Mortgage Interest Deduction Eligibility: Who Gets to Deduct When Two Borrowers Are Involved? A Guide for Retired Individuals

Mortgage Interest Deduction Eligibility: Who Gets to Deduct When Two Borrowers Are Involved? A Guide for Retired Individuals

January 31, 2025·Aisha Khan
Aisha Khan

Managing your retirement savings and staying financially secure can feel overwhelming, especially when it comes to taxes. One key area to understand is the mortgage interest deduction, which can help you save money. But if you’re sharing a mortgage with someone else, like a partner or family member, things can get confusing. This guide will explain who can deduct mortgage interest, how to decide who should claim it, and why it matters for your retirement finances. Whether you’re co-owning a home or helping pay someone else’s mortgage, this article will give you clear, actionable answers to help you make smart decisions.

Who Can Deduct Mortgage Interest? Key Eligibility Rules

To claim a mortgage interest deduction, you must meet specific IRS rules. First, you must be legally obligated to pay the mortgage. This means your name should be on the loan agreement. If you’re not on the mortgage, you generally can’t claim the deduction, even if you’re paying the bills. (Yes, the IRS is strict about this!)

Second, you must be listed on the mortgage or the property deed. Co-ownership complicates things slightly, but as long as both names are on the mortgage, both parties can deduct their share of the interest. For example, if you and your spouse co-own a home, you can split the deduction based on who paid what.

Actionable Tip: If you’re buying a home with someone else, make sure both names are on the mortgage. This avoids headaches later when tax season rolls around.

couple signing mortgage documents

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Think of it like splitting a restaurant bill: if both of you are on the tab, you both get the rewards (or in this case, the tax benefits).


Who Should Deduct the Mortgage Interest: Partners and Co-Borrowers

When two borrowers are involved, deciding who claims the deduction depends on who paid what. The IRS allows you to deduct mortgage interest based on your contribution to the payments. For example, if you paid 60% of the mortgage, you can deduct 60% of the interest. Your co-borrower would deduct the remaining 40%.

It’s also important to understand the difference between being a co-owner and a co-signer. A co-owner has a legal stake in the property, while a co-signer is just helping someone else qualify for the loan. If you’re a co-signer and not paying the mortgage, you can’t claim the deduction.

Example: Let’s say you and your sibling co-own a vacation home. If you pay 75% of the mortgage, you can deduct 75% of the interest. Your sibling would deduct the other 25%.


Special Scenarios: Divorced Couples, Family Members, and Non-Listed Payers

Retired individuals often face unique situations that make mortgage interest deductions tricky. For example, if you’re divorced, your ex-spouse can’t claim the deduction unless they’re listed on the mortgage and paying it. If you’re paying your parents’ mortgage, you can’t deduct the interest unless your name is on the loan.

What if you’re paying the mortgage but your name isn’t on it? Unfortunately, the IRS doesn’t allow you to claim the deduction in this case. Your name must be on the mortgage to qualify.

Actionable Tip: If you’re in a complex situation, like co-owning with family or navigating post-divorce finances, consult a tax professional. They can help you figure out the best way to handle deductions.

family discussing finances

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Think of it like a game of Monopoly: the rules are clear, but sometimes you need a referee (or a tax pro) to make sure everyone plays fair.


Maximizing Your Mortgage Interest Deduction: Tips for Retired Individuals

Retirees need to make every dollar count, and that includes maximizing tax benefits. Here are some practical tips:

  1. Keep Detailed Records: Save all your mortgage statements and receipts. The IRS may ask for proof of your payments.
  2. Understand the Limits: The IRS allows deductions on mortgage interest for loans up to $750,000 (or $1 million if the loan was taken out before December 15, 2017).
  3. Coordinate with Co-Borrowers: If you’re splitting the deduction, make sure both parties agree on the percentages and report them accurately.

Case Study: A retired couple saved over $1,000 in taxes by accurately splitting their mortgage interest deduction based on payment contributions. They kept detailed records of who paid what, making tax season a breeze.

retired couple reviewing financial documents

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Think of it like a team project: good communication and clear documentation lead to better results (and fewer headaches).

By following these guidelines, you can ensure you’re making the most of your mortgage interest deduction and keeping your retirement finances on track.

FAQs

Q: If my partner and I co-own a home but only one of us is on the mortgage, can we still split the mortgage interest deduction on our taxes, or does it have to go to the person whose name is on the loan?

A: The mortgage interest deduction can only be claimed by the person whose name is on the mortgage, even if both partners co-own the home. However, you may be able to allocate the deduction based on your ownership shares if you file jointly or meet specific IRS requirements.

Q: I’m helping my parents pay their mortgage, but my name isn’t on the loan. Can I deduct the mortgage interest on my taxes if I’m the one making the payments?

A: No, you cannot deduct the mortgage interest on your taxes if your name is not on the loan, even if you are the one making the payments. Only the person legally responsible for the debt (the borrower) can claim the mortgage interest deduction.

Q: My ex-husband and I still co-own our home, but he’s the only one paying the mortgage now. Who gets to claim the mortgage interest deduction, especially if we’re filing separately?

A: If you are both listed on the mortgage, you can each claim the mortgage interest deduction proportionally based on the amount you each paid. If only your ex-husband is paying the mortgage, he is the one entitled to claim the deduction, provided you are filing separately.

Q: If I’m paying the mortgage on a property I co-own with a friend, but my name isn’t on the mortgage, can I still deduct the interest, or does it have to go to the person whose name is on the loan?

A: Generally, only the person whose name is on the mortgage can deduct the interest paid on the loan, as the IRS requires the taxpayer to be legally obligated to repay the debt. If your name isn’t on the mortgage, you typically cannot claim the interest deduction, even if you are contributing to the payments.