General information only

The content on Billing Model is for general educational purposes. It explains how pricing, billing, payments and revenue reporting commonly work. It is not written for your specific business, contract or jurisdiction.

Nothing on this site is accounting, tax, legal or financial advice, and reading it does not create a professional relationship of any kind. Accounting treatment, tax obligations, late-fee limits and contract terms depend on your facts and on the law where you operate. Talk to a qualified accountant, tax adviser or lawyer before you act on anything you read here.

Fees, rules and products change

Processing fees, card-network rules, platform features and accounting guidance change over time. We link to the official source and show when we last checked it, but a figure on this site may be out of date by the time you read it. Always confirm current fees and terms with the provider.

Examples and templates

Worked examples use simplified numbers to show how a calculation works. Sample letters, invoice wording and templates are starting points to adapt; have important documents reviewed before you send them.

Trademarks and independence

Product and company names mentioned on this site, including payment processors, card networks and software products, are the trademarks of their owners. Billing Model is not affiliated with, endorsed by or sponsored by any of them. We use their names only to identify the products and rules we are describing.

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We link to other websites we believe are helpful, but we have no control over their content and are not responsible for it.

Errors and corrections

If you find something inaccurate or out of date, please let us know. We review every correction and update our articles.