Asset and wealth management covers two related but distinct businesses: managing pooled investments for institutions and funds, and managing the affairs of wealthy individuals and families. They share an investment discipline and almost nothing else — different clients, different regulatory perimeter, different reporting, and different reasons for calling in an accountant.
Two businesses, not one
Asset management runs money on a mandate: pooled funds, segregated institutional portfolios, and the operational machinery around them — dealing, custody, valuation, fund accounting and investor reporting. The client is usually another institution, and the constraints come from the mandate and the fund's own documentation.
Wealth management serves individuals and families, and the investment portfolio is only part of it. Tax position, trust and company structures, cross-border residence, succession and philanthropy all sit alongside it, and the adviser who ignores them will produce a portfolio that performs well and a client outcome that does not.
The distinction matters commercially because firms increasingly do both, and the governance that works for one does not automatically satisfy the other.
The regulatory frame
Be careful with generalisations here, because the prudential regime is narrower than the sector label. The investment firm prudential regime — IFPR — applies to relevant FCA investment firms, not to every business that could reasonably be called an asset or wealth manager. Firms under other prudential regimes are treated differently, and a bank-owned wealth arm is not in the same position as a standalone MiFID portfolio manager.
For firms within IFPR, own funds must be at least the highest of the permanent minimum requirement, the fixed overheads requirement — broadly a quarter of annual fixed costs — and, where applicable, the K-factor requirement, which scales with assets under management, client money held, client orders handled and daily trading flow. The ICARA is where the firm assesses whether those floors are enough given the harm its business could cause, and it is an ongoing process rather than an annual document.
Where client assets are held, the client asset rules apply on top, with their own reconciliation, records and assurance obligations. Our guides to the CASS regime and asset management audit cover those.
What the accounting work actually involves
Four engagements come up repeatedly, and they are genuinely different pieces of work with different objectives:
- Financial statement audit of the management company, and separately of the funds — a true and fair opinion at a materiality level set for the accounts;
- Client asset assurance, which reports on the firm's compliance with the client money and custody rules and is not part of the financial statement audit;
- Prudential and regulatory reporting — the returns, the capital and liquidity calculations, and the ICARA evidence;
- Controls reporting for institutional clients who want independent assurance over the firm's control environment, often in AAF form.
One standard audit opinion does not cover all four. A firm buying "an audit" and expecting the CASS position and the prudential returns to be covered by it has bought considerably less than it thinks.
Where the value leaks
In asset management, the recurring problems are operational rather than investment-related. Valuation of hard-to-price holdings, where the pricing policy is thinner than the holdings justify. Fee calculation, where a management or performance fee is computed on a basis the documentation does not quite support — an error that compounds across every investor and every period until someone reconciles it. Expense allocation between the manager and the funds. And delegation, where an outsourced administrator or custodian performs the control and the firm retains the responsibility without the oversight evidence.
In wealth management the leaks are on the client side. Structures that outlived the reason they were built — offshore trusts after the April 2025 reforms are the obvious current example. Portfolios managed without reference to the tax position, so gains are realised in the wrong year or wrappers are used in the wrong order. And succession left undocumented until it is urgent.
Reporting to investors and clients
Authorised funds have their own reporting cycle under the FCA's rules, with annual and half-yearly reports, and managers have to assess and report on the value their funds deliver. That is a governance obligation as much as a disclosure one — the assessment has to be done, evidenced and acted on, and a report concluding that everything is satisfactory without showing the work invites the question it was meant to close.
For offshore funds, the tax reporting regime runs in parallel and to a different timetable, which is a common source of confusion: an FCA report and a reportable income computation are not the same document and do not have the same deadline.
Choosing an adviser
The useful questions are narrow. Does the firm understand which prudential regime you are actually in, rather than assuming IFPR? Can it do the CASS work as well as the audit, and will it say plainly where one engagement stops? Does it have people who have seen a fee calculation reperformed and a valuation policy tested, rather than only the financial statements? And on the private client side, can the tax and the investment conversation happen in the same room?
Acumon works with investment firms and private clients through financial services audit and CASS audit work, with private client tax, trust tax and succession planning on the wealth side. If your firm holds client assets and has never had the CASS position tested separately from the audit, that is the gap worth closing first.