How the IRS Catches Tax Cheats and Liars (2024)

The Internal Revenue Service (IRS) knows it has a big problem. Estimates from the IRS reveal a gross tax gap of $496 billion between 2014 and 2016 (its most recent estimate). The tax gap is the spread between what the government thinks it should be collecting and what it collects.

Some cheats fail to report income, while others knowingly take write-offs they’re not entitled to. For example, the government pays out billions of dollars annually in refundable earned income tax credits due to fraudulent claims.

Obviously, threats of civil and criminal penalties are not enough to deter some people from cheating, so the IRS employs several ways to find these individuals.

Key Takeaways

  • Threats of civil and criminal penalties are not enough to deter some people from cheating, so the IRS employs a number of ways to identify individuals who are skipping out on their taxes.
  • It is believed that the IRS can track credit card transactions and other electronic information, andthat it is using this added data to find tax cheats.
  • It's probable that social media isn’t the audit trigger, but social media may be useful to the IRS once discrepancies are identified to find tax cheats and liars.

Computer Data Analysis

The IRS uses an Information Returns Processing (IRP) Systemto match information sent by employers and other third parties to the IRS with what is reported by individuals on their tax returns. The matching is based on information returns submitted to the IRS on W-2s (reporting wages), 1099s (reporting interest, dividends, securities transactions, and non-employee compensation),and Schedule K-1s (reporting income and expenses from partnerships, S corporations, trusts, and estates).

The IRS computers then find individuals who received this reported information to make sure it’s been reported on their tax returns. Some omissions or errors by individuals are simple mistakes; some, however, result from trying to cheat on taxes.

From April 2022 to September 2022, the Treasury Inspector General for Tax Administration (TIGTA) completed 39 audits and 1,143 investigations that resulted in the "recovery, protection, and identification of monetary benefits totaling more than $2.1 billion."


IRS computers have become more sophisticated than simply matching and filtering taxpayer information. It is believed that the IRS can track credit card transactions and other electronic information andthat it is using this added data to find tax cheats. Not surprisingly, the IRS doesn’t share much information about this activity with the public other than the fact that it’s being done.

Your Social Media Footprint

If you are being audited, the IRS might be monitoring your public social media posts. (Again, there is little information from the agency about this activity.) Postings on Facebook, X (formerly Twitter), Instagram, and other sites can reveal lifestyles that don’t fit with the amount of income reported on tax returns or with deductions claimed. For example, a claimed deduction for a business trip may be a lie when an individual reveals on social media that the trip was a family vacation.

Of course, without more disclosure from the IRS, how and when social media is used is largely conjecture; however, it’s probable that social media isn’t the audit trigger (the IRS continues to rely on computer matching and other traditional ways to target individuals for audits).

While social media may help the IRS find individuals cheating on their taxes, there is no proof it is used in this way; however, it is always wise to consider carefully what you post online.

The extent to which the IRS may investigate individuals is not known.

  • Is the agency looking at private e-mails? Keep in mind that under the Electronic Communications Privacy Act, a federal law enforcement agency can view without a warrant any e-mails stored on a third-party server that have been there more than 180 days as long as they are relevant to an investigation; the e-mails are considered to be abandoned.
  • Is the IRS looking into nonpublic postings on social media? A person can be compelled to reveal postings even when this can be incriminating.

Whistleblowers

A disgruntled employee or a former spouse may tell the IRS about income that isn’t being reported or other erroneous tax actions that could lead the IRS to recoup taxes. Some whistleblowers do it for revenge, others because they believe they’re doing the right thing, while others do it for the money. The IRS pays a reward of up to 30% of the government’s recovery for certain whistleblowing:

  • Mandatory award: generally 15% to 30% of the amount collected by the government as a result of the informant’s tip. The taxes, interest, and penalties in dispute must be more than $2 million. (If an individual is being informed upon, their gross income for the year in question must be more than $200,000.) The informant can appeal an award to the Tax Court.
  • Discretionary award: This award, which can be granted if the conditions of the mandatory award aren’t met, is discretionary under IRC section 7623(a).

Does the IRS Check Every Tax Return?

The IRS does not check every tax return; in fact, it does not check the majority of them; however, the IRS implements methods that track certain factors that would result in a further examination or audit by them.

Does the IRS Reward You If You Report a Tax Cheat?

The IRS can reward you if you report a tax cheat. The IRS Whistleblower Office awards eligible individuals that report tax cheats if the information they provide is used. The award is generally between 15% and 30% of the collected proceeds.

How Often Does the IRS Catch Tax Mistakes?

The IRS does not audit/catch mistakes in the majority of tax returns. In 2022, approximately 708,309 returns were audited out of the 262.8 million federal tax returns filed.

The Bottom Line

Even though the IRS does not check all tax refunds, it is a large agency with a wide reach that has a variety of means of catching tax cheats and liars. The penalties for avoiding or lying about taxes are severe. If you are unsure about how to complete your taxes, seek a professional tax advisor or similar service to assist you.

How the IRS Catches Tax Cheats and Liars (2024)

FAQs

How does the IRS catch tax cheats? ›

Various investigative techniques are used to obtain evidence, including interviews of third party witnesses, conducting surveillance, executing search warrants, forensically examining evidence, subpoenaing bank records, and reviewing financial data.

Will the IRS know if I lied on my taxes? ›

The IRS has a formula for picking out returns to audit. The IRS is more likely to audit certain types of tax returns – and people who lie on their returns can create mismatches or leave other clues that could result in an audit. Audits can be costly and long.

How does the IRS catch mistakes? ›

The IRS compares returns with documents it receives, such as W-2s or 1099s from employers or financial institutions; if the information doesn't match you'll likely get a CP2000 notice. A discrepancy could result in additional taxes owed or possibly a refund.

How do I get answers from the IRS? ›

Call the IRS toll free at 800-829-1040 or make an appointment to visit an IRS taxpayer assistance center (TAC).

What three things will the IRS never do? ›

Three Things the IRS Will Never Do
  • The IRS Will Never Cold Call You About Debt. Their policy is to always mail you a bill first. ...
  • The IRS Will Never Demand Immediate Payment. ...
  • The IRS Will Never Threaten You.

Do tax cheats go to jail? ›

Penalty for Tax Evasion in California

Tax evasion in California is punishable by up to one year in county jail or state prison, as well as fines of up to $20,000. The state can also require you to pay your back taxes, and it will place a lien on your property as a security until you pay.

Can the IRS see your bank records? ›

The Short Answer: Yes. Share: The IRS probably already knows about many of your financial accounts, and the IRS can get information on how much is there. But, in reality, the IRS rarely digs deeper into your bank and financial accounts unless you're being audited or the IRS is collecting back taxes from you.

What happens if you are audited and found guilty? ›

If you are audited and found guilty of tax evasion or tax avoidance, you may face a fine of up to $100,000 and be guilty of a felony as provided under Section 7201 of the tax code.

How often does the IRS catch mistakes? ›

Regardless of whether you're among the "high-income, high-wealth individuals" the IRS is targeting this year, your chances of being audited are still pretty slim: Of the roughly 165 million returns the IRS received in 2022, approximately 626,204, or less than 0.4%, were audited.

Does the IRS forgive honest mistakes? ›

We may be able to remove or reduce some penalties if you acted in good faith and can show reasonable cause for why you weren't able to meet your tax obligations. By law we cannot remove or reduce interest unless the penalty is removed or reduced.

What raises red flags with the IRS? ›

Too many deductions taken are the most common self-employed audit red flags. The IRS will examine whether you are running a legitimate business and making a profit or just making a bit of money from your hobby. Be sure to keep receipts and document all expenses as it can make things a bit ore awkward if you don't.

How do tax evaders get caught? ›

Usually, tax evasion cases on legal-source income start with an audit of the filed tax return. In the audit, the IRS finds errors that the taxpayer knowingly and willingly committed. The error amounts are usually large and occur for several years – showing a pattern of willful evasion.

Who is best to answer tax questions? ›

The IRS helps taxpayers get forms and publications and answers a wide range of tax questions. The IRS can also help individuals find free tax preparation services.

How does IRS communicate with you? ›

The IRS initiates most contacts through regular mail delivered by the United States Postal Service. However, there are circ*mstances in which the IRS will call or come to a home or business.

Does the IRS contact your employer? ›

The agency can't contact third parties such as an employer or bank for information unless they give the taxpayer reasonable notice first. The same confidentiality a taxpayer has with an attorney also applies to tax professionals working with the IRS on the taxpayer's behalf.

Do IRS computers dream about tax cheats? ›

Computers do not have minds and they do not dream. But, even though computers have certain subjective limitations, they have unlimited potential in the modern tax enforcement and compliance initiatives recently adopted by the IRS.

How does the IRS check everyone's taxes? ›

The IRS manages audits either by mail or through an in-person interview to review your records. The interview may be at an IRS office (office audit) or at the taxpayer's home, place of business, or accountant's office (field audit). Remember, you will be contacted initially by mail.

How does the IRS catch unreported income? ›

The IRS receives information from third parties, such as employers and financial institutions. Using an automated system, the Automated Underreporter (AUR) function compares the information reported by third parties to the information reported on your return to identify potential discrepancies.

How often does the IRS catch tax mistakes? ›

Regardless of whether you're among the "high-income, high-wealth individuals" the IRS is targeting this year, your chances of being audited are still pretty slim: Of the roughly 165 million returns the IRS received in 2022, approximately 626,204, or less than 0.4%, were audited.

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