8 tax audit red flags

It’s up to you whether to just pay the bill or challenge it if you think the IRS didn’t calculate it correctly.

2. Run a small business? Prove it. Very few people make a profit when they first start their own business. The IRS understands this… up to a point.

Report losses for three or more years and the agency will start to suspect your business is more of a hobby than a venture aimed at turning a profit, said former IRS tax attorney Garrett Gregory of Addison, Texas.

Such “hobby loss” cases may trigger a field audit, which is in-person and more onerous than a correspondence audit.

8. Be smart about mortgage interest: When you own a home with your spouse, your lender will send you and the IRS a Form 1098, which records how much mortgage interest you paid during the year.

But sometimes the form only includes the name and Social Security number of one spouse, DeFilipis said. Should that person die, and the surviving partner tries to claim the mortgage interest deduction, that may trigger a correspondence audit.

So have the lender change the name and Social Security number on the 1098 before filing. Or, if there’s not time for that before April 15, file for an extension and submit your return when you have an amended 1098 in hand.

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