Is the IRS more likely to audit you if you file for extension?

Asked by: Maybelle Connelly  |  Last update: September 10, 2026
Score: 4.8/5 (68 votes)

No, filing for a tax extension does not increase your likelihood of being audited by the IRS. It is a common misconception; in fact, an extension can sometimes decrease audit risk by providing more time to file an accurate return and reduce errors. The IRS encourages filing extensions if necessary.

Does filing an extension trigger an audit?

And remember: tax filing extensions do NOT increase your audit risk. As long as you pay any taxes owed by the original deadline and file your return by the extended deadline, you're in good shape.

Does the IRS penalize you if you file an extension?

An extension gives you extra time to file, but not extra time to pay. After you file an extension, if you owe taxes when you file your return, you might also have to pay penalties and interest on the tax due.

What is most likely to trigger an IRS audit?

That being said, it's important to be aware of “triggers” for IRS audits, below is a list of some of the more egregious items.

  • Unreported income. ...
  • Rental income and deductions. ...
  • Home office deductions. ...
  • Casualty losses. ...
  • Business vehicle expenses. ...
  • Cryptocurrency transactions. ...
  • Day trading activities. ...
  • Foreign bank accounts.

Is filing an extension a red flag?

For those who are terrified of extensions, remember that they're okay. Unless you file for extensions for years and years, they're not going to increase your chance of being audited, and they won't have any consequences if you pay your taxes on time.

VERIFY: Does getting an extension on your taxes make you more likely to be audited by the IRS?

21 related questions found

Is there any chance for tax audit date extension?

The CBDT's extension of the tax audit due date to October 31, 2025, provides a welcome relief for taxpayers and professionals. However, it is essential to utilise this additional time effectively to avoid penalties under Section 271B.

What increases the likelihood of a tax 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.

Who gets audited the most by the IRS?

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.

How to avoid an IRS tax audit?

However, you can reduce the chance of audit significantly by paying careful attention to detail and recognizing whether you are reporting a transaction of special interest to the IRS. And if you do get audited, having accurate and complete records and professional advice can make the process go more smoothly.

Is it bad to file an IRS extension?

Filing a tax extension is not a bad thing. There is no penalty for filing a tax extension. However, not paying on time or enough, or failing to file altogether, may cost you.

What happens if I file taxes after October 15th?

If you file taxes after the October 15 extension deadline, the IRS will assess penalties and interest, primarily a failure-to-file penalty (5% per month, max 25%), plus a separate failure-to-pay penalty (0.5% per month) and daily interest on the unpaid taxes, though you can request penalty abatement for reasonable cause like natural disasters. The October deadline is for filing, not paying; if you owe, payment was due in April, so you'll likely face both penalties and interest until you file and pay, but you won't be penalized if you're due a refund. 

What are common Form 4868 mistakes?

Incorrect Estimates: Providing an inaccurate estimate of your tax liability can lead to penalties. Use available information to make the most accurate estimate possible. Missing the Deadline: Ensure you file Form 4868 by the original tax filing deadline, typically April 15, to qualify for the extension.

What happens when you file a tax extension?

If you need more time to file your taxes, request an extension by the April tax filing due date. This gives you until October 15 to file without penalties. Make sure you pay any tax you owe by the April filing date. The extension is only for filing your return.

How does the IRS choose who to audit?

IRS personnel screen the highest-scoring returns, selecting some for audit and identifying the items on these returns that are most likely to need review. Large Corporations – The IRS examines many large corporate returns annually.

Does a high income trigger an IRS audit?

As your family's income and assets increase, so does the likelihood of drawing attention from tax authorities. And with the IRS now using data analytics to help flag returns with certain markers, it's important to understand the most common audit triggers and ways to manage this risk.

What looks suspicious to the IRS?

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.

How often does the IRS audit normal people?

Many people worry about IRS audits. But the chances of being audited are actually very low for most individuals. Recent IRS data shows the IRS examined 0.40% of individual returns filed and 0.66% of corporation returns filed. Most of the IRS's focus is on large businesses and high-income earners.

What is the 5% rule for tax audit?

Business- Section 44AB(a)

A business is required to get an income tax audit if its total sales/turnover/gross receipts exceed ₹1 crore in a financial year. However, the limit for tax audit has been relaxed to ₹10 crore if: Cash receipts ≤ 5% of total receipts, and. Cash payments ≤ 5% of total payments.

What is the IRS 7 year rule?

The IRS 7-year rule primarily applies to keeping records for claiming a deduction for bad debts or losses from worthless securities, allowing a longer period to file for a credit or refund, but it's not a universal audit limit; it's often a recommended safe buffer for general record-keeping, with the standard IRS audit period usually being 3 years, extending to 6 years for substantial income omission (over 25%) or foreign income issues, and indefinitely for fraud.

Do you have a higher chance of audit from tax extension?

In the process, one of the most common questions we receive is whether filing a tax extension increases the chances of an audit. In short, the answer is no: filing a tax extension doesn't increase the chances of an audit.

What should you not say during an audit?

It's good to be specific, but there's a danger in words such as “everything,” “nothing,” “never,” or “always.” “You always” and “you never” can be fighting words that can distract readers into looking for exceptions to the rule rather than examining the real issue.