> For the complete documentation index, see [llms.txt](https://gitbook.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook.com/docs/help-center/account-management/pricing-plans-and-billing.md).

# Pricing, plans and billing

- [Do I have to pay to publish a site?](https://gitbook.com/docs/help-center/account-management/pricing-plans-and-billing/do-i-have-to-pay-to-publish-a-site.md)
- [Which payment methods do you accept?](https://gitbook.com/docs/help-center/account-management/pricing-plans-and-billing/what-payment-methods-do-you-accept.md)
- [Where can I find my invoices, and update billing details?](https://gitbook.com/docs/help-center/account-management/pricing-plans-and-billing/where-can-i-find-my-invoices-and-update-billing-details.md)
- [I was charged for an unexpected upgrade](https://gitbook.com/docs/help-center/account-management/pricing-plans-and-billing/i-was-charged-for-an-unexpected-upgrade.md)
- [I have paid for the yearly plan. Why did I receive another invoice?](https://gitbook.com/docs/help-center/account-management/pricing-plans-and-billing/i-have-paid-for-the-yearly-plan.-why-did-i-receive-another-invoice.md)
- [Why don’t I get billed for the Advanced AI Assistant or Translation add-ons flat fees immediately?](https://gitbook.com/docs/help-center/account-management/pricing-plans-and-billing/why-dont-i-get-billed-for-the-advanced-ai-assistant-or-translation-add-ons-flat-fees-immediately.md)
- [Do you offer a free plan for non-profits and open-source organizations?](https://gitbook.com/docs/help-center/account-management/pricing-plans-and-billing/does-gitbook-offer-a-free-plan-for-non-profit-open-source-organizations.md)
- [Do you offer any discounts?](https://gitbook.com/docs/help-center/account-management/pricing-plans-and-billing/do-you-offer-any-discounts.md)
- [Can I get a refund?](https://gitbook.com/docs/help-center/account-management/pricing-plans-and-billing/can-i-get-a-refund.md)


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