8 Most Common Triggers That Could Lead to a Tax Audit

While an audit can happen to anyone, they are more common among tax returns that include these triggers.
Updated April 9, 2024
Fact checked
man received a letter reading bad message

We receive compensation from the products and services mentioned in this story, but the opinions are the author's own. Compensation may impact where offers appear. We have not included all available products or offers. Learn more about how we make money and our editorial policies.

Tax season might cause excitement if you're expecting a refund or dreading a hefty tax bill. But whether you're paying or receiving, you'll want to avoid the IRS flagging your return.

If you're trying to supplement your income by depending on your return, an audit can become especially stressful. Audits are not entirely random and some scenarios increase your risk. But by knowing what they are, you might avoid them. 

Filing your tax return is hard enough; the last thing you need is to have it come back to haunt you.

If you’re over 50, take advantage of massive discounts and financial resources

Over 50? Join AARP today — because if you’re not a member you could be missing out on huge perks. When you start your membership today, you can get discounts on things like travel, meal deliveries, eyeglasses, prescriptions that aren’t covered by insurance and more.

How to become a member today:

  • Go here, select your free gift, and click “Join Today”
  • Create your account (important!) by answering a few simple questions
  • Start enjoying your discounts and perks!

Important: Start your membership by creating an account here and filling in all of the information (Do not skip this step!) Doing so will allow you to take up 25% off your AARP membership, making it just $12 per year with auto-renewal.

Become an AARP member now

Taking a home office deduction

Svitlana/Adobe business people working together

If your employer provides you with office space “at the office,” you can't claim a home office expense on your tax return while you are working remotely. This is true even if you use a room in your home exclusively for work.

You may be able to claim a home office deduction as a self-employed individual if you meet certain requirements. When determining the deduction, you may calculate the square footage of the office or the percentage of the home that qualifies.

Want to learn how to build wealth like the 1%? Sign up for Worthy to get ideas and advice delivered to your inbox.

Reporting a hobby as a business

GVS/Adobe man painting handmade pottery at ceramic workshop

Hobby and business income are reported in different sections, but many people confuse the two. 

If you don’t intend to make a profit from your activities, your income might qualify as a hobby. This could help you avoid some self-employment tax.

However, you should take caution when reporting hobby income if you rely on the income, have profited from the activities for at least a few years, or expect to make future profits. 

If there's any doubt as to whether your income is considered a hobby or business, consult a tax professional or use the best tax software you can afford.

Claiming too much in deductions

JohnKwan/Adobe getting refund from the income tax

Claiming too many deductions can trigger an audit. Your return could become flagged if you claim more deductions than is typical or if your deductions seem disproportional to your income. 

For example, if you claim to have made charitable deductions that were half your income, the IRS will likely become suspicious.

Tracking your expenses and contributions and keeping your receipts can protect you if the IRS questions your costs. You should never write off expenses that you can’t prove.

Resolve $10,000 or more of your debt

Credit card debt is suffocating. It constantly weighs on your mind and controls every choice you make. You can end up emotionally and even physically drained from it. And even though you make regular payments, it feels like you can never make any progress because of the interest.

National Debt Relief could help you resolve your credit card debt with an affordable plan that works for you. Just tell them your situation, then find out your debt relief options.1

How to get National Debt Relief to help you resolve your debt: Sign up for a free debt assessment here. (Do not skip this step!) By signing up for a free assessment, National Debt Relief can assist you in settling your debt, but only if you schedule the assessment.

Try it

Having a foreign bank account

(JLco) Julia Amaral/Adobe businessman having a phone call at his office desk

Having assets in foreign countries puts you at an increased risk of an IRS audit. But tax evasion has serious consequences, so it’s important to report these assets even though they might result in an audit.

According to the IRS, the Foreign Account Tax Compliance Act (FATCA) requires certain foreign institutions to report assets. So even if you fail to report the assets, that doesn’t mean the IRS won’t know about them.

Reporting a significant change in income

globalmoments/Adobe stressed woman worrying about financial debt

When your income changes significantly, whether as an increase or decrease, It could cause concern with the IRS. 

While income that has decreased dramatically might indicate a taxpayer hiding some income, increased income can also create a greater audit risk. Returns for high-income earners also take more time to process.

If you didn't receive tax forms for payments in cash, you still need to report this income on your tax return. Keeping records and receipts of payments will help you prove your income if the IRS questions it.

Estimating business expenses

DanRentea/Adobe family restaurant owners discussing finance

When possible, you should claim expenses as their exact amounts rather than estimating and rounding off. 

An excess of expenses ending in rounded increments could result in an audit or the IRS questioning if your business exists.

It’s a good idea to get receipts for expenses, even when you pay in cash. This will help you keep track of the exact dollar amounts for all your expenses. If you ordered something online, be sure to download your invoice.

Large charitable donations

Looker_Studio/Adobe man holding money jar

When you report charitable donations that seem very high compared to your income, the IRS might question their legitimacy. For example, if you make $30,000 per year, donating $10,000 seems an unlikely scenario.

Certain charitable gifts are also not deductible, such as gifts to an individual. When attending a charity event, only the amount donated above the fair market value of the item or event is considered deductible.

Combining business and personal expenses

Charnchai saeheng/Adobe investors working on desk office and use tablet to check tracking cost

You can only deduct expenses for your business. That means car repairs for your individual vehicles don't qualify. 

Personal laptops or other supplies you use for personal purposes don't count as business expenses, nor can you count taking friends out to dinner as entertaining clients.

It isn’t difficult to mix up personal and business expenses when using the same credit card or bank account for both purposes. Having separate credit cards and/or bank accounts can help you better track expenses and keep them separate.

Bottom line

insta_photos/Adobe female employee holding bookkeeping documents

Tax laws are constantly changing, and a change in your financial circumstances could make the tax return process even more complex. 

For instance, if you’ve made some smart money moves to build wealth and you now make more than you used to, your higher income will come with a higher tax bill.

No one likes audits, but the good news is that reporting accurately and having receipts to back up what you report can help you avoid them.

Choice Home Warranty Benefits

  • First month free
  • Protection for unexpected expense
  • 24/7 claims hotline
  • Network of over 15,000 technicians

Author Details

Katelyn Washington Katelyn Washington is a writer with a passion for finance and business. She put herself through business school as a single mother of three and has had pieces commissioned by national magazines. When she’s not writing, she enjoys spending time with her family and editing manuscripts for indie authors.

Want to learn how to make an extra $200?

Get proven ways to earn extra cash from your phone, computer, & more with Extra.

You will receive emails from FinanceBuzz.com. Unsubscribe at any time. Privacy Policy

  • Vetted side hustles
  • Exclusive offers to save money daily
  • Expert tips to help manage and escape debt