Looking for online system for auto billing for your business, consider CheddarGetter.
CheddarGetter is an online billing manager which provides simple, flexible billing and subscription solutions to a wide range of businesses and startups.
This system provides a full-featured, easy-to-use billing and recurring subscription management system so you can accept and track one-time charges and recurring payments, without focusing on the day-to-day. Simply plug in your merchant account credentials, and CheddarGetter will begin charging your customers immediately.