aXaccounting Mod is a vtiger CRM extension, wich will allow you to add accounting functionallity to your vtiger CRM installation With aXaccounting Mod, you will be able to register all incomes and expenses.

Polish invoice for Vtiger 5.0.4

The module create a list of financial transactions and their status. This module also integrate "Cutomer Portal" with "Przelewy24.pl and Paypal.com."
The list of supported payment methods:
http://www.przelewy24.pl/cms,111,bank_trasfers_credit_cards_cash.html
https://www.paypal.com/

Supported Languages: Polish, English

Video tutorial: http://youtube.com/watch?v=YGeJjxVxWZM
Website: http://vtiger.com.pl/shop/item/oss-payments.html

With it you can collect all work done during the working day with the aim to bill this work. Therefore you can add billing units. Whenever you want you can do batch invoices for all not billed units.