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LEAH WALCZUK
@ HIGH WIRE PAYMENTS

Flat Rate Pricing

Flat Rate Pricing

Keep payment pricing simple.

Flat rate pricing gives merchants one easy rate to understand. It is simple, predictable, and easy to explain. You do not need to review every card type, card brand cost, or transaction category.

The tradeoff is that flat rate pricing can cost more on lower cost cards. It is built for simplicity first, not always the lowest possible cost.

Simple pricing
%

One rate. Less math.

Flat rate pricing is made for merchants who want easy billing and a simple payment structure.

Best fit Easy forecasting
Tradeoff Can cost more

Why merchants choose flat rate.

Flat rate pricing is not always the lowest cost option, but it can be the easiest option to understand.

Simple structure
1

One rate is easier.

Flat rate pricing gives you a simple structure. You do not have to think through debit, credit, retail, online, or keyed rates every month.

  • Easy to explain
  • Easy to forecast
  • Easy to review
Predictable billing
$

Less statement stress.

A flat rate can make the monthly statement feel less complicated because every card is priced under the same simple structure.

  • Clearer monthly planning
  • Simple cost estimate
  • Less pricing detail to review
Important tradeoff
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Simple can cost more.

Some cards cost very little to accept. With flat rate pricing, those lower cost cards may still be charged the same higher flat rate.

  • Debit may cost more than needed
  • Lower cost retail cards may not benefit
  • Interchange plus may be more cost effective

Choose flat rate when simple is the goal.

Flat rate pricing works best when you value simplicity over detailed cost savings. It makes billing easier to follow because you are not looking at the true cost of each individual card type.

But that simplicity has a tradeoff. When a card has a very low actual cost, a flat rate can be much higher than cost based pricing.

1

Flat rate is simple.

You get one easy structure instead of different pricing for every card type.

2

Interchange is hidden.

The true card cost is not separated from the rest of the rate.

3

Low cost cards can cost more.

A low cost debit card can still be charged the full flat rate.

The flat rate tradeoff.

Same type of sale. Same Visa debit card. Two different pricing structures.

Interchange plus example
IC
More cost effective

The low cost card stays low.

The Visa debit card has a very low cost. Interchange plus adds the markup clearly on top.

Visa debit card cost 0.05%
Interchange plus markup 0.50%
Total rate paid 0.55%
Total fee rate 0.55%
$0.55 fee On a $100 Visa debit sale, this example would cost about 55 cents.
This is why interchange plus can be extremely cost effective on lower cost cards.
Flat rate example
%
Higher cost example

The same card costs much more.

Here, the same low cost Visa debit card is charged a flat rate instead of following the actual card cost.

Visa debit card cost 0.05%
Flat rate difference 4.95%
Total rate paid 5.00%
Total fee rate 5.00%
$5.00 fee On a $100 Visa debit sale, this example would cost about 5 dollars.
Same card. Same sale. Higher fee because the pricing is flat.
Simple takeaway: flat rate pricing is easier to understand, but interchange plus can save much more when the card cost is low.
Example only: This is a simplified visual example. Actual rates depend on card type, card brand, transaction method, business type, risk profile, and approval.
Important note: Interchange is the base card cost. It is tied to card brands like Visa, Mastercard, Discover, and Amex. Flat rate pricing keeps things simple by using one rate, but it does not always reflect the true cost of each card.

When flat rate makes sense.

Flat rate pricing is a good fit when you want simple billing, easy forecasting, and less detail to review.

Best fit for flat rate.

Use flat rate pricing when simplicity matters more than seeing the true cost of each card type.

Merchant goal Why flat rate fits What to consider
Simple pricing You want one easy rate instead of several card cost categories. Interchange plus may be more cost effective.
Easy forecasting A flat rate makes it easier to estimate fees each month. Lower cost cards may still be charged the full flat rate.
Less statement detail You do not want to review debit, credit, retail, online, and keyed costs separately. Less detail can also mean less visibility.
Newer business Simple pricing can be easier when you are just getting started. As volume grows, it may be worth comparing interchange plus.

Flat rate questions.

These are the main things merchants ask before choosing flat rate pricing.

What is flat rate pricing?

Flat rate pricing means you pay one simple rate instead of pricing each card based on its true underlying cost.

Why do merchants choose flat rate?

Merchants choose flat rate because it is simple. It is easy to understand, easy to explain, and easy to forecast.

Why can flat rate cost more?

Some cards have a very low base cost. With flat rate pricing, those low cost cards may still be charged the same higher flat rate.

Is flat rate better than interchange plus?

Flat rate is simpler. Interchange plus is usually more cost effective when you want pricing that follows the true cost of the card.

Can I switch later?

In many cases, yes. As your volume grows, it can make sense to compare flat rate against interchange plus.

Want simple pricing without guessing?

I can help you compare flat rate pricing against interchange plus, zero fee processing, cash discount, and surcharge options so you can choose the structure that fits your business.

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