Invoicer is a simple invoice system based on Drupal.
It allows to:
- Create invoices with multiple items.
- Automatic VAT calculation.
- View all invoices filtered by year, quarter, or keywords.
Invoicer is very focus on the needed of freelances, but can be used as kickstart for more complex invoice system.
Just copy the project into the profiles folder of a drupal 8.x and install the invoice profile.
License GPL 3: https://www.gnu.org/licenses/gpl-3.0.en.html