Overview
- The cut takes effect in April 2027, with most adults limited to £12,000 in cash ISA subscriptions each tax year.
- The overall ISA limit remains £20,000, with Chancellor Rachel Reeves framing the change as a nudge toward investing.
- People aged 65 and over keep the £20,000 cash ISA allowance under the exemption announced in the Budget.
- Anti-avoidance steps will levy interest treated as cash within stocks and shares ISAs and assess for cash-like holdings to prevent circumvention.
- UK Finance reports £207 billion in cash ISAs and £295 billion in notice accounts at end-September as households build precautionary buffers, while Murphy Wealth estimates a split cash-and-investment approach could add about £300,000 over 20 years versus cash only.