# Where 2.9% + 30¢ came from

URL: https://www.paydude.io/resources/where-2-9-percent-plus-30-cents-came-from
Type: Guide
Published: 2026-09-06 · Updated: 2026-09-06
Summary: Almost every processor charges 2.9% + 30¢. Where the convention came from, why it stopped moving, and what it actually has to cover.

**Almost every online payment processor charges some version of 2.9% + 30¢**, and almost none of them arrived at it by calculation. It is a convention — a reference price that became the thing every other price is compared against.

## Summary

PayPal used the structure for online payments; Stripe launched with it in 2011. Once two major providers advertised it, it became the number everyone is measured against. It has barely moved in over a decade, despite interchange changing repeatedly. It is a reference point, not a cost-derived figure.

## What the number has to cover

A flat rate is a bundle. Out of that 2.9% the processor pays interchange to the customer's bank, an assessment to the card network, and its own costs — fraud, chargebacks, infrastructure, support — before anything is margin.

**Roughly, on a $100 domestic consumer card payment**

| Component | Paid to | Roughly |
| --- | --- | --- |
| Interchange | The issuing bank | $1.50 – $2.10 |
| Network assessment | Visa / Mastercard | $0.13 – $0.15 |
| Everything else | The processor | The remainder |

On a cheap debit transaction the processor keeps most of the fee. On an expensive corporate card it keeps very little, and can lose money outright. Flat-rate pricing is partly an insurance product, and the premium is the averaging.

## Why it stuck

Reference prices are self-reinforcing. Once a buyer has a number in their head, a seller has two options: match it, or spend the sales conversation explaining the difference. Matching is cheaper.

It also makes comparison shopping feel unnecessary. If four providers all quote 2.9% + 30¢, the rate stops being a decision and the choice moves to product, documentation and brand — which suits the incumbents.

> **The number stopped moving while its inputs did not:** The Durbin Amendment capped regulated debit interchange in the US in 2011, and interchange schedules are republished twice a year. The headline flat rate largely did not follow. Where a provider's costs fell, the saving generally stayed with the provider.

## The half nobody negotiates

Attention goes to the percentage. The fixed 30¢ is treated as a rounding error, and for a $200 transaction it nearly is — 0.15%.

At $10 it is 3% on its own, more than the headline rate. For any business selling low-ticket items, the fixed fee is the larger number and the one worth arguing about. We wrote that up separately in [when 30¢ costs more than the percentage](https://www.paydude.io/resources/when-30-cents-costs-more-than-a-percentage).

## What to do with this

1. **Stop treating it as a floor.** It is a convention, not a cost. Providers below it exist and are not doing anything exotic.
2. **Compare on effective rate**, using your real average transaction — the [fee impact calculator](https://www.paydude.io/resources/tools/payment-fee-impact-calculator) shows the curve.
3. **Weight the fixed fee by your ticket size.** Below $10.34 it is literally the larger of the two components, and below roughly $75 it is what decides between two providers.
4. **Check what else is bundled.** Some providers price subscriptions, invoicing or fraud tooling separately on top.

## Sources

- Published pricing pages for Stripe, PayPal, Square and others, September 2026.
- Visa and Mastercard published US interchange rate schedules.
- Durbin Amendment to the Dodd-Frank Act, 2010, effective 2011 — the regulated debit interchange cap.

**Paydude publishes 2.6% + 25¢** Lower on both halves, and it improves automatically with volume. — [See the rate card](https://www.paydude.io/pricing)

## Frequently asked questions

### Why do so many processors charge 2.9% + 30¢?

Because it became the reference price. PayPal used that structure for online payments, Stripe launched in 2011 with the same headline figure, and once two widely-used providers advertised it, every new entrant was compared against it. Pricing at the reference point is easier to sell than explaining why you differ.

### Is 2.9% + 30¢ based on actual costs?

Only loosely. It has to cover interchange, network assessments, fraud, chargebacks and margin, and interchange alone is typically 1.5–2.1% on a domestic consumer card. But the exact figure is a round, memorable number rather than a calculated one — and it has stayed put while underlying costs moved.

### Has the standard rate ever changed?

The headline has been remarkably stable for well over a decade, even though regulated debit interchange was capped in the US in 2011 and interchange schedules are revised twice a year. Providers have generally competed on product rather than by moving the reference number.

### Is 2.9% + 30¢ a good rate?

It is the default, which is not the same thing. Whether it is good depends entirely on your average transaction size — at a $10 ticket it works out at 5.9%, and at $250 it is 3.02%. Compare on effective rate rather than on the headline.