An office for one family, a shared provider and a private bank can overlap in the services they offer. Compare their actual mandates: ownership, employment, investment authority, administration and contracts with outside specialists. A dedicated office gives a family a structure to direct; it also leaves the family responsible for sustaining that structure. Shared and outsourced arrangements move some work to a provider, with the scope defined by the engagement. The model descriptions below are a starting point, not a substitute for those terms. 1
Alternatives at a glance
| Model | The arrangement to examine |
|---|---|
Single-family office |
An office serving one family, with its own combination of employees and outside specialists. |
Multi-family office |
A firm or shared office serving multiple families; ownership, dedicated staffing and service breadth vary. |
Outsourced or virtual office |
An arrangement using external specialists, sometimes coordinated by a small internal team. Establish who owns the overall assignment. |
Private-bank family-office group |
Services within a banking platform. Separate planning and administration from investment management, custody, trust services and lending. |
Wealth adviser |
An advisory relationship that may address investment management and planning. Check the specific provision for administration and family operations. |
Operator or chief-of-staff arrangement |
An operational role to specify: who runs the work, who employs the team and which responsibilities remain with other advisers. The title alone does not answer those questions. |
Campden Wealth and RBC distinguish several single-family, multi-family and virtual arrangements in their September 2026 report. These are operating descriptions; firms can use the same words for different services. 1 The SEC's family-office exclusion is a separate federal securities-law test concerning family clients, ownership, control and public holding-out as an investment adviser. It does not establish a general legal category for every commercial use of “family office,” “private” or “virtual.” 2
Compare models
Read the table as a set of arrangements and verification questions. A provider's label cannot establish its staffing, authority or contract terms. The single-family and shared-office descriptions draw on Campden/RBC's taxonomy; the bank and adviser columns reflect the distinct functions shown in current primary-source service and disclosure documents. 1 3 4
| Model | Families served; ownership and control | Staff and employment | Service scope | Investment role | Contracting and continuity |
|---|---|---|---|---|---|
Single-family office |
One family. A family-owned office gives that family control of its structure; confirm the entities and decision rights. |
Family-office employees, external specialists or both. A dedicated office need not perform every task internally. |
Set by the family: investment oversight, administration, governance and other agreed work. |
May employ investment staff or appoint outside advisers and managers. Define discretion separately. |
Identify the employing entity and who signs specialist contracts. Record ownership of systems, data and work product. |
Multi-family office |
Multiple families. Ownership can sit with participating families, a commercial firm or another parent. |
Provider employees or affiliates; a dedicated relationship team can sit within a shared platform. |
Agreed advisory and administrative services. Broader capabilities do not establish what the fee includes. |
May advise, oversee managers or manage portfolios, depending on the entity and mandate. |
Determine which group company contracts for each service and what transfers when the engagement ends. |
Outsourced or virtual office |
An operating arrangement rather than one ownership form. The family may retain an internal coordinating team. |
A small internal team can use external providers; a commercial provider may also supply coordination. |
Selected functions or a wider mandate. Ask who resolves gaps between specialists. |
Can remain with existing advisers or be included in a separate investment mandate. |
Establish whether the family contracts directly with specialists or relies on the coordinator's agreements. |
Private-bank group |
A relationship with a bank or related entities; the family does not thereby own the service platform. |
Bank, trust-company or advisory personnel; check dedicated coverage and specialist availability. |
The menu may include planning, reporting, trust administration and support for an existing office. |
Distinguish investment advice or management from custody, deposits and lending. |
Map each service to its bank or affiliate agreement, fees and exit arrangements. |
Wealth adviser |
A client relationship with an advisory firm. Verify the firm's owners and relevant affiliates. |
Firm or affiliate personnel; team allocation is provider-specific. |
Investment advice and planning under the mandate; additional family-office work needs its own scope. |
Determine whether the adviser recommends decisions or has discretion to make them. |
Identify the adviser, custodian and any separate administrative provider. Check each agreement. |
Operator or chief-of-staff arrangement |
Establish whether the role serves one principal, several households or multiple unrelated clients. |
Ask who employs the lead operator and supporting team, and which people are dedicated. |
Specify administrative, staffing and vendor responsibilities, approval limits and exclusions. |
Do not infer an investment mandate from the operator title. Identify the person or firm responsible. |
Establish who hires, signs, owns records and systems, and can continue the operation after a change of provider. |
Provider information checked October 19, 2026. Examples explain distinctions; they are not rankings. See how we research providers.
Cost and minimums
A comparison needs a common scope before it needs a price. Set out the work to be purchased, then request the provider's fee, separately billed work and the costs that remain with the family.
| Measure | What it answers | What it does not establish |
|---|---|---|
Office operating budget |
What it costs to maintain the office's people, systems and other specified operations. |
The family's total investment, banking and professional expenses. |
Provider fee |
What a named firm charges for a defined engagement. |
Every outside cost or additional service. |
Minimum annual fee |
The minimum spending commitment for the service described. |
A minimum net worth or a usual total bill. |
Asset minimum |
The stated assets required for a relationship, account or program. |
The family's net worth or eligibility for another service at the same firm. |
Percentage fee |
The rate applied to a specified asset base. |
The dollar cost until the asset base, tiers and exclusions are known. |
This separation matters in actual disclosures. Tiedemann Advisors' March 27, 2026 Form CRS describes investment-management fees based on assets under management and says extended family-office services are typically charged at a flat fee. It does not publish a single bundled family-office price. 4 A quoted investment rate therefore cannot settle the cost of an administrative mandate.
The SEC family-office exclusion contains no net-worth minimum. Commercial eligibility and the economics of a dedicated team are separate questions. 2 Our cost guide explains fee bases, operating-cost evidence and the expenses to include in a proposal comparison.
Tradeoffs by situation
These are decision prompts drawn from the differences above, rather than recommendations for an individual family.
| Situation | Arrangements worth examining | The tradeoff to resolve |
|---|---|---|
The family wants to own its office and direct its staff. |
A dedicated single-family office, including a small team that buys specialist services. |
How much hiring, supervision, infrastructure and continuity planning the family will support. |
Several services are needed, but each would not occupy an employee. |
A multi-family office or a coordinated outsourced arrangement. |
Access to shared specialists versus control over personnel, priorities and response capacity. |
Investment advice works well; administration is fragmented. |
An administrative provider, operator or limited outsourced mandate alongside existing advisers. |
Whether someone will own the recurring work across firms, with clear authority and handoffs. |
Banking, borrowing and trust administration are central needs. |
A private-bank relationship, potentially alongside a separate office or coordinator. |
Which tasks the bank accepts, which sit with affiliates and which remain outside its remit. |
The problem is mainly portfolio advice and financial planning. |
A wealth adviser, with targeted tax or legal work as needed. |
Whether adding an office would solve a distinct operational problem. |
The existing office is difficult to supervise or replace. |
A revised internal structure, shared provider or hybrid arrangement. |
Which responsibilities should transfer and whether records, contracts and systems can move with them. |
Questions to choose a model
- Who is accountable for the complete assignment, including work done by other firms?
- Which people are dedicated to us, who employs them and who covers their absence?
- Which services are performed directly, supplied by an affiliate, coordinated or referred?
- Who may approve payments, sign contracts and make investment decisions?
- Can our existing investment, tax and legal advisers remain, and who will coordinate them?
- Which entity signs each agreement, and which charges sit outside the quoted fee?
- Who owns the records and systems, and what can we take when the arrangement ends?
- What work will the family still have to supervise?
The main comparisons in practice
Single-family office vs multi-family office
A dedicated office lets a family shape its organization around its own priorities. That choice carries an operating responsibility: roles must be filled, employees supervised and specialist gaps covered. A multi-family office supplies an existing organization that serves other families too. The important staffing question is which people are allocated to the family and which are shared, rather than whether every employee works for only one client. Campden/RBC's 2026 descriptions include family-owned and commercial multi-family offices as well as dedicated offices that outsource functions. 1
Ask both options to describe the same assignment. A dedicated investment team and a shared provider handling investments, reporting and administration are different service scopes; their headline costs cannot establish a winner.
Family office vs private bank
There can be substantial overlap. J.P. Morgan Private Bank's US service menu includes investment services, planning, governance and trust administration, as well as banking, lending and custody. It also describes working with a family's office and external attorneys. That is evidence of one bank's offering, rather than a definition of all private banks. 3
Decide which banking functions the family needs and which responsibilities require a separate employer, administrator or coordinator. A bank can support an office without taking responsibility for running it; the proposed agreement should make that boundary clear.
Family office vs wealth adviser
The distinction lies in the assignment. An investment-advisory engagement can include discretionary management, non-discretionary advice or planning. A family may separately need accounting, bill payment, governance support and coordination across entities. Tiedemann Advisors' disclosure illustrates the separation between its investment service and extended family-office work. 4
Broader need does not automatically require replacing an effective adviser. Ask whether the missing work can be specified and bought separately. The services guide provides a task-by-task framework.
Outsourced office vs a family-owned team
Outsourcing a function and outsourcing coordination are different decisions. A small family-owned team may retain control while buying tax, technology or investment expertise outside. A provider can take on a wider coordinating mandate. Campden/RBC describes a virtual single-family office as a small internal team using specialist external providers. 1
Specify who follows up when two specialists disagree, whose instructions govern and who keeps the complete record. An arrangement can have capable specialists and still leave that work with the principal.
Frequently asked questions
Is a multi-family office the same as a wealth manager?
The labels overlap in practice but do not establish identical services. A firm may offer investment advice alongside administration, governance or other family-office work. Compare the named service and legal entity; Tiedemann Advisors, for example, separates investment-management fees from extended family-office fees in its disclosure. 4
Is “private family office” a legal category?
The SEC family-office exclusion sets specific conditions for an investment-adviser exclusion. It does not create a separate category called “private family office.” Commercial use of that label still needs an explanation of the actual ownership, services and authority. 2
Can a family keep its investment adviser and outsource other work?
An arrangement can combine an internal team and outside specialists; Campden/RBC describes virtual offices on that basis. Whether a particular provider will work with the existing adviser, and on what terms, needs to be established in the proposed engagement. 1
Does using a private bank remove the need for an office?
That depends on the work assigned to the bank and the responsibilities left with the family. J.P. Morgan's US offering includes services for existing family offices, illustrating that the two can operate together. Map the required tasks before deciding whether the bank's mandate is sufficient. 3
Is there a minimum net worth for a single-family office?
The SEC exclusion sets no net-worth minimum. Its conditions concern family clients, ownership, control and public holding-out as an investment adviser. The cost of supporting a team and any provider's commercial minimum must be assessed separately. 2
Sources
- Primary: Campden Wealth/RBC, The North America Family Office Report 2026, published September 29, 2026; especially pp. 8, 32 and 44–45. Accessed October 19, 2026. Working model descriptions and surveyed service arrangements; not universal legal definitions.
- Primary: SEC, Family Office: A Small Entity Compliance Guide, 2011 rule. Accessed October 19, 2026. Specific federal investment-adviser exclusion, including its conditions and exceptions.
- Primary: J.P. Morgan Private Bank US, Family Office Services, undated service page. Accessed October 19, 2026. The bank's own stated services.
- Primary: Tiedemann Advisors, LLC, Form CRS, March 27, 2026, pp. 1–2. Accessed October 19, 2026. Applies to that adviser and the services described, rather than all AlTi entities.
Update trail
Research checked October 19, 2026. Request a correction.