MERCHANT AGREEMENT

Here are all the terms and conditions that will form part of your Merchant Agreement with us and can help you as a new Westpac Merchant customer.

Notice to Westpac Merchant Customers

Effective 1 October 2026, changes will be made to the documents which form part of your Agreement with us. A summary of these changes is listed below.

 

Merchant Business Solutions Card Acceptance by Business Terms and Conditions (Terms and Conditions)

 

Section What has changed 

1 – Your Merchant Facility Agreement

Updated the list of supporting documents that form part of your Merchant Facility Agreement by removing references to the conditions for surcharging requirements and adding a reference to the conditions of the Direct Debit Request Service Agreement.

2 – Definitions and Interpretation

Introduced two new definitions for “Non-Cash Payment Surcharge” and “Westpac Merchant Online Services”.

6 – Surcharging

Updated surcharging requirements to reflect regulatory changes:

  • From 1 October 2026, merchants must not apply a “Non-Cash Payment Surcharge” unless expressly permitted by Law or regulation.
  • If a merchant is expressly permitted to apply a “Non-Cash Payment Surcharge” by Law or regulation, the surcharge must be clearly disclosed before processing the transaction and included within the transaction amount rather than processed separately.

7 – Sale Refunds

Updated to clarify that merchants may process refunds using an approved Westpac refund channel, including “Westpac Merchant Online Services”, even where the original transaction was processed through a different approved payment method.

42 – Feedback and Complaints

Updated the complaint submission channels to direct customers to an online complaint form available on the Westpac website at: westpac.com.au/feedback.

Your guide to merchant fees and charges

 

Section What has changed

Fees and charges in detail

Updated the description of “Volume” to clarify that volume-based fees are calculated on the value and/or number of sale transactions plus the value and/or number of refund transactions.

Our Fees Explained

  • Updated the information relating to the “Monthly Terminal Fee” to simplify the fee explanation.
  • Updated to clarify that the “Flat Transaction Rate Merchant Service Fee” is subject to periodical reviews and may be adjusted twice per year (at the start of April and October) to reflect changes in processing costs. Merchant customers will be notified of any rate changes in writing or electronically.
  • Updated to clarify that the “Flat Transaction Rate Merchant Service Fee” pricing arrangement applies only if international sales transactions (sales transactions processed using foreign-issued cards at your merchant facility with Westpac) represent less than 25% of the total sales turnover over a six-month period. If your merchant facility no longer meets these eligibility requirements, we may transfer your facility to a different pricing arrangement. We will notify you before any change takes effect.

Frequently Asked Questions

How long before settlements reach my account?

EFTPOS

With Westpac instant settlement you can access your Westpac EFTPOS terminal takings almost instantly after settlement into your Westpac transaction account once every day by 9:30 pm – meaning you can start using your earnings immediately1.

Online/eCommerce

Online funds will generally be paid into your account within 24 hours if you have a Westpac account. Settlement occurs at 6:00pm (Sydney time) for online/eCommerce merchant facilities. On weekends and public holidays funds will be received the next business day.

How long after a transaction is processed does the cardholder have the right to dispute it?

Chargebacks can be processed to your account up to 18 months after the date of the original transaction. That’s why it’s essential to take steps to minimise fraud and chargebacks as set out in our Merchant Agreement documents.

Merchant Agreement and fees

Can I have my merchant fees reviewed?

Yes. Call our Merchant Business Solutions Helpdesk on 1800 029 749.

Can I close my merchant service at any time?

Yes, but this will be dependent on the terms of your agreement.

Statements

How can I request copies of my merchant statements?

Copies of your merchant statements are available for eligible customers using Westpac Online Banking or Corporate Online. If you aren't able to access these statements online, please call us on 1800 029 749, 24/7.

How do I get details for a merchant fee or request an adjustment on my merchant statement?

Call the Merchant Helpdesk on 1800 029 749 and provide the transaction reference number. 

Things you should know

1. Westpac instant settlement functionality is not available between 9:30 pm and 11:00 pm - Sydney time. You can only perform a settlement once a day, before 9:30 pm (Sydney time). A settlement done after 11:00 will be processed as a settlement for the next day. Subject to system availability, settlement can take place 7 days a week. Settlement must be to an eligible Westpac transaction account. Instant Settlement functionality is not available on Corporate Online. Instant Settlement is only available for Mastercard®, Visa® and eftpos transactions (plus UnionPay if using EFTPOS Connect).

Mastercard® is a registered trademark trademark of Mastercard International Incorporated. Visa is a registered trademark of Visa International Service Association. UnionPay is a trademark of UnionPay International Co. Ltd.

iPhone, iPad, iPod touch and Apple Watch are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a Service mark of Apple Inc.

Android, Google Play and the Google Play logo are trademarks of Google LLC.