Latest News About New ISA cash tax rule set for 2027

The UK tax authority HMRC will introduce a new charge when the rule begins in April 2027. Cash kept inside stocks and shares ISAs will incur a 22% tax on any interest earned. The measure aims at savers who keep cash in these tax‑free wrappers. It seeks to stop the practice of using ISAs as a shelter for interest without market risk. Existing cash balances will be under the charge from the start date. The change will affect new and existing accounts alike.

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