What the IRS Looks for During an In-Person Tax Examination

Introduction

An IRS in-person tax examination—often called a field audit—is a focused, document-heavy review conducted at a taxpayer’s home, business, or the office of a tax representative. In my practice working with small businesses and self-employed clients for over 15 years, I’ve observed that the outcome almost always hinges on documentation, clear explanations, and cooperation. Preparing proactively turns a stressful visit into a manageable meeting.

(For official IRS guidance on audits and taxpayer rights, see the IRS audit overview and the Taxpayer Bill of Rights: https://www.irs.gov/individuals/life-events/tax-audit and https://www.irs.gov/taxpayer-rights.)

Why the IRS still does in-person examinations

The IRS uses several audit channels—correspondence (mail), office audits, and field (in-person) audits. Field audits are less common than correspondence audits, but they are used when agents need to inspect original records, verify business operations, or evaluate complicated transactions. The IRS’s selective use of field audits focuses resources where documentation must be examined in context (e.g., inventory, depreciation schedules, or payroll practices).

How an in-person examination is initiated and scoped

  • Notice: The IRS sends a formal notice explaining the scope, the tax years under review, and the requested records. Always confirm the notice’s legitimacy (call the IRS number on the notice) and never invite an agent who shows up without proper authorization.
  • Scope: The notice will usually identify specific items (Schedule C gross receipts, EITC eligibility, business expenses, etc.). Agents generally will not expand scope arbitrarily without written notice.
  • Location: Field audits are often at the taxpayer’s place of business, a tax preparer’s office, or occasionally the taxpayer’s home. The agent should present credentials and a contact card.

What IRS agents focus on during an in-person exam

Below are the primary focus areas agents typically inspect. Each bullet includes what the IRS looks for and practical preparation steps.

  1. Income verification
  • What the IRS checks: Matching reported income to third-party forms (W-2s, 1099s, bank reports, and information returns). They also compare bank deposits, merchant account statements, and gross receipts.
  • Preparation: Reconcile all 1099s and W-2s to your books. Prepare an income reconciliation schedule that ties deposits and sales to your reported gross receipts.
  1. Business expenses and deductions (Schedule C, rental, partnerships)
  • What the IRS checks: Business purpose, ordinary and necessary standard, and substantiation (receipts, invoices, mileage logs). Agents evaluate whether expenses are personal or business-related and whether amounts are reasonable.
  • Preparation: Organize receipts chronologically or by category, prepare a brief narrative for large or unusual expenses, and keep contemporaneous mileage logs. See our guide on building an audit-ready file for details.
  • Internal link: Building an audit-ready file: What Documents to Keep and For How Long (https://finhelp.io/glossary/building-an-audit-ready-file-what-documents-to-keep-and-for-how-long/).
  1. Credits that require strict eligibility (EITC, education, dependent care)
  • What the IRS checks: Residency, relationship, income limits, and qualifying tests for credits such as the Earned Income Tax Credit and child tax credit.
  • Preparation: Gather documents proving residency, child support, school records, or custody agreements that support credit claims. Be ready to explain any shared custody or split-year scenarios.
  1. Cost basis, depreciation, and capital transactions
  • What the IRS checks: Basis documentation for asset sales, depreciation schedules, and proof of improvements vs. repairs for property.
  • Preparation: Provide closing statements, bills of sale, and capital improvement invoices alongside depreciation schedules.
  1. Cash-intensive businesses and unexplained deposits
  • What the IRS checks: Cash businesses are closely scrutinized because of underreporting risk. Agents compare bank deposits to reported income and may use bank deposit analysis.
  • Preparation: Prepare a daily or monthly sales summary and link large cash deposits to invoices or sales records.
  1. Employee vs. independent contractor classification
  • What the IRS checks: Degree of control, financial relationship, and behavioral aspects. Misclassifying workers triggers payroll tax adjustments and penalties.
  • Preparation: Keep written contracts, documentation of how workers are managed, and proof of how payments were calculated.
  1. Related-party transactions and disguised distributions
  • What the IRS checks: Transfers between family members, shareholder loans, and transactions with related entities to ensure they are at arm’s length.
  • Preparation: Provide loan documents, board minutes, and proof of repayment or lack thereof.
  1. Consistency with prior years and industry norms
  • What the IRS checks: Significant year-over-year changes or figures far outside typical industry ranges may trigger deeper review.
  • Preparation: Prepare an explanation for material fluctuations and attach supporting ledgers or contracts.

Typical documents to have ready (audit checklist)

  • Federal and state tax returns under audit
  • All W-2s, 1099s, K-1s for the years in question
  • Bank statements and merchant account reports
  • General ledger or accounting summaries tying deposits to revenue lines
  • Receipts, invoices, canceled checks for deductible expenses
  • Mileage logs and vehicle use records
  • Contracts, leases, closing statements, and bills of sale
  • Payroll registers and Forms 941/940 if applicable
  • Proof of identity and business formation documents

(Also see our checklist: Preparing a Concise Audit Response Packet: Checklist of Documents.)

Internal link: Preparing a Concise Audit Response Packet: Checklist of Documents (https://finhelp.io/glossary/preparing-a-concise-audit-response-packet-checklist-of-documents/).

What happens during the agent’s visit

  • Identification and scope confirmation: The agent will show credentials and explain which years and issues are under review.
  • Document review and limited interview: Agents will review your records and may interview you or staff to clarify entries. Keep answers factual, concise, and based on records.
  • No removal of original records without consent: Agents generally do not remove original documents without a document receipt. If the agent seeks to copy or remove materials, request a written inventory.
  • Duration: A simple field audit can take a few hours; complex business cases may require multiple visits or a longer onsite review.

How to interact with the agent

  • Be cooperative but prudent: Provide requested documents and avoid volunteering extraneous information that’s not directly asked for.
  • Use a representative: You can have an enrolled agent, CPA, or attorney present. If you don’t already have representation, consider at least consulting one before the meeting.
  • Recordkeeping during interviews: Take notes or ask the agent to confirm findings in writing before leaving.

Common outcomes and next steps

  • No change: The agent closes the audit with no adjustments.
  • Agreed changes: You sign an agreement (Form 4549 for individuals) and pay any tax, interest, and penalties.
  • Proposed changes: You receive a report with proposed adjustments and will have appeal rights.

If you disagree with the outcome, you can request an independent Appeals Office review. See IRS audit appeals procedures for details (https://www.irs.gov/appeals).

Practical strategies to improve your position

  • Prepare an organized audit packet: A short cover letter, a reconciliation worksheet, and the requested documents in order speeds the agent’s review and creates a professional impression.
  • Build a one-page narrative for large items: For significant deductions or unusual transactions, include a one-page explanation with dates and supporting document references.
  • Correct errors proactively: If you identify an error before the agent raises it, disclose it with corrected documentation; transparency often reduces penalties.
  • Protect privileged communications: If you discussed issues with a tax attorney, some communications may be privileged. Ask your attorney about privilege before sharing sensitive notes.

For templates and recordkeeping timelines, see our detailed field audit preparation guide: Field Audit Expectations: How to Prepare and What to Expect (https://finhelp.io/glossary/field-audit-expectations-how-to-prepare-and-what-to-expect/).

Mistakes to avoid

  • Don’t panic and destroy documents. That can lead to criminal exposure.
  • Don’t guess or fabricate answers; provide facts and offer to follow up with documentation.
  • Don’t sign any forms you don’t understand—request time to consult a professional.

Final notes and professional disclaimer

In my practice, audits that go smoothly are the ones where the taxpayer was organized, truthful, and represented when necessary. If you receive a notice, act promptly: gather documents, prepare a concise explanatory packet, and consider professional representation.

This article is educational and not individualized legal or tax advice. For decisions about a specific in-person IRS examination, consult a qualified tax advisor, CPA, enrolled agent, or tax attorney.

Authoritative sources

Internal FinHelp resources

If you want help preparing an audit packet or practicing answers to typical agent questions, a short engagement with a CPA or enrolled agent can save time and money in the long run.