Hargreaves Lansdown and AJ Bell are UK investment-platform businesses, not funds into which every client’s money is pooled. They administer tax wrappers, hold assets through custody and nominee arrangements, process dealing and cash, and provide information or advice under defined permissions. Revenue can come from percentage-based custody or platform charges, fixed fees, dealing and foreign-exchange charges, retained interest on client cash, advice and management fees on own-brand investments. Their scale and disclosure dates differ. HL’s last full public-company year ended 30 June 2024, when it reported £155.3 billion of assets under administration, 1.882 million active clients, £764.9 million of revenue and £396.3 million of statutory pre-tax profit. It was acquired and delisted on 25 March 2025, so those figures should not be presented as current 2026 results. Listed AJ Bell reported 723,000 platform customers and £108.7 billion of platform AUA at 31 March 2026; first-half revenue was £183.0 million and underlying pre-tax profit £79.0 million. The real comparison is channel and revenue architecture: HL’s very large direct-to-consumer franchise versus AJ Bell’s dual D2C and advised-platform model. Client assets should be segregated from corporate money, but segregation does not remove market loss, operational failure, cash-bank exposure or the need to understand FSCS limits.
A wealth platform is the account, administration and custody layer between an investor and many underlying investments. It can make buying funds, shares, bonds and cash products feel like one service, even though the economic claims sit with different issuers and banks. That convenience produces powerful recurring revenue, but it also concentrates technology, records, service and pricing decisions in the platform operator.
This comparison explains Hargreaves Lansdown and AJ Bell as businesses; it does not rank their products for an individual investor. It connects to Kurums’ UK pensions and asset-management guide, regulatory map and open-data infrastructure guide. Fees and terms change, so current provider documents govern any decision.
What is the strategic difference?
HL is built around a very large D2C franchise; AJ Bell combines a D2C platform with an advised platform serving financial advisers and their clients.
Why does cash matter?
Platforms can earn net interest by placing client cash with banks, making the rate passed to customers and fee interaction important conduct issues.
Are platform assets the company’s assets?
Client money and custody assets should be segregated under applicable rules; AUA is not the platform company’s own balance-sheet wealth.
What does an investment platform actually do?
A platform opens and administers accounts, records beneficial ownership, handles subscriptions and withdrawals, routes trades, settles transactions, collects dividends and tax documents, and supports transfers. It may operate ISAs, general investment accounts and self-invested personal pensions through group entities. The interface is one product, but custody, banking, execution, fund administration and pension trusteeship can involve several legal entities.
The platform is distinct from a fund manager. Buying a third-party fund creates exposure to that fund; the platform provides access and custody. Both HL and AJ Bell also offer own-brand investments, which adds an asset-management relationship. An investor must therefore separate platform charge, product charge, transaction cost, advice fee and cash return rather than reducing the service to one advertised percentage.
What is the difference between AUA and AUM?
Assets under administration measure client assets serviced on the platform, including investments managed by third parties. The platform does not usually choose those investments and cannot book AUA as corporate assets. AUA drives scale and often fee revenue, but market appreciation can increase it without one pound of net customer inflow.
Assets under management refer to investments for which a group entity makes portfolio decisions. AJ Bell reported £9.8 billion of AUM alongside £108.7 billion of platform AUA at March 2026. The two measures can overlap where an own-brand fund is held on the platform, which is why group totals may remove double counting. Net flows, market movement and acquisitions should be reconciled before comparing growth.
How is Hargreaves Lansdown positioned?
Hargreaves Lansdown built one of the UK’s largest direct-to-consumer investment franchises around research, service and a broad product shelf. Its platform includes funds and shares, ISAs, SIPPs, advice, workplace services and Active Savings, which distributes deposits from partner banks. The scale gives it brand reach and a very large installed client base.
In the year to 30 June 2024, HL reported 1.882 million active clients and £155.3 billion of closing AUA, up 16%. Net new business was £4.2 billion and market movement contributed £17.1 billion. Those are the latest full public annual-report figures used here. HL was acquired by a consortium led by CVC, Nordic Capital and an ADIA subsidiary and delisted on 25 March 2025, reducing public reporting frequency and comparability.
How is AJ Bell positioned?
AJ Bell operates two principal platform channels. Its D2C proposition serves investors who select investments themselves, while AJ Bell Investcentre provides platform infrastructure to advisers and their clients. The dual model broadens distribution and lets the group serve different advice preferences without treating every customer as self-directed.
At 31 March 2026, AJ Bell had 723,000 platform customers—189,000 in the advised channel and 534,000 D2C—and £108.7 billion of platform AUA. It added a record 79,000 net platform customers in the half-year and recorded £4.2 billion of net inflows. These are current listed-company disclosures, so comparison with HL’s June 2024 baseline must preserve the different dates.
Which accounts and tax wrappers sit on a platform?
General investment accounts hold taxable investments. Stocks and shares ISAs shelter eligible income and gains within annual subscription rules. SIPPs add pension tax treatment, access restrictions, trustee and administration responsibilities. Junior and workplace variants can add further conditions. The wrapper changes tax and access; it does not turn the underlying investment into a safer asset.
Administration quality becomes critical when assets move between wrappers or providers. Contribution limits, tax relief, corporate actions and beneficiary instructions need accurate records. A platform may use separate regulated entities for execution, fund management and SIPP operation. Investors and analysts should use the legal-entity disclosures and FCA register, not assume that one consumer brand means one permission or compensation claim.
How do platform and custody fees generate recurring revenue?
Platforms can charge an ad valorem fee based on account or asset value, a fixed subscription or account charge, or a hybrid with caps and bands. Ad valorem pricing naturally rises with markets and net inflows, making AUA a powerful revenue base. Fixed pricing can be attractive to larger portfolios but requires enough accounts to cover service and technology cost.
AJ Bell reported £135.6 million of recurring ad valorem revenue in the six months to March 2026, up 21%, driven by higher average platform AUA. HL’s FY2024 revenue included £249.3 million from funds held on platform and £165.7 million associated with shares, described as platform fees, stockbroking commission and equity holding charges. Labels differ, so compare the fee base and margin rather than matching line names mechanically.
Why is client cash a major earnings line?
Uninvested cash arrives from contributions, dividends, sales and liquidity choices. A platform can place pooled client money with banks under client-money arrangements, receive interest and pass some to customers. The difference, after applicable costs, is retained interest or net interest income. Earnings therefore depend on cash balances, interest rates, the rate passed through and the banking counterparties used.
HL reported £260.7 million of FY2024 net interest earned on cash held in investment accounts, compared with total group revenue of £764.9 million. AJ Bell said higher average customer cash balances increased net interest income in HY2026. Cash monetisation is legitimate when disclosed and fair, but it can weaken as policy rates fall or customers invest. It also creates a direct test of customer value.
What is the FCA changing about cash and fee disclosure?
The FCA has scrutinised platforms’ treatment of retained interest and ‘double dipping’—retaining interest while also charging a platform fee on the same cash. In July 2026 it consulted on simpler investment disclosures, including prominent explanation when a firm retains some or all interest, the rate paid to the client and how that rate is set.
The consultation also proposed codifying an expectation that a firm should not charge a platform fee on cash while retaining interest unless it passes the interest through in full. At the review date these were proposals, not final rules. The durable analytical question is already clear: calculate the customer’s net cash return after retained interest and any platform fee, then compare it with accessible alternatives and the operational reason for cash.
How do dealing and foreign-exchange charges work?
Share, exchange-traded fund and bond transactions can generate fixed dealing commissions, telephone-dealing charges or spreads. Overseas securities may create foreign-exchange revenue based on transaction value. These lines are more activity-sensitive than custody fees: market volatility, tax-year deadlines or speculative episodes can raise trades without increasing long-term assets.
AJ Bell’s transactional-fee revenue rose 37% to £34.4 million in HY2026, partly because elevated overseas-share activity increased FX revenue. HL reported £133.9 million of stockbroking transaction fees in FY2024. Neither number should be treated as a like-for-like pricing comparison: customer scale, product definition and reporting periods differ. Track trades per customer, revenue per trade and retention after activity normalises.
What role do own-brand funds and portfolios play?
A platform can earn an investment-management charge when clients hold funds or managed portfolios run by a group entity. This deepens the revenue relationship beyond administration and can provide simple diversified solutions. AJ Bell Investments reported £9.8 billion of AUM at March 2026. HL’s FY2024 revenue included £53.2 million of annual management charges on HL funds.
Vertical integration also creates conflicts. The platform controls the shelf, communications or tools through which customers encounter products and may earn more on proprietary investments. Governance should demonstrate value, product oversight and fair presentation of alternatives. Adoption is a useful commercial metric, but performance after fees, suitability where advised and customer understanding are the more important outcome tests.
Where are client assets held?
Platforms commonly register securities in the name of a nominee while recording each customer as beneficial owner. Client money is held under FCA Client Assets Sourcebook arrangements and should be segregated from the firm’s own cash. Reconciliations between platform records, custodians, fund managers and banks are essential because legal segregation is only useful if ownership records are accurate.
Segregation aims to return assets if the platform fails; it does not guarantee instant access or eliminate every shortfall. Administration, fraud, failed reconciliation, custody-chain complexity and insolvency costs can delay recovery. Overseas holdings may introduce sub-custodians and local law. Platform due diligence should therefore include CASS audit findings, controls, incident history and recovery capability—not merely capital ratios.
What does FSCS protection cover—and not cover?
FSCS may compensate eligible investment claims up to £85,000 per person per authorised firm when a regulated provider or adviser has failed and cannot meet a valid claim. It does not compensate poor investment performance. The claim depends on the regulated activity, legal entity and circumstances, so the presence of a platform brand does not automatically protect every asset.
Cash can be more complicated. If eligible money is held as a deposit with a failed UK-authorised bank, the deposit-protection limit is £120,000 per eligible person per authorised firm from 1 December 2025, subject to beneficiary and aggregation rules. Client money at several banks can interact with deposits held directly under the same banking licence. Investors should read the platform’s bank allocation and FSCS explanation rather than add limits mechanically.
How do guidance and regulated advice differ?
Research, screeners, model lists and educational material can help a self-directed investor decide without constituting a personal recommendation. Regulated advice considers a customer’s circumstances and recommends a course of action under an advice service. The boundary affects suitability, documentation, liability and price. A trusted brand can make generic content feel personal even when it is not.
Platforms increasingly use digital nudges and segmented communications. Consumer Duty raises the standard for foreseeable outcomes, understanding and support, but does not convert execution-only activity into advice. Operators need clear journeys, testing and escalation for vulnerable customers. Investors should know whether they are selecting, receiving guidance or paying for a regulated recommendation before relying on a tool.
Why are transfers and service quality strategic?
A customer can transfer cash or, where supported, move investments in specie without selling. In-specie transfer avoids time out of the market but requires compatible assets, accurate records and coordination between providers. Re-registration delays, rejected instructions and poor status information create customer harm even when assets remain safe.
Service is also an economic moat and a cost. HL’s FY2024 report said client retention fell to 91.4% and acknowledged service and digital experience problems, while still adding 78,000 net clients. AJ Bell emphasised market-leading service in HY2026. Survey claims should be tested against complaint, call, transfer and incident data. A platform is trusted most when customers need access during volatile markets or life events.
How do scale and channel mix shape profitability?
Platforms carry large fixed costs in technology, regulation, custody, service and brand. Once the system is reliable, additional AUA and accounts can contribute strongly to profit. HL’s FY2024 revenue was £764.9 million, statutory pre-tax profit £396.3 million and underlying pre-tax profit £456.0 million. AJ Bell’s HY2026 revenue was £183.0 million and underlying pre-tax profit £79.0 million, a 43.2% underlying margin.
Scale is not identical to operating leverage. A D2C platform spends on marketing and customer support; an advised platform serves advisers, integration and back-office requirements. SIPP administration, transfer work and regulatory change can add cost faster than accounts. Revenue margin in basis points can rise when cash or trading is strong and fall when rates normalise, even if the franchise remains healthy.
How should HL’s private ownership change the comparison?
Private ownership can support a multi-year technology transformation without quarterly public-market pressure. It can also introduce acquisition debt, return targets and less frequent public disclosure. The consortium said the acquisition would accelerate HL’s transformation plan, but the absence of listed-company interim results means external analysts cannot update every operating metric on AJ Bell’s cadence.
The correct response is not to fill the gap with estimates presented as fact. Use HL’s last audited public baseline, clearly date it, then analyse subsequent regulatory filings and company updates on their own terms. AJ Bell’s March 2026 numbers are more current, not automatically more comparable. Ownership, period length, metric definitions and one-off items must be reconciled before drawing conclusions about growth or profitability.
How should an investor or operator assess a wealth platform?
Track customer growth, gross and net flows, market movement, AUA, AUM, retention and assets per customer. Map revenue into platform or custody fees, cash margin, transactions, advice and asset management. Then stress the mix for lower interest rates, weaker markets and subdued trading. A diversified model should remain profitable without relying on customers leaving excessive cash uninvested.
Operationally, examine CASS controls, service levels, transfer times, cyber resilience, outages, complaints, product governance and the clarity of fees. For customers, total cost and appropriate service matter more than platform size alone. Sustainable advantage is the combination of trust, reliable administration, usable technology, fair value and enough scale to keep investing through the next regulatory and market cycle.
Frequently Asked Questions
Is a wealth platform the same as a fund manager?
No. A platform administers accounts and custody and provides access to investments. A group may also run funds, but that is a separate asset-management role.
Why are HL’s and AJ Bell’s latest figures from different dates?
HL was acquired and delisted in March 2025, so its last full public annual report covers June 2024. AJ Bell remains listed and reported to March 2026.
Are client investments on the platform company’s balance sheet?
They should generally be held under client-asset and custody arrangements separate from corporate money, although operational and custody risks remain.
Does FSCS protect an investment that falls in value?
No. FSCS does not compensate ordinary market underperformance. It may cover eligible claims when an authorised firm fails and cannot meet its obligations.
How do investment platforms make money from cash?
They can receive interest from banks holding pooled client money, pass a rate to clients and retain the difference after applicable costs and disclosures.
Primary Sources and Further Reading
This guide prioritises regulators, payment-system operators and company filings. Figures are the latest available at the July 2026 review date.
- Hargreaves Lansdown — Report and Financial Statements 2024
- Hargreaves Lansdown — Results and presentations archive
- CVC, Nordic Capital and ADIA — Completion of HL acquisition
- AJ Bell — Interim results to 31 March 2026
- AJ Bell — FY2025 final results
- FCA — Investment Platforms Market Study
- FCA — CP26/24 simplifying consumer investment disclosures
- FCA — Treatment of retained interest on customers’ cash
- FCA Handbook — Client Assets Sourcebook
- FSCS — Investment compensation and protection
- FSCS — Banks, building societies and credit unions
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