The IRS (www.irs.gov) primarily notifies taxpayers of an audit by mail, sending official correspondence to the last known address. A letter or notice is the first step, often specifying which records are under review. Common, initial audit letters include Letter 525, Letter 566, or CP75, which explain the reason for the inquiry and outline requested documentation.
Remember, you will be contacted initially by mail. The IRS will provide all contact information and instructions in the letter you receive. If we conduct your audit by mail, our letter will request additional information about certain items shown on the tax return such as income, expenses, and itemized deductions.
The overall odds of an IRS audit are low, about 4 out of every 1,000 returns. However, high-net-worth individuals are more likely to be targeted due to complex income sources, large deductions, and sophisticated financial structures.
You know the IRS might be investigating you through official mail (first contact), phone calls (often with automated messages to IRS.gov), or in-person visits, but signs of a criminal probe include contact with IRS Criminal Investigation (CI) agents, subpoenas to you or your bank, questions to your accountant/bank, unusual account activity (freezing/refusing transactions), or agents suddenly going silent after an audit. Key indicators are official IRS letters, contact from CI special agents, third-party inquiries, and formal summonses for records, signaling serious scrutiny beyond a simple audit.
Unreported income
The IRS receives copies of your W-2s and 1099s, and their systems automatically compare this data to the amounts you report on your tax return. A discrepancy, such as a 1099 that isn't reported on your return, could trigger further review.
The IRS uses a combination of automated and human processes to select which tax returns to audit. Not reporting all of your income is an easy-to-avoid red flag that can lead to an audit. Taking excessive business tax deductions and mixing business and personal expenses can lead to an audit.
What happens during an audit? Internal audit conducts assurance audits through a five-phase process which includes selection, planning, conducting fieldwork, reporting results, and following up on corrective action plans.
If the deductions, losses, or credits on your return are disproportionately large compared with your income, the IRS may want to take a second look at your return. Taking a big loss from the sale of rental property or other investments can also spike the IRS's curiosity.
The government has no legal obligation to notify you that you're under investigation. There is no constitutional right to know that prosecutors are building a case against you.
Filers most commonly receive letters from the IRS notifying them of the examination in the fall or winter months of the previous tax filing year. Yet, the auditors can mail the notifications throughout the year.
Correspondence audits are the most common IRS audit types. The Internal Revenue Service conducts this audit to request additional documentation from taxpayers.
Most audits start a few months after you file your return
Once you answer the IRS' questions about the accuracy of your return, the IRS will release your refund. Audits that start soon after filing usually focus on tax credits, such as the earned income tax credit and the child tax credit.
If the IRS proves willful misconduct, you may face criminal charges, fines, and— in severe cases—prison. Most taxpayers, however, receive civil penalties only. Refunds are paused until the audit finishes.
A search warrant is one of the clearest (and most alarming) signs that the police are investigating you or something connected to you. To get that warrant, law enforcement had to convince a judge that there's probable cause to believe evidence of a crime is at your location.
Don't Express Personal Opinions or Judgments. The investigation is not about how you feel or what you think. Its purpose is to collect facts and make a decision based on those alone.
A portion of your wages are protected from levy. The protected amount is the equivalent to the standard deduction, plus any deductions for personal exemptions. The IRS can't seize certain personal items, such as necessary schoolbooks, clothing, undelivered mail and certain amounts of furniture and household items.
The Final Phase: Audit Reporting
The last phase of the audit process involves finalizing the audit report and communicating the findings to the organization's management and stakeholders.
Five Common Audit Findings and How to Address Them: Insights from Page Kirk
Audit tips and tricks key takeaways: