Nationwide launches Cash ISAs with up to 4.25% interest, including a 5-year fixed option, as savers rush to use their full £20,000 ISA allowance before it drops in 2027.

Nationwide Building Society has launched new Cash ISAs with rates up to 4.25%, including a 5-year fixed option, as competition grows ahead of the 2026-27 tax year. New one-year single access ISAs offer 4.00% AER but limit withdrawals to one during the term, or the rate drops to 1.05%. The changes come as savers aim to maximize their £20,000 annual ISA allowance before it drops to £12,000 for under-65s in April 2027. Fixed-rate accounts are attracting interest for locking in returns amid expected future rate cuts, though some easy access ISAs now offer similar yields with no withdrawal restrictions.