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Understanding IRS Audits: What Triggers Them & How to Avoid Issues

Posted by Louis T. Wierenga | Mar 25, 2025 | 0 Comments

IRS Audits: Know the Triggers & Stay Compliant - Wierenga.Tax

An IRS audit is one of the most dreaded experiences for taxpayers. While only a small percentage of tax returns are audited each year, understanding what triggers an audit and how to stay compliant can help you avoid unnecessary stress and potential penalties. In this comprehensive guide, we will discuss IRS audit triggers, ways to minimize audit risks, and how Wierenga.Tax can help you ensure full compliance with tax laws.

What is an IRS Audit?

An IRS audit is a review of a taxpayer's accounts and financial information to verify that tax returns were filed correctly and accurately. The IRS conducts audits to ensure compliance with tax laws and identify discrepancies that may lead to unpaid taxes or fraud.

Common IRS Audit Triggers

Several factors can increase the likelihood of an IRS audit. Here are some of the most common audit triggers:

1. High Income

The IRS uses automated systems to compare tax returns against statistical norms. Taxpayers earning significantly more than the average income are more likely to be audited since high-income earners have more complex financial situations and potential opportunities for tax avoidance.

2. Mathematical Errors or Inconsistencies

Simple mistakes like incorrect calculations or mismatched figures between tax forms (e.g., W-2s, 1099s, and Schedule C) can raise red flags and prompt an audit. Accuracy is critical when preparing your tax return.

3. Unreported Income

Failure to report all sources of income, such as freelance work, rental income, or side gigs, can result in an audit. The IRS cross-checks reported income with third-party documents like 1099s and W-2s to identify discrepancies.

4. Large Charitable Donations

While charitable contributions can reduce your taxable income, unusually large donations in relation to your income may trigger an audit. Be sure to keep detailed records and receipts for all donations.

5. Claiming Excessive Deductions

Deductions such as home office expenses, business travel, and meal costs must be reasonable and well-documented. Overstating deductions compared to industry norms or income levels may raise suspicion.

6. Home Office Deduction

The IRS scrutinizes home office deductions, especially for self-employed individuals. To qualify, the space must be used exclusively for business purposes, and taxpayers should maintain detailed records.

7. Self-Employment and Cash Businesses

Small business owners and self-employed individuals face higher audit risks due to potential underreporting of income and improper expense deductions. Businesses that operate primarily in cash, such as restaurants and salons, may attract additional IRS scrutiny.

8. Claiming Dependents Incorrectly

Claiming dependents inaccurately, such as listing a child who is not your dependent, can trigger an audit. Ensure that you meet all IRS eligibility requirements when claiming dependents.

9. Foreign Bank Accounts and Investments

U.S. taxpayers with foreign financial assets must report them to the IRS. Failure to disclose offshore accounts or foreign income can lead to an audit and severe penalties.

10. Filing Schedule C with Large Losses

Frequent losses reported on a Schedule C (Profit or Loss from Business) may indicate that a business is being used to offset taxable income improperly. The IRS scrutinizes businesses that report losses year after year.

How to Avoid IRS Audit Issues

Avoiding an IRS audit requires proactive tax compliance. Here are key steps to minimize audit risks:

1. File an Accurate and Complete Tax Return

Double-check all figures, ensure consistency across tax forms, and verify that all required documents are included. Consider using professional tax preparation services like Wierenga.Tax to ensure accuracy.

2. Report All Income Sources

Ensure that all income is reported, including freelance work, rental income, and investment gains. The IRS receives copies of your 1099s and W-2s, so any discrepancies can trigger an audit.

3. Maintain Proper Documentation

Keep records of income, expenses, and deductions for at least three years. This includes receipts, invoices, bank statements, and charitable contribution acknowledgments.

4. Be Cautious with Deductions

Ensure all deductions are legitimate, reasonable, and well-documented. Avoid inflating business expenses, charitable contributions, and home office deductions.

5. Use Electronic Filing

E-filing reduces the chances of errors compared to paper filing. The IRS processes e-filed returns faster, and it helps prevent audit-triggering mistakes.

6. Pay Estimated Taxes If Required

Self-employed individuals and those with significant investment income should make estimated tax payments to avoid IRS scrutiny.

7. Seek Professional Help

Working with a tax professional, like Wierenga.Tax, ensures compliance with IRS regulations and minimizes errors. Professional tax preparers understand tax laws and can help you maximize deductions while staying audit-proof.

What to Do If You Are Audited

If you receive an audit notice from the IRS, follow these steps:

  • Don't Panic: An audit does not necessarily mean you did something wrong. Stay calm and review the audit notice carefully.

  • Gather Documentation: Collect all relevant financial records, receipts, and statements to support your tax return.

  • Respond Promptly: Respond to the IRS request within the specified timeframe to avoid penalties.

  • Consider Professional Representation: Hiring a tax professional, such as Wierenga.Tax, can help you navigate the audit process and present your case effectively.

Why Choose Wierenga.Tax for Your Tax Preparation Needs?

Wierenga.Tax provides expert tax planning and preparation services to help you stay compliant and avoid costly IRS penalties. Our team ensures that your tax returns are accurate, deductions are maximized legally, and audit risks are minimized. We take the stress out of tax season by offering reliable, efficient, and personalized services tailored to your financial situation.

Our Services Include:

  • Comprehensive income tax preparation

  • Bookkeeping and financial recordkeeping

  • IRS audit assistance and tax compliance consulting

  • Tax planning to reduce liabilities legally

  • Expert guidance on deductions and credits

By choosing Wierenga.Tax, you can be confident that your tax filings are accurate and compliant with IRS regulations. Don't let the fear of an IRS audit keep you up at night—let our professionals handle your tax matters with expertise and precision.

Final Thoughts

Understanding IRS audit triggers and how to avoid issues is crucial for taxpayers. By following best practices for tax compliance and working with a professional tax service like Wierenga.Tax, you can reduce the risk of an audit and gain peace of mind.

For expert tax preparation and bookkeeping services, visit Wierenga.Tax today and schedule a consultation with our experienced tax professionals.

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