How to Handle an IRS Audit - A Step-by-Step Guide

by Dos team

How to Handle an IRS Audit - A Step-by-Step Guide

A letter from the IRS selecting your return for examination is stressful. For most people, it arrives without warning and triggers immediate concern.

The good news is that most IRS audits are conducted by correspondence and focus on specific items rather than your entire return. With the right preparation and professional support, they can be resolved efficiently.

This guide explains what to expect and how to handle it.


Why the IRS Selects Returns for Audit

IRS returns are selected for audit through several methods:

Random selection - A small percentage of returns are audited purely at random, with no specific trigger.

Computer scoring - The IRS uses a scoring system (DIF) that compares items on your return to statistical norms. Returns that deviate significantly from the norm for comparable filers score higher and are more likely to be reviewed.

Related examinations - If a business or individual connected to your return is being audited, your return may be reviewed as part of that process.

Specific issues - Certain items attract scrutiny more frequently, including high deductions relative to income, self-employment income, rental losses, and unreported income identified through third-party data.

The IRS generally has three years from your filing date to audit a return. If income is understated by more than 25%, the window extends to six years. For fraud, there is no time limit.


Types of IRS Audit

Correspondence Audit The most common type. The IRS sends a letter requesting documentation for specific items on your return. You respond by mail or online. No in-person meeting is required. Most individual audits are conducted this way.

Office Audit You are asked to bring documentation to a local IRS office. These are typically used for more complex issues than correspondence audits address.

Field Audit An IRS agent visits your home or business. These are less common and typically reserved for complex business or high-income returns.


What to Do When You Receive an IRS Notice

Step 1: Read the Notice Carefully Every IRS notice has a specific notice number (in the upper right corner) and explains exactly what is being requested or disputed. Read it thoroughly. Understand what tax year is involved, what items are being examined, and what the deadline for response is.

Step 2: Do Not Ignore It Ignoring an IRS notice leads to a default assessment - the IRS determines your liability without your input. This is almost always worse than engaging with the process. Respond by the deadline stated in the notice.

Step 3: Contact a Tax Specialist If the audit involves anything beyond a simple documentation request, engage a CPA or Enrolled Agent immediately. EAs in particular are licensed to represent taxpayers before the IRS at all levels. Having professional representation reduces the risk of the audit expanding and ensures your responses are accurate and strategically sound.

Step 4: Gather Your Records Locate all documentation relevant to the items under review - bank statements, receipts, brokerage statements, mileage logs, business records, and any prior IRS correspondence. Organised, complete records are your most effective tool.

Step 5: Respond Accurately and Completely Provide exactly what has been requested - no more, no less. Do not volunteer information on items outside the scope of the audit. Your specialist will advise on how to frame your response.


Common Issues That Trigger IRS Scrutiny


How Long Does an IRS Audit Take?

Correspondence audits typically conclude within three to six months with prompt responses and clear documentation. Office and field audits take longer - sometimes twelve months or more for complex cases.

If you disagree with the IRS's findings, you have the right to appeal through the IRS Independent Office of Appeals, and ultimately to the US Tax Court. A tax specialist can advise on whether this is worth pursuing.


Penalties

If an audit results in additional tax owed, penalties may apply. Accuracy-related penalties - which cover negligence and substantial understatements of income - are charged at 20% of the underpayment. Civil fraud carries a much steeper penalty of 75% of the underpayment. The failure-to-pay penalty runs at 0.5% per month on the unpaid amount, up to a maximum of 25%. The failure-to-file penalty is 5% per month, also capped at 25%.

Interest accrues on unpaid amounts from the original due date of the return.

Penalties can be reduced or waived in some circumstances - for example, if you can demonstrate reasonable cause. A specialist can advise on whether a penalty abatement request is appropriate.


Prevention Is Better Than Resolution

The most effective preparation for an IRS audit is filing accurate returns every year, keeping complete records, and getting professional advice when your situation is complex.

If you discover an error in a previously filed return, correct it promptly by filing an amended return using Form 1040-X. Voluntary correction before the IRS contacts you is typically treated more favourably than an error found during an audit.

A qualified tax specialist can review your previous returns, identify any potential exposure, and advise on the appropriate course of action.

Related guides