What are the primary tax deductions available to homeowners, and how are they affected by the standard deduction and State and Local Tax (SALT) cap?
Homeowners can deduct mortgage interest paid on the loan and property taxes paid (subject to the SALT cap). Mortgage interest is deductible on loans up to $750,000 of principal (or $1 million for loans taken out before December 15, 2017). Property tax deductions, combined with state income taxes and sales taxes, are capped at $10,000 per year total (the SALT cap). Homeowners who deduct may lose the benefit of these deductions if the standard deduction is larger.
Key Takeaways
- Homeowners can deduct mortgage interest paid on the loan and property taxes paid (subject to the SALT cap).
- Mortgage interest is deductible on loans up to $750,000 of principal (or $1 million for loans taken out before December 15, 2017).
- Property tax deductions, combined with state income taxes and sales taxes, are capped at $10,000 per year total (the SALT cap).
- Homeowners who deduct may lose the benefit of these deductions if the standard deduction is larger.
- Rules vary by state; always learn your specific state's requirements.
Taxation on the Real Estate Exam
Tax deductions affect the net cost of homeownership by reducing taxable income. Many homebuyers overestimate the benefit of homeownership tax deductions without realizing that they must itemize deductions (rather than taking the standard deduction) to benefit from mortgage interest and property tax deductions. Real estate agents should understand these deductions to help buyers understand the true cost of homeownership and work with mortgage lenders and financial advisors who can explain the tax implications of different loan amounts and structures. Agents who can discuss these deductions credibly help set realistic expectations for buyers.
Understanding Taxation: Key Concepts
Mortgage interest is the largest tax deduction available to homeowners and can represent thousands of dollars in annual deductions for highly leveraged properties. The deduction applies to interest paid on mortgages secured by a principal residence or second home, including both first mortgages and home equity loans. The Tax Cuts and Jobs Act of 2017 limited mortgage interest deductions to interest on loan principal of up to $750,000 (or up to $1 million if the loan was taken out before December 15, 2017), meaning that borrowers with larger loans lose the deduction benefit on the excess. For example, a borrower with a $1 million mortgage at 6.5% interest would pay approximately $65,000 in annual interest, all of which is deductible (under the $750,000 limit). A borrower with a $2 million mortgage would pay $130,000 in interest but can deduct only $48,750 in interest (calculated on $750,000 of principal), making the remaining interest nondeductible.
Property tax deductions are another major deduction for homeowners and include annual property taxes and ad valorem taxes paid on real property. However, property taxes are subject to the State and Local Tax (SALT) cap, which limits combined deductions for state income taxes, sales taxes, and property taxes to $10,000 per year total. This cap fundamentally changed the tax benefit calculation for homeowners in high-tax states. For example, a California homeowner with $5,000 in property taxes and $30,000 in state income tax can deduct only $10,000 total (property taxes up to the cap), not the full $35,000. This cap disproportionately affects homeowners in high-income-tax and high-property-tax states and reduces the tax benefit of homeownership in those states. The SALT cap is scheduled to expire after 2025, unless extended by Congress, potentially restoring larger property tax deductions in future years.
Homeowners can only benefit from mortgage interest and property tax deductions if they itemize deductions on their tax return, which means their total itemized deductions exceed the standard deduction. For 2024, the standard deduction is $13,850 for single filers and $27,700 for married filing jointly. Homeowners with modest mortgages or property taxes may find that their itemized deductions (mortgage interest plus property taxes, plus charitable contributions and other deductible expenses) fall below the standard deduction, meaning they take the standard deduction and receive no tax benefit from homeownership. This is increasingly common after the 2017 tax law changes, affecting lower-income homeowners and those in areas with lower property values. Real estate professionals should encourage homebuyers to consult tax professionals about whether homeownership will generate tax benefits in their specific situations.
Taxation Rules by State
Each state has its own rules when it comes to taxation. Here are a few examples of how requirements differ:
California
California has high state income taxes (up to 13.3%) and high property taxes, making the SALT cap particularly impactful for California homeowners. Many California homeowners with moderate to high incomes will be constrained by the $10,000 SALT cap, forcing them to choose between deducting property taxes or state income taxes but not both fully. This reduces the tax benefit of homeownership compared to the pre-2017 tax law. California homeowners should work with tax professionals to optimize their deductions and may consider strategies like bunching deductions or S-corporation elections to reduce state income tax impact.
Texas
Texas has no state income tax, which makes the SALT cap less impactful for Texas homeowners. Texas homeowners deduct only property taxes, not state income taxes, so the SALT cap applies only to property taxes, sales taxes, and any other state/local taxes. This is advantageous compared to high-income-tax states. However, Texas property tax rates are among the highest in the nation, so the absolute amount of property taxes may still hit the SALT cap for high-value properties. Texas homeowners benefit from having state income taxes eliminated from the SALT cap calculation.
Florida
Florida has no state income tax, similar to Texas, making Florida advantageous for homeowners from a tax deduction perspective. Florida homeowners deduct only property taxes and applicable local taxes, not state income taxes. The SALT cap applies to property taxes and sales taxes only. However, Florida property taxes are moderate compared to some other states, and many Florida homeowners may not reach the $10,000 SALT cap. Retirees relocating from high-tax states often appreciate Florida's tax advantages, including no state income tax and moderate property taxes relative to other coastal states.
Remember that mortgage interest is deductible but limited to $750,000 principal ($1 million for older loans). Property taxes are subject to the $10,000 SALT cap combined with income and sales taxes. Homeowners must itemize to get these deductions; if the standard deduction is larger, they receive no tax benefit. The standard deduction is approximately $13,850 to $27,700 depending on filing status. Always advise buyers to consult a tax professional for their specific situation.
Rules vary across all 50 states
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