Can I Deduct Mortgage Interest on My Taxes?

A mortgage payment can be one of the largest bills in a household budget, but not every dollar of that payment creates a tax deduction. If you are asking, “can I deduct mortgage interest,” the short answer is yes, but only if you itemize deductions and meet the IRS rules for a qualifying home and loan.

For many homeowners, the bigger question is whether the deduction actually lowers their tax bill. The mortgage interest deduction competes with the standard deduction, which is large enough that many taxpayers no longer benefit from itemizing. Knowing the difference before you file can help you avoid extra paperwork that does not produce a tax savings.

Can I Deduct Mortgage Interest If I Itemize?

Mortgage interest is generally deductible on Schedule A, Itemized Deductions, when the debt is secured by a qualified home. A qualified home can be your main home or one second home, such as a vacation property. The home may be a house, condominium, cooperative apartment, mobile home, houseboat, or similar property with sleeping, cooking, and toilet facilities.

The key word is interest. The principal portion of your payment is not deductible. Property taxes, homeowners insurance, HOA dues, and most closing costs are also separate expenses with different tax treatment.

To claim the deduction, your total itemized deductions must be more than your standard deduction. For the 2025 tax year, the standard deduction is $15,000 for single filers and married taxpayers filing separately, $30,000 for married couples filing jointly and qualifying surviving spouses, and $22,500 for heads of household. If your mortgage interest, state and local taxes, charitable gifts, and other itemized deductions do not exceed the amount available to you, claiming the standard deduction is usually the better choice.

This is why a homeowner can receive Form 1098 from a lender and still decide not to deduct mortgage interest on a federal return.

What Mortgage Debt Qualifies?

The IRS generally allows a deduction for interest on acquisition debt. This means the loan proceeds were used to buy, build, or substantially improve the home securing the loan. A traditional purchase mortgage is the clearest example.

For mortgages taken out after December 15, 2017, interest is generally deductible on up to $750,000 of qualified acquisition debt. The limit is $375,000 for married taxpayers filing separately. Older mortgages may qualify for the previous $1 million limit, or $500,000 for married filing separately, if they were grandfathered under the earlier rules.

The limit applies to the combined qualified debt on your main home and second home, not separately to each property. For example, a couple with $600,000 of qualifying debt on a primary residence and $300,000 on a vacation home may not be able to deduct all of the interest because their combined debt exceeds the applicable limit.

A refinance does not automatically ruin the deduction. Interest on refinancing debt can remain deductible up to the remaining balance of the old qualifying mortgage. However, if you borrow additional cash, the use of that extra money matters.

Home equity loan and cash-out refinance rules

Interest on a home equity loan, home equity line of credit, or cash-out refinance may be deductible only when the borrowed funds are used to buy, build, or substantially improve the home that secures the loan. Using home equity proceeds for credit card balances, a car, tuition, a wedding, medical bills, or a vacation does not create deductible home mortgage interest.

For example, borrowing $40,000 against your home to add a bathroom or replace the roof can qualify. Borrowing the same $40,000 to pay off personal debt generally does not. If part of the money was used for improvements and part was used personally, you may need to allocate the interest between deductible and nondeductible portions.

Keep invoices, closing disclosures, loan documents, and records showing how the funds were spent. These records can be especially useful after a cash-out refinance, when the lender’s form alone may not explain whether all interest qualifies.

How Form 1098 Helps You Claim the Deduction

Your mortgage lender will usually send Form 1098, Mortgage Interest Statement, if you paid $600 or more in mortgage interest during the year. The form commonly shows the interest you paid in Box 1, points paid on the purchase of a main home in Box 6, and your outstanding mortgage principal in Box 2.

Form 1098 is a starting point, not a guarantee that every amount shown is deductible. You still must determine whether you itemize, whether your debt is within the applicable limits, and whether the loan proceeds were used for qualified purposes.

You may have more than one Form 1098 if your loan was sold during the year or if you refinanced. Add the eligible interest from each statement, but be careful not to count the same interest twice. If you paid interest directly to an individual seller under seller financing, you may be able to claim a deduction even without a Form 1098, provided the debt is secured by the home and you have the lender’s name, address, and taxpayer identification number.

When Points Are Deductible

Points are prepaid mortgage interest. Whether you deduct them all at once or over time depends on the loan and the purpose of the home.

Points paid to obtain a mortgage for your main home may generally be fully deductible in the year paid if the loan was used to buy or build that home and the points meet IRS requirements. The points must be a standard local lending practice, calculated as a percentage of the loan amount, and clearly shown on the settlement statement.

Points paid on a refinance are usually deducted over the life of the loan rather than all in the refinance year. If you later pay off that refinanced loan early, you may be able to deduct the remaining undeducted points at that time. Rules can differ when refinance proceeds are used for home improvements, so retain the closing documents.

Situations That Often Cause Confusion

A second home does not have to be rented out to qualify, but rental use changes the calculation. If you rent the property for part of the year and also use it personally, the personal-use and rental-use rules may require you to divide expenses. Mortgage interest connected to rental activity may belong on Schedule E rather than Schedule A.

Interest on a reverse mortgage is usually not deductible as it accrues because you generally have not paid it yet. The interest may become deductible when it is actually paid, subject to the normal qualified-home and debt-limit rules.

Interest on a mortgage for land alone is not generally deductible as home mortgage interest if there is no qualifying home on the property. Likewise, interest on an unsecured loan used to buy a home does not qualify for the home mortgage interest deduction because the loan is not secured by that home.

Co-op owners can generally deduct their share of mortgage interest paid by the cooperative, along with interest paid on a loan secured by their ownership interest. The co-op should provide a statement with the relevant amounts.

A Quick Way to Decide Whether Itemizing Makes Sense

Before entering mortgage interest on your return, total your potential itemized deductions. Include qualifying mortgage interest, deductible state and local taxes up to the limit that applies for the tax year, charitable contributions, and eligible medical expenses above the applicable income threshold.

Then compare that total with your standard deduction. If itemizing is higher, mortgage interest may reduce your taxable income. If it is lower, take the standard deduction instead. You do not lose anything by having qualifying mortgage interest, but it may not change your federal tax result.

State income tax rules can be different. Some states use their own standard deduction and itemized deduction rules, so a deduction that does not help on your federal return could still matter on a state return.

Mortgage interest is worth tracking carefully, particularly in the early years of a loan when a larger share of each payment goes toward interest. Gather every Form 1098, keep records for refinances and home improvements, and compare itemizing with the standard deduction before filing. That small check can turn a familiar homeowner expense into a real tax benefit when the numbers work in your favor.