Coventry Building Society's 60 Day Notice ISA 3 offers savers a rate of 2.8% AER.
If you haven't already opened a cash ISA for the current tax year (2012/13), with less than two weeks to go this account might be worth considering.
Because it's a notice account, savers must notify Coventry 60 days before withdrawing any money from the account, otherwise they will lose 60 days' interest as a penalty.
The only catch is that the rate includes a 0.6% 12-month bonus, so you will need to remember to shop around for the best rate available after the 12-month period is up. You can open the account with just £1, but transfers in from other cash ISAs are not permitted.
Find the best Cash ISA or savings account for you
Savers can manage their account online, by post, over the phone or in branch. To take advantage of the rate, savers need to act fast, as the account may be withdrawn at any time.
For more information about the account and to find your nearest branch, go to coventrybuildingsociety.co.uk or call 0845 766 5522.