Most UK savings accounts do not charge an opening or monthly fee, although some require a minimum deposit or regular payments. Check the terms for possible charges, such as fees for extra withdrawals, closing an account early or transferring money, particularly with fixed-rate or notice accounts. The main cost can be the interest you miss out on if your money is held in a low-rate account, so compare the AER as well as access conditions. Interest may also count towards your tax liability, depending on your circumstances; check the latest guidance on GOV.UK if you are unsure.