The Good Green Bank. At Tandem Bank we have a mission to help you spend your money positively, and save your money effortlessly and ethically. Absolutely stress free. Featured by Which?, The Sunday Times, The Independent, thisismoney.co.uk and City AM. How can we help you? Not only does our Instant Access Saver help you save and earn interest, it will help towards environmentally friendly projects, and you have easy access to your cash when you need it. Make the most of your money by opening a Digital Fixed Saver. The more you lock away, the higher your return will be. Signing up and opening an account with Tandem only takes a matter of minutes on your mobile phone, and you can use the convenience of Open Banking to fund your accounts without leaving your device
