Charter Savings Bank has launched a one-year fixed rate bond paying a top 1.66% before tax (1.33% after tax), available online. The next best deals come from French-owned RCI Bank at 1.65% (1.32%).
The top rate on the high street is 1.25% (1%) from Leeds Building Society while Tesco pays 1.4% (1.12%) and United Trust 1.5% (1.2%) on telephone or postal accounts.
For two years you can earn 1.9% (1.52%) from RCI Bank while United Trust pays 1.85% (1.48%) and Tesco Bank 1.8% (1.44%).
On easy-access accounts you can earn 1.45% (1.16%) comes from French-owned RCI Bank while Shawbrook Bank pays 1.25% (1%). Both accounts are only available online.
Other top deals
At Virgin Money the rate is 1.26% (1.01%) on its Defined Access Saver, available online, through the post or in its branches. But you are limited to making three withdrawals a year on it.
Virgin also has a cash Isa version of the account - Defined Access Isa - also at 1.26% tax-free. Other good deals include Coventry Building Society's Easy Access Isa 3 at 1.3%.
On fixed rate cash Isas Britannia, a trading name at Co-op Bank, pays a top 1.4% fixed until 31 July 2017 or 1.5% until 31 July 2018.
With Tesco Bank you can earn 1.3% for one year, while other top two-year deals include Virgin Money, Leeds Building Society and Shawbrook Bank at 1.4%.
This article was originally written for our sister publication, Money Observer.