Fixed Rate Cash Isa 2025 Interest Rates. A cash isa can be an excellent way of shielding your savings from tax and can be especially useful when interest rates are high. Best cash isa rates uk 2025 whether you want to lock cash in for a set time or keep it easy access, use our comparison table to find the best isa with rates up to 5%.
A fixed rate doesn’t change. Put your money away for a fixed.