Mortgage Interest Deductions 101: What You Should Know (2024)

If you don’t enjoy doing your taxes, you’re not alone. (Sometimes, it even feels feel like hot pokers under the fingernails.) But taxes can be fun when you understand how to make the best of your personal financial situations.

Savvy investors must understand the power of taking all of the deductions you can—legally, of course. These tax deductions canloweryour tax liability.

Related: 5 Steps to Successful Real Estate Accounting for Investing Newbies

What is the home mortgage interest deduction?

First, let’s define what a tax deduction is. Tax deductions are expenses you incur through the year that the IRS allows you to subtract from your taxable income. This actually lowers the amount of money you have to pay in taxes.

For homeowners, there can be some big deductions that come along with owning a home, such as the mortgage interest you pay. Bonus!

The mortgage interest deduction was designed to promote homeownership by allowing property owners to take a significant deduction. This itemized deduction allows a homeowner to deduct the interest they pay on a loan against their taxable income. You can deduct interest for:

  • Primary mortgages
  • Secondary mortgages
  • Home equity lines of credit (HELOCs)
  • Home equity loans.

The mortgage interest deduction can also apply if you pay interest on a condo, cooperative, mobile home, boat, or RV used as a residence.

Rules on rentals

There is a catch: The loan must be secured by principal residences, a.k.a a main home or second home that you use through a deed of trust, mortgage, or land contract. Essentially, you can’t deduct interest on your third, fourth, or fifth home—or any property you rent out.

In order to claim this deduction, you must use the property for more than 14 days out of the yearormore than 10% of the number of days it’s rented out at fair market value. (Whichever number is larger is the number you’ll need to use.) If you don’t meet this test, you can’t deduct the interest via Schedule A.

Now, if you have rental properties with mortgages, you can deduct the full mortgage interest as a supplemental income “loss” on Schedule E of your 1040 tax form.

What qualifies as a home?

For IRS purposes, a home is a house, condo, cooperative, mobile home, boat, or recreational vehiclethat has sleeping, cooking, and toilet facilities. Believe me, I’m still trying to get my tear-drop camper to qualify, but my CPA won’t go for it because it lacks a toilet!

Who can take the mortgage interest deduction?

In many cases, a homeowner can deduct all of their mortgage interest paid as long as they meet all of the requirements:

  • Date of the mortgage
  • Amount of the mortgage
  • How the proceeds are used

More on the rules and limits in a minute.

Mortgage Interest Deductions 101: What You Should Know (1)

Mortgage Interest Deductions 101: What You Should Know (2)

How can you take the deduction?

This is where the rubber meets the road. Home mortgage interest is reported on Schedule A of your 1040 tax form. Quite often, this single line-item deduction is what can help you exceed the standard deduction limit and allow you to pick up other Schedule A deductions.

If you have rentals with mortgages on them you can also deduct mortgage interest as well. You will just deduct this mortgage interest for your rentals on Schedule E (NOT Schedule A).

Related: How to Make $100k a Year with Fixer-Upper Rentals

What are the rules and limitations?

Prior to the 2017 Tax Cuts and Jobs Act, the maximum amount of debt eligible for the deduction was $1 million, and you could generally deduct interest on home equity debt of up to $100,000 ($50,000 if you’re married and file separately) regardless of how you used the loan proceeds.

Beginning in 2018, the limits changed and now the maximum amount of mortgage debt is limited to $750,000 if you are married filing jointly ($375,000 if you are married and file separately). Additionally, the loan must be used for building, purchasing, or improving your residence and it can be a primary mortgage, secondary mortgage, line of credit, or a home equity loan. In short: If you refinance or take out a home equity loan, no going out and purchasing a PS5 with that money.

However, if your mortgage existed before December 14, 2017, the IRS considers it grandfathered debt. You will receive the same tax treatment as under the old rules.

This is where it can be really helpful to bring in your accountant and make sure you meet the IRS rule that will allow you to take this deduction.

Mortgage interest deduction and refinancing

As stated before, you can deduct mortgage interest after a refinance, but the math starts getting tricky. Here’s a great statement from TurboTax on how refinances are treated.

“When you refinance a mortgage that was treated as acquisition debt, the balance of the new mortgage is also treated as acquisition debt up to the balance of the old mortgage. The excess over the old mortgage balance not used to buy, build, or substantially improve your home might qualify as home equity debt.

For tax years prior to 2018, interest on up to $100,000 of that excess debt may be deductible under the rules for home equity debt. Also, you can deduct the points you pay to get the new loan over the life of the loan, assuming all of the new loan balance qualifies as acquisition.”

If your head is swimming, don’t worry. So was mine when I first read it.

It’s that last statement you really need to pay attention to when refinancing. Essentially, you may be able to deduct the interest of up to $100,000 of the debt as well as 1/30th of the points each year, assuming it’s a 30-year mortgage.

When you sell or refinance again, you can then deduct all of the discount points not yet deducted—unless you refi with the same lender. In this case, you would add the points on the current loan to the old loan and deduct the points on a prorated basis over the life of the new loan.

If your head is still swimming (and don’t feel bad), work with an accountant to make sure you get this straight.

Related: 13 Books to Take Beginners From Zero to Real Estate Investing Hero

What records do you need to take the mortgage interest tax deduction?

With any tax-related item, you want to keep great records to support your claims. Like Rich Dad Advisor Tom Wheelright always says, “If you want to change your tax, you have to change your facts.”

When taking this deduction, it’s no different. Make sure to keep the following records on hand to document you are entitled to this deduction:

  • Copies of all Form 1098: Mortgage Interest Statementsthat your lender sends you to document how much mortgage interest you have paid throughout the year. You also want to document any deductible points and mortgage insurance premiums you paid as well.
  • Copies of all HUD closing statements from a purchase or refinance that show points that you paid (if any).
  • Information about the person who sold you the propertyif you purchased your home directly or used seller financing. This includes their name, address, and social security number. If you pay interest (and points) to them, you will want to document that as well.
  • Your federal tax returns from 2018 and afterso you can track the eligible interest and points you are deducting over the life of the mortgage.

Since you may be deducting mortgage points over the course of 30 years, keep these files on hand for the entire time you have the property.

When shouldn’t you deduct mortgage interest?

Now that you know about the mortgage tax deduction, its rules and limits, how to take it, and what supporting documentation it requires, is there a reason you wouldn’t want to take the deduction?

Maybe.

You see, the 2017 Tax Cuts and Jobs Act nearly doubled the standard deductions for taxpayers, making it unnecessary for many taxpayers to itemize their deductions on Schedule A. In 2020, the standard deduction for an individual is $12,400 on federal income taxes. For a couple married filing jointly, it’s $24,800.

Essentially, for a married couple, they would have to have a combined qualifying deductions of at least $24,800 to make it worth their while to forgo their standard deduction and itemize on Schedule A. Therefore, you wouldn’t want to take the deduction, as you would have a larger tax savings by just using your standard deduction.

However, if you can combine your qualifying mortgage interest deduction with other Schedule A deductions, you could exceed the standard deduction limit and potentially get larger tax savings. These deductions include:

  • State and local taxes
  • Medical and dental expenses
  • Charitable donations
  • Casualty and theft losses
  • All other itemized deductions limited to 2% of AGI
  • Foreign real estate taxes

Tax rules and limits change frequently. A qualified accountant is worth their weight in gold.

Note By BiggerPockets: These are opinions written by the author and do not necessarily represent the opinions of BiggerPockets.

Mortgage Interest Deductions 101: What You Should Know (2024)

FAQs

Mortgage Interest Deductions 101: What You Should Know? ›

You can deduct home mortgage interest on the first $750,000 ($375,000 if married filing separately) of indebtedness. However, higher limitations ($1 million ($500,000 if married filing separately)) apply if you are deducting mortgage interest from indebtedness incurred before Dec.

What is mortgage interest deduction for dummies? ›

The mortgage interest deduction allows homeowners to deduct a portion of the interest on their home loan from their taxable income. You'll have to itemize your return and the loan must be a secured debt with your property as collateral.

How do I calculate how much of my mortgage interest is deductible? ›

Divide the maximum debt limit by your remaining mortgage balance, then multiply that result by the interest paid to figure out your deduction. Let's consider an example: Your mortgage is $1 million. Since the deduction limit is $750,000, you'll divide $750,000 by $1 million to get 0.75.

How much money do you get back on taxes for mortgage interest? ›

You can deduct the mortgage interest you paid during the tax year on the first $750,000 of your mortgage debt for your primary home or a second home. If you are married filing separately, the limit drops to $375,000.

Is it worth claiming mortgage interest on taxes? ›

The mortgage interest deduction is a tax incentive for homeowners. This itemized deduction allows homeowners to subtract mortgage interest from their taxable income, lowering the amount of taxes they owe. Homeowners can also claim the deduction on loans for second homes providing that they stay within IRS limits.

Why is mortgage interest no longer tax-deductible? ›

If the loan is not a secured debt on your home, it is considered a personal loan, and the interest you pay usually isn't deductible. Your home mortgage must be secured by your main home or a second home. You can't deduct interest on a mortgage for a third home, a fourth home, etc.

Who gets the mortgage interest deduction when there are co-owners? ›

Mortgage interest is deductible for the person who paid it. If you paid the whole mortgage from an individual account, you get 100% of the deduction. If the mortgage is paid from a joint account, each spouse typically deducts 50%.

Is homeowners insurance tax-deductible? ›

Unfortunately, homeowners insurance premiums aren't tax deductible, unless the property creates a source of income.

Is reverse mortgage interest tax-deductible? ›

Reverse mortgage interest can be deducted only if the money was used to buy, build, or substantially improve the home. For example, if you used the loan proceeds to remodel a bathroom, you could deduct the interest, but only when you eventually pay off the loan.

Do you get a bigger tax return if you have a mortgage? ›

If you have a mortgage on your home, you can deduct your mortgage interest to reduce your total tax liability. If you purchased or refinanced your home recently, chances are that you have a relatively high interest rate.

How much can you get back from a 1098? ›

Thus, the maximum credit a taxpayer may claim per student is $2,500 per year. A family with multiple eligible students may claim this amount for each student.

Is car interest tax-deductible? ›

Interest paid on personal loans, car loans, and credit cards is generally not tax-deductible. However, you may be able to claim interest you've paid when you file your taxes if you take out a loan or accrue credit card charges to finance business expenses.

How does the mortgage interest deduction affect the economy? ›

The mortgage interest deduction (MID) provides parity with the tax treatment of interest expense associated with other forms of debt-financed investment, including financial assets and rental housing. The MID lowers the effective interest rate homebuyers pay, making homeownership accessible to more households.

Who qualifies for the mortgage interest credit? ›

Who Does the Mortgage Credit Certificate Program Serve? The MCC program serves low to moderate income borrowers, generally first‐time homebuyers who earn no more than the greater of their statewide or area median income. 82 percent of MCC borrowers in 2022 earned the area median income or below.

Is mortgage interest the only item you can deduct from income taxes as a homeowner? ›

The only costs you can deduct are state and local real estate taxes actually paid to the taxing authority and interest that qualifies as home mortgage interest. These are discussed in more detail later.

How is mortgage interest calculated? ›

How Is My Interest Payment Calculated? Lenders multiply your outstanding balance by your annual interest rate, but divide by 12 because you're making monthly payments. So if you owe $300,000 on your mortgage and your rate is 4%, you'll initially owe $1,000 in interest per month ($300,000 x 0.04 ÷ 12).

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