How to choose a card payment provider in Australia (2026 buyer's guide)

Picking a card payment provider on the advertised rate is the single most expensive mistake a merchant can make. Two providers quoting "1.5%" can leave hundreds of dollars a month between them once monthly fees, hardware, chargebacks and settlement timing are counted. This guide walks through the way we think a provider should be chosen — by your real monthly cost of card acceptance, not the advertised rate.

Compayr's data shows why the rate is worth checking. As at October 2026, published in-person flat rates from the providers Compayr compares run from 0.79% to 1.60% including GST. On $50,000 a month in card sales, that gap is $4,860 a year on card processing alone.

Since the surcharge ban on 1 October 2026, card fees come straight out of your margin. If your first statement since the ban looks higher, read why your card fees are higher, see how to pay less for card payments and check which providers passed on the interchange cut.

The 30-second version

• Ignore the headline rate first. Work out your effective rate — your card fees divided by your card sales — from a recent statement.
• Compare providers on card processing costs at your volume, not the percentage on the ad.
• Five things move your bill: the rate, any fixed monthly fee, hardware, chargeback fees and how fast you're settled.
• From 1 October 2026 you can't surcharge eftpos, Mastercard or Visa payments, so the cost of acceptance sits with you — cheaper acceptance now matters more than ever.
• When two options are close, let contract flexibility and reviews break the tie.

Start with your real numbers

Before you look at a single provider, pull your most recent merchant statement and find three figures: your monthly card turnover, your average transaction value, and all the fees you paid. Divide the fees by turnover and you have your effective rate — the honest number to beat.

If you don't have a statement handy, our free calculator estimates your effective rate and how it compares to the providers we compare. It's self-service.

The five costs that actually matter

A provider can win on rate and still cost you more. Here's what to line up side by side:

Our provider comparison ranks options by card processing costs at your volume and highlights each of these rows, so you can see the trade-offs at a glance.

Flat-rate or interchange-linked?

Flat-rate pricing (think Square or Zeller) charges one simple percentage on every card. It's predictable and easy to reconcile, which suits smaller or newer businesses.

Interchange-linked pricing (the major banks) pass through the wholesale cost plus a margin. It can be cheaper at higher volumes or with a debit-heavy card mix — but it's harder to read on a statement.

Neither is "better" in the abstract. The right answer depends on your turnover and card mix, which is exactly why we rank on the dollar outcome rather than the label.

What the October 2026 reforms change

From 1 October 2026 the schemes ban surcharging on eftpos, Mastercard and Visa. If you currently add a surcharge, that revenue disappears and the fee becomes a cost you absorb. The RBA also cut the consumer credit interchange cap, which lowers the wholesale cost your provider pays — but only interchange-linked pricing passes that saving through automatically. If you're on a flat rate, you may need to switch or renegotiate to feel it. Use our surcharge calculator to see your number before your first October statement lands.

What to ask before you sign

• Is the quoted rate the all-in effective rate, including Amex and international cards?
• Is there a fixed monthly fee or terminal rental, and is it waived at any volume?
• Do I own the hardware or lease it, and what's the exit cost?
• What's the chargeback fee, and who handles disputes?
• When am I settled, and does same-day require a specific bank account?
• Is there a lock-in contract, and what happens if I leave early?

How to make the final call

Shortlist two or three options, then put them head to head. Our comparison matchups show the cheaper option and a plain-English verdict for popular pairings. If you'd rather not do it yourself, you can upload your statement for a detailed cost analysis and we'll send you a report comparing your real costs against the providers we compare. Whichever route you take, the principle holds: choose on card processing costs and terms, not the number on the poster.

You can run your own numbers in the Compayr calculator, browse the full provider comparison, or see our head-to-head matchups.