07/07/2026
At a glance
- A flat rate 22% charge will apply on the interest on cash held in investment ISAs.
- Money market funds held in an ISA won’t be classified as cash, and won’t be liable to the 22% charge, provided they don’t make up 100% of the ISA.
- A simpler first-time buyer ISA will be launched to replace the lifetime ISA. It will pay a government bonus, but there will be no exit penalties.
The government has announced a 22% charge on the interest on cash savings held within non-cash ISAs, including stocks and shares ISAs and innovative finance ISAs, from April 2027.
ISA providers and investors have been calling for government to give clarity on the treatment of cash holdings in non-cash ISAs. It follows the announcement in the Budget in November last year of a reduction in the annual tax-free cash ISA allowance for the under-65s from next April.
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