# Bills · Attachments

Upload and attach bill files. Back-office / secondary.

 - [POST /bills/upload](https://developer.boyahq.com/v2/openapi/bills-attachments/billscontroller_uploadbillfile.md)
 - [POST /bills/{billId}/attachments](https://developer.boyahq.com/v2/openapi/bills-attachments/billscontroller_addbillattachment.md)