The £12k Cash ISA Cap Is Coming: Act This Year

From 6 April 2027, under-65s can only pay £12,000 of their £20,000 ISA allowance into a cash ISA; the remaining £8,000 has to go into investing-style ISAs. The 2026/27 tax year is the last full year at the old £20,000 cash limit, so if you want to shelter more cash tax-free, this is the year to use it.