# Billing Overview

The **Billing** menu manages **invoices for subscribers**: documents that show what a subscriber bought and whether it is paid. Invoices can be printed or sent as PDF.

<p class="callout info">User invoices are documents for your subscribers. They don't move money between balances. Manager balances, deposits and commissions are in the Managers chapter, and manager invoices are in *Reports → Managers Invoices*.</p>

## Where invoices come from

<table id="bkmrk-how-it-is-createdtyp"><thead><tr><th>How it is created</th><th>Type shown</th><th>Paid?</th></tr></thead><tbody><tr><td>Billing → **Issue Invoice** (manual)</td><td>custom</td><td>Unpaid</td></tr><tr><td>Activation with *Manager Balance* and **Issue an invoice for the user** ticked</td><td>acp\_activation</td><td>Paid if *Money Collected* is ON, otherwise unpaid</td></tr><tr><td>Activation or extension paid from the **user's balance**, or by the subscriber in the user portal</td><td>activate</td><td>Paid</td></tr><tr><td>Automatic invoice for **Postpaid** profiles</td><td>purchase/postpaid</td><td>Unpaid</td></tr><tr><td>Withdrawal from a user's balance</td><td>transfer/withdrawal</td><td>Paid</td></tr></tbody></table>

## Pages in this chapter

- [User Invoices](https://help.snono-systems.com/books/sas-radius/page/user-invoices): list, pay, un-pay and download invoices.
- [Issuing an Invoice](https://help.snono-systems.com/books/sas-radius/page/issuing-an-invoice): create an invoice manually.
- [Invoice Designer](https://help.snono-systems.com/books/sas-radius/page/invoice-designer): change the invoice PDF layout and logo.
- [Postpaid Billing and Settings](https://help.snono-systems.com/books/sas-radius/page/postpaid-billing-and-settings): automatic invoices for postpaid users.

## Invoice number

Invoice numbers look like `2026-5-1234`: year, ID of the manager who created the invoice (0 = created automatically), and a running number.