IRS Audit Triggers: How to Avoid an Unnecessary Audit
An IRS audit can be stressful and time-consuming, but understanding what triggers an audit can help you avoid unnecessary scrutiny. Here are the most common IRS red flags and how to minimize your risk.
1. Reporting Too Many Deductions or Losses
π¨ Excessive business deductions β If your expenses seem too high compared to income, the IRS may flag your return.
π¨ Claiming large charitable deductions β If donations exceed typical amounts for your income level, be prepared to provide receipts.
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Keep detailed records to justify deductions.
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Ensure deductions are reasonable and documented.
π Related: Your Guide to Tax Credits & Deductions
2. Underreporting Income (Especially Side Hustles & Freelance Work)
π¨ The IRS receives copies of all 1099 and W-2 forms. If your reported income doesnβt match IRS records, you may get flagged.
π¨ Cash businesses and gig workers (Uber, Airbnb, Etsy, etc.) are at higher audit risk.
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Report all income sources, including side jobs and online sales.
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Use IRS-approved accounting methods for accurate record-keeping.
π Related: IRS Notices & Letters: What to Do If You Get One
3. Large Cash Transactions & Unreported Bank Deposits
π¨ Banks report cash transactions over $10,000 to the IRS.
π¨ If your deposits donβt match reported income, it may raise IRS suspicion.
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Keep clear records of cash deposits and their sources.
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File Form 8300 if required (for large cash transactions).
π Related: IRS Relief Programs: What Help Is Available for Taxpayers?
4. Claiming 100% Business Use of a Car or Home Office
π¨ The IRS may audit home office deductions if they seem excessive.
π¨ Claiming 100% business use of a vehicle is a major red flag unless you have strong proof.
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Keep mileage logs and receipts for business expenses.
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Only claim legitimate business-related expenses.
π Related: Self-Employed Retirement Plans: SEP IRA, Solo 401(k), & More
5. Big Changes in Income or Large Refund Claims
π¨ A sudden drop in income may raise suspicion unless properly explained.
π¨ Claiming large refunds relative to prior years can also attract attention.
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Provide supporting documents for major changes in income or tax credits.
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Double-check calculations before filing.
π Related: New IRS Tax Law Changes for 2025
Final Thoughts
While you canβt guarantee avoiding an audit, accurate record-keeping and honest reporting will reduce your risk of IRS scrutiny.
π Next Steps:
- Review your tax return carefully before filing.
- Keep organized records of income and deductions.
- Report all taxable income to match IRS records.
π Need more IRS insights? Visit our IRS Tax Updates & Alerts Hub.