What is a SIPP UK? Self-Invested Personal Pensions explained

A Self-Invested Personal Pension — commonly known as a SIPP — is a type of personal pension that gives you greater control over how your retirement savings are invested. Unlike a standard workplace pension, where the investment choices are typically made by the pension provider, a SIPP allows you to choose from a much wider range of investments including shares, funds, bonds, and in some cases commercial property.

SIPPs have become increasingly popular in the UK, particularly among self-employed people, those who want more control over their pension investments, and people who wish to consolidate multiple pension pots into one place.

How does a SIPP work?

A SIPP works in the same fundamental way as any other defined contribution pension. You make contributions, the government adds tax relief on top, and the money is invested with the aim of growing your pension pot over time. When you reach retirement, you can access the money and use it to fund your retirement income.

The key difference from a standard personal pension or workplace pension is the range of investment options available. A SIPP typically allows you to invest in stocks and shares listed on recognised stock exchanges, investment funds including index funds and ETFs, corporate and government bonds, investment trusts, and in some cases commercial property (though this is generally available only through full SIPPs rather than the more common simplified or low-cost SIPPs).

Tax relief on SIPP contributions

One of the most significant advantages of a SIPP — shared with all registered pension schemes in the UK — is tax relief on contributions. For every contribution you make, the government adds basic rate tax relief automatically. This means a £800 contribution from your own pocket becomes £1,000 in your pension.

Higher rate and additional rate taxpayers can claim further relief through their self-assessment tax return, effectively reducing the cost of contributions further. The annual allowance — the total amount you can contribute to all pensions in a tax year and still receive tax relief — is currently £60,000 or 100% of your earnings, whichever is lower. Check gov.uk for the current annual allowance as this can change.

You can also contribute to a SIPP even if you are not currently working, up to £3,600 per year (including the basic rate tax relief top-up of £720), making SIPPs useful for people who have taken career breaks.

Who is a SIPP suitable for?

SIPPs can be a good option for several groups of people. The self-employed do not have access to employer pension contributions, so a SIPP provides a flexible way to save for retirement with the benefit of tax relief. Those who want more investment choice than their workplace pension offers may use a SIPP alongside their workplace scheme. People with multiple old pension pots from previous jobs may find it simpler to consolidate them into one SIPP. And those with investment knowledge or experience who are comfortable making their own investment decisions may prefer the wider choice a SIPP provides.

SIPPs are generally less suitable for people who want a simple, hands-off pension arrangement, or those who are not comfortable selecting and monitoring their own investments. A standard personal pension or workplace pension with a default fund may be more appropriate in those cases.

Types of SIPP

Low-cost or simplified SIPPs

These are the most common type, offered by online pension platforms. They typically offer a range of funds and shares but may not include all asset classes such as commercial property. Charges are generally lower than full SIPPs. These are suitable for most individual investors.

Full SIPPs

Full SIPPs offer the widest possible investment range, including commercial property and more exotic assets. They tend to have higher charges and are generally aimed at sophisticated investors with larger pension pots.

Accessing your SIPP

You can generally start accessing your SIPP from age 55, rising to 57 in 2028 under current government plans. You have several options for taking your money, including taking up to 25% as a tax-free lump sum, using the remainder to buy an annuity (a guaranteed income for life), entering drawdown (keeping your money invested and drawing an income as needed), or a combination of these approaches. Income drawn from a SIPP in retirement is subject to income tax at your marginal rate, with the exception of the tax-free lump sum.

Risks to be aware of

Because SIPPs involve investing in markets, the value of your pension pot can go down as well as up. Unlike a cash savings account, there is no guarantee you will get back what you put in. The investment decisions in a SIPP are your responsibility, which means poor investment choices can harm your retirement savings. Anyone considering a SIPP should be comfortable with investment risk and ideally seek regulated financial advice.