What’s the Difference Between a SIPP and a Personal Pension?

It helps to know that a SIPP is a personal pension, a particular type of it. Both are private pensions you can set up yourself, both carry identical tax rules, and both do the same fundamental job of sheltering money for retirement. The difference is not the tax treatment but the engine underneath: how much investment choice you get, how much control you take, and what you pay for it.

The same wrapper, the same tax rules

Whichever you choose, the pension rules are identical. Contributions attract tax relief at your marginal rate, pay in £80 and basic-rate relief tops it to £100. The £60,000 annual allowance (or 100% of earnings if lower) applies to both, as does the ability to take up to 25% tax-free from age 55, rising to 57 in April 2028. Investments grow free of UK income and capital gains tax in either wrapper. Our guide to pension tax relief explains the mechanics that apply equally to both, and you can check contribution limits in how much you can pay in tax-free.

So if the tax treatment is the same, what actually separates them? It comes down to investment freedom. A standard personal pension gives you a curated menu, usually a range of ready-made funds run by the provider, often defaulting into a single balanced or lifestyle fund that gradually de-risks as you approach retirement. A SIPP, by contrast, opens the doors to a far wider universe: individual shares, exchange-traded funds, investment trusts, gilts, corporate bonds and, in a full SIPP, even commercial property.

What a SIPP gives you

The appeal of a SIPP is control. You decide exactly how the money is invested and can adjust it whenever you like, which makes it the natural home for people who enjoy managing their own portfolio or who work with an adviser to run a tailored strategy. It is also the wrapper of choice for consolidating several old pots into one self-directed plan. That freedom, though, is a double-edged sword: with control comes responsibility for the decisions, and a poorly chosen portfolio can just as easily underperform a provider’s default fund as beat it.

Where a standard personal pension wins

For a great many savers, the simplicity of a standard personal pension is a feature, not a limitation. If you have no wish to research funds, rebalance a portfolio or watch markets, a ready-made pension that quietly does its job is genuinely the better outcome, and often the cheaper one. The danger with a SIPP is paying for flexibility you never use: a wide investment menu is of no value if your money simply sits in a single fund you could have held more cheaply elsewhere.

Cost, often the deciding factor

Charges deserve close attention, because they compound relentlessly over decades. A SIPP typically splits its cost into a platform fee plus the charges on each fund you hold, whereas a standard personal pension usually rolls everything into a single bundled figure. Neither is automatically cheaper: a low-cost platform SIPP holding a simple tracker can undercut an old, expensive personal pension, while a full SIPP loaded with active funds can cost considerably more. Over 20 or 30 years, a difference of half a percent a year can quietly cost tens of thousands of pounds, so it pays to compare the total you would pay, not just the headline fee.

The honest question is not which product is better in the abstract, but which fits how you want to invest. Plenty of people use a low-cost SIPP purely to hold one diversified multi-asset fund, getting the consolidation benefits without picking individual shares; others are happiest leaving everything to a personal pension provider. Both are perfectly sensible. This is information, not personal advice, and investments can fall as well as rise. To weigh which wrapper suits your plan, and to check you would not give up valuable guarantees by switching, Vetted Wealth’s free service matches you with independently vetted, FCA-regulated pension advisers, and you can read more across our pensions guides.

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