Mortgage Tax Deductions: What Homeowners Can Claim in 2025

By Daniel Ramirez

Key Takeaways

  • Homeowners can deduct mortgage interest on loans up to $750,000 for married filing jointly ($375,000 for single filers) for mortgages originated after December 15, 2017.
  • State and local property taxes are deductible, but combined with other state and local taxes (SALT), they are limited to $10,000 ($5,000 for married filing separately).
  • Points paid at purchase can be fully deductible in the year paid if specific conditions are met, while points from a refinance must be amortized over the loan's life.
  • Additional tax benefits include deductions for home office expenses, and tax credits for eligible energy-efficient home improvements and clean energy installations.

Homeownership comes with significant tax advantages. Understanding these deductions can save you thousands each year.\n\n## Mortgage Interest Deduction\n\nThe mortgage interest deduction is one of the largest tax benefits for homeowners.\n\n### Current Limits\n- Married Filing Jointly: Deduct interest on up to $750,000 of mortgage debt\n- Single/Married Filing Separately: Up to $375,000\n- Grandfathered Loans (before 12/15/2017): Up to $1,000,000\n\n### What Qualifies\n- Primary residence mortgage interest\n- Second home mortgage interest\n- Home equity loan interest (if used for home improvement)\n\n## Property Tax Deduction\n\nYou can deduct state and local property taxes, but:\n- Combined SALT deduction limited to $10,000 ($5,000 if married filing separately)\n- Includes property taxes, state income taxes, and local taxes\n\n## Points Deduction\n\n### Points Paid at Purchase\nFully deductible in the year paid if:\n- Points are typical for your area\n- Used for primary residence\n- Paid directly (not rolled into loan)\n\n### Points Paid for Refinance\nMust be deducted over the life of the loan (amortized).\n\n## Home Office Deduction\n\nIf you work from home:\n- Simplified method: $5 per square foot (up to 300 sq ft)\n- Regular method: Actual expenses proportional to office space\n- Must be exclusive and regular business use\n\n## Energy Efficiency Credits\n\n### Residential Clean Energy Credit\n- 30% credit for solar panels, solar water heaters, battery storage\n- No annual maximum\n\n### Energy Efficient Home Improvement Credit\n- Up to $3,200 annually for qualified improvements\n- Includes insulation, windows, doors, HVAC\n\n## Standard vs Itemized Deductions\n\n2025 Standard Deduction:\n- Single: $15,000\n- Married Filing Jointly: $30,000\n\nItemize only if your deductions exceed the standard deduction.\n\n## Keep Good Records\n\nSave all documentation:\n- Form 1098 (mortgage interest statement)\n- Property tax bills\n- Home improvement receipts\n- Energy efficiency certifications\n\nConsult a tax professional for personalized advice. Contact RealMortgage for help maximizing your homeownership benefits!

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). Older loans may have a higher limit, up to $1,000,000, for grandfathered debt on a primary or second home.

Are property taxes deductible for homeowners?

Yes, homeowners can deduct state and local property taxes. However, these deductions are part of the overall State and Local Tax (SALT) deduction, which is capped at $10,000 per household ($5,000 if married filing separately) for combined property, state income, and local taxes.

Can I deduct points paid on my mortgage?

Points paid when purchasing a primary residence can often be fully deductible in the year paid if certain criteria are met, such as being customary for your area and paid directly. For refinanced mortgages, points must generally be deducted incrementally over the life of the loan.