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How do I make a payment with a third-party service provider?

Pay for purchases directly from your bank account through a third-party service provider using Open Banking. You can authorise either a one-off payment or an ongoing payment.

  • Authorising a one-off payment allows a third-party to make a single payment from your account.
  • Authorising an ongoing payment allows a third-party to make multiple payments from your account, up to a maximum payment limit.

Authorise a one-off payment using Open Banking

  1. Shop for goods or services using your web browser or digital device.
  2. At the checkout, choose the payment option to pay from your account.
  3. Select Westpac.
  4. You’ll either be taken to the Westpac One login screen or be instructed to log in to your account. You can do this on another device or in a new browser tab.
  5. Log in to your Westpac account and review the payment request.
  6. Choose which account you’d like to pay from.
  7. Select Approve to authorise the payment or Decline if you don’t want to authorise it.
  8. Follow the instructions on the merchant or third-party service provider’s website to complete your transaction.

Authorise an ongoing payment using Open Banking

  1. Shop for goods or services using your web browser or digital device.
  2. At the checkout, choose the payment option to pay from your account.
  3. Select Westpac.
  4. You’ll either be taken to the Westpac One login screen or be instructed to log in to your account. You can do this on another device or in a new browser tab.
  5. Log in to your Westpac account and review the payment request.
  6. Confirm which account you’d like to pay from.
  7. Review the Payment limits. These could include:
    • Maximum spending limit. The maximum total amount of all payments the third-party is authorised to make over the period you’re giving them access
    • Single payment limit. The maximum amount you’ll be charged for a single transaction
    • Total transaction limit. The total number of payments the third-party is authorised to make
    • Spending limit. The total value of all payments the third-party is authorised to make in a specific period. For example, a Monthly spending limit
    • Transaction limit. The total number of transactions the third-party is authorised to make in a specific period. For example, a Monthly transaction limit.
  8. Select Approve to authorise the payment or Decline if you don’t want to authorise it.
  9. Follow the instructions on the merchant or third-party service provider’s website to complete your transaction.

Tip: To confirm if the site is secure, check Am I on the real Westpac online banking site?

Learn more about Open Banking.

Westpac is not responsible for any third-party services. Third-party terms and conditions may apply. If you have any concerns or issues with any third-party services, please contact the relevant third-party service provider.