Choosing a POS system: software fees vs payment processing
Compayr Research · July 2026 · 7 min
A point-of-sale system is really two purchases wearing one badge: the software that runs your counter, and the payments engine that takes the money. Confusing the two is how merchants end up paying a premium processing rate to get a feature they could have had for a flat monthly fee. This guide keeps the two bills separate so you can compare the real cost.
The 30-second version
- A POS bill has two parts: a software subscription (per month, per register) and a payment processing rate on every sale.
- Bundled POS (software + payments from one vendor) is convenient but can lock your processing rate.
- Bring-your-own-payments POS lets you shop the processing rate separately — often cheaper, sometimes fiddlier.
- Industry fit matters: hospitality and retail need very different features.
- Model the total monthly cost — software plus processing at your volume — before you commit.
Two bills, not one
The software fee buys the register app, inventory, staff logins, reporting and integrations. It's usually a fixed monthly subscription and scales with the number of registers or add-on modules.
The processing fee is a percentage of every card sale and is where the big money is over a year. A $30/month software saving is nice; a 0.3% processing difference on $40,000 a month is $120 — every month. Always weigh them together. Our POS comparison shows software fees and processing rates side by side so neither hides the other.
Bundled vs bring-your-own
Bundled systems (payments built in) are the fastest to set up and the easiest to support — one vendor, one login, one bill. The trade-off is that your processing rate is often fixed by the bundle, so you can't shop it.
Bring-your-own-payments systems let you pair best-in-class software with a separately negotiated processing rate. That can save real money at volume, but you own the integration and support hand-offs.
Neither is automatically cheaper. The deciding factor is your turnover: the higher your card volume, the more a competitive processing rate outweighs the convenience of a bundle.
Industry fit
| Business type | Features that matter most |
|---|---|
| Cafe / hospitality | Fast order flow, table maps, tipping, kitchen printing |
| Retail | Inventory depth, barcode, purchase orders, variants |
| Services / appointments | Bookings, deposits, recurring invoices |
| Multi-site | Central reporting, per-store permissions, stock transfers |
Buying a hospitality-first POS for a clothing store (or vice versa) is a common and costly mismatch. Shortlist on the features you'll use daily, then compare cost.
What the reforms mean for POS buyers
From 1 October 2026 you can't surcharge card payments, so the processing rate baked into your POS becomes a straight cost. If your system bundles payments at a premium rate, that premium is now yours to absorb. It's a good moment to check whether your POS lets you shop the processing side — and to compare against standalone terminals if payments are your biggest line.
What to ask before you sign
- What's the monthly software fee, per register, and which features are add-ons?
- Is payment processing bundled, and can I use my own provider?
- What's the processing rate, all-in, at my volume?
- What hardware is required, and do I own or lease it?
- Is there a contract term, and what's the exit cost?
You can run your own numbers in the Compayr calculator, browse the full provider comparison, or see our head-to-head matchups.
References
- [1] Reserve Bank of Australia, "Review of Merchant Card Payment Costs and Surcharging — Conclusions Paper", 31 March 2026. https://www.rba.gov.au/
- [2] Australian Taxation Office, "GST — when you can claim a GST credit". https://www.ato.gov.au/
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