> For the complete documentation index, see [llms.txt](https://teos-docs.coreledger.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://teos-docs.coreledger.net/guides/invoices.md).

# Invoices

TEOS API consumers can create an invoice to get a digital record for agreed obligation of payment and pay invoice to fulfil this obligation. Invoice is a time-stamped digital record for a payment agreement made between two parties.\
An invoice defines the obligation of a sender to transfer a specified amount of an asset (in sparks) to a target address before the due date.\
Once created, the invoice remains in the Open status until it is either paid, expired, canceled, or fails.

📘 [Learn more](/resources/using-the-teos-api/concepts/invoice.md) about invoices.


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