---
title: Understand
description: Understand how Cloudflare billing works.
image: https://developers.cloudflare.com/core-services-preview.png
---

> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/billing/llms.txt  
> Use this file to discover all available pages before exploring further.

[Skip to content](#%5Ftop) 

# Understand

Use these pages to understand how Cloudflare calculates charges, creates invoices, and applies billing policies.

[How Cloudflare billing works](https://developers.cloudflare.com/billing/understand/how-billing-works/) 

Review the billing lifecycle, charge types, invoices, billing cycles, upgrades, and downgrades.

[How charges accrue](https://developers.cloudflare.com/billing/understand/how-charges-accrue/) 

Follow a request through Cloudflare and identify which products generate usage-based charges.

[Billing policy](https://developers.cloudflare.com/billing/understand/billing-policy/) 

Review refund policy, payment methods, renewal terms, and Enterprise billing rules.

[Usage-based billing](https://developers.cloudflare.com/billing/understand/usage-based-billing/) 

Identify products that bill based on metered consumption.

[Sales tax](https://developers.cloudflare.com/billing/understand/sales-tax/) 

Understand how Cloudflare calculates sales tax from your billing address.

[Billing permissions](https://developers.cloudflare.com/billing/understand/billing-permissions/) 

Confirm which roles can view invoices, pay balances, and manage subscriptions.

[Preview services](https://developers.cloudflare.com/billing/understand/preview-services/) 

Try contracted products and features before purchasing them.

[Billing FAQ](https://developers.cloudflare.com/billing/understand/faq/) 

Find quick answers to common billing questions.

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