The three types of IRS audits
There are three kinds of audits, and knowing which one you have tells you how serious it is. A correspondence audit is handled entirely by mail. It is the most common and the narrowest. The IRS wants proof of one or two items, you mail copies of your documents, and often that is the end of it.
An office audit means you are asked to bring records to a local IRS office and meet with an examiner. It is a step up in scope, but still usually focused on particular line items.
A field audit is the most serious. An IRS agent comes to your home, your business, or your representative's office and reviews things in person. Field audits tend to be broader and involve larger dollar amounts. If you have one of these, get help before you say a word.
The golden rules of surviving an audit
Don't panic. An audit is a process, not a verdict. Panic makes people talk too much and hand over things nobody asked for.
Answer only the question that was asked. This is the single most important habit in any audit. Every extra answer you volunteer can open a brand-new door the examiner did not even know was there. The less you say, the tighter the audit stays. Say less.
Stay organized and be truthful. Bring exactly what was requested, neatly labeled, and nothing else. Never lie to the IRS, and never guess out loud. If you do not know an answer, the correct response is that you will get back to them. Keep the scope of the audit as narrow as it started.
You have the right to representation
Here is something a lot of people do not realize: you generally do not have to sit across the table from the IRS yourself. You have the right to be represented by an attorney, CPA, or enrolled agent, and that person can attend the audit in your place.
That matters for more than comfort. A representative knows what the examiner is really after, keeps the conversation on the documents, and stops you from volunteering the offhand comment that turns a small audit into a big one. When your emotions are not in the room, the audit tends to stay smaller and calmer.
If you disagree, the auditor is not the final word
Audits do not always end the way you want, and that is not the end of the road. The examiner who ran your audit is not the last word. If you disagree with the proposed changes, you have the right to take your case to IRS Appeals, an independent office whose whole job is to look at disputes with fresh eyes.
This is why documentation wins audits. Good records let you push back with proof instead of argument. The taxpayers who keep clean, organized paper almost always fare better than the ones relying on memory and good intentions.