Jan 27, 2026
What Triggers an IRS Audit? 10 Common Red Flags
What Triggers an IRS Audit?
Most people will never be audited.
But certain mistakes can increase your chances.
The IRS uses computer systems to scan tax returns for red flags. If something looks unusual, it may get reviewed.
Here are the most common triggers.
1. Large Income Changes
If your income changes a lot from one year to the next, it may raise questions.
Big jumps or big drops can trigger review.
2. High Deductions Compared to Income
If you report $40,000 in income but claim $35,000 in deductions, the IRS may look closer.
Your expenses should match your income level.
3. Claiming 100% Business Use
Claiming:
100% business vehicle use
100% home office use
100% business phone use
Can raise red flags.
It must be accurate and documented.
4. Large Charitable Donations
Large donations compared to your income can trigger review.
Always keep receipts.
5. Cash-Heavy Businesses
Restaurants, salons, contractors, and other cash businesses are audited more often.
Why? Cash is harder to track.
6. Home Office Deduction
The home office deduction is legal.
But it must meet strict rules:
Regular use
Exclusive use
Principal place of business
Many people claim it incorrectly.
7. Rounded Numbers Everywhere
Reporting $10,000, $5,000, $3,000 exactly for every expense looks suspicious.
Real numbers usually include cents.
8. Missing Income
The IRS receives copies of:
W-2s
1099s
1099-K forms
If you forget to report income, the system will catch it.
9. Early Retirement Withdrawals
Large withdrawals from retirement accounts without explanation can trigger review.
10. Claiming Credits You Don’t Qualify For
Credits like:
Earned Income Credit
Education credits
Fuel tax credits
Are often reviewed closely.
Does an Audit Mean You Did Something Wrong?
Not always.
Sometimes the IRS just wants clarification.
But responding correctly is critical.
Ignoring an audit notice can lead to:
Penalties
Interest
Liens
Wage garnishment
How to Lower Your Risk
You can reduce your audit risk by:
Filing accurate returns
Keeping proper records
Avoiding aggressive deductions
Working with a qualified tax professional
What If You Get Audited?
If you receive an audit notice:
Do not ignore it
Do not respond without reviewing carefully
Get professional guidance
Secure Accounting helps individuals and businesses:
Respond to IRS audits
Organize documentation
Communicate with the IRS
Reduce penalties when possible
📞 Schedule a consultation today and protect yourself before small issues become big problems.
