Cheltenham & Gloucester has revealed plans for its cash ISA two months before launch date.
C&G says that it wants potential clients to be aware of how the account will work from day one.
Opening arrangements can be made from February 1 and funds will be transferred automatically from either a customer's C&G account or credited by personal cheque on 6 April.
Before 6 April, plans can be cancelled free of charge.
C&G is also guaranteeing that its Cash ISA rate will match the bank base rate on 6 April.
The account can be opened with a minimum investment of £1,000 and a maximum of £3,000 and will offer no notice access subject to a charge equivalent to 7 days' gross interest on the amount withdrawn.