Best SIPP Providers UK 2026

Picking a SIPP provider is one of those decisions that feels more complicated than it needs to be. There are dozens of options, each with slightly different fee structures, slightly different fund ranges, and marketing that makes them all sound like the obvious choice. Having spent a fair amount of time going through the numbers for my own situation, here is my honest take — with the caveat that this is not financial advice and the right answer for you depends on your specific circumstances.

The short version: for most people with a straightforward investment strategy, AJ Bell or Vanguard will serve you well and cost you significantly less than the bigger names. For people who want the widest possible investment choice, Hargreaves Lansdown is worth the premium. For people who want someone else to manage the whole thing, Nutmeg or PensionBee take the decisions off your plate.

What matters more than the platform choice is that you are actually contributing, capturing your full employer match, and using salary sacrifice if it is available. The difference between the right and wrong SIPP provider costs you hundreds of pounds over a lifetime. The difference between contributing and not contributing costs you hundreds of thousands.

What a SIPP Actually Is — and Who Needs One

A Self-Invested Personal Pension is a pension wrapper that gives you control over what you invest in. Unlike a default workplace pension — where the scheme typically offers a limited range of funds and puts you in a default unless you actively choose otherwise — a SIPP lets you invest in thousands of funds, ETFs, shares, and investment trusts.

SIPPs make most sense for four groups of people. The self-employed, who have no workplace scheme and need to arrange their own pension. People consolidating old workplace pensions from previous employers into one place they control. Higher earners who have maximised their workplace pension and want an additional vehicle with more flexibility. And people approaching retirement who want more control over how they draw down their income.

The tax relief works identically to a workplace pension — the government is not more or less generous based on which SIPP provider you use. Every £80 you contribute becomes £100 in your pension through basic rate relief. Higher rate taxpayers can claim the additional 20% through self-assessment. The tax advantage is the same everywhere — so the only meaningful differentiators between providers are fees, fund range, and usability.

The Providers — Honestly Assessed

Hargreaves Lansdown — the most popular, not always the best value

HL is the UK's largest investment platform and its reputation is broadly deserved. The fund range is the widest available — over 2,500 funds plus shares, investment trusts and ETFs. The customer service is consistently well-rated. The app and research tools are among the best in the industry. If you want a SIPP with the most comprehensive investment options and the best support when you need it, HL is hard to argue with.

The fee is 0.45% per year for funds, capped at £200 per year for pension holdings in shares. For a fund-heavy SIPP this is expensive — on a £100,000 pension pot it costs £450 per year versus £150 at Vanguard or £250 at AJ Bell. That £300 annual difference, compounded over 20 years of investment growth, is a meaningful sum. My honest view is that HL is best justified when you are genuinely using its breadth — active funds, investment trusts, shares alongside index funds. If you are putting everything into a global tracker, you are paying for a menu you are not eating from.

AJ Bell — the one I would probably choose

I want to be careful here because this is a personal perspective, not financial advice. But if I were opening a SIPP today for a straightforward long-term investment strategy, AJ Bell is where I would likely land. The fee of 0.25% (capped at £3.50 per month for funds) gives you most of HL's breadth at meaningfully lower cost. The platform is clean and functional. The SIPP specifically has a strong reputation — AJ Bell was founded by pension industry professionals and pension administration is central to what they do.

The fund range covers the major index trackers, active funds from multiple managers, ETFs and investment trusts — everything most investors need. It is not as comprehensive as HL at the margins, but the day-to-day difference for most investors is minimal. The savings over 20 years are not minimal.

Vanguard — best for pure index investors

At 0.15% per year (capped at £375), Vanguard is the cheapest option for most pension savers. The limitation is that you can only invest in Vanguard's own funds — around 80 options including their well-regarded LifeStrategy and index fund range. For an investor whose strategy is a global index fund and nothing else, those 80 options are more than enough. The LifeStrategy 80% Equity Fund and the FTSE Global All Cap Index Fund between them cover most of what a long-term pension investor needs.

If you ever want to invest outside of Vanguard's own range, you would need to open a separate account elsewhere. That is a real limitation for some people and no limitation at all for others. Know which camp you are in before deciding.

PensionBee — best for consolidation and simplicity

PensionBee has built its reputation on one thing: making pension consolidation easy. If you have old workplace pensions scattered across previous employers — which most people who have worked for more than one company do — PensionBee will track them down, contact the providers, and consolidate them for you with minimal effort on your part. The fee of 0.50-0.95% is higher than AJ Bell or Vanguard, but for people who want the consolidation handled and a simple ready-made plan, that fee buys genuine convenience.

My reservation about PensionBee is the fee level for larger pots over time. Once your pension reaches £100,000+, a 0.75% annual fee is £750 per year — more expensive than HL's pension cap of £200. At that point, transferring to AJ Bell or Vanguard while keeping the consolidated pot becomes worth considering.

Interactive Investor — best for larger pots

Interactive Investor charges a flat monthly fee rather than a percentage — currently around £12.99 per month for its pension plan. On a £200,000 SIPP, that is £155.88 per year versus £500 for AJ Bell at 0.25%. The larger your pot, the more attractive a flat fee becomes. The fund range is excellent and the platform is well established. For pension pots above roughly £70,000-£80,000, II is worth a serious look.

The Fee Comparison Over 20 Years

On a £500 per month contribution at 7% annual growth starting from zero, the pot after 20 years is roughly £260,000. Here is what different fee structures cost over that period:

PensionBee's fee level, while reasonable for small pots, becomes expensive at scale. AJ Bell's pension fee cap of £3.50 per month makes it very competitive for larger fund-based SIPPs. These numbers are estimates and will vary depending on growth rate and contribution pattern — but the relative ordering is reliable.

The One Thing That Matters More Than Provider Choice

Before spending too long agonising over providers, check two things. First — are you capturing your full employer match? If your employer matches contributions up to 5% and you are contributing 3%, fix that before doing anything else. The match is a guaranteed return that no SIPP fee saving can compete with. Second — is salary sacrifice available? If it is, using it saves both income tax and National Insurance on contributions, at no extra cost. Those two things are worth far more than the difference between any two providers on this list.