SIPP Guide: Self-Invested Personal Pensions (2026)

A Self-Invested Personal Pension (SIPP) is a flexible UK personal pension that gives you direct control over where your retirement savings are invested. Unlike most workplace pensions where your employer chooses the investment options, a SIPP lets you pick from a wide range of assets including individual shares, funds, bonds, and even commercial property. You get the same generous tax relief as any pension—20% added automatically, with higher earners claiming extra—but you're responsible for choosing investments and managing costs. The trade-off is flexibility versus employer contributions: a SIPP suits people who want investment control and are either self-employed, have maxed out workplace pensions, or want to consolidate old pots.

What is a SIPP?

A Self-Invested Personal Pension is a type of personal pension wrapper that holds your retirement savings. Think of it as a tax-efficient container: money goes in with tax relief, grows largely tax-free inside, and comes out from age 55 (rising to 57 from April 2028) with part of it tax-free.

The "self-invested" part means you decide what to buy. Most workplace pensions offer perhaps 10-20 ready-made funds. A SIPP typically offers thousands of funds, individual company shares listed on major exchanges, investment trusts, ETFs, corporate bonds, and sometimes commercial property or land.

SIPPs are regulated by the Financial Conduct Authority (FCA) and must follow the same pension tax rules as any other UK registered pension scheme.

How tax relief works

The basics: relief at source

When you pay £100 into a SIPP, the pension provider immediately claims basic-rate tax relief from HMRC and adds it to your pot. So your £100 becomes £125. This is called "relief at source" and happens automatically—you don't need to do anything.

The maths: basic-rate tax is 20%. If you've paid £100 from your after-tax income, HMRC treats that as if you earned £125 and paid £25 tax. The pension provider reclaims that £25 for you.

Higher and additional-rate taxpayers

If you pay 40% or 45% tax, you're entitled to more relief but must claim it yourself through Self Assessment or by asking HMRC to adjust your tax code.

Example: Priya earns £60,000 a year and pays £10,000 into her SIPP.

• She pays £8,000 from her bank account
• The SIPP provider claims £2,000 basic-rate relief → total contribution £10,000
• Priya pays 40% tax on income above £50,270, so she's entitled to 40% relief overall
• She claims the extra 20% (£2,000) via Self Assessment, which reduces her tax bill by £2,000

Additional-rate taxpayers (45%) claim an extra 25% on top of the automatic 20%.

Scottish taxpayers

Scotland has different income tax bands. If you're a Scottish taxpayer paying 42% on some income, you claim the difference between 42% and 20% (i.e. 22%) through Self Assessment. The relief-at-source system still adds 20% automatically; you claim the top-up.

Annual Allowance: how much can you contribute?

The Annual Allowance for 2026-27 is £60,000. This is the maximum total pension contribution (including tax relief and employer contributions) you can make in a tax year while still getting full tax relief.

Key points:

• The limit includes the tax relief added by the provider
• It covers all your pensions combined—workplace, SIPP, other personal pensions
• You can't contribute more than 100% of your UK earnings in a tax year (so if you earn £30,000, your maximum contribution including tax relief is £30,000, even though the Annual Allowance is £60,000)
• Non-earners or those earning under £3,600 can still contribute up to £2,880 net (£3,600 gross with tax relief)

Carry forward

If you haven't used your full Annual Allowance in the previous three tax years, you can carry forward the unused amount. You must have been a member of a UK registered pension scheme in those years (even if you didn't contribute).

Example: James has unused allowances of £40,000 from 2023-24, £35,000 from 2024-25, and £50,000 from 2025-26. In 2026-27 he earns £200,000 and wants to make a large contribution. He can contribute up to £60,000 (current year) + £40,000 + £35,000 + £50,000 = £185,000 total, subject to his earnings.

Tapered Annual Allowance

If your "adjusted income" exceeds £260,000, your Annual Allowance reduces by £1 for every £2 over that threshold, down to a minimum of £10,000.

Adjusted income = your total taxable income plus employer pension contributions. Threshold income (income before employer contributions) must also exceed £200,000 for tapering to apply.

Example: Aisha earns £280,000 salary and her employer contributes £15,000 to her workplace pension. Adjusted income = £295,000. She's £35,000 over £260,000, so her Annual Allowance reduces by £17,500 to £42,500.

This is complex—if you're in this bracket, speak to a financial adviser or use AI Accountant for personalised calculations.

When can you access your SIPP?

You can normally access your SIPP from age 55. This is rising to age 57 from 6 April 2028 for most people.

Once you reach the minimum pension age, you have several options:

1. Take a 25% tax-free lump sum (subject to the Lump Sum Allowance—see below)
2. Leave the rest invested and draw income as needed (pension drawdown)
3. Buy an annuity (a guaranteed income for life)
4. Take the whole pot as cash (25% tax-free, rest taxed as income—usually a bad idea unless the pot is very small)

Lump Sum Allowance (LSA)

The maximum tax-free lump sum you can take across all your pensions in your lifetime is £268,275 (2026-27). This is 25% of the Lump Sum and Death Benefit Allowance of £1,073,100.

If your total pension pots are worth more than £1,073,100, you'll still only get £268,275 tax-free. The rest is taxable when you withdraw it.

Most people won't hit this limit, but if you have a large pension or several pots, keep track.

What can you invest in?

SIPPs offer a much wider investment universe than typical workplace pensions:

• Funds: unit trusts, OEICs, investment trusts, ETFs covering equities, bonds, commodities, etc.
• Individual shares: UK and international stocks listed on recognised exchanges (LSE, NYSE, NASDAQ, major European exchanges)
• Bonds: UK gilts, corporate bonds
• Commercial property: you can buy an office, warehouse, or shop through your SIPP (but not residential property—see below)
• Cash: held as cash within the SIPP, earning interest

What you cannot hold

• Residential property (houses, flats)—this is a prohibited asset under pension rules
• Assets you personally use (e.g. your own business premises if you're a sole trader using them)
• Certain unregulated investments (some providers restrict access to high-risk unregulated schemes)

Most SIPP providers don't offer commercial property because of the complexity and cost. If you want to hold property in your SIPP, you'll need a specialist "full SIPP" provider and should take professional advice—there are strict rules about borrowing, valuations, and transactions with connected parties.

Costs and charges

SIPPs come with fees. Typical charges include:

• Platform fee: an annual percentage of your pot (often 0.25%–0.45%) or a flat fee
• Dealing fees: £5–£12 per trade when you buy or sell shares or funds
• Fund charges: the ongoing charge of the funds you hold (OCF), typically 0.1%–1%+
• Transfer-in/out fees: some providers charge to move money in or out
• Inactivity fees: if you don't trade for a long period

Example: Tom has £100,000 in a SIPP with a 0.35% platform fee. He holds low-cost index funds with an average OCF of 0.15%. His total annual cost is roughly £500 (platform + fund charges). He makes four trades a year at £10 each = £40 dealing fees. Total annual cost: £540.

Compare providers carefully. Low-cost platforms suit people investing in funds; active share traders might prefer flat fees.

SIPP vs workplace pension

| Feature | SIPP | Workplace pension | |---------|------|-------------------| | Investment choice | Wide: shares, funds, bonds, property | Limited: typically 10-20 funds | | Employer contributions | No (unless employer pays into your SIPP, rare) | Yes—often 3%-10%+ of salary | | Control | You choose everything | Employer chooses platform, you pick from their list | | Costs | You pay all fees | Employer often negotiates lower fees | | Flexibility | High | Medium |

The big trade-off: employer contributions are free money. If your employer offers 5% matching, that's an instant 5% return. You'd need exceptional investment skill to beat that in a SIPP.

Best approach for most people: max out employer matching in your workplace pension first, then use a SIPP for additional contributions if you want more control or have self-employed income.

Who should consider a SIPP?

A SIPP makes sense if you:

• Are self-employed or a company director with no workplace pension
• Have maxed out your workplace pension and want to contribute more
• Have multiple old pension pots and want to consolidate them in one place with better investment choice
• Want to invest in specific shares or funds not available in your workplace scheme
• Are a higher earner and want to manage your own pension investments

A SIPP is probably not the best choice if:

• You're not confident choosing investments (consider a robo-adviser or staying in a workplace pension with a default fund)
• Your employer offers generous matching and you haven't maxed that out yet
• You want a completely hands-off pension

Common mistakes

Not claiming higher-rate relief: If you pay 40% or 45% tax, you must claim the extra relief yourself. HMRC doesn't do it automatically. Many people miss out on thousands of pounds.

Exceeding the Annual Allowance: Contributions over £60,000 (or your tapered allowance) trigger tax charges. If you're making large contributions or have employer contributions, check you're within limits.

Paying in more than you earn: You can't get tax relief on contributions above 100% of your earnings. If you earn £25,000, the maximum gross contribution is £25,000 (£20,000 net + £5,000 relief).

Ignoring charges: A 1% annual fee sounds small but costs you tens of thousands over decades. Compare platforms and choose low-cost funds where possible.

Accessing before minimum pension age: Taking money out before 55 (or 57 from 2028) triggers huge tax penalties—up to 55% tax charge plus your marginal rate. There are very limited exceptions (serious ill health).

Forgetting about old pensions: Many people have several small pots from old jobs. Consolidating into a SIPP can simplify management and sometimes reduce fees—but check for exit penalties or valuable guarantees before transferring.

Investing too cautiously (or too aggressively): If you're 30 and hold everything in cash, inflation will erode your pot. If you're 60 and 100% in small-cap stocks, a market crash could devastate your retirement plans. Match risk to your time horizon.

Consolidating pensions into a SIPP

You can usually transfer old workplace or personal pensions into a SIPP. Benefits:

• One pot to manage
• Potentially lower fees
• Wider investment choice

Before transferring, check:

• Does the old scheme have exit fees?
• Does it offer valuable guarantees (e.g. guaranteed annuity rates, protected tax-free cash above 25%)?
• Are you in a defined benefit (final salary) scheme? Transferring out usually requires financial advice and is often a bad idea.

Transfers from defined contribution schemes are usually straightforward and take 4-8 weeks.

SIPP and Self Assessment

If you're a higher or additional-rate taxpayer, you must report your pension contributions on your Self Assessment tax return (SA100, box 1 on the main return).

HMRC will then calculate your extra relief and either:

• Reduce your tax bill, or
• Adjust your tax code to spread the relief over the next year

If you don't complete Self Assessment, call HMRC and ask them to adjust your tax code instead.

Death benefits

If you die before age 75, your SIPP can usually pass to your beneficiaries completely tax-free (subject to the Lump Sum and Death Benefit Allowance of £1,073,100—amounts over this are taxed at 25%).

If you die after 75, beneficiaries pay income tax at their marginal rate when they withdraw money.

Pensions don't form part of your estate for inheritance tax purposes, making them a very tax-efficient way to pass on wealth.

You nominate beneficiaries by completing an "expression of wish" form with your SIPP provider. This isn't legally binding but guides the trustees.

What to do next

If you're considering opening a SIPP or transferring existing pensions:

1. Compare platforms: look at fees, investment range, and customer reviews. Popular low-cost platforms include Vanguard, AJ Bell, Hargreaves Lansdown, Interactive Investor, and Fidelity.

2. Check your Annual Allowance: add up contributions to all your pensions this tax year. Make sure you're within £60,000 (or your tapered limit).

3. Claim higher-rate relief: if you've contributed this year or last and pay 40%/45% tax, file a Self Assessment return or call HMRC.

4. Get specific advice: if you're consolidating pensions, approaching retirement, or have a large pot, speak to a financial adviser. For tax questions, chat with AI Tax at myaitax.info for instant answers, or use AI Accountant for full tax planning and Self Assessment support.

A SIPP is a powerful tool for building retirement wealth with full investment control and generous tax breaks—but it requires active management and understanding of the rules. Take time to learn, compare costs, and make informed choices. Your future self will thank you.