---
title: Understand
image: https://developers.cloudflare.com/core-services-preview.png
---

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# Understand

* [ How Cloudflare billing works ](https://developers.cloudflare.com/billing/understand/how-billing-works/)
* [ How charges accrue ](https://developers.cloudflare.com/billing/understand/how-charges-accrue/)
* [ Preview services ](https://developers.cloudflare.com/billing/understand/preview-services/)
* [ Billing policy ](https://developers.cloudflare.com/billing/understand/billing-policy/)
* [ Usage-based billing ](https://developers.cloudflare.com/billing/understand/usage-based-billing/)
* [ Sales tax ](https://developers.cloudflare.com/billing/understand/sales-tax/)

```json
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/billing/","name":"Billing"}},{"@type":"ListItem","position":3,"item":{"@id":"/billing/understand/","name":"Understand"}}]}
```