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, all-in monthly cost.

The 30-second version

• Ignore the headline rate first. Work out your effective rate — total fees divided by total card sales — from a recent statement.
• Compare providers on total monthly cost 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 no longer surcharge cards, 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 the total fees you paid. Divide total 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 what you'd save from a few simple inputs. It's self-serve and needs no sign-up.

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 every option by total monthly cost at your volume and highlights the best value on 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, Tyro, ANZ Worldline) passes 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 RBA bans 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 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, our team can audit and negotiate on your behalf. Whichever route you take, the principle holds: choose on total cost 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.