Cash or Consequences? The 2027 Cash ISA Changes Explained

From 6 April 2027, people under 65 can pay only £12,000 a year into a Cash ISA. The overall ISA allowance stays at £20,000, so anyone under 65 who wants to use it in full will need to put at least £8,000 into a Stocks & Shares ISA. Interest on cash held inside investment ISAs will also face a new 22% charge, and existing Cash ISAs don’t need to be moved.