Since I'm not a tax professional at this time, I can tell you that your odds of being audited are somewhat random and usually very low unless your filing is off by a certain percentage in some fields/parameters. Lower income folks are more likely to be audited. The audit "defense" just means you'll get x hours of professional time if you were audited to represent you during an audit. On the whole, the odds of being audited are usually so small it's usually just free money for Intuit.