Few pieces of mail provoke more anxiety than an envelope from the IRS marked 'examination.' But an audit is not an accusation, and it's rarely the catastrophe owners imagine. Most audits are routine verifications of specific items, conducted by mail, and resolved with documentation. The owners who fare worst are those who panic, miss deadlines, volunteer too much, or fail to substantiate what they claimed.
Why Returns Get Selected
- The DIF score — returns that deviate statistically from norms for similar taxpayers are flagged
- Document mismatches — income that doesn't match the W-2s, 1099s, and K-1s the IRS receives (usually a CP2000)
- High-scrutiny items — large or unusual deductions, recurring losses, home office, 100% business-use vehicles
- Cash-intensive businesses and a small percentage of random selections
The Three Types of Audit
| Type | Where | Severity |
|---|---|---|
| Correspondence | By mail | Most common, least severe |
| Office | At an IRS office | Broader — representation advisable |
| Field | At your location | Most comprehensive — representation strongly advised |
The First 48 Hours
- Read the notice carefully and note the deadline — it's real, and missing it forfeits options
- Don't panic, and don't ignore it — the issues are usually narrower than they first appear
- Verify the notice is genuine — the IRS initiates audits only by mail, never phone, email, or text
- Gather the return and the records behind the specific items in question
- Consider professional representation for anything beyond a simple mail audit
Do not volunteer
Respond precisely to what is asked — no more. Providing extra years, extra documents, or unprompted explanations can expand the scope of the audit. Answer the question on the table, completely and honestly, and stop there.
Documentation Is the Whole Game
| If the IRS questions… | Provide… |
|---|---|
| Reported income | Bank statements, 1099s, sales records reconciled to the return |
| Business expenses | Receipts, invoices, canceled checks |
| Vehicle deduction | Mileage log, business-use %, total miles |
| Home office | Square footage, exclusive-use evidence |
| Meals & travel | Contemporaneous logs with business purpose |
Outcomes and Your Rights
An audit ends in one of three ways: no change, an agreed adjustment, or a disagreed adjustment. If you disagree, you can request a conference with the examiner's manager, appeal to the independent IRS Office of Appeals, or petition the U.S. Tax Court — and you retain every protection in the Taxpayer Bill of Rights, including the right to representation.
Key takeaway
The outcome is determined far more by preparation and documentation than by the complexity of the return. Read the notice, meet the deadline, document precisely what was asked, volunteer nothing beyond it, and get representation for anything more than a simple mail audit. Handled this way, most audits end as no-change or a manageable adjustment.
SMAART Tax Team
CPAs & Enrolled Agents, SMAART Tax