Is Mortgage Interest Still Deductible After Tax Reform?

Can you still deduct interest paid on your mortgage after tax reform? Find out the answer here so you don't miss out on any deductions.

A toy house sitting on top of tax return forms.
A toy house sitting on top of tax return forms.

Image Credit: Getty Images

The mortgage interest deduction is one of the most popular tax deductions, claimed by an estimated 32.3 million people in 2017. However, homeowners who plan to claim this valuable deduction need to be aware of the new rules put into place by the Tax Cuts and Jobs Act.

The Tax Cuts and Jobs Act passed in December 2017 and many of its provisions are in effect for tax years 2018 to 2025. The Act changed the rules for both deducting interest on primary mortgages as well as for deducting interest on home equity loans and home equity lines of credit.

If you own a home or are thinking about buying one, you need to know what changes were put into place and how they'll impact you.

The mortgage interest deduction got a new limit

One of the biggest changes that was made is that a new cap was introduced on the amount of mortgage debt you can have before your interest is no longer fully deductible.

Under the old rules, you could deduct mortgage interest on loans valued at up to $1 million. However, under the new rules, you can only deduct interest on loans valued at a maximum of $750,000.

This lower cap means that you will not be able to deduct the full amount of interest paid on your mortgage loan if you've purchased a home that requires a mortgage exceeding $750,000.

You can't take a deduction for mortgages on second homes anymore

Tax reform also changed the rules for mortgages on second homes. Under the old rules, if you purchased a second home, you could deduct the mortgage interest on it. You still were subject to the $1 million limit -- and that applied to total mortgage debt from both houses -- but as long as your two loans together didn't exceed $1 million, your interest would be tax deductible for the vacation property.

However, thanks to the changes made by the Tax Cuts and Jobs Act, mortgage interest is no longer deductible on a second home at all -- even if you are well under the new $750,000 limit on your primary home.

This is likely to make it more difficult for many families to purchase vacation properties, since losing the deduction entirely will make the cost of the mortgage on their secondary home much more expensive.

Deductions on home equity loans and lines of credit are more limited

Tax reform also changed the rules for deducting interest paid on home equity loans and home equity lines of credit.

Under the old tax rules, you were permitted to take a deduction on home equity debt no matter what purpose you borrowed the money for. Under the new rules, you're not permitted to take a deduction for interest costs on your home equity loan or home equity line of credit unless you have used the money from the loan to buy, build, or substantially improve the home that secures the mortgage debt.