Tax Deductions Homeowners Forget to Claim: Maximize Your Savings

Written by NovaTools Editorial Review Published Last modified 11 min read Reviewed by Metehan Çetin, LPC

Discover the most commonly overlooked tax deductions for homeowners and learn how to keep more money in your pocket this tax season.

Introduction: Don't Leave Money on the Table

Homeownership comes with many financial benefits, and tax deductions are among the most significant. Yet every year, millions of homeowners miss out on valuable deductions that could save them hundreds or even thousands of dollars. Whether you're a first-time homeowner or a seasoned property investor, understanding these often-overlooked tax breaks can dramatically reduce your tax liability.

In this comprehensive guide, we'll explore the tax deductions that homeowners frequently forget to claim, explain the eligibility requirements, and show you how to maximize your tax savings. From mortgage interest to energy-efficient upgrades, these deductions can make a substantial difference in your annual tax bill.

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The Mortgage Interest Deduction

The mortgage interest deduction remains one of the most valuable tax benefits for homeowners, yet many fail to maximize this benefit. For mortgages taken out after December 15, 2017, you can deduct interest on up to $750,000 of mortgage debt ($375,000 if married filing separately). For mortgages originated before that date, the limit is $1 million.

What Qualifies as Deductible Interest?

Beyond your primary mortgage, several types of interest may qualify:

  • Home equity loan interest: If the loan was used to buy, build, or substantially improve your home, the interest may be deductible subject to the combined mortgage debt limits.
  • Second home mortgage interest: You can deduct interest on mortgages for a second home, provided the combined mortgage debt doesn't exceed the limits.
  • Points paid at closing: Mortgage points (prepaid interest) are generally deductible in the year paid or over the life of the loan, depending on your situation.

Don't Forget About Refinanced Mortgages

If you've refinanced your mortgage, points paid on the refinance are typically deducted over the life of the new loan. However, if you use part of the refinance proceeds for home improvements, a portion of the points may be immediately deductible.

Property Tax Deductions

State and local property taxes are deductible, but many homeowners don't fully understand the limitations. The Tax Cuts and Jobs Act capped the total state and local tax (SALT) deduction at $10,000 per year ($5,000 if married filing separately). This cap includes property taxes plus state income taxes or sales taxes.

Strategies for Maximizing Property Tax Deductions

If your property taxes exceed the SALT cap, consider these strategies:

  • Time your property tax payments to bunch deductions in alternate years
  • Consider appealing your property assessment if you believe it's too high
  • Keep detailed records of all property tax payments, including supplemental tax bills

Home Office Deduction

The home office deduction is frequently overlooked, especially by self-employed homeowners. To qualify, you must use part of your home exclusively and regularly for business purposes. This deduction can include a portion of your mortgage interest, property taxes, utilities, insurance, and depreciation.

Simplified vs. Regular Method

The IRS offers two methods for calculating the home office deduction:

  • Simplified method: $5 per square foot of home office space, up to 300 square feet (maximum $1,500 deduction).
  • Regular method: Calculate actual expenses based on the percentage of your home used for business. This often yields larger deductions but requires more detailed record-keeping.

Important: Employees working from home cannot claim the home office deduction, even if their employer requires remote work. This deduction is only available to self-employed individuals.

Mortgage Insurance Premium Deduction

If you pay private mortgage insurance (PMI) or mortgage insurance premiums (MIP) on an FHA loan, you may be able to deduct these premiums through 2025. This deduction is available for mortgages taken out after 2006, subject to income limitations. The deduction phases out for adjusted gross incomes between $100,000 and $109,000 ($50,000 and $54,500 if married filing separately).

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Energy Efficiency Tax Credits

The Inflation Reduction Act significantly expanded tax credits for energy-efficient home improvements. These credits can provide substantial savings while reducing your environmental footprint.

Residential Clean Energy Credit

This credit covers 30% of the cost for installing qualified clean energy equipment, including:

  • Solar panels and solar water heaters
  • Wind turbines
  • Geothermal heat pumps
  • Battery storage systems
  • Fuel cells

The 30% credit is available through 2032, then gradually decreases to 26% in 2033 and 22% in 2034.

Energy Efficient Home Improvement Credit

This credit offers up to $3,200 annually for qualified improvements:

  • $1,200 for energy property costs (windows, doors, insulation, etc.)
  • $2,000 for qualified heat pumps, biomass stoves, and boilers

Medically Necessary Home Improvements

Home improvements made for medical reasons may qualify as deductible medical expenses. These include:

  • Installing ramps or widening doorways for wheelchair access
  • Adding lifts or elevators for medical necessity
  • Modifying bathrooms for accessibility
  • Installing railings or support bars

Note that only the amount exceeding any increase in your home's value is deductible. For example, if a $10,000 medical improvement adds $4,000 to your home's value, you can deduct $6,000 as a medical expense.

Home Sale Exclusion

When you sell your primary residence, you can exclude up to $250,000 of capital gains from taxation ($500,000 for married couples filing jointly). To qualify, you must have owned and used the home as your primary residence for at least two of the five years before the sale.

Partial Exclusion Exceptions

Even if you don't meet the two-year requirement, you may qualify for a partial exclusion if you sold due to:

  • A change in employment location
  • Health reasons requiring a move
  • Unforeseen circumstances such as divorce or natural disasters

Record-Keeping Tips for Homeowners

To maximize your deductions and defend them in case of an audit, maintain thorough records:

  • Keep all Form 1098 statements from your mortgage lender
  • Save receipts for all home improvements (needed for cost basis calculations)
  • Document the business percentage if claiming home office deductions
  • Photograph energy-efficient equipment installations with dates
  • Maintain records of property tax payments and assessment notices

Conclusion

Homeownership provides numerous tax advantages, but you must be proactive to claim them. By understanding these commonly overlooked deductions—from mortgage interest and property taxes to energy credits and home office expenses—you can significantly reduce your tax burden. Consult with a tax professional to ensure you're maximizing all available deductions for your specific situation, and use our tax calculator to estimate your potential savings.

Frequently Asked Questions

What is the mortgage interest deduction limit for 2025?

For mortgages taken out after December 15, 2017, you can deduct interest on up to $750,000 of mortgage debt ($375,000 if married filing separately). For mortgages taken out before that date, the limit remains $1 million ($500,000 if married filing separately).

Can I deduct property taxes on my federal return?

Yes, you can deduct up to $10,000 ($5,000 if married filing separately) of combined state and local income, sales, and property taxes. This cap applies to all state and local taxes combined, not just property taxes.

What home improvements qualify for energy tax credits?

The Residential Clean Energy Credit covers 30% of costs for solar panels, solar water heaters, wind turbines, geothermal heat pumps, and battery storage systems through 2032. The Energy Efficient Home Improvement Credit offers up to $3,200 annually for improvements like efficient windows, doors, insulation, and HVAC systems.

Can I deduct my home office expenses?

If you're self-employed and use part of your home exclusively for business, you can deduct home office expenses using either the simplified method ($5 per square foot, up to 300 square feet) or the regular method (actual expenses based on percentage of home used for business). Note: Employees working from home cannot claim this deduction.

Are closing costs tax deductible?

Some closing costs are deductible, including mortgage points (prepaid interest), property taxes paid at closing, and mortgage insurance premiums. Other costs like appraisal fees, title insurance, and attorney fees are not deductible but can be added to your home's cost basis for capital gains purposes when you sell.

Can I deduct mortgage insurance premiums?

Mortgage insurance premiums (PMI) are deductible through 2025 for mortgages taken out after 2006, subject to income limitations. The deduction phases out for adjusted gross incomes between $100,000 and $109,000 ($50,000 and $54,500 if married filing separately).

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