Who Claims the Mortgage Interest Deduction During a Texas Divorce?

In the year a Texas divorce happens, the mortgage interest deduction goes to whoever paid the interest and holds legal or equitable ownership in the home, not automatically to whoever keeps the house or whose name sits at the top of the loan. If both of you paid the mortgage that year, both of you can typically deduct your own share, even though the lender only sends out one Form 1098. And if the house sells partway through the year, the same rule applies up to closing day instead of running the full twelve months.

The Move Live Love TX Team is a husband-and-wife real estate team serving Houston and the surrounding areas, helping people sell a home during a divorce, a process they have both been through themselves.

Whoever Pays It Owns It, More or Less

The IRS lays this out in Publication 504, its guide for divorced and separated taxpayers: if you own a home jointly and you paid the mortgage interest, you deduct what you paid, and your spouse or former spouse deducts what they paid (per IRS Publication 504, Divorced or Separated Individuals). Ownership plus payment is the test, not who filed the paperwork first or who a court eventually names as the owner going forward.

Texas complicates the “whose name is on it” part in a way most states don’t. Because Texas is a community property state, a home bought during the marriage generally belongs to both spouses under state law even if only one name appears on the deed or the mortgage note. That community-property interest can help a spouse who isn’t on the loan document establish the ownership side of the IRS test, but the IRS still wants proof of payment. Owning half a house on paper and never touching a mortgage payment doesn’t earn a deduction.

There’s a narrower path for a spouse with no name on the note at all. Tax Court has allowed a deduction under what’s called equitable ownership, for someone who paid every mortgage payment, covered the taxes and insurance, and lived in the home as though they owned it. It’s fact-specific and not something to lean on without a CPA confirming it applies, but the door isn’t closed merely because a name is missing from a document.

The Cap Nobody Explains Right

Two separate limits get confused all the time. One is the debt-size cap: interest is deductible on up to $750,000 of mortgage debt for loans taken out after December 15, 2017, or up to $1 million for loans that predate that cutoff. Congress made the $750,000 cap permanent starting in 2026 under the One Big Beautiful Bill Act, so the wider $1 million limit some homeowners were expecting to see return this year never shows up, per H&R Block’s summary of the law’s homeowner provisions.

The other is a rule specific to divorce that catches people off guard: if you take on new debt to buy out your spouse’s share of the house, the IRS treats that debt as home acquisition debt, the same favorable category as the original purchase mortgage, as long as the divorce or legal separation is the reason for it (per IRS Publication 936, Home Mortgage Interest Deduction). A refinance to buy out an ex isn’t treated as a lesser class of debt merely because it happens years after the original purchase.

Splitting One 1098 Between Two Returns

This is where the paperwork gets messy, because one lender sends one form, and a divorce almost never lines up with a calendar year. The rule is proration based on who paid what, not a flat half-and-half assumption:

• Both of you keep paying your share of the mortgage after you separate: each of you deducts what you paid, tracked from your own bank records.
• One of you moves out but keeps paying your share: still deductible to you, even though you’re no longer living in the house.
• One of you stops paying and the other covers the whole payment: the paying spouse deducts the full year’s interest, assuming they hold ownership.
• The house sells partway through the year: whoever paid the interest before closing deducts it up to that date, and no further.

Whoever’s Social Security number isn’t on the 1098 still claims their share on Schedule A, along with a statement naming who the form was sent to. It’s a couple extra minutes with your tax preparer, not a reason to walk away from a deduction you earned.

When the House Sells Before You File

Peter came up through mortgage lending before he sold his first house, and when a divorcing client asks whether it’s worth arguing over who claims this year’s interest, he’s usually already run the math on whether itemizing even beats the standard deduction before the conversation gets that far. For 2026, the standard deduction is $32,200 for a married couple filing jointly and $16,100 for a single filer, and only somewhere between 10 and 14 percent of taxpayers itemize at all now that number has nearly doubled since 2018. A lot of divorcing homeowners spend real energy fighting over a deduction that wouldn’t change their tax bill either way.

This question is a different one from what most people mean when they ask about “taxes on the divorce house sale.” That’s usually a capital gains question, which we’ve answered separately in our piece on what happens to capital gains tax when you sell a house during a divorce in Texas. This one is about the deduction you claim every year you still own the home, sale or no sale, and for the fuller list of what taxes touch a divorce home sale beyond this one line item, our earlier piece on tax implications of selling your home during a divorce in Texas covers the rest.

The Move Live Love TX Team is a husband-and-wife real estate team serving Houston and the surrounding areas, helping people sell a home during a divorce, a process they have both been through themselves.

None of this is a reason to fight the last fight in your divorce over a line on Schedule A. Bring your actual 1098, your closing statement if the house sold, and a note on who paid what and when, to whoever prepares your taxes this year. Our Divorce Guide walks through the rest of what a divorce does to your finances and your next move, at your own pace, before you have to sit across from anyone about the numbers.

The Move Live Love TX Team is a husband-and-wife real estate team serving Houston and the surrounding areas, helping people sell a home during a divorce, a process they have both been through themselves.