Ok .... if you file a true and accurate tax return (as you attest to doing when you sign the return) then you should have no fear of an audit. Like if you know you got all the answers correct on a test you should have no fear of the teacher grading the paper ... an audit is the same thing.
In the program, the audit risk evaluator is mostly a marketing ploy to scare you into buying the Audit Protection plan ... which if it lets you sleep better at night to have then by all means pay the extra fee. However, if you are ever audited you can simply buy the same service for a couple of dollars more at that time. So if you pay $50 for protection for 10 years then you spent $500 on a service you never used OR you could wait and buy the service for $100 if you ever need it. As you can see this is a money maker for TT and the audit protection company.