> For the complete documentation index, see [llms.txt](https://docs.payswap.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payswap.org/products/bills/utility-bills.md).

# Bookkeeping

Bill contracts can be well suited for bookking operations. You can create multiple accounts and update credit & debit operations on them as necessary.

To figure out how to notify your bill contract's accounts of credit and debit operations, please the guide on this page:

{% content-ref url="/pages/ymJcAJOHEj0rIYBRHd2s" %}
[Taxes](/products/bills/taxes.md)
{% endcontent-ref %}