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Pricing Model Comparison

Square's flat-rate pricing, explained honestly.

Square uses flat-rate pricing: one advertised percentage no matter what card is used. It's simple — but simplicity has a cost. Here's how the model works and how to compare it against interchange-plus for your actual volume.

Flat-rate pricing

How it works

Square, like other flat-rate processors, charges one advertised percentage per transaction (plus often a small per-transaction fee), regardless of which specific card the customer uses. A rewards credit card and a basic debit card cost you the same. That's the entire appeal: no statement full of confusing categories, one number to remember.

The tradeoff is in what that flat number has to cover. Card networks charge processors different amounts depending on the card — a premium rewards card can cost a processor meaningfully more to accept than a basic debit card. A flat-rate processor prices their single rate to cover the expensive cards too, which means on your debit-heavy and basic-card transactions, you're paying more than the actual cost of acceptance — the difference is the processor's margin, built into a number that looks refreshingly simple.

When it makes sense

Flat-rate pricing genuinely makes sense for very low-volume or seasonal businesses that value not thinking about it, or businesses just starting out with no processing history. The simplicity has real value at small scale.

When it typically costs more

Once volume grows, or if a meaningful share of transactions are debit or basic credit cards, interchange-plus pricing — where you pay the actual card network cost plus a fixed, disclosed markup — typically comes out ahead, because you're not subsidizing the expensive-card average on every transaction.

Common questions

Is Square more expensive than interchange-plus pricing?
It depends on your card mix and volume. Flat-rate pricing bakes in a premium to cover the full range of card costs, so businesses with a lot of debit or basic-card volume often pay more than they would on interchange-plus. Businesses with unusually high premium-rewards-card volume sometimes see the opposite. Running your actual numbers is the only way to know for your business.
What is interchange-plus pricing?
A pricing model where you're charged the actual card network cost (interchange, which varies by card type) plus a fixed, transparent markup. It's more visible on your statement than flat-rate, and for most businesses at real volume it costs less.
How do I compare my current Square costs to interchange-plus?
Use our free calculator: enter your monthly volume and current total fees, and it estimates what interchange-plus pricing would cost for a business like yours — anonymously, no statement needed.

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This page describes publicly known pricing structures and models for general informational and comparison purposes. It does not state any competitor's current specific pricing, which varies and changes over time. Confirm current pricing directly with any provider before making a decision.