NatWest and RBS are offering among the best rates for savers able to put away the full £20,000 cash Isa allowance for this tax year before 5 May.
The banks will pay a 1 percentage point bonus for a year, worth an extra £200 in interest on balances up to £20,000.
The underlying rate with the easy-access NatWest Cash Isa is just 0.01% but the bonus boosts it to 1.01%. At RBS the standard rate is 0.05%, so you earn 1.05% including the bonus.
Coventry Building Society pays 1.05% on its Easy Access Isa Issue 5 with no bonus. Skipton Building Society has upped the rate on its Bonus Cash Isa to 1%, including a 0.35 percentage point bonus for a year. Unlike the Coventry and NatWest accounts, you cannot transfer your existing cash Isas into the Skipton deal.
On fixed-rate cash Isas, the top one year deal comes from Yorkshire Building Society at 1.1% fixed until the 30th April next year. Leeds Building Society pays 1.01% while Newcastle and Skipton Building societies along with Aldermore Bank pay 1%. For two years, the top rate is 1.25% from Yorkshire Building Society followed by 1.2% from Skipton Building Society and Aldermore Bank.
On taxable easy-access accounts Yorkshire Building Society pays a top 1.15% on its branch-based Single Access Saver. But you are restricted to making withdrawals on just one day of your choosing a year.
French-owned RCI Bank pays 1.1% on its internet-based Freedom Account with no withdrawal restrictions. Kent Reliance has upped the rate for new savers on its Easy Access account for new savers to 1% while Charter Savings Bank has launched its Easy Access 3 account at 1.01%.
This article was originally written for our sister magazine, Money Observer.