The Real Cost of POS Downtime for Australian Restaurants

On the morning of 8 November 2023, a routing fault in the Optus network knocked out mobile, internet and fixed-line services across Australia for almost 12 hours. More than 400,000 businesses were affected before services began returning that afternoon. Restaurants and cafes relying on Optus for EFTPOS could no longer take card payments. From inner Sydney to regional Queensland, venues put up handwritten ‘cash only’ signs just as many customers had stopped carrying cash.

The venues were not at fault. A router failed beyond their control, taking down infrastructure that usually sits unnoticed in the background. That is the reality of POS downtime. Operators cannot prevent every network failure, but they can prepare the business to keep moving when one happens.

The trade-off underneath every POS decision

When costs are tight, operators tend to compare POS systems by monthly fees, hardware costs and contract length. Resilience is harder to put in a spreadsheet, so it often gets overlooked. Backup connectivity, offline-capable terminals and cellular failover all take money and time to set up. For a hospitality business running on thin margins, putting that spend off can feel reasonable. Then something fails, and the cost lands all at once through lost sales, wasted labour and a service that never quite gets back on track. That trade-off shapes every POS decision.

What downtime actually touches

The guest who cannot pay and walks out is the obvious loss. The bigger cost often comes from everything that follows. Staff switch to handwritten dockets and shouted kitchen orders, getting less done while wages keep adding up. Kitchens that rely on digital displays lose the sequence that holds service together. A manageable Friday service starts to unravel, and the team spends hours catching up. Guests mid-meal are left waiting with no clear answer. The frustration may surface later in a review that remembers the disorder, not the food.

The RBA's consumer payments data indicated that around 15% of payments were made in cash in 2025. The preference for card and mobile payment makes everyday service faster, but it leaves venues exposed when processing goes offline. During the Optus outage, businesses across the country faced customers with no workable way to pay.

Comparing systems on what Australian operators actually weigh

Price, ease of installation and finding a genuinely all-in-one solution are the factors Australian restaurant owners most often cite when choosing a POS, according to Toast's industry research. Reliability rarely appears as a stated criterion in the same surveys, not because operators do not care about it, but because it is difficult to compare on a spec sheet. Every vendor will describe their uptime in reassuring percentages that sound similar until the day one of them fails and the other does not.

POS systems generally fall into three setups, and each handles outages differently. On-premise systems keep most data and order processing at the venue, allowing service to continue when the internet drops. A local power, server or router failure can still bring the operation to a halt. 

Cloud-first systems are simple to update and manage across locations, but venues without offline capability or local backup can lose key front-of-house functions when the connection drops. Hybrid or offline-capable systems continue taking orders and payments, then sync the data after reconnecting. They cannot prevent every failure, but they give the restaurant a better chance of staying open through a connection issue.

There is no universal best choice. Reliable internet at one location is a different proposition from a multi-site operation running peak Saturday service. The system needs to suit the venue’s real exposure, not simply sound reassuring in a sales pitch.

What the research says operators are doing about it

Restaurant & Catering Australia's National President, John Hart OAM, has been vocal about the pace of change in how Australians pay for hospitality, most recently responding to the federal decision to ban card payment surcharges on EFTPOS, Mastercard and Visa transactions from 1 October 2026, and calling for genuine transition support for operators as the reform lands. Whatever the detail of that particular change, it points to a pattern operators are increasingly living with: the payments infrastructure underneath a restaurant keeps shifting, largely outside the operator's control, which makes the reliability of the system they do control, the POS itself, one of the few variables left to manage.

Toast's 2025 research backs this up from the operator side. Most Australian operators surveyed said their POS is the software tool they use most regularly in the business, ahead of scheduling, inventory or communication tools.

The same survey showed that POS upgrades feature clearly among the technologies Australian operators want to invest in, behind inventory management software but ahead of recipe tools. That lines up with the wider finding from the Voice of the Australian Restaurant Industry report that 67% of Australian restaurants expect their technology spend to increase over the next year. 

Matching the response to exposure

A restaurant in the Sydney or Melbourne CBD generally has more than one mobile carrier and internet provider to fall back on if a single network fails. A venue in regional Western Australia, the Northern Territory or a small town on Tasmania's north coast often has one realistic connectivity option, and if that provider has an outage, there is no quick switch to a competitor down the road. 

This is one reason the Optus outage affected venues so differently. A Melbourne cafe on a different network kept trading while a regional venue two states away, dependent on the affected carrier, had no alternative but to wait it out. This is not an argument against technology adoption in regional hospitality, since the same tools solving staffing and inventory problems in those markets are worth having. It is an argument for weighing redundancy more heavily where there genuinely is no fallback network to lean on.

None of this means every venue needs the most heavily redundant setup available. It means matching the level of protection to the level of risk actually carried by the location. A busy CBD site with strong connectivity options may get most of the benefit from an offline-capable restaurant POS on its own, since a single network failure is unlikely to take out every option at once. 

For a regional venue on a single carrier, cellular backup and hardware and payment terminals that support offline payment processing can keep service moving when the connection drops. Without another network to lean on, that protection matters. A handheld POS also reduces the disruption caused by one failed terminal, as staff can keep taking orders at the table. Clean reporting after reconnection is just as practical. Poor reconciliation can turn a short outage into hours of admin. Operators are better prepared when they ask providers about their venue’s location and connectivity instead of relying on a broad reliability promise.

What this means for the next system you choose

An hour of downtime is never really an hour. It is the sale lost while the system was down, the labour spent working around it, the kitchen backlog it leaves behind, and the guest experience it damaged before service even had a chance to recover. 

Australian operators are clearly not backing away from technology because of that risk, they are investing further into it. The more useful question, the one price alone will not answer, is whether the system being chosen is built to keep the restaurant running on the day the network is not.