Most IRS audits are conducted through the mail and are relatively routine. The IRS sends a letter requesting additional documentation to support a deduction or other tax break you’ve taken. If you mail back sufficient evidence, your case will be closed with no taxes owed. Otherwise, the IRS will mail you a bill.However, if the IRS wants to meet with you, the stakes get much higher. In fiscal year 2020, the average amount of additional taxes recommended in face-to-face audits was nearly 10 times larger than the average for a correspondence audit: $72,210 versus $7,658, according to IRS statistics.Even tax pros hire someone to represent them in face-to-face audits, says Leonard Wright, a San Diego certified public accountant and financial planner. Wright has plenty of experience: He was chief financial officer of a company that was audited, and his personal tax returns have been audited four times. In each case, he hired another CPA to represent him.It’s all too easy to say something you shouldn’t when you’re under scrutiny, Wright says. You could volunteer information that might not be helpful to your case, or get defensive or confrontational.“You don’t want it to become personal, and you don’t want to ruffle the feathers of the auditor,” Wright says.If you used a tax preparer, you may assume that person can represent you in an audit, but that’s not always the case. Typically CPAs, attorneys and enrolled agents can represent clients in IRS audits, but other tax pros usually can’t. Your tax preparer may be able to refer you to someone who can represent you, or you can get referrals from friends, family or financial advisors.