Sorry but we are not sure if you are interested in internal audits or certification audits. The Auditor training course is very recommendable for both, but also is necessary to have experience in the standard (as minimal as a junior consultant). In the case of internal audit, the pay rate depends of your experience and also depends of the company that you want to audit and her location (there are countries where the pay/rate is lower for any job). In the case of the certification audit the pay rate depends of the certification body, and here also your experience will be very important. So, while more experience you have, it will be more easy to you find jobs as auditor, and your pay rate will be higher.