AJ Bell Review: Best Platform for Shares and Larger Portfolios

This AJ Bell review is for anyone weighing up a mainstream, well-established UK investment platform that will not overcharge them as their portfolio grows. The short version: AJ Bell is one of the strongest all-rounders in the market, especially if you hold individual shares or investment trusts, because it caps the fee on those holdings. It is a touch pricier than the zero-fee newcomers for a pure fund portfolio, but it buys you a long track record, a proper ISA and SIPP range, and no nasty surprises. Here is how it stacks up on the things that actually matter: cost.

The quick verdict

AJ Bell is worth using if you want a big, reliable platform with a full range of accounts and a fee structure that stays sensible as your pot grows. It shines for share and investment-trust investors thanks to the monthly cap on custody charges, and for larger portfolios where a percentage fee on a rival would run away with your returns. It is less compelling if you only hold funds and want the absolute lowest headline fee, where zero-commission platforms undercut it. For most long-term investors who value stability, it earns its place.

Platform fees

AJ Bell charges a tiered platform (custody) fee. On funds you pay 0.25% a year on the first slice of your holdings, with the percentage stepping down on larger balances, which keeps it competitive for bigger fund portfolios.

The headline feature is the cap on shares. Holdings such as individual shares, investment trusts and ETFs are charged the same 0.25% but capped at a flat monthly amount: around £3.50 a month in an ISA or dealing account, and around £10 a month in a SIPP. That cap is what makes AJ Bell so attractive for share investors, because above a certain portfolio size the fee simply stops growing. Fees do change, so confirm the current figures on the AJ Bell charges page before you act.

Dealing charges

Buying and selling costs are flat, not percentage-based, which again favours larger trades. Share deals cost a few pounds each, and fund deals are cheaper still. AJ Bell also runs a regular investing service that lets you drip-feed money in monthly at a much lower cost, and in 2026 it moved to make regular investing free, which is a genuine boost for anyone paying in a set amount every month. As with all fees, check the live rates before relying on them.

ISA and SIPP

AJ Bell offers the full set of tax wrappers: a Stocks and Shares ISA, a Lifetime ISA, a Junior ISA, a SIPP and a general dealing account. The ISA is where the share cap makes it one of the most cost-effective homes for a diversified portfolio of shares or investment trusts. The SIPP is a strong, low-cost option for consolidating old pensions, with the same capped structure on shares, though note that a SIPP exit fee applies if you later transfer the pension away. If you are deciding where money should go first, see our guide to SIPP vs ISA.

Where AJ Bell wins

Two groups benefit most. Share and investment-trust investors get the capped custody fee, so a growing portfolio does not mean a growing percentage bill. And larger investors of any kind gain from the tiered fund fee and flat dealing charges, which together mean AJ Bell often works out cheaper than a flat-percentage rival like Hargreaves Lansdown once your pot is sizeable. It also covers your existing provider’s exit fees, within limits, when you transfer a large enough account across, which softens the cost of switching. For how to move a portfolio, read our guide to transferring a Stocks and Shares ISA.

Where it falls short

No platform is perfect. For a pure fund portfolio, AJ Bell’s 0.25% fund fee is beaten by the zero-commission platforms that have entered the market, so cost-focused fund-only investors can pay less elsewhere. The SIPP exit fee is a mark against it if you think you might move your pension. And the app and website, while solid, are more functional than slick. None of these are dealbreakers, but they are the trade-offs for a big, established platform. For a head-to-head with the newer entrants, see our Trading 212 vs InvestEngine vs Vanguard comparison.

Is your money safe with AJ Bell?

AJ Bell is a long-established, FTSE-listed UK platform authorised and regulated by the Financial Conduct Authority. Your investments are held in nominee accounts, ring-fenced from the firm’s own money, and eligible claims are covered by the Financial Services Compensation Scheme up to £85,000 per person if the platform itself were to fail. That protection covers platform failure, not investment losses: the value of your investments can still fall. You can confirm the current cover on the FSCS website.

Who should use AJ Bell?

Choose AJ Bell if you hold shares, ETFs or investment trusts and want the custody fee capped, or if you have a larger portfolio where a flat-percentage platform would eat your returns. It is also a sound, no-drama home for an ISA or a consolidated SIPP. Look at the zero-fee platforms instead if you only hold funds and want the lowest possible headline cost. For the wider field, see our guide to the best investment platforms in the UK.

Frequently asked questions

Is AJ Bell a good investment platform? For most long-term investors, yes. This AJ Bell review found it is a large, well-established and FCA-regulated platform with a full range of ISAs, a SIPP and dealing accounts. It is particularly strong for share and investment-trust investors thanks to a monthly cap on custody fees, and for larger portfolios where a flat-percentage rival would cost more.

How much does AJ Bell charge? AJ Bell charges a tiered platform fee starting at 0.25% a year on funds, with the fee on shares, ETFs and investment trusts capped at a flat monthly amount in each account. Dealing charges are flat per trade, and regular investing moved to free in 2026. Fees change, so check the current figures on AJ Bell’s charges page before investing.

Is AJ Bell cheaper than Hargreaves Lansdown? Often, yes, especially for larger portfolios and for share holdings. AJ Bell’s platform fee starts lower than Hargreaves Lansdown’s on funds, and its capped share custody fee means a big share portfolio costs less to hold. For very small fund-only portfolios the difference is smaller, so compare against your own holdings.

Does AJ Bell have an exit fee? The dealing and ISA accounts do not charge a general exit fee, but the SIPP applies a transfer-out fee if you move your pension to another provider. Factor that in if you think you might consolidate elsewhere later. Always check the current charges schedule, as fees can change.

Is my money safe with AJ Bell? AJ Bell is authorised and regulated by the Financial Conduct Authority, and your investments are held in ring-fenced nominee accounts. Eligible claims are protected by the Financial Services Compensation Scheme up to £85,000 per person if the platform fails. That protects against platform failure, not against your investments falling in value.