How to Handle Mortgage Tax Deductions During and After Divorce

Who Can Claim Mortgage Interest and Property Tax Deductions?

Mortgage interest and property tax deductions can reduce taxable income, but eligibility is not automatic. The IRS generally requires that you have an ownership interest in the property, are legally liable for the mortgage, and actually pay the mortgage interest or property taxes. Simply living in the home or being named in a divorce settlement does not automatically qualify you for the deduction.

During marriage, if you filed jointly, both spouses benefited from the deduction. Once you separate or divorce, tax treatment depends on:

• Filing status (married filing jointly, married filing separately, head of household, or single)
• Who has an ownership interest in the property (on the deed)
• Who is liable for the mortgage
• Who actually pays the mortgage and property taxes
• Whether you itemize deductions or take the standard deduction

These factors interact in ways that are not always intuitive, and the answer can change depending on timing and how the divorce settlement is structured.

How Filing Status Affects Mortgage Deductions

Your filing status determines your standard deduction amount and tax brackets. For 2024, the standard deduction for married filing jointly is $29,200, but only $14,600 for married filing separately or single, and $21,900 for head of household.

If your mortgage interest, property taxes, and other itemized deductions do not exceed your standard deduction, itemizing provides no tax benefit. This is especially important after divorce, when you may be filing as single or head of household and your standard deduction is lower than it was when married.

Before assuming you will benefit from mortgage or property tax deductions post-divorce, review your anticipated filing status, income, and total itemizable expenses with a CPA.

During Separation: Who Claims the Deduction?

If you are still legally married but separated, you may file jointly or separately. If you file jointly, mortgage interest and property taxes are typically deducted on the joint return regardless of who paid them.

If you file separately and both spouses remain on the deed and mortgage:

• The spouse who pays the mortgage interest may be able to deduct it if they are liable for the debt and have an ownership interest
• If only one spouse pays but both are liable and both own the property, allocation may be required
• State law and how the property is titled (joint tenants, tenants in common, tenants by the entirety) may affect treatment

Some divorcing couples negotiate who will claim the deduction during the separation period as part of their temporary or final settlement. This should be documented clearly and reviewed by both a family law attorney and a CPA.

After Divorce: Who Claims the Deduction?

Once the divorce is final, the spouse who owns the home, is liable for the mortgage, and pays the mortgage and property taxes typically claims the deduction.

Common scenarios include:

One Spouse Keeps the Home and Refinances

If you are awarded the home and refinance the mortgage in your name alone, you are the sole owner and borrower. You may claim the mortgage interest and property tax deductions if you itemize and meet IRS requirements.

The other spouse, no longer on the deed or mortgage, cannot claim the deduction.

One Spouse Keeps the Home but Cannot Refinance Immediately

If you are awarded the home but your ex-spouse remains on the mortgage temporarily, you are typically the owner (via deed) and the one making payments. You may still be eligible to claim the deduction if you are also liable on the mortgage or can demonstrate an equitable interest and payment.

However, if your ex-spouse remains the only legal borrower and you are making payments on their behalf, deduction eligibility may be unclear. This should be reviewed with a CPA and addressed in the settlement agreement.

One Spouse Keeps the Home but the Other Remains on the Deed

If one spouse is awarded exclusive possession and makes all payments, but both remain on the deed (for example, pending a future refinance or sale), the IRS may view both as owners. The spouse making payments and meeting the liability requirement is generally the one who can claim the deduction, but this can be complex.

Some settlement agreements specify which spouse may claim the deduction during this interim period. This should be drafted carefully with input from both legal and tax professionals.

What If You Pay Your Ex-Spouse's Mortgage as Part of Support?

If your divorce settlement requires you to pay the mortgage on a home your ex-spouse was awarded, you generally cannot claim the mortgage interest deduction because you do not have an ownership interest in the property.

However, if the payment is structured as alimony (spousal support) under pre-2019 rules, or if you retain an ownership interest, tax treatment may differ. This is a complex area that requires coordination between your attorney and CPA.

Property Taxes and Divorce

Property tax deductions follow similar rules: the person who owns the property and pays the taxes typically claims the deduction. New Jersey property taxes are significant, so this deduction can be valuable.

If both spouses remain on the deed and one pays the taxes, the settlement should specify who claims the deduction or how it is allocated. After divorce, the spouse who owns and pays generally claims the deduction.

Refinancing, Quitclaim Deeds, and Deduction Changes

When you refinance or transfer the deed, deduction eligibility changes:

• Refinancing in your name alone: You become the sole owner and borrower, and you claim the deduction.
• Signing a quitclaim deed: You give up ownership. You can no longer claim the deduction, even if you remain on the original mortgage.
• Removing your name from the mortgage: If you are no longer liable and no longer own the home, you cannot claim the deduction.

These changes should be reflected in your tax filings for the year they occur. Notify your CPA when ownership or mortgage liability changes.

Tax Reform and Mortgage Interest Deduction Limits

Under current tax law, mortgage interest is deductible on loan balances up to $750,000 for loans taken out after December 15, 2017 ($1 million for earlier loans). If you refinance during or after divorce, the new loan may be subject to the $750,000 limit.

Additionally, the Tax Cuts and Jobs Act increased standard deductions significantly, which means fewer taxpayers benefit from itemizing. Before structuring your divorce settlement around anticipated tax deductions, confirm with a CPA that you will actually benefit from itemizing post-divorce.

Settlement Agreement Considerations

Your divorce settlement or marital settlement agreement should address:

• Who will claim mortgage interest and property tax deductions during any transition period
• How deductions will be allocated if both spouses remain on the deed or mortgage temporarily
• Whether refinancing or quitclaim deadlines are tied to tax-year planning
• Whether any payments between spouses are intended to be deductible or taxable

These provisions should be drafted with input from both your attorney and your CPA to avoid unintended tax consequences.

Timing and Tax-Year Planning

The timing of your divorce, home sale, refinance, or deed transfer can affect your taxes. For example:

• Finalizing divorce in December versus January changes your filing status for the entire tax year
• Refinancing or selling before year-end may affect deduction amounts and capital gains treatment
• Making a final mortgage payment or property tax payment before or after a certain date may shift deduction eligibility

Discuss timing with your attorney, CPA, and mortgage professional to coordinate deadlines and tax-year planning.

Common Mistakes

• Assuming you can claim the deduction because you live in the home or were awarded it in the divorce
• Failing to address deduction allocation in the settlement when both spouses remain on the deed or mortgage temporarily
• Not updating your CPA when ownership, mortgage liability, or payment responsibility changes
• Structuring settlement terms based on assumed tax benefits without confirming them with a CPA
• Filing taxes without coordination between both spouses' CPAs, leading to duplicate or missed deductions

Who Should Be Involved

Mortgage interest and property tax deductions during and after divorce involve multiple professionals:

• Family law attorney: Ensures settlement language addresses deduction allocation, ownership, liability, and timing
• CPA or tax professional: Reviews filing status, itemization, deduction eligibility, and tax-year planning
• Certified Divorce Financial Analyst (CDFA) or financial advisor: Models after-tax cash flow and compares settlement scenarios
• Mortgage professional: Explains how refinancing or loan modifications affect mortgage structure and interest paid

Coordination among these professionals helps ensure that tax treatment aligns with the settlement and that you avoid surprises at tax time.