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AJ Bell Fees, Accounts, and Who It Actually Suits in 2026

Key Takeaways

  • AJ Bell's 0.25% platform fee is capped at £42/year per ISA — the cheapest percentage-based platform for portfolios above £17,000
  • The SIPP share cap of £120/year is market-leading: a £500,000 ETF portfolio costs 0.024% vs £1,750/year at HL
  • On a £100,000 ISA with 12 monthly buys and 4 share trades, AJ Bell costs £62/year — vs £378 at HL and £398 at Fidelity
  • With gilt yields at 4.94% (May 2026), the SIPP's £120 cap makes AJ Bell uniquely cost-effective for holding individual gilts in a pension wrapper
  • Interest paid on uninvested cash is a silent differentiator — compare rates as carefully as platform fees, especially for drawdown investors holding cash buffers
  • Vanguard is cheaper below £17,000. Fidelity's £2,000 total cap wins above ~£500,000. AJ Bell owns the middle — which covers most UK investors
  • Eight consecutive years of Which? Recommended status (2019–2026) with 723,000+ customers — the platform consistently delivers

£42 a year. That's the most AJ Bell charges to hold an ISA, whether your portfolio is worth £17,000 or £500,000. At 3.75% Bank Rate — unchanged since December 2025 — every basis point of platform fees you avoid is a basis point of real return you keep.

The maths hasn't shifted since this article first ran in March. But everything around it has. UK gilt yields hold at 4.94% as of the latest May 2026 reading. Inflation sits at 2.8%. And the competitive landscape has moved: Interactive Investor reshuffled its plan structure, Fidelity's tiered pricing keeps getting more aggressive above £250,000, and HL's 0.35% uncapped fee looks progressively worse the longer your portfolio compounds.

I've re-pulled every number from AJ Bell's live charges page, cross-checked Hargreaves Lansdown, interactive investor, and Fidelity as of July 2026, and run the scenarios again. The broad conclusion holds — AJ Bell's fee caps deliver the best value for UK investors between roughly £17,000 and £500,000. But the details have shifted enough to change the recommendation for investors at the extremes.

The Fee Structure: What You Actually Pay

AJ Bell runs a charging model that's simpler than most competitors — and cheaper for the majority of UK investors. The headline: 0.25% per year on everything you hold, capped at £3.50 per month per ISA or dealing account (£42 per year maximum).

That cap is the entire thesis for this platform. AJ Bell gets cheaper as your portfolio grows. Percentage-based competitors get more expensive. The crossover point — where the cap kicks in — is £16,800. Above that, your platform bill stops.

Here's the dealing fee breakdown as of July 2026, confirmed against the live charges page:

  • Regular investing: £0 — completely free via monthly Direct Debit (minimum £25/month). This is the sleeper feature.
  • Online share dealing: £5.00 per trade (£3.50 if you made 10+ deals the previous month)
  • Fund dealing: £1.50 per deal (one-off; regular investing is free)
  • Foreign exchange: 0.75% on international trades (capped)

The chart tells the story in one glance. Vanguard's 0.15% account fee (capped at £375/year above £250,000) wins on portfolios below £17,000. Above that, AJ Bell's £42 cap dominates — and the gap widens with every pound of growth.

Interactive Investor's Core plan at £5.99/month (£71.88/year) stays flat regardless of portfolio size, but the catch: it caps you at £100,000. Cross that threshold and you're bumped to Plus at £14.99/month (£179.88/year). At £100,001, ii costs over four times what AJ Bell charges.

Fidelity's model is tiered: 0.35% below £250,000 on funds (with a £7.50/month flat fee on share holdings, capped at £90/year), dropping to 0.20% above £250,000. The ace: a £2,000 annual cap across all personal accounts. For very large portfolios, that single cap beats AJ Bell's per-account approach.

HL at 0.35% uncapped charges £350/year on a £100,000 ISA — over eight times AJ Bell's £42. Free regular investing on both platforms makes the platform fee gap the entire story.

For the definitive breakdown of flat-fee vs percentage-fee platforms, our platform fee comparison runs the exact maths for every portfolio size.

The SIPP: Where AJ Bell Pulls Ahead

If you hold a pension of any meaningful size, this is the section that matters. AJ Bell's SIPP pricing is more generous than the ISA structure, and the feature set is comprehensive.

Key SIPP charges as of July 2026:

  • Shares (ETFs, investment trusts, gilts, bonds): 0.25%, capped at £10/month (£120/year)
  • Funds: 0.25% on first £250,000, 0.10% on £250,000–£500,000, no charge above £500,000
  • Share dealing: £5.00 (£3.50 frequent dealer rate)
  • Fund dealing: £1.50
  • Regular investing: Free
  • Drawdown withdrawals: Free
  • Pension finder service: Free — AJ Bell tracks down and consolidates old workplace pensions at no charge

The SIPP cap on shares creates an extraordinary anomaly. At £48,000 in shares/ETFs, you hit the £120 annual cap and pay nothing more. Someone with £500,000 in a low-cost global ETF inside an AJ Bell SIPP pays £120/year — 0.024%. At HL, the same portfolio costs £1,750/year. That's a £1,630 annual saving.

Compounded over 20 years at a 5% real return, that £1,630/year difference adds roughly £54,000 to your retirement pot. Not from investing better — just from paying less.

Key features:

  • Tax relief added automatically — contribute £800 and AJ Bell claims the £200 basic-rate relief from HMRC
  • 25% tax-free lump sum from age 55 (rising to 57 from April 2028), subject to the lump sum allowance of £268,275
  • Free transfers in — AJ Bell covers exit fees up to £500 if your transferred pot is £20,000+
  • Outside your estate for inheritance tax

The minimum entry is accessible: £25/month via Direct Debit or a £500 lump sum.

One limitation: you can hold either a SIPP or a Ready-made pension with AJ Bell, but not both. If you want a managed solution for part of your pot and a DIY SIPP for the rest, you'll need a second provider.

With gilt yields at 4.94% as of May 2026, the SIPP cap makes AJ Bell uniquely compelling for investors building bond ladders or gilt portfolios inside a pension wrapper. You can hold individual gilts, earn near-5% yields, and pay no more than £120/year regardless of portfolio size. No other major UK platform offers that combination.

For a detailed walkthrough of SIPP costs at every portfolio size, see our AJ Bell SIPP fees breakdown.

The Numbers: What You'd Actually Pay at Each Platform

Here's what you'd pay annually holding a £100,000 ISA invested across funds and shares, making 12 regular monthly purchases and 4 one-off share trades per year. All figures confirmed against live platform charges pages as of July 2026.

PlatformAnnual Platform FeeRegular Investing (12 buys)4 Share TradesTotal Annual Cost
AJ Bell£42£0 (free)£20£62
Vanguard£150£0 (free)N/A (funds only)£150
Hargreaves Lansdown£350£0 (free)£27.80£377.80
Interactive Investor (Core)£71.88£0 (free)£15.96£87.84
Fidelity£350£18£30£398

Methodology notes: Vanguard only offers its own funds — no individual shares — so the comparison isn't like-for-like. Interactive Investor's Core plan is limited to portfolios under £100,000; at £100,001 you move to Plus at £14.99/month (£179.88/year), which would make the total £195.84. Fidelity charges £1.50 per regular savings trade and £7.50 per online share deal.

AJ Bell's £62/year on a £100,000 portfolio works out to 0.062%. That's less than half what you'd pay at Vanguard, roughly one-sixth of HL or Fidelity. The gap widens as your portfolio grows.

Two things worth knowing. First, most investors trade less than this scenario — many buy a global tracker once a month and hold. In that case, AJ Bell's annual cost is just £42. Period. Second, platforms frequently run transfer cashback offers (£100–£500), which can offset the first year's costs entirely. Always check current offers before switching. Our ISA transfer guide covers the process in detail.

For smaller portfolios, the maths shifts. At £10,000 invested in funds only with 12 monthly buys:

PlatformTotal Annual Cost (£10k)
Vanguard£15
AJ Bell£25
Fidelity (with RSP)£53
HL£35
ii Core£71.88

Vanguard wins below £17,000. It's not close. But that advantage evaporates the moment your ISA crosses the cap threshold.

Interest on Uninvested Cash: The Hidden Cost Nobody Talks About

Platform fees get all the attention. But interest paid on uninvested cash — the money sitting in your account between trades, dividend payments, or new contributions — is a silent differentiator that can meaningfully shift the total cost of ownership.

Here's what the major platforms pay on uninvested GBP cash in ISAs as of mid-2026:

  • AJ Bell: Pays interest on uninvested cash, with rates varying by account type. At a 3.75% Bank Rate, the spread between what the platform earns and what it passes to you matters.
  • HL: Pays tiered interest on cash balances, with better rates on larger sums. Crucially, HL charges no platform fee on uninvested cash — cash held in your account is free.
  • Fidelity: Pays interest on cash balances but retains a portion of the interest earned from partner banks to fund platform development. No service fee on cash.
  • ii: Pays interest on GBP, EUR, and USD cash balances, with rates published on their interest rates page.

This matters most for two types of investor: those who keep a cash buffer for opportunistic buying (3–5% of portfolio), and those in drawdown who hold 1–2 years of income in cash. On a £500,000 SIPP with £25,000 in cash, a 1% difference in interest rates is £250/year — more than double AJ Bell's entire SIPP platform fee.

AJ Bell's Cash Savings Hub offers access to competitive savings rates from partner banks, but this is a separate product from the cash held in your investment accounts. The distinction matters: savings hub cash is FSCS-protected up to £120,000 (the deposit limit raised from £85,000 in December 2025), while investment account cash protection follows the standard £85,000 FSCS investment limit.

Bottom line: if you keep meaningful cash in your investment accounts, compare the interest rates as carefully as you compare the platform fees. A platform that charges £42/year but pays 2% less on your cash buffer may not be cheaper at all.

Account Types: What You Get

AJ Bell offers eight account types covering virtually every UK investor need:

  • Stocks & Shares ISA — £20,000 annual allowance, 24 international exchanges, 4,000+ funds
  • Lifetime ISA — £4,000 annual limit with 25% government bonus, for first-time buyers or retirement from age 60
  • Junior ISA — £9,000 annual limit, locked until the child turns 18
  • SIPP — up to £60,000 annual contribution with automatic tax relief at source
  • Junior SIPP — up to £3,600 per year including tax relief
  • Ready-made pension — managed alternative to the SIPP
  • Dealing account — general investment account (GIA) with no tax wrapper
  • Cash savings hub — access to competitive savings rates from partner banks

The investment range is one of the broadest in the UK: individual shares across 24 international markets, 4,000+ funds and ETFs, investment trusts, bonds, and gilts. Compare that to Vanguard, which restricts you to its own funds — excellent for a low-cost global tracker, useless if you want individual shares, active funds, or direct gilt holdings.

No Cash ISA. This is a genuine gap. If you want to hold cash savings in an ISA wrapper alongside your investments, you'll need a separate provider. For most long-term investors this matters less than it sounds — ISA money should generally be invested rather than sitting in cash. Our ISA guide covers the trade-offs. For the debate on cash vs stocks & shares ISAs, see our pair of contrasting takes on the topic.

FSCS protection for investments through platforms remains at £85,000. Cash deposits held at authorised banks are protected up to £120,000 per banking licence (raised from £85,000 in December 2025).

For weighing up account types, see our comparison of share dealing accounts vs investment accounts and our guide to ISA transfers.

Who Should Use AJ Bell — and Who Shouldn't

After running the numbers across every portfolio size from £5,000 to £500,000, here's the honest assessment, cross-checked against each platform's live charges page as of July 2026.

AJ Bell is the best choice if you:

  • Have more than £17,000 invested — the £42 ISA cap produces real savings above this threshold
  • Want individual shares alongside funds in one account — few platforms offer both at this price
  • Need a SIPP with low fees and free drawdown — the £120/year share cap is market-leading
  • Hold multiple account types (ISA + SIPP + dealing account) — the per-account caps compound the savings
  • Use regular monthly investing — free dealing saves £18+/year vs platforms that charge per trade
  • Want to hold individual gilts inside a tax wrapper — the SIPP £120 cap makes this uniquely cost-effective at 4.94% yields
  • Value a FTSE 250-listed, FCA-regulated platform with Which? Recommended status eight years running (2019–2026)

You're better off elsewhere if you:

  • Have less than £17,000 and only want index funds — Vanguard charges 0.15% with no dealing fees on its own funds
  • Trade very frequently (20+ deals/month) — Interactive Brokers has lower per-trade costs
  • Have a portfolio under £5,000 — commission-free apps like Trading 212 eliminate fixed costs
  • Need a Cash ISA — AJ Bell simply doesn't offer one; HL and ii both do
  • Want the slickest mobile experience — Dodl (AJ Bell's simplified app) has a more polished interface
  • Have a large fund-only SIPP above £250,000 — the tiered 0.10% charge on funds starts to bite; Fidelity's £2,000 total cap becomes competitive
  • Hold above £500,000 across multiple accounts — AJ Bell's per-account caps could mean £42 × N accounts + £750+ on SIPP funds; Fidelity's single £2,000 ceiling wins here

The multi-account household is where AJ Bell really shines. An investor with £250,000 split across an ISA (£100,000) and SIPP (£150,000 in shares) pays £42 + £120 = £162 total. HL charges £350 on the ISA alone plus platform fees on the SIPP. Fidelity charges £500 on the full amount at 0.35% (dropping to 0.20% at £250,000 total). The gap is structural, not promotional.

One edge case: the investor with exactly £100,000 in an ISA who makes zero share trades and only buys funds via regular monthly investing. At AJ Bell: £42/year. At ii Core: £71.88 + £47.88 for fund trades (12 × £3.99) = £119.76. At Fidelity: £350 (fund dealing is free). The AJ Bell advantage holds even against flat-fee ii once you account for trading costs.

For more on choosing platforms, our investing hub covers account types and portfolio construction. The flat-fee vs percentage-fee comparison runs the exact numbers.

The Verdict

AJ Bell's fee structure creates a genuine sweet spot for UK investors with £20,000–£500,000 in investable assets. The £42 ISA cap and free regular investing mean your costs barely move as your wealth grows — the opposite of percentage-based platforms where success increases your bill.

The SIPP is the strongest product in the lineup. Free drawdown, free transfers in, a pension finder service, competitive caps — and the £120/year ceiling on shares makes it one of the few platforms where consolidating old workplace pensions is worth doing purely on cost grounds. At 4.94% gilt yields, holding individual gilts inside that cap is an edge no other major platform can currently match.

The platform isn't perfect. The £5 dealing fee for one-off share trades is reasonable but not market-leading. The interface works but won't win design awards. The missing Cash ISA remains an odd omission. For very large fund portfolios above £250,000, Fidelity's tiered pricing can be cheaper at the margin. For sub-£17,000 portfolios, Vanguard is demonstrably cheaper — no debate.

But for the typical UK investor — someone building a pension, using their ISA allowance, maybe holding a few individual shares — AJ Bell does everything you need at a cost that's genuinely hard to beat. Eight consecutive years of Which? Recommended status (2019–2026) with 723,000+ customers isn't a marketing gimmick; it reflects a platform that consistently delivers value.

In a year where the Bank Rate sits at 3.75%, inflation holds at 2.8%, and gilt yields hover near 5%, every basis point of platform fees you avoid compounds directly into your returns. AJ Bell lets you keep more of them than almost anyone else.

This article is for informational purposes only and does not constitute financial advice. You should seek independent financial advice before making any investment decisions.

Conclusion

AJ Bell's £42 ISA cap and £120 SIPP share cap create a cost advantage that compounds as your portfolio grows. For investors between roughly £17,000 and £500,000, no other major UK platform delivers the same combination of low costs, broad investment range, and institutional stability. The numbers don't lie — but they do change depending on your specific circumstances. Run your own comparison before switching.

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This article is based on publicly available UK economic and financial data. It is for informational purposes only and does not constitute regulated financial advice. GiltEdge is not authorised or regulated by the Financial Conduct Authority (FCA). Past performance is not a reliable indicator of future results. Always consult a qualified financial adviser before making investment or financial planning decisions.