How to Set Up a Single-Family Office in the UK

A single-family office (SFO) is a dedicated organisation that coordinates work for one family. Setting one up in the UK begins with a decision about what work the family needs to own. Incorporating a company is only one possible step: the office may also need staff, contracts, bank access, data controls and, for some activities, regulatory permission.

The practical choice is between building a dedicated team, buying services from a multi-family office or other providers, and combining a small internal team with specialists. This guide takes that choice through the UK location, entity, cost and launch decisions. No asset value automatically makes an SFO necessary, and a family does not have to employ every specialist itself.

01First Decide What the Family Office Will Do

A family may need investment oversight, consolidated reporting, entity administration, tax and legal coordination, governance, philanthropy, property or household support. These are different workloads. A team that receives reports and coordinates advisers is different from one that recommends investments, exercises discretion or manages family assets.

Write a mandate in observable terms:

• People served: Name the family branches, trusts and companies that will receive each service. Record whether any unrelated person or outside investor could receive it later.
• Work delivered: For each recurring task, specify the input, output, frequency and person responsible. “Reporting” might include obtaining statements, reconciling holdings, drafting a consolidated report and getting it approved.
• Decisions retained: Identify who can approve a trade, sign a service agreement, change a bank payee, commit capital or release a family report. Preparation and authority need not sit with the same person.
• Work bought outside: Decide whether a bank, investment manager, accountant, lawyer, tax adviser or household provider will perform specialist work. Name the internal person who checks their output and handles exceptions.
• Service boundary: List tasks the office will not perform. If a request from another family branch or co-investor changes recipients or powers, require a fresh scope decision before taking it on.

The first choice is not “UK company or no UK company.” It is the service arrangement that can do the job sustainably.

The tables in this guide can be swiped horizontally on a phone.

An SFO can use outside investment managers, counsel and accountants; “single-family” describes whom it serves, not a rule that all work must be internal. If present advisers already produce timely, reconciled information and the family can authorize decisions reliably, an extra company and team may add cost without solving a gap. Our SFO definition and minimum-net-worth discussion explain the model and why wealth alone is a weak decision rule.

When should a family consider building? Look for recurring failures: no owner for records across entities; slow or conflicting advice; repeated investment, tax and estate coordination; privacy or control needs that providers cannot meet under a clear mandate; or a succession workload that needs continuity. Then price the proposed work, identify a family sponsor and compare a dedicated office with a scoped shared-service offer. If the sponsor cannot define the mandate, funding or decision authority, commission that design work before hiring a permanent team.

02Why Choose the UK, and What Could Change the Decision?

The UK can be a useful base when the family, staff or important advisers are there, or when its professional, banking and investment ecosystem serves the mandate. It may be the wrong operating base if the people who must make decisions, the assets to be administered or the services to be bought are elsewhere. A London address is not a substitute for a location decision.

Test the need for a UK presence: Write down which recurring task or decision actually requires people to work in the UK, then ask whether UK advisers could deliver it under contract while the family retains its present base. A local team earns its place when proximity, dependable access to people and providers, sustained workload and the approved budget together justify the added employment and operating duties. That is a family-specific comparison, not a legal wealth threshold.

For example, a family whose decision makers live in the UK and need daily coordination across UK staff, entities and advisers has a concrete reason to price a local team. A family living elsewhere that needs occasional UK legal and investment advice can first request a scoped provider offer without establishing a UK employer. Both families still need advice on the actual people, activities and tax facts; geography alone does not decide the model.

• People and access: Can the family recruit and retain the roles it actually needs? Can principals, trustees, providers and staff meet or work securely across locations?
• Services and assets: Are the relevant banks, custodians, managers, lawyers, accountants and property specialists accessible to the proposed entities? Check whether each provider will accept the ownership structure.
• Operating burden: Price premises, staff, employer costs, advice, systems and UK compliance against an MFO or provider-led alternative. Consider travel, immigration and the cost of maintaining work in more than one country.
• Authority and residence: Identify where each company is incorporated, where its highest-level decisions are genuinely made, where staff work and where assets sit. These can be different places with different tax and regulatory consequences.
• Family future: Would a UK office still serve the next generation if residence, assets, branches or decision makers change?

Registration jurisdiction, working city, tax residence and asset location must be recorded separately. A company may be registered in England and Wales, Wales, Scotland or Northern Ireland under the applicable Companies House route; it needs an appropriate registered-office address in that jurisdiction. That address does not prove where its real management occurs. HMRC's company-residence guidance treats UK incorporation as an ordinary residence basis, subject to statutory and treaty qualifications; central management and control is also relevant on its own facts. Board minutes should reflect real decisions, not manufacture a result.

Personal relocation also needs its own advice. Since 6 April 2025, the four-year foreign income and gains (FIG) regime has replaced the remittance basis. A qualifying person in the first four UK-resident tax years after at least ten non-resident years may claim relief on eligible foreign income and gains, subject to conditions and consequences for allowances. Incorporating an office does not create eligibility, and unused years cannot simply be saved for later.

For overseas assets, the inheritance-tax long-term-residence framework changed from 6 April 2025. The broad test involves UK residence for ten of the prior twenty tax years; departure tails, transitional rules and trust facts can matter. This is a separate personal and succession analysis. Do not present an office, a trust or a UK location as an automatic tax advantage. Compare the UK's actual service and family fit with the location guide before committing to a base.

03Choose the Office, Entity and Asset Structure

“Set up a UK family office” can mean employing people, contracting for services, forming a company, establishing a family investment company (FIC), moving an existing entity's management, or creating a trust or investment vehicle. Those actions have different owners and consequences. Draw the structure before filing.

A UK private company can employ staff and supply services, but it is not automatically the owner of family investments. A FIC may hold assets without being the employer or administrator. An LLP or existing overseas entity might suit a particular arrangement after legal and tax advice. Trusts and other holding structures need their own governance and tax analysis. Choose the operating form for the real services and people; choose each asset vehicle for its owners, obligations and investment purpose. Do not incorporate every possible form or treat them as interchangeable.

Map the chosen service model to a contracting and employment route. If existing advisers or an MFO perform the work, name the family entity that contracts with them and owns the resulting records and approvals. If an existing family entity will hire UK staff, test its powers, residence, charging and regulatory position. Form a new UK private company or advised LLP when the actual mandate justifies a separate employer or service provider and the family accepts its continuing duties. A family can keep overseas asset vehicles while buying UK administration or running a UK office. Changing where real decisions occur may itself change the tax and regulatory analysis.

Where a service company works for several family entities, document who receives each service and how costs or fees are allocated. Include records access, conflicts, errors, termination and transfer. A payment by one trust for another entity's work cannot be left to informal habit. The family-office structures guide expands the operating-versus-ownership distinction, while the org-chart guide helps assign roles.

1Check the activity, not the family-office label

Ask UK regulatory counsel to assess each entity, actual activity and recipient. Gathering statements and coordinating accountants, preparing investment research, making a personal recommendation, arranging a transaction, instructing a custodian and managing investments under discretion can have different outcomes. A narrow job description does not protect an office that performs broader work in practice.

The FCA's PERG 2.8 guidance sets out activity-specific exclusions and limits. No universal “family-office exemption” follows from the name. If an authorised provider is needed, compare buying that service with obtaining the relevant permission for the entity that would perform it. Permissions, applicable fees and capital requirements depend on the selected activity and entity; capital is not an annual fee.

The investment vehicle needs a separate analysis. In PERG 16, questions 2.50–2.52, the FCA discusses why a vehicle investing pre-existing family wealth without raising external capital may fall outside the alternative investment fund (AIF) definition, while stressing the relevant elements and qualifications. Outside participation calls for a fresh assessment; it does not create an automatic AIF verdict. A vehicle's answer does not resolve what the office's service company may advise, arrange or manage.

Record the proposed investors, capital-raising facts, contracts, activities and decision rights. Counsel's conclusion should say what staff may do now, what needs a licensed provider or permission, and which changes trigger review. Complete that before offering a service or granting trade authority.

Illustrative route decision: A family with two asset companies needs reconciled reports and is considering a UK analyst. It can price provider-led reconciliation against a retained controller. Before contracting, document the recipient entity, provider authority and data-access terms. Keep investment approval with the authorised asset-owner body while counsel resolves whether the analyst's actual research, recommendations or instructions require a different regulatory route. Choose a new employer only when those answers and the recurring budget support it. This is an operating illustration, not a legal or tax determination.

04What Does a UK Single-Family Office Cost?

There is no defensible UK-wide all-in SFO price in the evidence for this guide. The cost of a small coordination team, a specialist investment office and a provider-led arrangement will differ sharply. Compare one-time expense, annual operating expense and first-year cash needed for the actual mandate; keep assets and refundable deposits separate from fees.

The official charges below are dated inputs for particular filings, not the price of launching an office. As of the Companies House fee schedule effective 1 February 2026, digital company incorporation is £100 and paper incorporation is £124. A digital confirmation statement is £50 for the first statement in each twelve-month payment period; paper is £110. Other forms and channels have their own charges. Check the current schedule before filing.

Employer costs illustrate why salary alone is an incomplete number. For the 2026/27 standard category A, HMRC lists employer National Insurance at 15% above the £5,000 annual secondary threshold; employee categories, reliefs and director calculations can change the result. For eligible enrolled staff, the minimum employer pension contribution is normally 3% of qualifying earnings, not necessarily 3% of all salary. Obtain a payroll calculation for the actual people; do not add employee deductions as employer expense.

An organisation may also owe an ICO data-protection fee, depending on its processing, exemption and tier. Use the ICO self-assessment for applicability; its fee guide lists current annual tiers of £52, £78 and £3,763, with a direct-debit discount available. Paying a fee does not establish that the processing or international sharing is lawful.

For every shortlisted model, record three values: setup spending (filings, initial advice, recruitment, equipment and migration, with the accounting treatment of each item confirmed), annual operating expense (people, premises, advisers, systems and controls), and first-year cash needed (setup payments and recurring bills actually due that year, plus refundable deposits and required funding). State headcount, entity count, service output, quote date and exclusions. The annual run rate and first-year cash are different views of some of the same bills; do not add them together.

To make quotes comparable, specify the recurring work before requesting them. More retained staff tends to move the price into payroll and employer costs; more legal entities add books, filings and reconciliation; investment discretion may change permission and staffing needs; cross-border service raises contract, data and tax questions. Ask each provider what it includes, what remains with the family and what would trigger a new fee. These are cost drivers to quote, not a published UK SFO price range.

Here is a fictional comparison solely to show the arithmetic. These are invented amounts, not UK market prices or obtained quotations. Assume both cover the same reporting and coordination work, all annual charges are payable in the first year, the one-time amounts are expenses, deposits are refundable, and no other charge or tax is due. Actual equipment or fit-out may be capital spending; obtain the correct accounting treatment for real costs. Matching the headline service does not prove equal service standards, retained family work or exclusions.

For the provider route, £15,000 + £120,000 + £5,000 = £140,000 cash needed. Its first-year expense is £135,000 under the stated assumptions because the £5,000 deposit remains recoverable. The hybrid route needs £50,000 more cash and has £45,000 more expense in this illustration. The family must compare actual service standards, retained work, decision authority, resilience and its approved funding ceiling before choosing. If a real quote excludes a needed service or a deposit is non-refundable, revise the comparison. Count any additional required account or regulatory funding once, after excluding money already allocated to the listed bills. Mark every unquoted critical line unknown, not zero. The operating-budget guide provides the broader approval framework.

05The Setup Sequence: From Mandate to Working Office

These steps are dependencies, not a promise that every family needs a new company. A provider-led model may begin with contracts, instructions and data handoffs under existing entities. A dedicated employing company needs formation, payroll and governance work. Neither route is finished when an application is accepted.

1. Approve the mandate and model. Name the family sponsor, services, beneficiaries, reserved decisions, staff versus provider work and annual funding ceiling. Ask the family to approve what the office may not do.
2. Map activities, entities and tax. UK counsel assesses the actual FCA activities and vehicle/AIF facts; tax advisers review company form, residence, charges, personal relocation and cross-border consequences. Record unanswered points that affect form or permissions before committing staff to an activity.
3. Prepare identity, form and governance before filing. For a new company, select its registration jurisdiction and appropriate registered office; prepare name, activities/SIC, registered email, constitution, directors, shareholders/subscribers, share-capital or guarantee statements and people with significant control (PSCs), as applicable. Companies House identity verification became compulsory from 18 November 2025. Each proposed new director verifies identity and obtains a personal code before the incorporation filing. Director and PSC roles have separate submission requirements and date-specific windows; check each person's actual role and deadline rather than applying one 14-day rule to everyone. Adopt real delegation, conflict and signatory records.
4. Form only the entities needed. Submit the selected application after its required people, documents and codes are ready. A certificate confirms incorporation, not regulatory permission or operating readiness. A provider-led route may have no new-company filing at all.
5. Run premises, provider and banking preparation together. Arrange space suitable for staff and data, and contract with advisers and systems under the correct entity. As soon as ownership, activities and entity facts are defined, gather the bank's evidence while premises and provider diligence proceed. Banks separately assess controllers, source of wealth/funds and intended transactions; incorporation does not guarantee an account. Make signatories match valid authority and family policy. A registered-office address is not proof of where high-level decisions occur or staff work.
6. Employ and equip the team. Put contracts, supervision, immigration where relevant, payroll, pension, data access, cybersecurity and provider oversight in place. Register as an employer before the first payday and no more than two months before staff start being paid. Give every specialist output a named family-side recipient.
7. Test the first routine cycle before release. Trace one safely simulated or authorized investment item, one report figure and one changed-payee exception from source to approval. Confirm required legal permissions, bank mandates, independent payee verification and reporting authority before the first real routine transaction. Record failures and repair owners; a test is evidence of those controls, not a certificate of all UK compliance.

Companies House's ordinary online processing time is not an SFO launch timetable. Banking, recruitment, permissions, systems and provider contracts can follow different schedules. Maintain a dependency plan with an owner and actual completion evidence for each step.

06Regulatory Requirements and Ongoing Compliance

An office company, investment vehicle, trust, employer and principal may have different duties. Give each applicable obligation an entity, owner, reviewer and due date. The list below is an assessment map, not a blanket checklist certifying that every SFO must register with every regulator.

A UK-resident company is generally within Corporation Tax on its taxable profits; the amount and filings depend on the actual entity, income and reliefs. VAT depends on supplies and turnover, not family assets under management. Registration does not automatically permit recovery of all input VAT. Service charges across family entities need legal, tax and accounting treatment grounded in the contracts and work performed.

Privacy work is wider than paying a fee. Map identity, banking, health, household and investment data; decide lawful access, retention, processor terms, overseas transfers and exit. Where the office or a provider markets sustainable investments, test the actual FCA and other applicable rules rather than turning the family's voluntary ESG preferences into a universal disclosure duty.

07What Challenges Should a Family Plan For?

The hard part is often coordinating the work after the company exists. A costly team can still fail if its powers, records or provider boundaries are unclear. Put the following risks in the launch plan with an owner and a prevention test.

These are decision tests, not a prediction that each problem will occur. The family should choose a lighter model when its funding, authority or provider coverage cannot support the proposed office. If a regulated investment activity is central to the mandate, the answer may be an authorised provider or a differently designed service, not a narrower label on the same conduct.

08Will the Office Still Work in Five, Ten and Twenty Years?

An SFO can remain legally registered while losing the ability to serve the family. The family sponsor or authorised governance body should own a continuing review of mandate, cost, authority and provider fit. Trigger it when a branch is added, a principal relocates, a key person or provider leaves, a material asset or vehicle changes, or the service scope expands. The horizons below are planning lenses, not statutory review intervals or forecasts.

• Five years: Can it function without its usual person? Test a principal's incapacity, an absent executive and a late capital call. Identify lawful substitutes, account access, data recovery and the family member who can approve an exception.
• Ten years: Does it serve the next generation? Review branch representation, education, beneficiary information, succession of trustees/directors, reserved decisions and how new assets or households change cost allocation.
• Twenty years: Can it change or close? Test whether contracts, records and data can move to another team or provider; identify required approvals, retention duties and the custody and asset structures that remain after the office changes.

A UK office should not be chosen on the assumption that today's FIG eligibility, a particular person's residence status or a single executive's availability lasts for those horizons. Revisit the company, personal, trust and cross-border advice when facts change.

Send advisers a two-page family decision brief. Copy these fields for each route so the replies can be compared on the same scope:

Compare scoped provider, staffing and premises quotes with the same required output. Build when enduring work, control needs, valid authority and funded annual costs justify a team. Buy when a provider can deliver the work under acceptable contracts and family oversight. Defer the permanent office when the mandate, sponsor, funding or a material activity boundary is unresolved, while assigning preparatory and permitted provider work an owner and date. Record the chosen route, its conditions and the next decision maker.