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Understanding IRS Audits: What You Need to Know

Published April 2026 | By Ray Chowdhury, CPA & CTRC

An IRS audit can feel overwhelming, but understanding what triggers one and how to respond can help you navigate the process with confidence. Whether you are a business owner or an individual, knowing the audit landscape is essential for protecting your tax position and your finances.

What Is an IRS Audit?

An IRS audit is an examination of your tax return to verify that the income, deductions, and credits you reported are accurate and supported by documentation. The IRS does not audit every return, but statistically, certain types of income and deductions raise the chances of selection. An audit is not necessarily an accusation of wrongdoing; it is simply a verification process.

Common Audit Triggers

Several factors increase the likelihood of an audit. High deductions relative to your income is a major red flag, especially business deductions that exceed typical industry benchmarks. Unreported income, whether from self-employment, investments, or side gigs, often triggers automated systems. Cash-heavy businesses like restaurants, construction, and salons face higher scrutiny because cash transactions are harder to trace. Home office deductions, while legitimate, attract attention if they are disproportionate to your business. Large charitable contributions relative to income can raise questions. Additionally, math errors on your return, missing signatures, or inconsistent information between forms increase audit risk. Even the business type matters; certain industries like real estate, tax services, and high-income professions see more audits.

Types of IRS Audits

There are three main types. A correspondence audit occurs entirely by mail; the IRS asks for documentation to support specific items on your return. This is the most common and least invasive type. An office audit requires you to visit an IRS office to present records and answer questions. The IRS typically focuses on specific line items. A field audit is the most serious; an IRS agent visits your home or business to examine records on-site. Field audits are rare but typically involve larger amounts or complex business issues.

What to Do If You Receive an Audit Notice

Do not panic. First, read the notice carefully to understand exactly what the IRS is questioning. Gather all relevant documentation including receipts, invoices, bank statements, and supporting records. Do not ignore the notice or miss any deadlines. Respond within the timeframe stated, typically 30 days. If you need more time, you can request an extension. Most importantly, do not communicate with the IRS alone if you are uncertain about your position. A qualified tax professional can advocate on your behalf, ensure your documentation is complete and properly presented, and represent you in discussions with the IRS.

Why You Should Hire a CPA for Audit Representation

Attempting to handle an audit without professional help is risky. A CPA or tax attorney understands IRS procedures, knows which documents are most important, and can interpret technical regulations in your favor. They communicate directly with the IRS, which removes stress from you and often leads to better outcomes. A qualified representative may identify legitimate deductions you overlooked, negotiate reductions in any proposed adjustments, or appeal unfavorable findings. The IRS respect professional representation and often move faster when dealing with CPAs versus individuals.

The Audit Process and Timeline

Once the IRS opens an audit, expect it to take several months for correspondence audits and longer for office or field audits. The process typically involves the IRS examining your documents, requesting clarifications, and potentially proposing adjustments. If you disagree with proposed changes, you have appeal rights. Throughout this process, your representative communicates on your behalf and helps you understand your options at each stage.

How Accountants Near Me Can Help

Our team specializes in IRS representation and audit defense. We respond to audit notices promptly, prepare organized documentation, and negotiate directly with the IRS to minimize any adjustments. If an audit notice arrives, contact us immediately. The sooner we become involved, the better we can protect your interests. We also help prevent future audit risk by ensuring your returns are properly documented and comply with all IRS requirements.

An audit is manageable when you have the right professional support. Do not face it alone. Let our experienced CPAs guide you through the process and help secure the best possible outcome.