Dealing with the IRS can be a daunting experience, especially when you receive an audit notice. Understanding the different types of IRS audits and what each entails can help you navigate the process more effectively. However, it’s crucial to recognize that handling an audit is not a DIY task. Professional assistance can make a significant difference in the outcome.

Here, we break down the three main types of IRS audits: Correspondence Audit, Office Audit, and Field Audit, and explain why seeking professional help is essential.

Correspondence Audit

What It Involves:

A Correspondence Audit is the most common and least intrusive type of IRS audit. It is conducted entirely by mail and typically focuses on specific issues or discrepancies in your tax return. The IRS will send you a letter requesting additional information or documentation to support certain items on your return, such as deductions, credits, or income.

Steps Involved:

  1. Receiving the Notice: The IRS will send a letter outlining the specific issues they want to examine.
  2. Gathering Documentation: You will need to collect and organize the requested documents, such as receipts, bank statements, or other relevant records.
  3. Responding to the IRS: You must mail the requested information back to the IRS by the specified deadline.
  4. Review by the IRS: The IRS will review the submitted documents and determine whether any adjustments to your tax return are necessary.
  5. Final Decision: You will receive a final notice from the IRS detailing any changes to your tax liability.

Why Professional Help is Essential:

While a Correspondence Audit may seem straightforward, it’s easy to make mistakes that could lead to unfavorable outcomes. A tax professional can help you gather the correct documentation, ensure your response is accurate and complete, and communicate effectively with the IRS on your behalf. This expertise can significantly reduce the risk of errors and increase the likelihood of a favorable resolution.

Office Audit

What to Expect:

An Office Audit is more involved than a Correspondence Audit and requires you to meet with an IRS auditor at a local IRS office. This type of audit typically focuses on more complex issues and may involve a thorough review of multiple areas of your tax return.

Steps Involved:

  1. Receiving the Notice: The IRS will send a letter requesting that you schedule an appointment at a local IRS office.
  2. Preparing for the Audit: You will need to gather extensive documentation to support the items under review, such as financial statements, receipts, and other records.
  3. Meeting with the Auditor: During the appointment, the IRS auditor will ask questions and review your documentation in detail.
  4. Providing Additional Information: If the auditor requests further information, you may need to provide additional documents or explanations.
  5. Final Decision: After the audit, the IRS will issue a report detailing any changes to your tax liability.

Why Professional Help is Essential:

An Office Audit can be intimidating and complex. A tax professional can help you prepare thoroughly, ensuring you have all the necessary documentation and understand the questions you may be asked. They may also be able to represent you at the audit, providing expert guidance and reducing the stress of you having to participate in the audit. Their expertise can deal with the audit more smoothly and achieve a better outcome.

Field Audit

What It Entails:

A Field Audit is the most comprehensive and intrusive type of IRS audit. It involves an IRS agent visiting your home, place of business, or your tax professional’s office to conduct a thorough examination of your financial records and tax return. This type of audit is typically reserved for more complex cases or when the IRS suspects significant discrepancies.

Steps Involved:

  1. Receiving the Notice: The IRS will send a letter notifying you of the audit and scheduling a visit.
  2. Preparing for the Audit: You will need to gather extensive documentation, including financial statements, receipts, and other records.
  3. Meeting with the Auditor: The IRS agent will visit your location and conduct a detailed review of your records, asking questions and requesting additional information as needed.
  4. Providing Additional Information: You may need to provide further documentation or explanations during and after the visit.
  5. Final Decision: After the audit, the IRS will issue a report detailing any changes to your tax liability.

Why Professional Help is Essential:

A Field Audit is the most challenging type of audit to handle on your own. The presence of an IRS agent in your home or business can be highly stressful, and the stakes are often higher. A tax professional can help you prepare thoroughly, ensuring you have all the necessary documentation and understand the process. They can also represent you during the audit, providing expert guidance and reducing the stress of facing the IRS alone. Their expertise can help you navigate the process more smoothly and achieve a better outcome.

How to Get Help

Understanding the different types of IRS audits and what each entails is crucial, but it’s equally important to recognize that handling an audit is not a DIY task. Professional assistance can make a significant difference in the outcome, ensuring you are well-prepared and represented throughout the process.

Dealing with the IRS can be complex and stressful. Let our office do the heavy lifting for you. Contact us today to learn how we can help you navigate the audit process and achieve the best possible outcome.


If you have any questions, please contact our office at (503) 224-5321. Isler Northwest LLC is a firm of business advisors and CPAs in Portland, Oregon. Our service goal at Isler Northwest is to earn our clients’ trust as their primary business and financial advisor.

Isler Northwest
(503) 224-5321
1300 SW 5th Avenue
Suite 2900
Portland, Oregon 97201