When does a family need its own office instead of an MFO?

A family may consider its own office when its financial affairs require dedicated staff and sustained coordination. Wealth matters, but the choice between a single family office and a multifamily office also depends on complexity, cost and the work the family wants to manage.

What changes when a family creates its own office

A single family office, or SFO, is an organization dedicated to one family's financial and administrative affairs. A multifamily office, or MFO, supports several families through shared staff and resources. Either structure may coordinate investments, reporting, tax planning and estate matters, along with philanthropy and household administration.

The distinction is who the organization supports and who directs its work. With an SFO, the family takes responsibility for staffing and oversight, along with budgets and systems. An MFO provides services within an agreed relationship, with the scope set by its capabilities and engagement terms.

Having an office does not require bringing every function inside. Family Office Club research notes that even large family offices use MFOs and private banks for some functions.

Asset thresholds are reference points, not rules

Family Office Club research contains several different views on the wealth needed to support a dedicated office. These estimates should retain their attribution because they reflect different assumptions about staffing and services.

• Slough places viability at about $100 million to $250 million.
• Diamond cited $250 million in 2023 and $500 million or above for direct-deal teams in 2026.
• Botticelli places dedicated staffing at about $500 million to $700 million.
• Erulin says there is no fixed minimum.

These figures do not establish a universal point at which a family needs an SFO. An office coordinating outside advisers has a different workload from an office sourcing investments, reviewing transactions and managing operating assets. The relevant comparison is the cost and responsibility of delivering the family's actual service requirements.

Complexity and control can matter as much as wealth

A family's workload may include operating businesses, multiple trusts, properties and philanthropic entities, as well as relatives with different priorities. The issue is how much recurring coordination these arrangements require and whether the existing providers can handle it clearly.

A dedicated office can give the family greater control over hiring and reporting priorities, along with the allocation of staff time. That control comes with management obligations. Someone must supervise employees, evaluate outside providers and approve budgets, while maintaining continuity when people leave.

Investment activity also affects the decision. Richard Wilson of Family Office Club says most MFOs offer limited support for direct deals. A family expecting substantial transaction work needs to establish what its provider will actually do. An internal investment team is one possible structure, but it also creates recruitment and oversight demands, along with operating responsibilities.

Compare the full service scope and cost

An SFO budget extends beyond investment staff. It may include administration and technology, plus reporting, insurance, office space and outside legal or tax work. Some costs continue regardless of investment performance or how often the family uses a service.

MFO charges also require a scope review. Wilson says fees vary with the services provided, and concierge or philanthropic work may carry extra charges, as may legal and fund work. A comparison needs to identify what is included, what is excluded and who coordinates work across providers.

Published cost surveys need context. Family Office Club research cites J.P. Morgan average costs ranging from $875,000 to $6.6 million, according to Slough. Erulin cautions that family office surveys can rely on self-selected, unaudited samples. Those figures describe reported experience, not a budget for a particular family.

A hybrid structure can address specific gaps

The choice does not have to be a complete move from an MFO to an SFO. A virtual family office coordinates outside specialists. A hybrid structure combines internal staff with external providers. An embedded office places family office functions within an existing business organization.

These arrangements can separate the need for a dedicated coordinator from the need for a full internal team. Their effectiveness depends on clear responsibilities, access to records and a defined process for resolving decisions.

Liquidity events, generational transitions and the departure of a key adviser can prompt a review. A useful review documents the work required, the people accountable for it and the costs of each structure. This page provides education, not advice on which arrangement a family should adopt.

FAQs

Does reaching a wealth threshold mean a family needs an SFO?

No. The experts cited in Family Office Club research give different thresholds. Service requirements, staffing costs, complexity and the family's willingness to manage an organization also affect the decision.

Can a family keep using an MFO after creating its own office?

Yes. Family Office Club research notes that even large offices use MFOs and private banks for selected functions. Internal staff and external services can operate together.

Does an SFO need an internal investment team?

No. A dedicated office can coordinate outside investment providers while retaining internal responsibility for administration and reporting, along with oversight. Its staffing depends on its intended work.

Sources

• Family Office Club research database
• Family Office Club research database
• Family Office Club research database
• Family Office Club research database
• Family Office Club research database
• Family Office Club research database
• Family Office Club research database
• Family Office Club research database

Related: all guides, the directory, calculators. For events and peer access, see FamilyOffices.com.