Why Modern Family Offices Are Outsourcing Core Functions
Few family offices now try to do everything in-house. Legal, tax, estate planning, technology and much of the investment work are increasingly bought in from specialists, while the office itself keeps the decisions, the information and the oversight. Done well, outsourcing gives a family depth and continuity it could not afford to build alone. Done carelessly, it hands control of the family's affairs to people who do not answer to the family.
From building everything to choosing what to own
The classic single family office was built on a simple idea: hire a small, trusted team and keep the family's affairs under one roof. That model still has real strengths. Staff know the family, its history and its preferences, and confidentiality is easier to manage when fewer outsiders are involved.
But the work has changed. A family with assets in several countries now deals with cross-border tax reporting, beneficial ownership registers, bank periodic reviews, cyber threats, alternative investments with long reporting chains and a growing body of regulation. No team of five or ten people can be expert in all of it. The question for most families is therefore no longer whether to outsource, but what to keep, what to buy in, and how to stay in control of both.
What the data shows
Industry surveys point in the same direction. The Family Office Operational Excellence Report 2025, published by Campden Wealth and AlTi Tiedemann Global from a survey of 146 family offices in North America, Europe and Asia, found that legal services, estate planning and tax work are the most frequently outsourced services, with between 86% and 96% of family offices using external providers to some degree for these services. It also found that 79% outsource at least part of their investment activities.
The same report highlights the pressures behind this. Seventy per cent of family offices reported difficulty hiring, and 65% were concerned about retaining key staff. Costs also fall sharply with scale: among the North American offices surveyed, large offices spent around 20 basis points of assets under management on running costs, against 40 for mid-size and 61 for small offices.
A smaller, country-level study tells a similar story. PwC Italy's Family Office Survey 2026, covering 48 family offices based in Italy, reports that legal and accounting services are fully outsourced by 71% of respondents and tax services by 63%, with most of the remainder partly outsourced. By contrast, half of the offices keep asset allocation and investment strategy fully in-house.
These surveys use different samples and methods, and none of them describes every family. Taken together, though, they suggest a clear pattern: specialist and compliance-heavy work tends to go out; strategy, decisions and the family relationship tend to stay in.
Why families outsource
Cost and scale. A full-time tax specialist, general counsel, head of IT security and fund accountant would cost more than many offices can justify for the volume of work involved. Buying these skills by the hour or by the mandate turns a fixed cost into a variable one, and gives smaller offices access to the kind of infrastructure that only the largest can build.
Depth of expertise. A specialist firm sees the same problem across many clients and jurisdictions. A question that would be new to a generalist in-house team, such as the reporting consequences of a change of residence or the documents a bank will expect for a Source of Wealth review, is often routine to a provider that handles it every week.
Continuity. A small office depends heavily on a few people. When a long-serving CFO retires or a key employee leaves, knowledge can leave with them. A well-documented outsourced arrangement, supported by a firm rather than an individual, can reduce that key-person risk.
Independence. External providers can give a second view that in-house staff, who report to the family, may find harder to give. An independent accountant or compliance reviewer is more likely to point out an inconsistency between what the family has told two banks, or to question a transaction that does not fit the family's declared profile.
Technology and security. Reporting platforms, secure document storage and cyber-security monitoring require investment and constant maintenance. For many offices, renting this capability is more realistic than building it.
What families risk losing
Outsourcing is not free of cost, and the most important costs are not on the invoice.
Control of information. Every provider that holds family data becomes another place where the family's story is recorded, and another place where it can be recorded differently. Without a central point of coordination, a family can end up with several versions of its own structure chart.
Accountability. When something goes wrong, outsourced arrangements can blur who was responsible. A missed filing deadline may sit between the accountant, the corporate service provider and the lawyer, each assuming another was dealing with it.
Confidentiality. More providers means more people with access. Where providers process personal data on the office's behalf, EU data protection law expects that relationship to be governed properly. Article 28 of the General Data Protection Regulation requires processing by a processor to be governed by a binding contract that covers, among other things, confidentiality, security measures, the use of sub-processors and the deletion or return of data when the service ends.
Alignment of interests. A provider paid on assets under management, on transactions or on hours worked has incentives that may not match the family's. These incentives are not improper in themselves, but they need to be visible and understood.
Regulatory status. In some jurisdictions, the provision of family office services is itself a regulated activity. In Luxembourg, a Law of 21 December 2012 governs family office activity. According to the Luxembourg financial regulator, the CSSF, only members of the regulated professions listed in the law, or persons authorised by the CSSF as a Family Office, may carry it out. The law does not apply to services provided only to a single family. Families engaging an external provider should therefore check that the provider is entitled to offer what it is offering, in the jurisdiction where it operates.
The hybrid model: keep the decisions, buy the expertise
Most families end up somewhere between the fully in-house office and the fully outsourced one. The hybrid model works best when the family is clear about which functions it must own.
Usually kept in-house:
strategy, investment policy and the final decision on significant transactions;
the relationship with the family and its governance bodies;
the central record: the structure chart, the KYC and Source of Wealth file, and the register of what has been disclosed to whom;
oversight of every external provider.
Commonly outsourced:
legal, tax and estate-planning advice;
accounting, consolidation and statutory reporting;
audit and independent assurance;
investment management for specific asset classes, and custody;
IT infrastructure and cyber-security monitoring;
specific compliance work, such as screening, due diligence reports and preparation for bank reviews.
The principle is simple: the office should never outsource its ability to understand and direct its own affairs. If no one in the family's own team can explain the structure, check a provider's work or answer a bank's question without phoning three advisers, the office has outsourced too much.
An illustration
The following example is fictional. Names and details are invented and any resemblance to real persons is coincidental.
The Marlow family's wealth comes from a logistics business sold several years ago. Their office, a team of four, manages investment portfolios in two countries, a portfolio of holiday properties held through companies, and a charitable foundation.
When the office's long-serving finance director announces her retirement, the family considers replacing her like for like. Instead, they map every function the office performs and ask, for each one, who is best placed to do it.
Statutory accounting and consolidation go to an accounting firm, with a monthly reporting pack in a fixed format. Tax compliance in both countries goes to a tax adviser in each, with a shared calendar of deadlines. Cyber-security monitoring goes to a specialist provider under a written contract covering data handling and deletion on exit. The office keeps investment decisions, the relationship with the family and a new role: a head of operations who maintains the central file, reviews each provider's output and chairs a quarterly meeting with all of them.
A year later, running costs are broadly similar, but the family has deeper expertise in each area, written procedures that no longer depend on one person, and a single place where the full picture is held.
A practical checklist before outsourcing
Have we mapped every function the office performs, and decided which ones we must keep?
Does each provider have a written mandate setting out scope, deliverables, deadlines, fees and who it may take instructions from?
Is the provider entitled to provide the service in its jurisdiction, and is it supervised where that is required?
Are data handling, confidentiality, sub-contracting and the return of documents on exit covered in the contract?
How is each provider paid, and does that create an incentive we need to manage?
Who in our own team reviews each provider's work, and how often?
Is there one central record of the structure and of what has been disclosed to banks and providers?
Do we have an exit plan if a provider fails, is acquired or loses a key person?
How Kuts & Co supports family offices
Kuts & Co helps families and their offices organise the parts of a hybrid model that most often fall between providers: family governance support, compliance files such as KYC profiles and Source of Wealth and Source of Funds reports, Enhanced Due Diligence, and the coordination of advisers across jurisdictions. Legal, tax, audit, banking and other regulated services are provided by independent licensed firms, which Kuts & Co coordinates alongside the family's existing advisers.
This article is for general information only and does not constitute legal, tax or investment advice.
Sources
Campden Wealth and AlTi Tiedemann Global — The Family Office Operational Excellence Report 2025 (survey of 146 family offices, fieldwork November 2024 – March 2025) — https://www.campdenwealth.com/sites/default/files/FO_Op_Exc_2025_report_digital.pdf
PwC Italy — Family Office Survey 2026 (48 family offices based in Italy; data for 2025) — https://www.pwc.com/it/it/publications/family-office/docs/2026-report-family-office-survey-en.pdf
CSSF — Communiqué de presse 13/03: Law of 21 December 2012 in relation to the Family Office activity — 21 January 2013 — https://cssf.lu/wp-content/uploads/CP1303_Family_Office_210113_EN.pdf
Arendt & Medernach — A new legal and regulatory regime for Family Offices in Luxembourg (newsflash) — 31 January 2013 — https://www.arendt.com/wp-content/uploads/2024/04/2013.01.31_nf.pdf
Regulation (EU) 2016/679 (General Data Protection Regulation), Article 28 — text consulted via https://gdpr-info.eu/art-28-gdpr/ — accessed 9 November 2026
