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Individual Savings Accounts (ISAs)

ISAs protect your savings and investments from tax completely. With £20,000 allowance each year, they're essential for anyone serious about building wealth that lasts.

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The tax efficiency of ISAs is based on current rules. The value of your investment can go down as well as up and you may get back less than you invested.

Tax concessions are not guaranteed and may change.

This information is for guidance only and does not constitute financial advice.

Investment and Pension advice is provided via a referral to a specialist.

Individual Savings Accounts (ISAs) Guide

When paying tax on your savings feels unfair Every time your savings earn interest or your investments grow, the government wants a share. Under current rules, qualifying interest, income and capital gains are tax-free while held in an ISA. With £20,000 protection available each year, they’re not just useful, they’re essential for anyone who doesn’t want to share their hard-earned returns with HMRC.

Types of ISAs available:

Cash ISAs protecting savings interest from all income tax with instant access or fixed rates
Stocks and Shares ISAs sheltering investment growth and dividends from capital gains and income tax
Lifetime ISAs allowing contributions until age 50 of up to £4,000 per tax year within the £20,000 overall ISA allowance, with a 25% government bonus of up to £1,000 per year. *Charge-free first-home withdrawals require a property costing £450,000 or less, bought with a mortgage through a solicitor or conveyancer at least 12 months after your first Lifetime ISA payment, subject to the qualifying purchase rules. Withdrawals are also charge-free from age 60 or if you are terminally ill with less than 12 months to live. Other withdrawals normally incur a 25% charge on the amount withdrawn, including the bonus, which can leave you with less than you contributed.
Junior ISAs giving children £9,000 tax-free allowance to build wealth from birth
Flexible ISAs allowing cash withdrawals to be replaced during the same tax year without reducing the current-year allowance, where the account is flexible

The Personal Savings Allowance is £1,000 for basic-rate taxpayers, £500 for higher-rate taxpayers and £0 for additional-rate taxpayers. Cash ISA interest is tax-free regardless of your income.

Investment growth and dividend income are completely protected from capital gains tax and income tax. Over decades, this tax protection can save tens of thousands compared to taxable investing.

You get £20,000 ISA allowance each tax year – unused allowance cannot be carried forward. Under current rules, qualifying interest, income and capital gains remain tax-free while the money stays in an ISA. Tax rules may change in future.

Use the official ISA transfer process to move savings between providers, subject to transfer rules and provider terms. You can pay into multiple cash or stocks and shares ISAs in the same tax year, but only one Lifetime ISA. The £20,000 annual ISA allowance applies across your adult ISAs, not to each account separately.

Allowances correct as of 2026/27 tax year.

Common ISA planning strategies

Maximising Annual Allowances

Use your full £20,000 each year across different ISA types. Start early in the tax year to give investments longer to grow tax-free before the next allowance arrives.

Cash vs Investment Balance

Keep emergency funds in cash ISAs for security, but use stocks and shares ISAs for long-term wealth building, where tax protection provides the greatest benefit.

Family ISA Planning

Parents can contribute to children’s Junior ISAs (£9,000 each) while maximising their own allowances. This creates powerful family wealth-building opportunities over generations.

Lifetime ISA Considerations

You must be aged 18 or over but under 40 to open a Lifetime ISA and make your first payment before turning 40, subject to eligibility rules. Lifetime ISAs offer 25% government bonuses for first homes or later life, but unauthorised withdrawals normally incur a 25% charge.

An ISA is a medium to long term investment, which aims to increase the value of the money you invest for growth or income or both. The value of your investments and any income from them can fall as well as rise. You may not get back the amount you invested.

HM Revenue and Customs practice and the law relating to taxation are complex and subject to individual circumstances and changes which cannot be foreseen.

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