ISA allowance cut – Autumn Budget blog
What the ISA allowance change means for you — and how we can help
Following the Autumn Budget, the government has confirmed that from the 2027/28 tax year, the maximum amount you can pay into a cash ISA will be reduced from £20,000 to £12,000 if you are under age 65. Importantly, the overall ISA allowance will remain at £20,000, meaning the balance can still be used across other ISA types such as stocks & shares ISAs.
For many people, this is a significant shift. It reduces the amount of savings you can hold tax-free in cash each year, and it may influence how you think about saving for the future.
But it also creates a natural moment to pause, reflect and consider whether your current approach is still right for what you want to achieve. For some, this will be the time to explore whether investing could play a bigger role in shaping a more confident financial future.
Why the change matters
Cash ISAs have long been valued for their simplicity and safety. They offer a tax-free home for savings without exposure to market fluctuation. From 2027/28, savers under 65 will only be able to put up to £12,000 of their annual ISA allowance into cash.
However, with the overall £20,000 ISA limit remaining intact, more savers may naturally consider using the remaining allowance through a stocks & shares ISA or other ISA products that offer growth potential.
The intention behind the reform is to encourage more people to look at long-term investing. While investing can feel unfamiliar if you have mainly held cash, it also opens the door to exploring how your money could work harder over time.
How this could impact you
This change has several practical implications:
- Less of your ISA allowance will be available for cash savings: This may mean adjusting how you divide your £20,000 overall allowance.
- More of your ISA allowance may be directed toward investments: The remaining portion, up to £8,000, can still be used in a stocks & shares ISA or other ISA types.
- Your long-term planning may shift: The reduced cash limit encourages a more balanced approach between saving and investing.
How we can help
This is where thoughtful, personalised advice becomes invaluable. We can:
- Review your current ISA and savings approach.
- Help you understand how the new rules from 2027/28 will affect your plans.
- Explore whether a stocks & shares ISA or blended investment approach supports your goals.
- Build a diversified portfolio that balances risk and opportunity.
- Offer wider tax-efficient planning across pensions, investments and emergency cash reserves.
Looking ahead with confidence
While the updated rules may feel restrictive, they may also be the nudge many need to take a more proactive approach to investing. With the right plan, your money can be positioned to support your long-term ambitions, from retirement planning to supporting family or creating financial freedom later in life.
If you’d like to revisit your savings and investment strategy, please get in touch. Together we can build a plan that’s smarter, more tax-aware and aligned with the future you want to create.
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.
Approved by The Openwork Partnership on 27/11/25
The Mortgage Store is a trade name of James Weir Finanial Services LLP which is an appointed representative of The Openwork Partnership, a trading style of Openwork Limited which is authorised and regulated by the Financial Conduct Authority.
