Payment Processing 101 · By Zach Schleien · July 3, 2026 · Updated September 17, 2026 · 14 minutes

Payment Processing Fees Explained: Where Your Money Goes

Understand the charges behind each sale, compare pricing models, and find savings without overlooking the tools your business needs.

Your processing rate is only part of what you pay to accept a sale. International cards, disputes, financing, and faster payouts can all change the amount that reaches your bank account.

This payment processing fees explained guide separates the underlying card costs from provider charges. The goal is simple: compare the total bill for your actual sales, rather than choosing the lowest advertised percentage.

Who Is Actually Taking Your Money?

A card payment involves the customer's issuing bank, a card network, and the providers that help your business accept and settle payments. Their charges may appear separately or be bundled into your processing rate.

Fee component	Who receives it?	What does it cover?
Interchange	The customer's card-issuing bank	The issuing side of a card transaction
Network assessments	The card network	Use of the payment network
Provider markup	Your processing and acquiring providers	Payment acceptance, settlement, technology, and related services

The acquiring bank serves the merchant side of card acceptance. It is not necessarily the bank where you keep your business checking account.

When requesting a better deal, focus on the provider's markup and service charges. A processor cannot simply negotiate away the card networks' underlying interchange schedules for you.

What Are Interchange Fees, and Can You Negotiate Them?

Interchange is a card-network-set charge paid to the bank that issued the customer's card. It varies with factors such as the card type, transaction method, and merchant category. There is no single interchange rate that applies to every sale.

Pricing arrangement	How interchange appears
Blended pricing	Included within the advertised processing charge
Interchange-plus pricing	Passed through separately from the provider's stated markup

A blended rate does not tell you how much the processor keeps on an individual transaction. Interchange is only part of its underlying cost, so the difference between interchange and your advertised rate is not pure profit.

For a clearer picture, request a statement breakdown and review any hidden payment processing fees alongside the base rate.

Flat Rate vs. Interchange Plus: Which Is Better?

Blended pricing makes costs easier to estimate; interchange-plus makes the provider's markup easier to identify. Neither is automatically cheaper. Your card mix, average sale size, sales channels, and added services determine the better fit.

Model or provider	Verified pricing example	What to check
Blended pricing: Stripe US	2.9% + $0.30 per successful domestic card charge; no monthly fee	International cards, currency conversion, and optional services cost extra
Interchange-plus: Helcim	Online and keyed: interchange + 0.50% + $0.25 under $50K monthly volume; no monthly fee	Underlying interchange varies; lower markup tiers apply at higher volume
Tiered pricing	Check the provider's current pricing	Ask which transactions qualify for each tier and why
Merchant of record: Paddle	5% + $0.50 per checkout transaction; no monthly or migration fees	Includes global sales tax/VAT, fraud, and chargeback handling

A merchant of record is a service and responsibility model, not a separate type of processing rate. Its broader scope can justify a higher checkout charge, but compare the services you actually need.

When reviewing Stripe alternatives, ask each provider to price the same sales mix. A headline rate alone is not a useful comparison.

Which Extra Fees Can Eat Into Your Profit?

The biggest surprises often come from charges outside the base processing rate. These are not necessarily hidden, but they are easy to miss when comparing pricing pages.

Charge	Verified example	Why it matters
International cards and conversion	Stripe and Whop each add 1.5% for international cards and 1% for currency conversion	A domestic rate does not describe your full international cost
Stripe disputes	$15 when received, not refunded; responding adds $15, refunded only if you win	Countering and losing costs $30 in dispute fees
Whop disputes and alerts	$15 per dispute; $29 per early dispute alert	Prevention tools have their own costs
Whop optional services	Orchestration 0.8%; billing 0.5%; tax and remittance 2% when tax is collected; affiliate processing 1.25%	Enabled features change the total bill
Whop financing	15% per financed transaction	Financed sales need a separate margin calculation

Also ask how refunds, account services, and compliance charges work. Do not assume an original processing fee is returned when you refund a buyer, or that every compliance charge is unnecessary.

For recurring businesses, compare the cost of billing and payment recovery when choosing a specialized processor for membership sites.

How Do Account Holds and Payout Delays Affect Your Costs?

A hold is not a processing fee, but unavailable funds can strain your cash flow. Treat payout speed, reserve terms, and expedited transfer charges as part of your processor decision.

Provider	Standard payout timing	Faster payout charge
Stripe US	2 business days; first payout typically 7-14 days	Instant payouts: 1.5%, minimum $0.50
Whop	Can take up to 5 business days	Next-day ACH: $2.50; instant bank deposit: 4% + $1.00
Square US Free plan	Free next-business-day transfers if before 5 PM PT	Instant transfer: 1.95%

Standard payout schedules are not promises that funds under review will be released on that schedule. Keep operating cash separate from unsettled sales and read the provider's reserve terms before a major launch.

Stripe does not publish a fixed reserve length; terms are set per account. Avoid treating anecdotes about another seller's hold as the rule for your business.

How Can You Lower Your Processing Bill Today?

Start with your actual statement, then compare the full cost of a replacement. Divide total payment-related charges by processed sales to estimate your effective cost. Compare similar periods and separate ordinary card sales from financing and expedited payouts.

For creators, coaches, and digital sellers, our primary recommendation is Commas. It combines checkout, funnels, courses, paid communities, webinars, and affiliate programs in one account. Its 10 financing partners support eligible one-time purchases, not subscriptions. Commas told us they will match or beat your current rate.

Option	Pricing to compare	Best reason to consider it
Commas	Free to create an account; processing fees are quote-based and depend on enabled features	Digital-offer tools and buyer financing in one account
Whop	2.7% + $0.30 per domestic card transaction; no monthly fee	Lower-ticket digital products, paid communities, and marketplace reach

Commas does not publish pricing, and every processor's terms allow holds.

Whop is a useful runner-up for lower-ticket digital products and communities. It is merchant of record for card-network rules and payment settlement, but handles tax as merchant of record only when Whop Collects and Remits is enabled. Our Whop vs Stripe comparison explains the differences.

Request a written quote based on your actual sales mix.
Include billing, tax, disputes, financing, and payout charges.
Count tool savings only when the replacement meets your needs.
Confirm migration responsibilities before moving subscriptions.

Verified September 2026. Published rate reference: Stripe pricing. Commas' rate-matching statement was provided directly to Processor Verdict.

Frequently Asked Questions

What are interchange fees?

Interchange fees are set by card networks and paid to the bank that issued the customer's card. They vary by card and transaction characteristics. With interchange-plus pricing, they are passed through separately from the provider's markup.

How much does Whop charge vs. Stripe?

<table><thead><tr><th>Provider</th><th>US domestic card rate</th></tr></thead><tbody><tr><td>Whop</td><td>2.7% + $0.30 per transaction</td></tr><tr><td>Stripe</td><td>2.9% + $0.30 per successful charge</td></tr></tbody></table><p>Neither has a monthly fee for this base pricing. International cards, currency conversion, disputes, and optional services can increase the total cost.</p>

Does a merchant of record handle every tax and compliance obligation?

No. Responsibilities depend on the provider's service and contract. Paddle handles global sales tax/VAT, fraud, and chargebacks. Whop is merchant of record for card-network rules and payment settlement, but its tax role applies only when Whop Collects and Remits is enabled. Your own business obligations still need review.

Does Whop pay for migration costs?

Do not assume Whop will fund migration or cover developer costs. Ask for a written migration plan and any applicable charges before switching. For larger sellers, Commas says its team directly handles migration of courses, members, and subscriptions.

Everything we have published on fees and processing costs

See the full fees and processing costs guide