The fight over credit-card fees can sound like a quarrel between banks, schemes and regulators. It is full of terms that make ordinary people’s eyes glaze over: interchange, merchant service fees, commercial cards, acquiring banks, payment rails.
But the practical question is much simpler: when a customer taps a card, who pays for the privilege?
RNZ reported that the Commerce Commission is considering limits on the amount credit-card companies can charge banks for commercial credit-card transactions. Commerce Commissioner Bryan Chapple said commercial cards make up a relatively small share of transactions but a much larger share of the fees paid by businesses. (RNZ)
The hidden cost inside a tap
For consumers, card payments feel frictionless. For merchants, they are not free. Every tap can carry a chain of costs involving the card network, the customer’s bank, the merchant’s bank or payments provider, and the terminal or platform handling the transaction.
Large businesses can negotiate, absorb or spread these costs. Small cafes, clinics, tradies, retailers and service firms have less room. If margins are already thin, card fees become one more pressure sitting beside rent, wages, insurance, ingredients, power and compliance.
That is why this is not only a payments story. It is a small-business cost-of-living story.
Why commercial cards matter
Commercial cards are often used for business expenses: travel, procurement, subscriptions, fuel, equipment, meals and professional services. They can carry rewards, reporting tools and credit features that are useful to the cardholder. But those benefits are not costless. Part of the cost can be pushed onto merchants through higher fees.
The fairness question is whether a small business should effectively help fund premium card features used by another business customer. If the merchant passes the cost on, the surcharge becomes visible. If the merchant absorbs it, the cost hides inside prices or reduces margin.
The surcharge dilemma
New Zealand consumers dislike surcharges. They feel like a surprise tax at the counter. Yet from the merchant’s view, surcharging can be a defensive tool: if payment methods impose different costs, why should every customer pay the same?
The problem is that surcharges can become messy. Some are transparent and cost-reflective. Others look arbitrary. Customers may not know whether 1.5% is reasonable, excessive or simply copied from what the terminal suggests. The result is distrust on both sides of the counter.
A cleaner system would reduce excessive upstream fees and make the remaining costs easier to explain.
What regulation can and cannot fix
Fee caps can help if they target genuine cost imbalances. But they do not abolish the cost of payments. Someone still has to fund fraud protection, network reliability, chargebacks, technology investment and compliance. If regulators squeeze one part of the chain, providers may try to recover revenue elsewhere.
That is why the design matters. A good intervention should reduce the least justifiable costs without undermining reliable payment infrastructure. It should also make pricing legible enough that merchants and customers can understand what they are being charged for.
The bigger lesson
Modern payments are marketed as convenience. But convenience has a distributional politics. The question is not whether cards are useful; they clearly are. The question is whether the benefits and costs are allocated fairly.
If the Commerce Commission’s work leads to lower fees, fewer confusing surcharges and more transparent merchant costs, the impact will be felt quietly: not as a dramatic national reform, but as a few dollars saved across thousands of ordinary transactions. For small businesses, that quiet difference can matter.
