Filing a tax return accurately is one of the most effective ways to stay compliant with the Internal Revenue Service (IRS). Although the word “audit” often causes concern, being selected for an IRS examination does not necessarily mean that a taxpayer has done something wrong. In many cases, the agency simply needs additional information to verify that a return was completed correctly.
Understanding how IRS audits work and adopting good tax compliance practices can help individuals and businesses reduce the likelihood of facing unnecessary scrutiny.
What Is an IRS Audit?
An IRS audit, officially referred to as an examination, is a review of an individual’s or business’s financial records to determine whether the information reported on a tax return is accurate and complies with federal tax laws. Depending on the circumstances, the IRS may request documentation to verify income, deductions, credits, or other reported items.
In most cases, the IRS begins the audit process by sending an official notice through the U.S. mail. While an IRS representative may contact a taxpayer later in the process, the agency does not initiate audits through phone calls, emails, text messages, or social media.
What Can Trigger an IRS Audit?
Although some tax returns are selected randomly, most audits result from inconsistencies or reporting patterns that require further review. Common factors include unreported income, mathematical errors, deductions or tax credits that appear disproportionate to a taxpayer’s income, and discrepancies between the information reported on a return and records received by the IRS from employers, financial institutions, or other third parties.
Taxpayers with foreign financial reporting obligations who fail to disclose required accounts or assets may also attract additional scrutiny. Likewise, individuals and businesses with higher levels of income are statistically more likely to be audited than the average taxpayer.
The IRS generally conducts three types of audits. A Correspondence Audit is handled by mail and usually involves requests for specific documents. An Office Audit requires the taxpayer to meet with an IRS representative at a local office, while a Field Audit is the most comprehensive, taking place at the taxpayer’s home, business, or accountant’s office.
Best Practices to Reduce Your Risk
While no strategy can completely eliminate the possibility of an audit, maintaining organized financial records and preparing tax returns carefully can significantly reduce the risk.
Keeping receipts, invoices, bank statements, and other supporting documentation makes it easier to substantiate the information reported on a return. Reviewing tax forms before filing helps identify calculation mistakes and inconsistencies, while reporting all sources of income ensures that IRS records match the taxpayer’s return.
It’s equally important to claim only deductions and tax credits that are properly documented and supported by applicable tax rules. If the IRS requests additional information, responding promptly and accurately can help resolve the matter more efficiently.
For companies and investors operating across borders, another critical factor is having the right international structure in place from the beginning. A well-designed cross-border structure helps ensure compliance with U.S. reporting obligations while minimizing reporting gaps and inconsistencies that may attract IRS scrutiny.
International operations involving foreign corporations, partnerships, trusts, financial accounts, or related-party transactions often trigger specific reporting requirements, including Forms 5471, 5472, 8865, 8938, 3520, as well as the FBAR (FinCEN Form 114). Failing to identify and meet these obligations—even unintentionally—can lead to significant penalties and increase the likelihood of an IRS examination.
Proper planning goes beyond tax efficiency. When an international structure is established with clear entity classifications, ownership mapping, and well-documented intercompany transactions, businesses are better positioned to meet their reporting obligations, maintain consistent documentation, and respond confidently to IRS inquiries. In this sense, sound international structuring serves as a key compliance strategy, helping reduce audit risks while supporting long-term cross-border operations.
For businesses, foreign investors, and individuals with more complex tax situations, working with experienced tax professionals provides an additional layer of confidence. Professional guidance helps ensure compliance with current regulations, minimizes reporting errors, and prepares taxpayers to respond effectively if questions arise.
An IRS audit is not necessarily an indication of wrongdoing, but rather a process designed to verify the accuracy of tax filings. By maintaining complete records, reporting information consistently, and seeking professional tax guidance when needed, taxpayers can significantly reduce the likelihood of an examination and navigate the U.S. tax system with greater confidence.
Avoid costly tax mistakes before they happen. Whether you’re an individual taxpayer, a foreign investor, or a company with international operations, Drummond Advisors helps clients navigate U.S. tax obligations, strengthen compliance, and build the right international structure to minimize audit risks. Contact our team to learn how we can support your business.
Written by Paola Von Atzingen and Maikon Luiz