Unmarried Homeowners: 3 Steps To Claim Your House On Taxes

Navigate tax deductions for unmarried couples who own a home together.

By Medha deb
Created on

Unmarried Homeowners: How Do You Claim Your House on Your Taxes?

Buying a home with a significant other without being married can be one of the most complex financial decisions you’ll face. While the process of purchasing a property together is challenging enough, the tax implications can add an extra layer of complexity when it comes time to file your return. Unlike married couples who file jointly and can more easily navigate homeownership tax benefits, unmarried couples must carefully plan their tax strategy to ensure they’re claiming the right deductions and maximizing their financial benefits.

The good news is that unmarried homeowners aren’t left without options. However, they do need to understand the rules, make deliberate choices about who claims what, and potentially seek professional guidance. This comprehensive guide walks you through the key considerations and strategies for claiming tax deductions when you own a home but aren’t married.

Understanding Your Tax Situation as Unmarried Homeowners

When you and your partner purchase a home together without being married, you face a unique set of tax circumstances. Since unmarried people file their taxes separately as individuals, the way you claim homeownership deductions differs significantly from married couples filing jointly. This means you’ll need to carefully coordinate which partner claims which deductions to maximize your tax benefits and avoid any conflicts come tax time.

The key is understanding that only one person is typically eligible for mortgage interest tax deductions, and similar restrictions apply to other homeowner benefits. This doesn’t mean you’re locked into a single option, but rather that you need to make strategic decisions based on your individual circumstances and income levels.

Step One: Deciding Who Claims the House

The first and most critical decision unmarried homeowners must make is determining who will claim the house on their tax return. This choice forms the foundation for all other deduction decisions and requires careful consideration of your specific situation.

According to tax planning guidance, the primary consideration should be who is deriving income from the house. This includes situations where:

  • One partner rents out a portion of the property
  • One or both partners work from home
  • Either partner runs a business from the residence
  • The home generates rental income in any form

If one of you is generating income from the house, that person will typically want to claim the home so they can write off related deductions like depreciation against that income. This strategy allows the income-generating partner to reduce their taxable income through legitimate business deductions.

For couples sharing home office or business space, there’s a middle-ground option: you can each take the simplified home office deduction, allowing both of you to write off up to $1,500 each for your respective work spaces. This option eliminates the need to choose one person to claim the entire home while still providing valuable tax benefits to both partners.

The Permanence of Your Choice

One critical caveat: once you decide who will claim the house, you’re essentially locked into that decision. You cannot change your mind and have the other person claim it next year simply because it might be more advantageous. This permanence underscores the importance of thinking carefully about the right option for your particular case before making your initial tax filing decision.

Step Two: Understanding Deduction Allocation

If you and your partner are each claiming a portion of the home, you’ll need to decide who deducts what expenses. This step involves understanding the various deductions available to homeowners and strategically allocating them between the two of you.

Key Homeownership Deductions

The primary tax deductions available to unmarried homeowners include:

  • Mortgage Interest Deduction: Interest paid on your home loan (only if itemizing deductions)
  • Property Tax Deduction: Real estate taxes paid to state and local governments
  • Mortgage Insurance Deduction: Private mortgage insurance (PMI) premiums paid
  • Home Office Deduction: If you use part of your home for business purposes
  • Depreciation: If you rent out a portion of your home

The Standard Deduction vs. Itemized Deductions

A critical factor in your deduction strategy is understanding whether itemizing deductions makes financial sense for you. For the 2024 tax year, single taxpayers are entitled to a standard deduction of $14,600. This means that unless your combined itemized deductions exceed this amount, you’re better off taking the standard deduction rather than itemizing each deduction individually.

This reality means that for many unmarried couples, the mortgage interest and property tax deductions may not provide any actual tax benefit if their total itemized deductions don’t exceed the standard deduction threshold. However, if you have significant deductions that do exceed this amount, the strategy of who claims what becomes much more important.

Strategies for Allocating Deductions

Tax professionals recommend several strategies for unmarried couples to maximize their deduction benefits:

StrategyDescriptionBest For
Split 50/50Each partner claims half of mortgage interest and property taxesPartners with similar incomes; simplicity
Highest Earner Claims AllOne partner claims all deductions to maximize their benefitSignificant income disparity; maximizing tax savings
Lower Earner Claims AllLower income partner claims all deductionsSpecific tax bracket optimization
Each Partner Claims Their PortionSplit based on actual ownership percentages in the deedUnequal ownership stakes in the property

If splitting the deductions 50/50 results in totals that don’t exceed each person’s standard deduction, you’ll likely receive the same tax benefit regardless of how you allocate them. In such cases, experts recommend splitting the deductions 50/50 if you’re planning to get married while still owning the house, as this provides a clear record of equal contribution to the property.

The State and Local Tax (SALT) Advantage

For unmarried couples, there’s a unique tax advantage that married couples don’t enjoy. The state and local tax (SALT) deduction—which includes property taxes—is limited to $10,000 annually for both single taxpayers AND for those filing married jointly. However, since you file separately as unmarried individuals, each of you can deduct up to $10,000 of SALT, meaning your combined household can potentially deduct up to $20,000 in state and local taxes. This represents a significant advantage for unmarried couples over their married counterparts, particularly in high-tax states.

Special Considerations for Unmarried Homeowners

Income-Generating Properties

If you’re renting out a portion of your home or using part of it as a rental property, the partner claiming the rental income should be the one claiming associated deductions like depreciation and rental-related expenses. This ensures proper allocation of income and expenses on the relevant tax schedules.

Home Office Deductions

For unmarried couples where one or both work from home, each partner can claim the simplified home office deduction of up to $1,500 per year. This option provides a straightforward way to claim benefits without complex calculations or documentation requirements. Simply multiply your eligible home office square footage by $5 per square foot (up to 300 square feet) to calculate your deduction.

Primary Residence Status

Both partners can claim the primary residence status for the home if it’s truly the primary residence for both of you. However, this becomes more complex if you maintain separate residences or if only one partner actually lives in the home. Ensure your tax filing accurately reflects the reality of your living situation.

Step Three: Knowing When to Call In Professional Help

Tax professionals who advise unmarried couples emphasize the importance of seeking expert guidance. While you can certainly research and attempt to navigate this on your own, the complexity of allocating deductions, determining the best filing strategy, and ensuring compliance with tax laws makes professional help a worthwhile investment.

Why an Accountant Makes Sense

An experienced accountant or tax professional can:

  • Analyze your specific income and deduction situation to identify the best strategy
  • Calculate whether itemizing deductions provides more benefit than taking the standard deduction
  • Help you decide who should claim which deductions based on your tax brackets
  • Ensure you’re maximizing SALT deduction advantages available to unmarried filers
  • Provide documentation and support for your allocation decisions
  • Help prevent conflicts between partners over tax filing decisions
  • Identify other deductions or credits you might qualify for

Beyond the tax optimization benefits, having a professional third party can provide an objective mediator when partners disagree about how to file or allocate deductions. As tax advisors note, “No matter how strong the relationship, sometimes it’s worth paying someone else to be a mediator/parent/adult.” The cost of professional tax preparation—typically between $150 and $500—is often far less than the tax savings you might achieve through proper planning.

Documentation and Record-Keeping

Regardless of how you decide to allocate your homeownership deductions, proper documentation is essential. Keep records of:

  • The deed to your property and ownership percentages
  • Mortgage statements showing interest paid and property taxes
  • Property tax bills and receipts
  • PMI payment receipts
  • Any written agreement between you and your partner about deduction allocation
  • Home improvement receipts and documentation
  • Home office measurements and business use documentation

Having clear documentation protects you in case of an IRS audit and ensures both partners understand and agree upon the allocation of deductions. This is particularly important if your relationship circumstances change or if one partner leaves the home.

Frequently Asked Questions (FAQs)

Q: Can both unmarried partners claim the mortgage interest deduction?

A: Only one person is eligible for the mortgage interest tax deduction since unmarried people file their taxes separately. However, you can split the deduction between you, or one partner can claim it all, depending on which provides the greater tax benefit. You could also each claim the simplified home office deduction if you both work from home.

Q: What if our mortgage is in both names but we want one person to claim the deduction?

A: This is allowed as long as you both agree and can document your arrangement. The person claiming the deduction should be the one making the mortgage payments or have a clear ownership/payment agreement. Consult with a tax professional to ensure you’re handling this correctly.

Q: Do we have an advantage over married couples when it comes to tax deductions?

A: Yes, in one significant way: SALT deductions. As unmarried filers, you can each deduct up to $10,000 in state and local taxes (including property taxes), allowing a household combined deduction of up to $20,000. Married couples filing jointly are limited to $10,000 combined.

Q: What happens if we get married later? Do we need to adjust our deductions?

A: If you marry, you’ll file jointly going forward, which changes your tax situation significantly. The permanent nature of your initial deduction decisions means you may want to consult with a tax professional about adjusting your strategy in the year you marry.

Q: Is it better to have one person own the entire home instead of both owning it?

A: This depends on your specific circumstances, relationship status, and financial goals. Having both partners on the deed provides legal protection and ensures both have ownership rights, but having only one partner own it can simplify tax filing. Consult with both a tax professional and a real estate attorney before purchasing.

Q: Can we change our deduction allocation strategy each year?

A: No. Once you decide who will claim the house and how deductions will be allocated, you generally cannot change this arrangement year to year. This is why the initial decision is so important.

Q: What if our total itemized deductions don’t exceed the standard deduction?

A: If your combined mortgage interest and property taxes don’t exceed $14,600 (the 2024 standard deduction for single filers), you won’t receive a tax benefit from itemizing. In this case, both of you should claim the standard deduction regardless of how you allocate the mortgage-related expenses.

Taking Action on Your Homeownership Tax Strategy

Unmarried homeownership presents both challenges and opportunities when it comes to tax deductions. The complexity of deciding who claims what, combined with the permanence of those decisions, makes it essential to approach this strategically and thoughtfully. Before filing your first tax return as unmarried homeowners, take the time to:

  1. Review your individual income levels and tax brackets
  2. Calculate your total expected itemized deductions
  3. Compare different allocation strategies to see which provides the most tax benefit
  4. Consider consulting with a tax professional to optimize your specific situation
  5. Document your decision and ensure both partners understand and agree with the arrangement
  6. Keep detailed records of all mortgage payments, property taxes, and related expenses

While the tax implications of unmarried homeownership may seem daunting, armed with the right information and potentially professional guidance, you can confidently navigate this aspect of your financial lives and maximize the tax benefits available to you. The investment in understanding these rules and possibly consulting with a tax advisor can easily pay for itself through tax savings and avoided mistakes.

References

  1. Claiming Tax Deductions When You Own a Home But Aren’t Married — The Penny Hoarder. 2015-04-08. https://www.thepennyhoarder.com/taxes/tax-deductions-own-a-home-not-married/
  2. How to Buy a House With Someone You’re Not Married To — Experian. https://www.experian.com/blogs/ask-experian/how-to-buy-a-house-with-someone-youre-not-married-to/
  3. Tax Deductions for Unmarried Homeowners – Community Discussion — Intuit Tax Community. 2022. https://ttlc.intuit.com/community/tax-credits-deductions/discussion/my-partner-and-i-purchased-our-first-home-in-2022-we-are-unmarried-does-a-married-couple-post/00/2796877
  4. Buying a House With an Unmarried Partner — TLDR Accounting. https://www.tldraccounting.com/buying-a-house-unmarried-couple/
  5. What Does Head of Household Mean? — The Penny Hoarder. https://www.thepennyhoarder.com/taxes/what-does-head-of-household-mean/
  6. 2025 Tax Deductions: One ‘Big Beautiful Bill’ Updates Explained — The Penny Hoarder. https://www.thepennyhoarder.com/taxes/tax-deductions/
Medha Deb is an editor with a master's degree in Applied Linguistics from the University of Hyderabad. She believes that her qualification has helped her develop a deep understanding of language and its application in various contexts.

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