OakNorth Bank has launched an easy-access Cash Isa with a top rate of 1.44%.
Available online, it sits just a whisker ahead of Shawbrook Bank offer of 1.43%.
Neither rate is boosted by a short-term bonus and there are no limits on the number of withdrawals.
Virgin Money pays a marginally higher 1.45% on its Double Take Isa, but limits you to two withdrawals a year.
The next best rate is 1.7% via Coventry Building Society, although you have to tie up your money until 31 May next year rather than for just 12 months.
In terms of easy-access taxable accounts, you can earn 1.51% with The Family Building Society, but the opening balance is £15,000, and you can’t add any money to your account after 8 March.