Short Answer:

A correspondence audit is an IRS audit conducted entirely through the mail. The IRS sends a notice requesting additional information or documentation to verify specific items on a tax return, such as income, deductions, or credits.

This type of audit is generally simple and limited in scope. Taxpayers respond by sending the requested documents or explanations, and proper organization and timely response help resolve the audit efficiently without in-person visits.

Detailed Explanation:

Overview of Correspondence Audit

A correspondence audit is the most common and least intrusive type of IRS audit. It is conducted entirely by mail and usually involves a specific question or request regarding a taxpayer’s filed return. The IRS identifies potential discrepancies or clarifications needed through computer-generated assessments or routine reviews and sends a notice requesting documentation or explanations.

Scope and Purpose
The purpose of a correspondence audit is to verify the accuracy of particular items on a tax return. These audits often focus on one or two issues, such as unreported income, claimed deductions, or credits. Since the audit is narrow in scope, it is generally quicker and simpler than office or field audits, making it more manageable for taxpayers.

IRS Communication
During a correspondence audit, the IRS sends a letter detailing the issue and providing instructions for responding. The letter includes a notice number, the tax year in question, and the type of documentation needed. It also specifies a deadline for submitting the response. Taxpayers are expected to review the request carefully, gather the necessary documents, and respond on time.

Required Documentation
Acceptable documentation may include W-2 forms, 1099 forms, bank statements, receipts, invoices, or other records that support income, deductions, or credits. Taxpayers should organize the documents clearly and submit copies, not originals, unless specifically requested. Providing complete and accurate documentation reduces the risk of penalties or adjustments.

Responding to a Correspondence Audit
Taxpayers respond by mailing the requested documents or, if allowed, using online submission tools provided by the IRS. Responses should reference the notice number, clearly explain the information, and include all relevant supporting documentation. Prompt response ensures that the audit is resolved efficiently and prevents additional follow-up notices or penalties.

Advantages and Limitations
The correspondence audit is convenient because it does not require in-person meetings. However, it is limited in scope and only addresses the specific items mentioned in the notice. If the IRS requires further clarification or finds additional discrepancies, more extensive audits, such as office or field audits, may follow.

Conclusion

A correspondence audit is a mail-based IRS audit that focuses on verifying specific items on a tax return. Taxpayers respond by providing documentation and explanations according to the instructions in the notice. Timely and organized responses help resolve the audit efficiently and maintain compliance, while also reducing the risk of penalties or additional scrutiny.