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What Happens During IRS Audits: A Business Owner's Guide
Last Updated: October 21, 2026
What Happens During IRS Audits: The Process Step by Step
An IRS audit is a review of your return and records to confirm what you reported is accurate.
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4. You respond by the deadline. Miss it, and the IRS may decide without your input.
5. The auditor reviews and proposes findings. You get a no-change determination or a proposed adjustment.
6. You agree or disagree. Agree, and you sign.
Pro Tip A common mistake is sending a whole box of records when the IRS asked for three items. Extra paperwork invites extra questions. Answer the request, and nothing more.
Your IRS Audit Documentation Checklist
An IRS audit documentation checklist keeps you organized and shows the auditor you're prepared.
For income questions: bank statements, 1099 forms, payment processor reports, sales records and invoices.
For deductions and business expenses: receipts, proof of payment, mileage logs and vehicle records.
Missing records happen.
Watch Out If you ignore an IDR because you're missing records, the auditor may disallow the whole deduction. Send what you have with a short note. Silence costs more than an honest gap.
How Long Does an IRS Audit Take?
Most IRS audits take a few months, depending on type and complexity. A simple correspondence audit may wrap up in weeks; a field audit with several issues can stretch longer. Fast, complete responses shorten the process.
What Happens After an IRS Audit
After an IRS audit, you receive one of two outcomes: a no-change determination or a proposed adjustment.
Agree and you sign and arrange payment.
When records are thin or the stakes are high, many business owners bring in a tax professional for representation. Whether you file as a sole proprietor, an S-Corp, or a partnership, having someone who knows your return inside and out makes a real difference, and our small business taxes and S-Corp taxes work is built around exactly that kind of year-round support.
That's where McCrary Tax Prep comes in. Our audit packages give every tax filer the reassurance of someone walking through the audit with them if one comes.
An IRS notice in the mailbox is stressful, but you don't have to face it alone. McCrary Tax Prep offers audit packages built for business owners, with year-round tax support, personalized strategy, and a team that stays with you through every step. Book now and get the reassurance of having someone in your corner if an audit comes.
Book now
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