Accounting software

Simple CRM is not an accounting software.

However, by opting for the Simple ERP add-on module (see info on: http://www.simple-crm-online.com/test), you can make quotes, purchase orders and invoices.

You can then export the list of invoices in CSV format, to an accounting software such as Sage, EBP,
Ciel, etc. For more information on export specificities see: http://www.simple-crm.online/search/label/Export