Not all tax returns are audited, but nearly all undergo some form of automated screening for accuracy and fraud. While less than 0.5% of individual returns face a full, in-depth audit, the IRS uses automated computer programs, such as the Discriminant Information Function (DIF), to compare returns against statistical norms.
You will find out that your tax return is being reviewed through a CP05 notice from the IRS. This notice indicates that your tax return is under review for accuracy regarding income, tax withholding, and credits. If you receive a CP05 notice, you do not need to take any action.
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.
If a return hits an edit, processing stops and the system assigns the return to a queue to be manually processed. At this time the ``manual review'' message will appear on the taxpayer's account. The ``manual review'' message means the return is in a queue and does not mean the return is actively being reviewed.
The ``under review'' status simply indicates that your return is in process, so there is no cause for concern at this stage. If the IRS identifies any issues, they will contact you in writing to request additional information.
A tax refund could be delayed weeks or even months in some cases. The length of the delay may depend on how backed up the IRS is on processing tax returns, whether you turn around requested documentation quickly, and whether you need to file an amended return.
Common IRS audit triggers
If the IRS is reviewing your return, it may have questions about your wages and withholding, or credits or expenses shown on your tax return. The review process could take anywhere from 45 to 180 days, depending on the number and types of issues the IRS is reviewing.
Different amount: If the refund isn't the amount you expected, you should receive a notice explaining why. If you don't receive a notice or you believe the IRS changed your refund incorrectly, contact the IRS or order a transcript to find out about any IRS changes.
The IRS can review your past three tax returns in audits — and up to six years if major errors are found. Audit odds are low, but the IRS uses automated programs to identify issues. Common red flags include unreported income and excessive deductions. High earners and digital currency users may face extra scrutiny.
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 most convenient way to check on a tax refund is by using the Where's My Refund? tool on IRS.gov. Taxpayers can start checking their refund status within 24 hours after the IRS acknowledges receipt of the taxpayer's e-filed return.
The IRS selects returns for review using various methods; including random sampling, computerized screening, and comparison of information received by the IRS such as Forms W-2 and 1099. Having your return selected for review does not suggest that you made an error or were dishonest.
One common reason is when the IRS has questions about the accuracy of your previous year's return. This might happen if they suspect errors in tax filing or are conducting an audit. In such cases, if the IRS changes your refund and you disagree, you generally have 60 days to dispute their decision.
What should I do? Request an expedited refund by calling the IRS at 800-829-1040 (TTY/TDD 800-829-4059). Request a manual refund expedited to you.
If the IRS decides that your return merits a second glance, you'll be issued a CP05 Notice 1 . This notice lets you know that your return is being reviewed to verify any or all of the following: Your income. Your tax withholding.
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.
Here's a list of seven symptoms that call for attention.
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.
Processing your refund usually takes: Up to 21 days for an e-filed return. 6 weeks or more for returns sent by mail. Longer if your return needs corrections or extra review.
Ultimately, the IRS selects returns for audit because the agency suspects that, due to understatements of income or overstatements of deductions, the taxpayer has not correctly reported their tax due. If a taxpayer is selected for audit, the IRS will send notice by mail.
The report after a review is not considered to provide a professional opinion about the nonprofit's financial statements as a whole. The key difference between an audit and a review is that conducting an audit requires the auditor to obtain independent confirmation or verification of the financial information examined.