The online accounting system is more fast and transparent. Moreover each branch's passed voucher entries will be online plate form and it will be easy to track movement of stock, if stock register will be shown online. In India, all most all banks accounting system is online. This is the reason that every customer can take the fund from any ATM machine because all banks accounts are now connecting RBI. Recently, Food Corporation of India has made online accounting system. With this online accounting system, FCI has connected all warehouses.
I am sure your efficiency and decision making power will be increased with online accounting system. Many online system like Google Docs are free to record transaction but some professional online accounting software also get rent for using them. But if we compare the benefits of online accounting with its cost, then it will be very low.