The Reserve Bank of Australia (RBA) has ignited a financial firestorm with its ambitious plan to redefine the nation’s payments industry. At the heart of this reform is a radical proposal to ban surcharging on debit, prepaid, and credit card transactions by July 2026. What the RBA is aiming to do is clear: placing an estimated $1.2 billion annually in consumers’ pockets and ending a system where low-cost debit card users pay for the rewards programs of high-cost credit card users.

However, the action has sparked a venomous reaction from the country’s most powerful financial institutions. Australia’s “big four” banks—Commonwealth Bank of Australia (CBA), Westpac, National Australia Bank (NAB), and ANZ—have threatened apocalyptic “unintended consequences.” They argue that this regulatory overhaul will ramp up yearly card charges, cut interest-free periods, and drastically deflate loyalty schemes.

This isn’t simply a question of consumer fees; it is a fundamental dispute about who gets paid in the new payment system.

While the RBA’s modeling suggests that 90% of businesses will benefit from the changes, the 10% of small and 12% of large businesses that are already reliant on surcharging, particularly in sectors like hospitality and tourism, will need to pass on costs or lift their base prices. The regulators’ essential dilemma is how to guide this change without causing a value shift that penalizes consumers in other ways, particularly by imposing charges on other, unregulated payment systems.

The Sources of the Struggle

With responsibilities under the Payment Systems (Regulation) Act 1998, the RBA is the guardian of a payments system that must be secure, competitive, and efficient. With electronic and digital payments now dominating the economy, the RBA has undertaken a broad review aimed at addressing what it sees as a system running on autopilot. As RBA Governor Michele Bullock has said, the time has come to address the “high costs and inefficiencies in the system.”

To understand the tension of the day, one must go back. During the early 2000s, the RBA noted a stark inefficiency where consumers were being charged to access the low-cost EFTPOS system, and the more expensive credit card transactions were being utilized at no expense. To rectify this, the RBA removed “no-surcharge” regulations by card networks, thereby allowing businesses to charge customers back the acceptance costs. The goal was to incentivize consumers to choose cheaper payment methods and improve overall system efficiency.

But two decades later, that framework has created new problems. The RBA and consumer advocates argue that surcharging is no longer an effective price signal. First, cash usage has plummeted from approximately 70% in 2007 to only 13% in 2022, making it difficult for consumers to avoid the use of card payments altogether. Second, the majority of merchants currently impose a single, “blended” flat surcharge on all cards, which compels debit card users to pay more than the merchant’s actual cost. The Australian Competition and Consumer Commission (ACCC) has also had “considerable difficulties” in enforcing excessive surcharging rules, leading to widespread consumer confusion.

The RBA’s Proposal

The RBA’s proposal is not a point solution but a long-term strategy to reshape the payments system. It is founded on three pillars.

Ending Hidden Fees: The Proposed Surcharge Ban The most newsworthy and headline-grabbing component is a ban on surcharging for accepted card schemes, including Visa, Mastercard, and EFTPOS. The RBA’s preferred solution is to remove its ban on card networks from making “no-surcharge” conditions. The RBA expects the card networks themselves to implement their own bans as a result of this. Alternatively, if that fails, the RBA would recommend government regulation to ban surcharging wholesale. The ban is aimed at providing Australian consumers with an estimated saving of $1.2 billion annually and creating a world where “the price you see will be the price that you pay.”

Capping the Core: The Battle Over Interchange Fees Whereas the prohibition of surcharging has been in the spotlight for the general public, the real structural reform is to reduce interchange fees. These are charges that a merchant bank pays to a customer’s card-issuer bank when a payment is taken. The RBA has proposed lowering the domestic credit interchange cap to 0.3% of the amount being transacted. The RBA’s view is that these changes would save up to $1.2 billion annually in interchange fees for businesses and would leave 90% of businesses better off.

The table below provides an easy comparison between the historical average fees and the proposed new caps.

The justification for this fee cut is to specifically target the cross-subsidization of high-cost credit card users at the expense of low-cost debit card users. Bank-to-bank transaction fees, which pay for rewards programs, are the cause of almost a third of credit card charges, yet they have no relation to the cost of processing transactions. The proposed interchange fee cut is a straightforward way to curb this inefficiency and stop low-cost transactions from subsidizing high-cost ones.

Fee Transparency

The third component of the reform is a measure for greater transparency. The RBA has recommended requiring card networks and major acquirers to publish detailed, aggregate interchange and scheme fee information, broken down by transaction category. This move is intended to provide merchants, particularly small ones, with a simple means of comparing fees and acquiring the best payment terms. By inducing competition among payment firms, the RBA hopes to lower businesses’ fees.

The Battle for the Cost of Payments

The RBA’s suggestion has set the stage for a heated debate among key stakeholders with varying perceptions concerning the probable consequences. The largest banks have been the most vociferous critics of the reform. The “big four” all united to denounce the proposal, claiming it would result in higher annual card fees, lower rewards, and shorter interest-free periods for consumers. Westpac, in its public submission, criticized the RBA for being opaque to the 17 million Australians who hold a card and asserted that the proposal is “arguably the biggest change in the market since [credit cards’] introduction.” They argue that the RBA’s model is flawed and the supposed $1.2 billion in savings won’t materialize for consumers or businesses.

The primary motivator for the banking industry’s opposition is the estimated loss of up to $900 million annually in interchange fees. This would require banks to modify their business models, and they have explicitly indicated that they would recapture this lost income in alternative ways, primarily through consumer-facing fees and reduced rewards. Commonwealth Bank has proposed an alternative model that it believes would “facilitate globally competitive interchange costs” and provide assistance to small businesses in a focused way.

Merchant Dilemma

The business world’s reaction is varied. According to the RBA’s analysis, 90% of businesses would be better off under the new reforms. Such businesses, which already consider card costs in their prices, would benefit from lower interchange fees as well as more transparency. The Council of Small Business Organisations has supported limiting interchange fees, believing that it would save its members money. But the 10-12% of small and large firms that currently surcharge would need more immediate changes. Industry groups representing the hospitality and restaurant sectors claim that a vast majority of their members surcharge and “have no margin to spare,” meaning they would be forced to raise their base prices to recover the lost revenue. This adds to a fundamental economic paradox: the RBA believes competitive pressure will prevent prices from increasing, but for firms already charging a surcharge, a price rise may be the only way to remain profitable.

The Consumer’s Voice

Consumer groups have been steadfast in their support for the RBA’s approach. Choice, an influential consumer group, has strongly endorsed the prohibition, including surcharging on debit cards, which they argue has “outlived [its] useful purpose.” Their position was supported by the fact that over 22,000 members signed a petition in support of it. While advocating for the prohibition of card surcharges, consumer interest groups have also alerted us to the key second-order question of whether costs are shifted to other, non-card payment methods. They fear that, if card payment is rendered “free” for consumers, some companies could seek to deter cash use by charging a surcharge for cash payments and penalizing those excluded from electronic payments, such as the elderly, and others who pay in cash. Choice has urged the government to lead in outlawing cash surcharges to prevent this uneven burden transfer.

Wild West of Digital Wallets and BNPL

A significant shortcoming of the RBA’s new proposal is its limited scope. Reforms do not yet apply to new payment instruments like mobile wallets (e.g., Apple Pay) or Buy-Now-Pay-Later (BNPL) facilities, which the banks assert creates an “uneven playing field” for competition. Banks have warned that by capping fees for traditional credit and debit cards, the RBA scheme risks inadvertently pushing consumers towards these alternative, unregulated, and sometimes higher-cost payment channels for merchants. BNPL products, for example, charge merchants at least twice the fee (3-8% of the transaction value in Australia) than the 1.25-1.5% average applicable to credit cards. The RBA proposals are jeopardizing their own goal of making the system more efficient by driving consumers towards such high-cost platforms as consumers redirect their spending there.

This is a problem that has been noted by the Australian government. The Treasury Laws Amendment (Payments System Modernization) Bill 2025, passed by the House and Senate in September 2025, aims to bring the regulatory perimeter of the Payment Systems (Regulation) Act 1998 into line with BNPL providers, digital wallets, and other non-traditional payment services. This bill provides a critical forward-looking counterpoint to the bank lobby arguments, as it is aimed towards legislation that seeks to fill the current regulatory loopholes and adopt a more comprehensive approach towards payments regulation.

The Final Verdict Looms

The RBA’s proposal to ban card surcharges is a dramatic attempt to correct a structural inefficiency in Australia’s payment system. The irony is that the RBA proposal seeks to correct an inefficiency created by its own previous regulation that first permitted it. In doing so, it also risks introducing new market complexities by stepping into a diversified environment. The final decision by the RBA in December will determine the future of Australian payments.

With the broad support of consumer groups, the government’s election promises, and recent legislative moves to widen payments regulation, it is highly probable that the essential aspects of the reform package will be applied. The implications will be complex and multilateral. Shoppers will have greater price transparency and an end to frustrating checkout surcharges but potentially higher card fees and a loss of rewards ecosystem value. Banks will be denied a large source of income and forced to change their business models. The true test of the reform will be whether the RBA and the government can successfully guide the shift and manage the entire payments ecosystem so that the burden of expenses is not just passed on to other, less transparent areas of the market. The success of the reform relies not just on the surcharge ban but on regulators’ ability to make the entire payments environment competitive, efficient, and fair to all players.