The IRS verifies tax returns by automatically comparing filed data against third-party records (W-2s, 1099s) and using computer algorithms for fraud detection, such as identifying identity theft via Letters 5071C or 4883C. Returns may be selected for audits (mail or in-person) to review documentation, or through random sampling.
An IRS audit is a review/examination of an organization's or individual's books, accounts and financial records to ensure information reported on their tax return is reported correctly according to the tax laws and to verify the reported amount of tax is correct.
The identity verification process from the IRS can be triggered on a random basis, or it could be due to suspicion that a tax return with your name on it is potentially the result of identity theft.
The IRS does not check every tax return. It does not check the majority of them, but the IRS implements methods that track certain factors that would result in a further examination or audit by them.
The IRS will check the data in the return for mathematical errors. It will verify filing statuses, exemptions and deductions and ensure you are legally entitled to any credits claimed on the return. It will also look for any indicators of tax fraud.
The IRS reviews some federal tax returns to determine if income, expenses, and credits are reported accurately. 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.
Taxpayers whose tax returns have been flagged for possible IDT should receive one of the following letters: Letter 5071C, Potential Identity Theft during Original Processing with Online Option – Provides online and phone options and is issued most widely.
Your refund
It may take up to 9 weeks to process your return after you verify it.
Be ready to verify your identity when calling the IRS
2. Making a lot of money. While the overall individual audit rates are extremely low, the odds increase significantly as your income goes up (especially if you have business income). According to IRS audit statistics, about 0.4% of total individual returns get audited by the IRS.
This letter is to notify you that the agency received a tax return with your name and Social Security number that it believes may not be yours. The letter asks you to take specific steps to verify your identity and confirm whether or not the return is actually yours.
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. The IRS mostly audits tax returns of those earning more than $200,000 and corporations with more than $10 million in assets.
If there is a potential discrepancy, a tax examiner will look further into your reported income. They'll compare the information reported to the IRS by employers, banks, businesses, and of payers to the income, credits, and deductions on your report.
One-time forgiveness, officially known as First-Time Penalty Abatement (FTA), is an IRS program that allows qualified taxpayers to have certain penalties removed from their tax accounts.
The IRS usually reviews receipts during an audit — if you don't have the receipts, you can sometimes use bank statements or credit card statements to prove your claims instead. Consequences of being audited without receipts can include additional taxes, interest, and financial penalties.
What percentage of tax returns are audited? Your chance is actually very low — this year, 2022, the individual's odds of being audited by the IRS is around 0.4%.
Does the IRS Catch All Mistakes? No, the IRS probably won't catch all mistakes. But it does run tax returns through a number of processes to catch math errors and odd income and expense reporting.
The biggest tax mistakes people make include filing late, math errors, incorrect personal info (like Social Security numbers), forgetting deductions/credits (like EITC), misreporting income, not signing forms, and making errors with bank details for direct deposit, all leading to delays, penalties, or missed savings, with using tax software or professionals helping avoid these common pitfalls.
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.