Key Takeaways
- The Treasury has announced new rules for ISAs to deter investors from parking cash or equivalent assets in the stocks and shares wrapper and using the fuller allowance.
- The rules come as savers prepare for the cash ISA limit to fall from £20,000 to £12,000 in April 2027, a move designed to encourage more savers to invest in equities.
- The government has also launched a consultation on replacing the Lifetime ISA with a product designed solely for saving toward purchasing a first home.
This week may have been dominated by the drama in Westminster after Keir Starmer’s resignation, but there has also been plenty going on behind the scenes for savers and investors. The UK government has just tightened ISA cash rules ahead of key changes next year, while a consultation has been launched on the future of the Lifetime ISA, a key savings product for younger people. Experts say the changes could end up making the current savings regime even more complex.
Rachel Reeves, who is likely to be deposed as chancellor in an Andy Burnham government in the coming months, announced in the 2025 Autumn Budget that the cash ISA limit would be reduced in April 2027 from £20,000 to £12,000. This was designed as a behavioral nudge by the government to reduce Britons’ dependence on cash deposits and encourage savers to embrace equities.
With the stocks and shares limit remaining at £20,000, this potentially created a loophole where savers could hold “cash-like” securities within a wrapper designed for stocks because it has a more generous allowance.
To close this loophole, this week the Treasury published what it called “anti-circumvention” rules for ISAs, imposing a flat 22% tax on income paid on cash within stocks and shares ISAs. But this doesn’t mean cash or cash-like assets can’t be held outside the cash ISA wrapper.
Key ISA Savings Changes at a Glance
- From April 2027, the limit for cash ISAs will drop to £12,000 for those aged 65 or younger, but the stocks and shares ISA will still allow £20,000 of investments.
- A 22% tax on income will apply on cash assets held within a stocks and shares ISA.
- Money market funds will be classed as “cash-like” holdings but not be taxed at this 22% rate as long as they don’t make up 100% of the total.
- Savers will not be able to make transfers from non-cash ISAs into cash ISAs.
Are ISAs Becoming More Complex?
Quilter tax and financial planning expert Rachael Griffin welcomes the government stepping back from a broader restriction on cash-like assets. However, she says significant gaps remain in how the policies will be implemented.
“The ambition to encourage more people to invest is right, but the proposals also show why the ISA system works best when it is simple, trusted and easy to understand,” she says.
“A 22% charge on cash interest inside stocks and shares ISAs, new rules for money market funds and restrictions on transfers all risk making the product feel more complicated at precisely the point policymakers want cautious savers to take their first steps into investing.”
First Time Buyer ISA Consultation
The Treasury also published a consultation on a new First Time Buyer ISA to replace the current Lifetime ISA (LISA), aiming to simplify the product for aspiring homeowners.
The existing LISA product can be used to save toward buying a first home or to save for retirement, with investors able to place £4,000 a year in the product. The government then pays a 25% bonus into the account after each deposit.
The new First Time Buyer ISA will be used solely for saving toward purchasing property, removing the option to use the product to save for retirement, and can only be used to purchase homes with a mortgage.
Rather than receiving the government bonus each time a deposit is made into the account, savers using the new product will receive the bonus when they use the money to buy their first home. This removes the need for the 25% early withdrawal penalty in the current LISA. However, investors will miss out on investment growth from the current bonus.
Lifetime ISAs Are Confusing
Crucial details are still awaited such the ISA limit, property price cap, and the level the government bonus will be set at.
Rebecca Williams, financial planning divisional lead at Rathbones, welcomed the move toward a single-use product, saying the LISA’s dual mandate created unnecessary confusion for savers.
“A more focused product that is solely geared toward getting on the housing ladder should be easier to understand and use in practice, particularly as it removes the withdrawal penalty that proved so contentious with the LISA.”
Rachel Vahey, head of public policy at AJ Bell, says the missing detail makes it difficult to judge whether the new product will be a meaningful improvement.
“Moving away from an upfront bonus should make the system simpler,” she says.
“Paying the bonus only when someone buys their first home removes the need to claw money back through a withdrawal charge if the savings are used in a different way,” she adds.
“But this simplicity comes at a cost. Savers will lose out on the investment growth they could have earned on the bonus while building up their deposit. For some first-time buyers, that could mean having less money available when they come to purchase a home.”
