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ISA or SIPP? Find what works for you

Tax-efficient ways to make the most of your money and reach your goals

  Important information - investment values can go down as well as up, so you may get back less than you invest. SIPP/ISA eligibility and tax treatment depends on individual circumstances and tax rules may change. Withdrawals from a Junior ISA are not possible until the child reaches age 18. You cannot normally access money in a pension until age 55 (57 from 2028).

Don't pay more tax than you need to

ISAs and Self-Invested Personal Pensions (SIPPs) are both tax-efficient ways to save as they each have their own valuable annual tax allowances. But how you choose to divide your money between them can depend on your future goals and what matters to you.

An ISA can be used to save for all sorts of goals as it's easy to access, while a SIPP is typically for retirement, as withdrawals from a SIPP will not normally be possible until you reach age 55 (57 from 2028).

We have a Stocks and Shares ISA and a Which? recommended SIPP, together with a Junior ISA and Junior SIPP.

Below we'll take you through the differences between Fidelity's ISA and SIPP.

Transfer to us and take control of your financial future. Feel confident you can reach your financial goals with our 50 years of investing experience.

We’ll also give you £300 to £3,000 when you apply to transfer and/or add a lump sum into our ISA or SIPP by 5 April 2026. Minimum value, exclusions, T&Cs apply.

Make the most of your tax allowances

ISA and pension allowances reset at the start of every tax year, which runs from 6 April to 5 April the following year. These allowances are separate, so you can put money in both types of accounts. You can also save for a child's future by investing in a Junior ISA and a Junior SIPP, which have their own tax benefits. If you’ve used your full pension and ISA allowances this tax year, you can still invest in our Investment Account.

  • Save up to £20,000 each tax year
  • You won't pay tax on growth, income or withdrawals
  • Take your money out at any time
  • Use it for goals like university fees, a house deposit, wedding or alongside your pension to save for retirement
  • Set up a regular savings plan from £25 or invest a lump sum from £1,000 
  • Choose from funds, shares (UK, US and Europe) investment trusts and exchange-traded funds (ETFs)
  • UK residents aged 18 and over can open one. Open a Junior ISA for under-18s.
  • You can get tax relief up to the Annual Allowance of £60,000 or 100% of your earnings if you earn less than this. For example, for every £80 you save, HM Revenue & Customs (HMRC) will add £20
  • If you pay a higher or additional rate tax, you can claim extra relief through your Self-Assessment tax return at the end of the tax year
  • If you have low or no earnings, you can still pay in £2,880 and HMRC will boost it to £3,600. Learn more about pension allowances
  • You won’t pay Capital Gains Tax on any growth in your investments
  • You can start taking out money from age 55 (rising to 57 from 2028)
  • You can take up to 25% tax free, within your lump sum allowance (LSA) The rest is taxed at your usual Income Tax rate
  • You can build up a savings pot to take an income from when you reach retirement. Your money’s locked away so you’re not tempted to dip in early
  • Set up a regular savings plan from £20 or invest a lump sum from £800
  • Choose from funds, UK shares, investment trusts and exchange-traded funds (ETFs)
  • Available to UK residents aged 18 or over (you can open a Junior SIPP for under 18s)

Getting started is easy

It's easy to open an ISA and a SIPP online and you have until 5 April 2026 to use this year’s allowances. Invest how you like:
 

  • Set up a regular savings plan from £25 for an ISA or £20 for your SIPP
  • Invest a lump sum from £1,000 in your ISA or £800 in your SIPP

Open a Stocks and Shares ISA

Invest in our Stocks and Shares ISA and pay no income or capital gains tax on any growth.

Start saving in a SIPP

A tax-efficient way to save for your retirement.

Move an ISA or SIPP to Fidelity

Transfer ISAs, pensions, investment accounts, or junior accounts to manage them quickly and easily all in one place.

Don’t forget, if you’ve used your full pension and ISA allowances this tax year, you can still invest in our Investment Account.

Visit our tax allowances hub to learn more about how allowances work, how to maximise your pension savings and the latest tax rates.

Why invest with Fidelity?

Investing is what we do and it’s been our passion to help people grow their financial wealth for over 50 years. We’re proud to be trusted by over 1.7 million investors in the UK*. We offer one of the widest fund ranges on the market, plus shares, investment trusts and ETFs  – and a range of tools to help make your investment decisions easier. 

We don’t like to blow our own trumpet but it’s nice when someone else does. We’re proud of our ‘Excellent’ rating on Trustpilot - and pleased to have been a Which? Recommended Provider for Self-Invested Personal Pensions for five years running.

1.7 million customers*

Our customers trust us with over £40 billion of investments, supported by our UK and Ireland-based customer service teams.

Over 50 years' experience

We've helped people just like you invest with confidence and build a more secure financial future since 1969.

Independently recognised

We've been a Which? Recommended Provider for Self-invested Personal Pensions for five years running.

If you have more than £100,000 to invest, our financial advisers can help you make the most of your money. Just call us on 0800 222 550 for a free, no-obligation discussion about your needs.

FAQs

Most people get a personal allowance - an amount of income you don't have to pay tax on. Any income above this is taxed at your income tax rate. You also have tax-free allowances for things like savings interest, dividend income and capital gains. An ISA is a tax-exempt account - as long as you don’t contribute more than its annual allowance allows. SIPP contributions are eligible for tax relief within pension allowances. 

Learn more about your tax allowances.

Yes, an ISA is tax-efficient for everyone, including higher-rate taxpayers. There’s no tax to pay on money you receive as income from your ISA investments. There’s also no capital gains tax to pay on growth.

Yes, a pension is tax-efficient for everyone, including higher-rate taxpayers. You receive tax relief at your marginal rate when you make contributions and can withdraw up to 25% of the value of your pension as a tax-free lump sum, as long as this amount is not more than your remaining lump sum allowance. Other withdrawals, or payments from an annuity, are then taxed as income.

Read more about the lump sum allowance

No, you don’t receive upfront tax relief on ISA contributions. However, you can take a tax-free income from your ISA later in life, whereas any income from a pension (after the 25% tax-free lump sum) is taxed at your marginal rate.

Yes, you can hold a SIPP together with a workplace or personal pension that you may have with us or another pension provider. This includes legacy defined benefit schemes, defined contribution schemes or stakeholder pensions.

Important information - this information and our tools are not a personal recommendation for a specific investment. You must ensure that the fund you choose is suitable for your individual circumstances and remains so over time. Seek advice if you're unsure.

*Source: Fidelity, as at 30.09.25.