Mastercard outage disrupts payments in Australia

Shoppers across several Australian states faced declined Mastercard transactions during a payment disruption that affected in-store and digital purchases. Customers reported failed card payments at checkouts, problems using Apple (AAPL) Pay and difficulties withdrawing cash, with some unable to complete transactions and leaving shopping behind.

The disruption led to a noticeable impact on everyday spending, particularly for those relying on Mastercard for groceries and other routine purchases. Retailers and customers encountered repeated declines, creating delays at point of sale terminals and interrupting normal payment flows.

Commonwealth Bank told customers that Mastercard payments were being declined due to what it described as a global Mastercard issue. The bank said services were starting to be restored around 4pm and provided specific guidance for those still experiencing problems.

Customers who continued to see their Mastercard payments declined were advised to insert their card and select the savings option to process payments via eftpos. This workaround allowed some cardholders to complete transactions despite the broader disruption affecting standard credit card processing.

Mastercard stated that the interruption to its services was caused by a scheduled system update. During this period, some Mastercard transactions were declined, affecting consumers and merchants attempting to process payments.

The company later said that the issue had been resolved and that all systems were working as normal. This confirmation indicated a return to standard processing for Mastercard payments after the earlier wave of declines.

User-report tracking service Downdetector logged more than 1,700 reports of Mastercard-related issues at about 3pm on Saturday. Within roughly two hours, those reports had fallen to about 173, reflecting a sharp decline in new complaints as services were restored.

The pattern of outage reports mirrors the timing described by banks and Mastercard, with a clear mid-afternoon spike followed by improvement later in the day. The data underscores that the disruption, while visible across the country, was relatively short-lived.

By later in the day, both Mastercard and affected banks indicated that payment services were being restored and were functioning normally. This marked the end of a disruption that had briefly affected point-of-sale purchases, contactless payments and some ATM withdrawals.

The incident highlighted how a technical issue during a scheduled update can quickly translate into widespread inconvenience for cardholders. It also showed how banks and networks can mitigate impact through alternative payment routes such as eftpos while core services are brought back online.