⚠️ Capital at risk. This is not financial advice. Pension investments are long-term and can go down as well as up. You normally cannot access a SIPP until age 55 (rising to 57 in 2028). This article is for educational purposes only. IMZA Invest is not authorised or regulated by the FCA. Always do your own research or consult a qualified financial adviser.
Disclosure: This page contains an affiliate link to AJ Bell. If you open an account through our link, we may earn a commission at no extra cost to you. Vanguard does not offer an affiliate programme — we include them because they are a strong platform, not because we earn from them. Our editorial verdicts are never influenced by commercial relationships. Full affiliate disclosure

⚡ Quick Pick: Vanguard SIPP or AJ Bell SIPP?

If you want... Choose...
A single-fund LifeStrategy or Target Retirement SIPP Vanguard ✅
A large pension (£250k+) with capped fees Vanguard ✅
Multiple wrappers (SIPP + ISA + LISA + JISA) AJ Bell ✅
2,500+ funds plus stocks and investment trusts AJ Bell ✅
Active funds (Fundsmith, Lindsell Train, etc.) AJ Bell ✅
A simple, distraction-free passive strategy Vanguard ✅
UK-based phone support & in-house research AJ Bell ✅
The lowest platform fee for Vanguard-only portfolio Vanguard ✅

Our verdict: Vanguard SIPP wins for a simple one-fund or Vanguard-only SIPP at any portfolio size. AJ Bell SIPP wins if you want a broader fund marketplace or multiple wrappers under one login. Many investors use both — Vanguard for the SIPP core, AJ Bell for everything else.

These are two of the cheapest, most widely-used SIPP platforms in the UK. Vanguard SIPP charges 0.15% annually, capped at £375 per year across all your Vanguard accounts, and restricts you to roughly 80 Vanguard-branded funds. AJ Bell SIPP charges 0.25% on funds (with tapering above £250k) plus £5 per share deal, but opens up the full UK fund market plus direct shares, ETFs, and investment trusts.

The choice is mostly about fund range and wrapper breadth — not about safety or reliability. Both are FCA-regulated, both are covered by FSCS, and both have excellent operational track records. The fee gap matters, but for most investors the deciding factor is what you want to hold inside the wrapper.

Vanguard SIPP vs AJ Bell SIPP: Full Feature Comparison Table

Feature Vanguard SIPP AJ Bell SIPP
Annual platform fee 0.15% (capped at £375/year across all accounts) 0.25% on funds (tapered above £250k)
Share & ETF cap (SIPP) N/A (no share dealing) £5/month cap (£60/year) on share & ETF platform fee in SIPP
Fund dealing fee £0 £1.50 per fund deal
Share dealing fee Not offered £5 per share deal
Fund range ~80 Vanguard funds only 2,500+ funds + stocks + ETFs + ITs
LifeStrategy / Target Retirement ✅ Native ✅ Available as Vanguard fund
Drawdown in retirement ✅ Free flexi-access drawdown ✅ Free flexi-access drawdown
UFPLS & small pot withdrawals ✅ Supported ✅ Supported
Pension transfers in ✅ Free ✅ Free
FCA regulated ✅ Vanguard Asset Management Ltd FCA ✅ AJ Bell Securities Ltd FCA
FSCS protection ✅ Up to £85,000 ✅ Up to £85,000
Research & tools Basic fund pages, retirement calculator In-house research, fund ratings, analyst commentary

Vanguard is a simpler, more opinionated SIPP: a small menu of excellent funds at a very low capped fee. AJ Bell is a wider marketplace SIPP at a slightly higher fee that opens up the full UK fund universe.

Real-World SIPP Cost at 5 Portfolio Sizes

We compare total annual platform cost for a SIPP held in funds (not individual shares). Both platforms include a fund-only scenario — the AJ Bell share cap is only relevant if you hold shares or ETFs inside the SIPP.

Click a portfolio size to see how the SIPP fees compare. Vanguard's cap starts to dominate above £250k.

SIPP value Vanguard SIPP annual cost AJ Bell SIPP annual cost (fund) Cheaper?
£25,000 £37.50 £62.50 + £18 dealing = £80.50 Vanguard
£50,000 £75.00 £125 + £18 dealing = £143 Vanguard
£100,000 £150.00 £250 + £18 dealing = £268 Vanguard
£250,000 £375.00 (cap reached) £625 + £18 dealing = £643 Vanguard
£500,000 £375.00 (cap reached) £1,000 (tiered) + £18 dealing = £1,018 Vanguard

Assumptions: Vanguard SIPP = 0.15% platform fee, capped at £375 across all Vanguard accounts. AJ Bell SIPP = 0.25% fund platform fee (tapered above £250k) + 12 × £1.50 fund deals per year (£18). Underlying fund OCFs excluded from both as they are comparable. Illustrative only.

Key takeaway: On raw cost alone, Vanguard SIPP is cheaper than AJ Bell SIPP at every portfolio size for a fund-based SIPP. The gap widens as the portfolio grows — at £500k, Vanguard's £375 cap saves more than £640 per year. The caveat: this assumes you are happy with Vanguard's 80-fund range. If you want Fundsmith, Lindsell Train, a specialist UK smaller companies fund, or direct shares, the extra £100–£200 per year at AJ Bell is paying for optionality, not wastage.

AJ Bell's share cap of £5 per month (£60 per year) applies separately to shares and ETFs held inside the SIPP, so if you split the portfolio between funds and shares the numbers shift. For pure fund SIPPs — which most long-term investors should prefer — the comparison above is the one that matters.

Vanguard SIPP: The Capped-Fee Index Fund Specialist

Vanguard UK operates its SIPP under Vanguard Asset Management Limited, authorised and regulated by the Financial Conduct Authority. The SIPP sits alongside the Stocks & Shares ISA, Junior ISA, and General Investment Account — all four wrappers share the same 0.15% platform fee, capped at £375 per year collectively across every Vanguard account you hold.

The key headline: once your total Vanguard holdings exceed £250,000, the platform fee stops climbing. At £500,000 the effective rate is 0.075%. At £1,000,000 it is 0.0375%. No other UK SIPP platform caps platform fees this low for a core-and-satellite portfolio of global index funds.

The trade-off is range. You can only hold Vanguard-branded funds inside a Vanguard SIPP — about 80 of them. That includes the crown jewels of UK passive investing: the LifeStrategy multi-asset funds (20%, 40%, 60%, 80%, 100% equity), the Target Retirement date funds, the FTSE Global All Cap index, the FTSE All-World ETF, the S&P 500 tracker, and core UK, Europe, Japan, Emerging Markets, and global bond trackers. For a simple, set-and-forget retirement SIPP, this is more than enough.

You cannot hold iShares, HSBC, Fidelity, or any non-Vanguard fund inside a Vanguard SIPP. You cannot hold individual shares, investment trusts, or non-Vanguard ETFs. If your plan is a one-fund LifeStrategy SIPP, this is a feature. If you want flexibility, it is a dealbreaker.

Drawdown is fully supported — flexi-access drawdown, uncrystallised funds pension lump sums (UFPLS), and small pot withdrawals are all free of charge. Vanguard does not charge to enter drawdown, take a 25% tax-free lump sum, or make ongoing income withdrawals.

Pros and Cons of Vanguard SIPP

✅ Pros

  • 0.15% platform fee capped at £375/year — cheapest for large portfolios
  • Single cap covers ISA + SIPP + JISA + GIA combined
  • Zero dealing fees on Vanguard funds
  • LifeStrategy and Target Retirement funds built for a SIPP
  • No FX fees (all GBP-denominated funds)
  • Free flexi-access drawdown and UFPLS
  • Simple interface with no upsell clutter
  • Vanguard's mutual ownership structure aligned with investors

❌ Cons

  • Only 80 Vanguard-branded funds — no third-party funds
  • No individual shares, ETFs outside Vanguard, or investment trusts
  • No Lifetime ISA or Junior SIPP
  • Limited research and fund analysis tools
  • Customer service can be slow during peak periods
  • No in-house analyst commentary

AJ Bell SIPP: The Full Fund Marketplace SIPP

AJ Bell Securities Limited operates the AJ Bell SIPP under FCA authorisation. It is one of the longest-established SIPPs in the UK retail market and sits alongside AJ Bell's broader Stocks & Shares ISA, Lifetime ISA, Junior ISA, Junior SIPP, and General Investment Account.

Pricing for the SIPP is 0.25% annual platform fee on fund holdings, tapering down above £250,000 to 0.10% between £250k and £500k, and 0% above £500k. Share and ETF holdings inside the SIPP carry a 0.25% platform fee too, but capped at £5 per month (£60 per year). Fund dealing is £1.50 per trade, share dealing is £5. FX on non-GBP assets is 0.75%–1.00%, tiered by trade size.

The fund range is where AJ Bell shines. Over 2,500 funds from every major UK fund house — Vanguard, Fidelity, HSBC, Legal & General, BlackRock, Fundsmith, Lindsell Train, Royal London, Baillie Gifford, Liontrust, and many more. Plus direct UK-listed shares, global shares, ETFs, investment trusts, corporate bonds, and cash. Inside a SIPP, this breadth is genuinely useful if you want to blend active and passive, or hold specialist funds alongside global trackers.

AJ Bell publishes its own in-house research — Favourite Funds lists, fund factsheets, analyst commentary, and Shares magazine articles. For a DIY SIPP investor who wants educational support without paying an adviser, this is valuable.

All SIPP drawdown options are free of charge: flexi-access drawdown, UFPLS, and small pot withdrawals. There is no annual SIPP-specific admin fee beyond the platform fee, and no charge for transferring a pension in from another provider.

Read our full Hargreaves Lansdown vs AJ Bell comparison for more on how AJ Bell positions itself against other full-service brokers.

Pros and Cons of AJ Bell SIPP

✅ Pros

  • 2,500+ funds from every major UK fund house
  • Plus direct shares, ETFs, and investment trusts in the same SIPP
  • £1.50 fund deals — cheap for active fund investors
  • Share & ETF platform fee capped at £5/month in SIPP
  • Tiered fund fee tapers to 0% above £500k
  • Free flexi-access drawdown, UFPLS, and small pot withdrawals
  • UK-based phone support and dealing desk
  • In-house research, fund ratings, and market commentary
  • Junior SIPP, LISA, and full ISA line-up alongside the SIPP

❌ Cons

  • 0.25% fund platform fee higher than Vanguard's 0.15%
  • No overall cross-wrapper cap equivalent to Vanguard's £375
  • £5 share dealing fee adds up for active share traders
  • 0.75%–1.00% FX fee is noticeably higher than cheaper rivals
  • Slightly more complex interface than Vanguard
  • Wide range of funds can encourage tinkering

Fund Range and Flexibility: The Core Difference

Vanguard SIPP holds about 80 Vanguard-branded funds. That covers the essentials: one-fund LifeStrategy for a completely hands-off portfolio, Target Retirement for a glide-path approach, and individual index trackers for investors who want to build their own asset allocation. This is enough for almost any sensible passive SIPP, but it limits you to Vanguard as a house.

AJ Bell SIPP holds 2,500+ funds, plus every UK-listed stock, global share, ETF, investment trust, bond, and cash. For an investor who wants to blend a global tracker with a Fundsmith active core, a specialist emerging markets fund, or a UK smaller companies strategy, AJ Bell is the only option between these two.

For most people, the Vanguard range is genuinely enough. LifeStrategy 80% Equity inside a Vanguard SIPP is a complete retirement portfolio on its own. But some investors value optionality, even if they never fully use it. If that sounds like you, AJ Bell is the safer pick.

SIPP Drawdown: How Each Platform Handles Retirement

Both platforms support the full range of pension drawdown options free of charge:

  • 25% tax-free lump sum: Take up to a quarter of your SIPP tax-free from age 55 (rising to 57 in 2028).
  • Flexi-access drawdown: Keep the pension invested and draw income as needed, taxed at your marginal rate.
  • UFPLS: Take each withdrawal as 25% tax-free + 75% taxable, without moving into drawdown.
  • Small pot withdrawals: Clear out pots under £10,000 without triggering the Money Purchase Annual Allowance.

Neither Vanguard nor AJ Bell charges an annual SIPP drawdown fee, which is a meaningful saving compared to older SIPP providers who still charge £100+ per year in admin fees once you enter drawdown.

AJ Bell offers more flexibility on the income side, with UK-based pension specialists reachable by phone. Vanguard is primarily a digital-first platform — all drawdown is self-service. For complex drawdown scenarios, a specialist advice layer outside the platform may be sensible either way.

Security, FCA Regulation and FSCS Protection

Both platforms are fully authorised and regulated by the UK Financial Conduct Authority:

  • Vanguard: Operated by Vanguard Asset Management Limited. SIPP held in a master trust with assets ring-fenced under the Vanguard UK Personal Pension.
  • AJ Bell: Operated by AJ Bell Securities Limited and AJ Bell Management Limited. SIPP held under AJ Bell's trust arrangement with client assets segregated from corporate assets.

Both are covered by the Financial Services Compensation Scheme (FSCS) up to £85,000 per person, per firm in the event of platform insolvency. FSCS does not protect against normal investment losses — pension investments can go down as well as up, and capital is always at risk.

Which SIPP Should You Choose?

Choose Vanguard SIPP if:

  • You want a simple, low-cost, one-fund SIPP
  • You plan to use LifeStrategy or Target Retirement as your core
  • Your SIPP is £100k+ and you value the £375 cap
  • You want all your Vanguard accounts sharing one capped fee
  • You prefer a distraction-free, set-and-forget investing experience
  • You are comfortable with Vanguard's 80-fund range
  • You value Vanguard's mutual ownership structure

Choose AJ Bell SIPP if:

  • You want access to 2,500+ funds including active strategies
  • You want to hold individual shares, investment trusts, or non-Vanguard ETFs in the SIPP
  • You want a Lifetime ISA, Junior SIPP, or other wrapper alongside
  • You want in-house research, fund ratings, and phone support
  • You prefer a traditional UK stockbroker over a fund house
  • You are an active investor who rebalances and picks funds frequently
  • You want cross-wrapper consolidation under one login

Many investors use both: Vanguard SIPP as a core LifeStrategy holding and AJ Bell SIPP or ISA for satellite positions in active or specialist funds. It adds a second login but keeps costs low on the bulk of the pension while preserving optionality on the edges.

For broader context, see our SIPP guide for how SIPPs work at a fundamental level, our pension vs ISA guide for the wrapper-choice decision, and our best Stocks & Shares ISA UK 2026 for the ISA side.

Frequently Asked Questions: Vanguard vs AJ Bell SIPP 2026

Is Vanguard SIPP cheaper than AJ Bell SIPP?

For Vanguard-only fund portfolios, Vanguard SIPP is cheaper at every portfolio size. At £100k, Vanguard costs £150 a year versus around £268 for AJ Bell. At £500k, Vanguard's cap of £375 saves you more than £640 per year. AJ Bell's fee tapers above £250k but never reaches Vanguard's flat-cap level. The gap is the price of optionality — AJ Bell's extra cost opens up 2,400+ funds Vanguard cannot hold.

What funds can I hold in a Vanguard SIPP?

The Vanguard UK SIPP is limited to approximately 80 Vanguard-branded funds. This includes the LifeStrategy multi-asset range (20%, 40%, 60%, 80%, 100% equity), Target Retirement date funds, FTSE Global All Cap, FTSE All-World ETF, and core regional, global, and bond trackers. You cannot hold individual shares, iShares, SPDR, or non-Vanguard funds. If you want Fundsmith, Lindsell Train, or any active fund house, Vanguard cannot hold it.

What can I hold in an AJ Bell SIPP?

An AJ Bell SIPP can hold 2,500+ open-ended funds from any major UK fund house, plus UK and overseas shares, ETFs, investment trusts, corporate bonds, and cash. You can also hold Vanguard funds at AJ Bell — so you can build a Vanguard-only portfolio inside AJ Bell and decide later if you want to extend into other funds.

Is a SIPP the right wrapper for me?

A SIPP is ideal if you want a low-cost pension with full control over the underlying investments. You get 20%–45% tax relief on contributions, and 25% of the pot comes out tax-free from age 55 (rising to 57 in 2028). The trade-off is that the money is locked up until then. If you need flexible access, an ISA is a better fit. Many investors use both — SIPP for tax relief, ISA for flexibility.

Can I transfer an old pension into Vanguard or AJ Bell SIPP?

Yes, both platforms accept transfers from defined-contribution pensions, stakeholder pensions, personal pensions, and other SIPPs. Transfers from defined-benefit (final salary) pensions with a value over £30,000 require regulated advice by law — you cannot self-transfer. Neither Vanguard nor AJ Bell charges to receive a transfer, but check whether your current provider charges an exit fee before moving.

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Affiliate disclosure: Links to AJ Bell on this page are affiliate links — we may earn a commission if you open an account, at no cost to you. Vanguard does not operate an affiliate programme — we include them on editorial merit only. Our reviews and verdicts are always independent. Full affiliate disclosure

⚠️ Capital at risk. This is not financial advice. Pension investments are long-term and can go down as well as up, and you may get back less than you invested. Tax treatment depends on individual circumstances and may change in the future. You normally cannot access a SIPP until age 55, rising to 57 from 2028. This content is for informational and educational purposes only and should not be considered financial advice. IMZA Invest is not authorised or regulated by the Financial Conduct Authority (FCA). Always do your own research and consider seeking advice from a qualified financial adviser before making pension decisions. Full disclaimer →