> For the complete documentation index, see [llms.txt](https://docs.finout.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.finout.io/billing-integrations/custom-cost-sources.md).

# Custom Cost Sources

Custom cost services represent internal or external costs that are not automatically ingested from native integrations.

In Finout, custom cost services allow you to import and allocate these costs alongside your cloud and SaaS spend. This helps you achieve full cost visibility by incorporating business-specific expenses such as internal tooling, shared services, or external vendors.

The following Custom Cost Sources can be integrated with Finout:

* [Custom Cost Centers](/billing-integrations/custom-cost-sources/custom-cost-centers.md)
* [Credentials Vault](/billing-integrations/custom-cost-sources/credentials-vault.md)


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