Help & Support

  1. Business
  2. Help and support
  3. Internet Banking for Business
  4. Mobile authentication
  5. How to use mobile authentication

How to use mobile authentication

You’ll need to set up the BNZ Mobile Business Banking app first, so you can use mobile authentication. It works with your user ID, access number and password to provide an extra layer of security, commonly referred to as two-step authentication, to your Internet Banking for Business on desktop.

You can use it anytime authentication is required; most commonly when you log in.

 Setting up the BNZ Mobile Business Banking app

  1. Download the BNZ Mobile Business Banking app on Google Play for Android, or the App Store for iOS.
  2. Open the app and follow the instructions to activate the app on your mobile device.
    • You’ll need a valid mobile phone number entered in your Internet Banking for Business settings, and access to your email address.

Download the quick reference guides or watch the video

  • How to install the BNZ Business app for Android (PDF 321KB)
  • How to install the BNZ Business app for iPhone (PDF 373KB)

Find out more about the BNZ Mobile Business Banking app.

How to use mobile authentication

  1. Go to the BNZ Business Banking home page and click Login at the top right-hand corner.
  2. Enter your 9-digit access number, user ID, and password, then click Log in.
  3. When you’re presented with the authentication screen, select Use BNZ Business Banking app.
  4. Open the Mobile Business Banking app on your mobile device and tap Approve</strong to confirm the request.

Temporary access without mobile authentication

If you urgently need to access your Internet Banking for Business and you’re temporarily unable to use mobile authentication, you can request temporary access.

Request a temporary bypass if mobile authentication is not available

  1. Print out and complete the Temporary bypass form PDF 79KB
  2. Get the form signed by the owner(s) of your company’s BNZ bank accounts.
  3. Scan and email the form to onlinerequests@bnz.co.nz or fax it to +64 4 474 7777. 

We’ll email you to confirm when we’ve processed the form. On business days, this usually happens 2-3 hours after we get a signed copy of your form.

Setting up user access

Site Administrators can set the type of access a user has for the BNZ Mobile Business Banking app within the Administration tab in Internet Banking for Business. This means customers can be restricted to using the app for authentication only. You can do this by following the steps under Restricting access to Mobile Business Banking.