Join anytime, anywhere Already a TSB customer? Already with us? Open saved form The easiest way is to log in to Online Banking and click 'Apply' on the left hand menu. Alternatively, give us a call on 0800 872 226. Before we start To join online you'll need to: be 18 years old or over have a valid New Zealand Passport or New Zealand Driver's Licence be applying for an individual or joint account use a smart phone or computer with a webcam This process is likely to take around 10-15 minutes to complete. You are completing a secure application. Let's get started!