If you own a home with a mortgage, you should receive an IRS form from your lender each year with information that is used to claim an itemized deduction for qualified residence interest. For 2016, that form should include additional information that could trigger unwanted attention from the IRS. Here's what you should know about the IRS rules that apply to home mortgage interest deductions and the changes in the IRS mortgage interest reporting form.
IRS Rules for Deducting Home Mortgage Interest
Unlike most other types of personal interest, home mortgage interest that meets the definition of "qualified residence interest" can be claimed as an itemized deduction on your federal income tax return. Here's a closer look at the terminology underlying this deduction.
A qualified residence includes your principal residence and up to one additional personal residence. If you own two or more additional residences, you can specify which one is treated as the second residence for each tax year for the purpose of applying the qualified residence interest rules.
Qualified residence interest is defined as interest on up to $1 million of "acquisition debt" plus interest on up to $100,000 of "home equity debt."
Acquisition debt is debt that is:
Home equity debt is debt (other than acquisition debt) that is secured by a qualified residence. Unlike acquisition debt, the proceeds from home equity debt can be used for any purpose without affecting the deductibility of the interest under the regular tax rules. However, interest on home equity debt is deductible under the alternative minimum tax (AMT) rules only to the extent the debt proceeds are used to acquire, construct or substantially improve a qualified residence.
Important note: If you're married and file separately from your spouse, you can deduct half of the eligible mortgage interest paid on your separate returns.
Basic Reporting Requirements
By law, home mortgage lenders must provide certain information each year to borrowers on Form 1098, "Mortgage Interest Statement." The IRS also receives a copy of this form, which includes the following information:
The IRS also may require additional information to be reported on Form 1098. For instance, IRS regulations require Form 1098 to include the borrower's taxpayer identification number (TIN), which is the borrower's Social Security Number if he or she is a citizen.
Recent Legislation Adds New Requirements
For Forms 1098 issued to payers after December 31, 2016, the Surface Transportation and Veterans Health Care Choice Improvement Act of 2015 added the following new information reporting requirements:
Home mortgage lenders must report the amount of the outstanding mortgage principal as of the beginning of the calendar year for which the Form 1098 is provided. Knowing the outstanding mortgage principal balance allows the IRS to more easily identify taxpayers who attempt to deduct interest on loan balances above the combined $1.1 million limit for acquisition debt and home equity debt.
Knowing the address of the property securing the mortgage allows the IRS to more easily identify taxpayers who attempt to claim mortgage interest deductions for more than two residences.
Effect on 2016 Tax Returns
Your mortgage lender should have included this additional information on the 1098 forms that were issued to you earlier this year. Those forms report information for calendar year 2016, and the IRS can use the additional information to check home mortgage interest deductions claimed on your 2016 federal income tax return. Those deductions present a potentially enticing audit target, because they cost the federal government over $300 billion of tax revenue each year.
Based on the additional information reported on your Form 1098 for 2016, the IRS will know if you claim mortgage interest deductions for more than two residences or interest deductions for more than $1.1 million of combined acquisition debt and home equity debt. These issues could trigger an audit — and result in an unfavorable outcome.
You also may raise a red flag if the amount of your qualified residence interest deduction differs from the combined mortgage interest reported on your Form(s) 1098. This sometimes legitimately happens if, for example, you have more than $1.1 million of combined acquisition debt or own more than two homes.
Get It Right
The bottom line is that the IRS now has the information to monitor qualified residence interest deductions more closely than in previous years. So, it's important to understand the rules and calculate your deduction carefully.
Your tax advisor can help you comply with the IRS rules, including amending previous returns that may have been filed with incorrect information. Although the rules on qualified residence interest may seem straightforward, there are some lesser-known nuances that could affect the amount you can write off.
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