Understanding the New UK ISA Rules Effective from 6 April 2024

Financial Planner
David Mulcahy DIPFA LIBF
Having been in the profession since 1996, David has worked as an adviser, supervisor and manager but has decided to return to planning and assisting clients with their goals and objectives.

Understanding the New UK ISA Rules Effective from 6 April 2024

The Individual Savings Account (ISA) has long been a cornerstone of the UK's personal finance landscape, providing a tax-efficient way for individuals to save and invest. From 6 April 2024, significant changes to the rules governing ISAs, came into effect. This blog will break down these changes and what they mean for savers and investors in the UK.

Overview of ISAs

ISAs offer a flexible and tax-efficient way to save and invest. There are several types of ISAs available, including:

  • Cash ISAs: Savings accounts for up to £20,000 per annum where interest is tax-free.
  • Stocks and Shares ISAs: Investment accounts for up to £20,000 per annum where returns are tax-free.
  • Junior ISAs: Savings or Investment accounts for up to £9,000 for investors under age 18.
  • Innovative Finance ISAs: Allow investment of up to £20,000 in peer-to-peer lending.
  • Lifetime ISAs (LISAs): Designed to help people save for their first home or retirement, up to £4,000 per annum from age 18.

Changes Effective from 6 April 2024

  1. Increased Annual Allowances

British ISA Allowance: In his 2024 Budget, chancellor Jeremy Hunt proposed a “British ISA” designed to encourage investment in UK-focused assets while still allowing tax-efficient growth. This new option would include an additional £5,000 allowance, bringing your total potential annual ISA contribution to £25,000 but this is still to be confirmed with a consultation period having closed in June2024.

Lifetime ISA (LISA) Allowance: The annual allowance for LISAs will remain at £4,000. However, the government bonus remains a significant incentive, providing a 25% bonus on contributions up to the £4,000 limit, equating to a maximum of £1,000 per year in government contributions.

  1. Flexibility and Transfers
    • The new rules will continue to support the flexible ISA policy. This means if you withdraw money from your ISA, you can replace it within the same tax year without reducing your annual allowance.
    • Partial Transfers: One of the notable changes is the enhanced ability to make partial transfers between ISAs. This allows you to transfer a portion of your funds from one ISA to another without affecting your annual allowance. This added flexibility helps in managing different investment strategies or accessing funds without disturbing your overall ISA portfolio.
    • Subscribe to Multiple ISAs of the Same Type: Another significant update is the ability to subscribe to multiple ISAs of the same type within the same tax year. Previously, you could only open and contribute to one ISA of each type per tax year. Now, you can spread your annual allowance across multiple providers within the same ISA category (e.g., multiple Cash ISAs), offering more flexibility and potentially better returns through diversified offerings.
    • Transfers between different types of ISAs (e.g., Cash to Stocks and Shares ISA) will remain permitted, allowing savers to adjust their strategies based on their financial goals and market conditions.

Strategic Considerations

With the increased allowances and added flexibility of partial transfers, savers and investors should revisit their financial strategies. Here are a few tips:

  1. Maximise Contributions Early: By contributing early in the tax year, you can take full advantage of tax-free growth and compounding.
  2. Save tax: For the first time in some years people are finding they have savings tax to pay on their cash deposits due to the increased interest rates.  By moving your allowance each year in to ISA you can avoid this.
  3. Diversify Investments: Use the ISA allowance to diversify your investments across different asset classes within Stocks and Shares ISAs.
  4. Utilise the Flexibility: Take advantage of the flexibility to withdraw and replace funds within the same tax year for liquidity needs without losing the tax benefits.
  5. Partial Transfers for Strategic Management: Use partial transfers to optimise your ISA investments without having to move the entire account. This can be particularly useful for rebalancing your portfolio or accessing funds while keeping the rest invested.
  6. LISA for Long-Term Goals: For those eligible, maximizing LISA contributions can significantly boost savings for a first home or retirement due to the government bonus.


The changes to ISA rules from 6 April 2024, particularly around the ability to make partial transfers and save in to multiple of the same ISA type, offers enhanced opportunities for UK savers and investors. By understanding these changes and incorporating them into your financial planning, you can make the most of the tax-efficient savings and investment options available.

Remember to consult with your Riverfall Financial Planner to tailor these strategies to your individual circumstances and goals and if you haven’t used your allowances this year then do please get in touch.

Happy saving and investing!

For ISA's, Investors do not pay any personal tax on income or gains, but ISAs may pay unrecoverable tax on income from stocks and shares received by the ISA managers. Tax treatment varies according to individual circumstances and is subject to change. Stocks and Shares ISAs invest in corporate bonds; stocks and shares and other assets that fluctuate in value. You will incur a Lifetime ISA government withdrawal charge (currently 25%) if you transfer the funds to a different ISA or withdraw the funds before age 60 and you may therefore get back less than you paid into a Lifetime ISA. By saving in a Lifetime ISA instead of enrolling in, or contributing to, an auto-enrolment pension scheme, occupational pension scheme, or personal pension scheme: (i) you may lose the benefit of contributions from your employer (if any) to that scheme; and (ii) your current and future entitlement to means tested benefits (if any) may be affected.

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