The Tax Cuts and Jobs Act represents the most significant overhaul to the U.S. tax code in more than three decades, so millions of Americans are wondering which tax breaks they'll still be able to use in 2018, and which ones have been eliminated or will no longer be useful.
One of the most popular and lucrative tax breaks has been the deduction for mortgage interest, and while tax reform didn't eliminate the deduction, it did modify it. Plus, thanks to other parts of the new tax code, millions of Americans who pay mortgage interest may not be able to use the deduction. Here's a rundown of the revised mortgage interest deduction and what it could mean to you in 2018.
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The revised mortgage interest tax deduction
The Tax Cuts and Jobs Act kept the most widely used tax deductions, such as mortgage interest, in place for 2018 and beyond. However, some of these popular deductions have been slightly modified, and in unfavorable ways for taxpayers. The mortgage interest deduction is one of them.
Starting in 2018, mortgage interest on total principal of as much as $750,000 in qualified residence loans can be deducted, down from the previous principal limit of $1,000,000. For married taxpayers filing a separate return, the new principal limit is $375,000, down from $500,000.
It's worth pointing out that this limit only applies to new loans originated after 2017. Preexisting mortgage loans are grandfathered into the old limits.
For the purposes of the mortgage interest deduction, a "qualified residence" means the taxpayer's primary residence or second home (not an investment property). Additionally, the loan amount for which interest is deducted cannot exceed the cost of the home.
Like most of the tax changes that affect individuals, the revisions to the mortgage interest deduction are set to expire after the 2025 tax year.
Home equity loan interest deduction in 2018 and beyond
Perhaps the biggest change was the elimination of the separate provision that allowed Americans to deduct interest on home equity debt of as much as $100,000 of the principal, but this doesn't necessarily mean that you can't deduct home equity loan interest at all anymore.
Deductibility of home equity interest depends on what the home equity loan was used for. If the home equity loan was used to improve the taxpayer's home, the interest is still deductible, subject to the limits discussed in the previous section. On the other hand, if the home equity loan was used to cover personal expenses, it is no longer deductible.
Here's why. Although the home equity interest deduction has technically gone away, if the loan was used to substantially improve your home, it becomes a "qualified residence loan" under the IRS's interpretation of the new tax law. As the IRS's guidance puts it: "The limits ($750,000) apply to the combined amount of loans used to buy, build, or substantially improve the taxpayer's main home and second home."
Mortgage insurance is still deductible as well
If you put less than 20% down when buying your home, you most likely have to pay private mortgage insurance, or PMI.
The deduction for PMI has been set to expire several times and has been extended by Congress each time. And 2018 is no exception. Under the revised tax code, the PMI deduction has been extended for the 2018 tax year. Essentially, this allows you to treat your mortgage insurance premiums as interest for tax purposes.
In other words, if you pay $10,000 in mortgage interest during 2018 and also pay $2,000 in mortgage insurance premiums, you will have $12,000 in deductible mortgage interest for the tax year.
Fewer homeowners will qualify
Here's the potentially bad news: The mortgage interest deduction is still an itemized deduction, which means that in order for it to make sense to use, your itemized deductions (including mortgage interest) need to be greater than the standard deduction.
Now, in prior years, this has allowed millions of people to deduct their mortgage interest. However, the Tax Cuts and Jobs Act nearly doubled the standard deduction, and as a result, fewer people will be able to use the deduction.
Think of it this way: The 2017 standard deduction for a married couple was $12,700. So, a married couple that paid $15,000 in mortgage interest and also had $3,000 in charitable contributions and $6,000 in state and local taxes would have been able to reduce their taxable income by an additional $11,300 by itemizing. For 2018, the standard deduction for a married couple is $24,000, so this couple wouldn't be any better off by itemizing.
Traditionally, roughly 30% of taxpayers have itemized deductions each year. In 2018, early forecasts predict that this will drop to just 5%. In other words, 25% of the U.S. population will no longer be able to itemize deductions, and therefore won't be able to use the mortgage interest deduction in 2018.
The answer: It's still legal, but many people won't be able to use the deduction
The bottom line is that, yes, mortgage interest is still deductible. The limits have been lowered slightly for newly originated loans and home equity debt used for personal expenses is no longer deductible, but for the most part, the mortgage interest deduction remains intact. However, the consolidation of the personal exemption and standard deduction into one higher standard deduction will likely prevent millions of taxpayers from using it in 2018 and beyond.
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