There's a single number that decides most of how much money you'll have when you retire, and it isn't the one most people think about. It's the percentage figure on your pension statement labelled "annual fees" or "ongoing charge."
Take £500/month into a pension over 30 years, assume a long-run 5% return, and look at what fees do to the final pot:
| Total fees | Final pension pot |
|---|---|
| 0.5% (a clean Vanguard SIPP) | £409,000 |
| 1.0% (typical UK workplace default) | £369,000 |
| 1.5% (legacy fund) | £334,000 |
| 2.0% (some old personal pensions) | £303,000 |
A single percentage point of fees, compounded for 30 years, is roughly £100,000 of retirement money. The fee number is the most important pension decision after the decision to contribute. People obsess over fund choice and ignore the fee, which is exactly backwards.
What the UK SIPP market actually looks like
Self-Invested Personal Pensions (SIPPs) in the UK in 2026 fall into roughly three pricing layers.
The cheapest layer is Vanguard Personal Pension at 0.15% platform fee, capped at £375 a year. Pair it with a Vanguard LifeStrategy fund at 0.22% and your all-in cost is around 0.37% per year. Vanguard's funds are the only ones available on the platform, but for most UK savers that's a feature rather than a constraint, because LifeStrategy and Target Retirement funds are exactly what most savers should hold.
The middle layer is AJ Bell Dodl and the regular AJ Bell SIPP. Dodl is a stripped-down 0.15% platform with a small fund list; the main AJ Bell SIPP is 0.25% capped at £40 for shares, with broader fund access. Total cost lands at roughly 0.45-0.85% depending on fund choice.
The premium layer is Hargreaves Lansdown at 0.45% platform (capped at £200 for funds, £45 for shares), plus fund fees on top. All-in around 0.65-1.00%. HL's quality is real, the research is genuinely good, and the customer service is the best in the UK by some distance. Whether that's worth £30,000-£60,000 over thirty years depends on how much you'll use it.
A separate proposition: Interactive Investor, which charges flat fees rather than percentages. £12.99/month for the basic SIPP plan. For a pot above about £75,000 this becomes cheaper than percentage-based platforms. For smaller pots it's expensive.
For most UK adults early in their pension life: Vanguard at 0.37% is the right answer. The fund choice is narrow but appropriate, and the fees are the lowest available without flat-fee structures.
PensionBee solves a different problem
PensionBee isn't really competing with Vanguard on price (their fees are 0.50-0.95%, considerably higher). What they do is consolidation. If you've worked four jobs and have four old workplace pensions sitting at four different providers, PensionBee will track them down, transfer them, and put them in one app you can actually see. That's worth something.
The honest trade-off: PensionBee's fees are roughly twice Vanguard's. On a £100,000 transferred pot over 20 years, that's £20,000-£40,000 in extra fees. If consolidation gets you to engage with retirement planning where you previously didn't, that engagement easily pays back the fee difference. If you're already engaged and willing to do the transfers yourself into Vanguard, you don't need PensionBee.
Workplace pensions are usually fine
If you're employed and auto-enrolled at work, your money goes into NEST, Aviva, Aegon, Scottish Widows, or one of the other big workplace providers. Default fund fees are usually around 0.4-0.7% all-in, which is competitive enough that the cost of moving the money out and into a SIPP isn't always worth it.
Two reasons not to opt out of auto-enrolment, ever:
The first is the employer match. Most UK employers contribute a minimum 3% of qualifying earnings; many contribute more. That's free money. Opting out forfeits it, and you'll never make it up elsewhere.
The second is tax relief. Your contributions get gross-up at your marginal rate. For a higher-rate taxpayer, £100 of pension contribution costs £60 net. For an additional-rate taxpayer it costs £55. There's no other UK tax wrapper this efficient.
What's worth doing: check the fees on your workplace pension. If they're materially above 0.7%, consider transferring older balances out to Vanguard or AJ Bell while keeping current contributions in the workplace scheme (because of the employer match). The transfer process takes 4-12 weeks and the platforms handle it.
What to actually invest in
This part doesn't need to be complicated. For most UK savers the right answer is one of these:
- Vanguard LifeStrategy 80% Equity if you're 20-50 years from retirement. Globally diversified, 80% stocks, 20% bonds, automatically rebalanced.
- Vanguard LifeStrategy 60% Equity if you're 5-15 years from retirement. More bonds, less drawdown risk.
- Target Retirement funds (Vanguard, Fidelity) if you'd rather not think about it. They start equity-heavy and shift to bonds automatically as you approach the target year.
Three things to avoid:
Stock-picking with retirement money. The evidence on individual stock picking by retail investors is brutal: most underperform a tracker by 2-4% per year over a decade. That's another fortune lost to fees-by-other-name.
"Active" UK funds with a track record of beating the index. Survivor bias makes this look much more achievable than it is. Past outperformance doesn't predict future, and the management fees are the only thing that's reliable.
Sitting in cash inside a pension. Some workplace defaults still place money in cash funds for older savers; if you're 40 with 25 years to retirement and your pension is in cash, that's a wealth transfer to inflation.
Tax allowances worth knowing
A few numbers that matter for 2025/26:
The annual allowance is £60,000 across all pension contributions (employer + employee). Above this, you pay tax on the excess. Carry-forward lets you use unused allowance from the previous three years if you want to make a big one-off contribution.
If you've already started drawing from a pension, the Money Purchase Annual Allowance kicks in: £10,000/year going forward. This is the rule that catches people who took flexible drawdown in their fifties and tried to keep contributing.
The Lifetime Allowance was abolished in April 2024. The Lump Sum Allowance (£268,275) replaced it for tax-free cash purposes, but the punitive 25%/55% LTA charges are gone.
Tapered annual allowance hits high earners. Above £260,000 of "adjusted income," your annual allowance reduces by £1 for every £2 above. The minimum lands at £10,000 for incomes around £360,000+. If you're in this territory, a financial adviser is genuinely worth their fee.
Approaching retirement: the genuinely complex bit
Up to about age 55, the right strategy for most savers is "max what you can into a low-cost diversified fund and don't look at it." The decisions get harder near retirement.
The big choice is between drawdown (keep the pot invested, take income from it as you need) and annuity (use the pot to buy a guaranteed income for life). Annuity rates in 2026 are higher than they've been in a decade because of higher gilt yields, which has changed the maths. Drawdown lets you leave money to children; annuity gives certainty. Mixed strategies (annuitise the floor of essential income, keep the rest in drawdown) are increasingly popular.
This is where £1,000-£2,500 to a Chartered Financial Planner is genuinely good value. The decisions are irreversible and the tax considerations are tangled with state pension, ISAs, and inheritance planning.
What to do this month
If you've never thought about your pension fees: log into your provider, find the platform fee and fund fee, add them. If the total is above 1%, you have a problem worth fixing.
If you've got old workplace pensions you've never consolidated: the transfer tools at Vanguard, PensionBee, and Hargreaves Lansdown all work. Pick the cheapest and do it once.
If you're on auto-enrolment at the minimum 5%: consider raising it. Even one percentage point more of your salary, compounded over a 30-year career, is the difference between a comfortable retirement and a constrained one.
The pension stuff isn't urgent in the way other financial decisions feel urgent, which is exactly why most UK adults under-engage with it. Spend an hour on it once a year, when you do your tax return or update your savings goals, and you'll do better than 90% of UK savers without ever needing professional advice.
This article is general consumer information about UK pensions, not financial advice. UK pensions are tax-advantaged and complex; speak to FCA-regulated UK financial advisor for advice on your specific situation.
Affiliate disclosure: Morningfold has affiliate partnerships with Vanguard, PensionBee, AJ Bell, and Hargreaves Lansdown. See editorial standards.