---
agentTools:
  projectIndex: https://developer.bill.com/llms.txt
---

# General ledger classification improvements in bills and invoices

We have added the capability for adding a chart of accounts to your bill and invoices.

* **Bills**: When you create or update a bill, you can now set the `payFromChartOfAccountId` field as the BILL-generated ID of the chart of accounts for the bill payment.
* **Invoices**: When you create or update an invoice, you can now set the `payToChartOfAccountId` field as the BILL-generated ID of the chart of accounts for the invoice payment.