# Bill

- [What is a Bill?](/xoroerp-1/purchase/bill/what-is-a-bill.md)
- [Bill Options](/xoroerp-1/purchase/bill/what-is-a-bill/bill-options.md)
- [Bill Centre](/xoroerp-1/purchase/bill/bill-centre.md)
- [Bill Centre Fields](/xoroerp-1/purchase/bill/bill-centre/bill-centre-fields.md)