What a Family Office Costs

Why Family Office Costs Are Hard to Summarize in One Number

A family office is the organizational infrastructure a family builds around significant wealth — and infrastructure comes in many sizes. A founder who sold her logistics company and wants professional oversight of a concentrated portfolio has very different needs from a three-generation family running two operating businesses, a private foundation, and residential properties across four states. Because there is no single definition of a family office and no required minimum to form one, the cost range is genuinely wide.

The most useful way to approach costs is to break the budget into its component parts, understand which costs are fixed and which vary with activity, and then compare what those parts look like across different structures. Every dollar figure on this page is illustrative — actual costs depend heavily on geography, talent markets, asset complexity, and family preferences.

Fixed Costs vs. Variable Costs

Fixed costs are expenses a family office carries regardless of how busy a given year turns out to be. They include salaries and benefits, office space or home-office infrastructure, core technology subscriptions, and baseline insurance policies. These costs create the "floor" of the annual budget and are largely predictable.

Variable costs rise and fall with activity. A year with three direct investments will generate more legal, accounting, and travel spend than a quiet year with none. Families who are active in private equity or direct investing commonly budget a separate line for due diligence expenses — third-party accountants, lawyers, and consultants hired to evaluate a specific deal — because those costs can spike significantly in an active deal year.

The Full Cost Anatomy

Compensation and Benefits

Compensation is almost always the largest single line item in a family office budget. The exact figures depend on the role, the market, and whether the family is headquartered in a high-cost city or a smaller metro. The table below shows illustrative annual total compensation ranges (salary plus benefits, excluding bonuses) for common roles. All figures are illustrative examples only.

A fully staffed single-family office with senior leaders across investments, finance, tax, and operations can easily carry a compensation budget of $1.5 million to $4 million or more per year before any variable bonuses. Families commonly offer performance bonuses or profit-sharing arrangements on top of base compensation to attract institutional-quality talent.

Legal and Compliance

Legal costs fall into two buckets: ongoing and transactional. Ongoing legal work covers entity maintenance, contract review, family governance documents, and estate planning updates. Transactional legal work covers a specific deal — reviewing a term sheet, negotiating a purchase agreement, or structuring a new trust. Families commonly budget an illustrative $50,000 to $200,000 per year for routine legal work, with deal-by-deal costs layered on top. Readers must work with qualified attorneys on any legal structure or document; this page does not provide legal advice.

Accounting, Tax, and Audit

Family offices typically engage outside CPAs for tax return preparation, even when an internal tax director handles planning. A family with multiple entities — holding companies, trusts, operating company interests, and individual returns — can face an illustrative $80,000 to $300,000 or more in annual outside accounting and tax preparation fees. An audit, required for some entity types and useful for internal governance in others, commonly adds another illustrative $30,000 to $100,000. Readers must work with qualified CPAs on tax matters.

Technology

The technology stack for a family office typically includes consolidated reporting software, portfolio accounting tools, a document management system, and cybersecurity infrastructure. A lean setup relying on outsourced platforms might spend an illustrative $20,000 to $60,000 per year on software subscriptions. A mid-sized office with a more customized, integrated stack commonly spends an illustrative $80,000 to $200,000 or more. See Family Office Technology and Family Office Software, Category by Category for a deeper breakdown.

Investment Platform Costs

Beyond staff compensation, running an investment program carries its own costs. Custody and brokerage fees, separately managed account minimums, and external manager fees (typically quoted in basis points) are real line items. Families investing in private funds also encounter capital call administration, Schedule K-1 processing costs, and subscription document management. These costs are partly fixed (platform access fees) and partly variable (tied to how many managers or funds are in the portfolio).

Insurance

A complete family office insurance program commonly includes umbrella liability insurance, directors and officers insurance for family members who sit on boards, cyber insurance, and property coverage for residences and collectibles managed through the office. An illustrative annual insurance budget ranges from $30,000 to $150,000 depending on the number of properties, entities, and the family's risk profile. Insurance and Risk Management covers the full topic.

Office Space and Operations

Some family offices occupy dedicated office space; others operate from a principal's existing business premises or entirely remotely. A dedicated office in a major metropolitan area might cost an illustrative $50,000 to $200,000 per year in rent, utilities, and facilities expenses. Remote and home-office setups compress this cost substantially.

Travel, Concierge, and Personal Operations

When a family office handles concierge and lifestyle services — travel coordination, household staffing, and property management — those costs flow through the budget too. Families commonly separate the family's personal consumption from the office's operating costs, but the line can blur when the office manages household staff directly.

Due Diligence and Deal Expenses

Families active in direct investing or co-investments set aside a dedicated due diligence budget. This covers outside accountants doing a quality-of-earnings analysis, legal counsel reviewing deal documents, and sometimes industry consultants or technical experts. An illustrative per-deal diligence budget might run $25,000 to $150,000 depending on deal complexity, with the total annual line dependent entirely on deal volume.

Illustrative Total Budget Bands by Structure

Pulling the categories together, the illustrative annual operating budgets below give a sense of scale by structure type. These are broad ranges; a family's actual number may fall outside them. All figures are illustrative examples only.

The question of whether a given budget makes economic sense relative to the assets it serves is covered in depth at When a Family Office Makes Economic Sense.

How Outsourcing Compresses Cost at Small Scale

The primary lever families use to reduce the fixed cost burden is outsourcing — replacing full-time employees with specialized service providers engaged on a project or retainer basis. An internal-vs-outsourced analysis typically shows that a family with a simpler asset picture can get many of the same services (investment management, tax preparation, reporting, compliance) for a fraction of the cost of a fully staffed office, simply by purchasing those services externally rather than hiring for them.

The tradeoff is control, integration, and responsiveness. A virtual family office — a coordinated network of outside specialists organized around the family's needs — represents the leanest version of this model. The organizational structure a family chooses directly determines where its cost lands on this spectrum.

When the Cost Is Shared: Multi-Family Offices

A multi-family office (MFO) is a platform that serves multiple unrelated families, spreading the fixed cost of staff, technology, compliance, and infrastructure across a shared base. Instead of owning the entire budget, each client family pays an asset-based fee — typically quoted in basis points on assets under management — or a flat annual retainer, or some combination of both.

The cost comparison below is illustrative. It uses a hypothetical family with an illustrative $50 million in investable assets, comparing the approximate cost of running a dedicated single-family office against engaging an MFO relationship. All figures are illustrative examples only.

The cost advantage of the MFO model at this asset level is significant. That said, MFO fees commonly exclude certain services families assume are covered: dedicated estate planning, bespoke tax strategy (as opposed to return preparation), direct deal sourcing, and personal concierge services. Families evaluating an MFO relationship should ask providers for a detailed schedule of what is included in the platform fee and what is billed separately.

The Multi-Family Office article covers the structure and tradeoffs in full detail, and the Single vs. Multi-Family Office comparison page walks through the decision framework families commonly use.

The relevant question is rarely "what does a family office cost?" — it is "what does this specific set of services cost, and what is the most efficient structure for delivering them to this family at this stage?"

Managing and Right-Sizing the Budget Over Time

Family office budgets are not static. Families commonly build out capacity incrementally — starting with a lean, outsourced model and adding internal staff as complexity and asset scale justify the fixed cost. A single hire, such as an internal controller, might eliminate several outside accounting invoices that collectively cost more than the salary.

Periodic cost reviews, benchmarked against the services actually consumed and the value delivered, help families avoid the "mission creep" that causes budgets to expand past what the asset base can efficiently support. The economics page provides a framework for evaluating whether the office's total cost is proportionate to its assets and complexity. Families building a new office will also find the practical sequencing covered in How to Build a Family Office From the Ground Up useful for planning a realistic first-year budget.