ability to anticipate and adapt to shifting regulations, IRS examinations, and global tax reforms
- Integration: Tax strategy becomes a natural extension of investment, governance, and philanthropic decision-making
These capabilities create a competitive advantage. Families are able to reduce structural drag, deploy capital with a clearer understanding of after-tax returns, and better align investment strategy with long-term legacy goals.
The Cost of Delay and the Advantage of a Family Office
For many families, the reluctance to insource tax leaders stems from a sense that outsourcing “works well enough.” Compliance is handled, and filing is submitted on time. It can be particularly tempting to adopt this mindset if your outsourcing partner offers on-call advisors.
But in practice, this model often leads to missed opportunities and hidden costs that only surface years later. Consider the cumulative effect of under-optimized workflows across multiple jurisdictions.
A slightly higher effective tax rate can erode hundreds of millions of dollars from generational wealth when compounded over a decade. Similarly, a failure to anticipate changes in estate or gift tax law can force a family into reactive restructurings that are expensive.
Don’t delay insourcing. The longer you wait, the higher the risk of compounding governance and compliance headaches. Without a dedicated internal tax leader, investment and legal teams may operate in silos, making decisions without a unified after-tax perspective. That lack of integration reduces agility at precisely the moment your clients need it most.
The message is clear. Waiting carries a heavy price tag that your office and your clients will have to pay. Proactively acting to insource tax matters gives you control over outcomes that shape your legacy.
The Bottom Line
For billion-dollar family offices, the question is no longer whether to insource tax; it’s how quickly. The complexity of multi-entity, multi-jurisdictional wealth demands leadership that is present at the decision-making table, not operating from the sidelines.
Whether you are an established family office with a long history or a newly created entity just beginning to chart your path, Cowen Partners understands that this is your legacy. Your family office requires robust leadership to navigate the complexities of wealth management, multigenerational planning, and investment strategy.
Bringing in a chief tax officer, head of tax, or vice president of tax with Big 4 and multifamily office backgrounds can transform this key area of your business processes into a driver of strategy. Families who take this step position their offices to preserve wealth, capitalize on opportunities, and weather the inevitable cycles of regulatory and market changes.
Steward: Executive Leadership for Families Who Think in Generations
Steward, the dedicated family-office practice of Cowen Partners Executive Search, helps families secure executive leaders who preserve legacy, enhance stewardship, and position the enterprise for long-term success.
Whether the need centers on a disciplined Chief Investment Officer, a forward-looking Chief Financial Officer, or a steady, operationally minded Chief Operating Officer, our senior-partner-driven approach ensures a search defined by discretion, alignment, and strategic clarity.
For multigenerational families, first-generation wealth creators, and newly formalized family offices, we tailor every engagement to your governance structure, investment posture, and family objectives. The result is leadership that strengthens operational resilience while honoring the values that anchor the family’s identity.
We specialize in identifying executives who bring both technical competence and principled judgment—leaders capable of navigating complexity, supporting continuity, and executing decisions that stand the test of time.
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