# How to setup an invoice scheme?

To configure go to `Settings -> Invoice settings`

* Click on Add and select a scheme format.\
  The format can be **XXXX** or **\<year>-XXXX**
* You can also provide a custom prefix, invoice start number, and number of digits in the invoice number.
* The preview box will display the preview according to the chosen option.
* You will need to set a default invoice scheme for a business to use it.