Homeownership comes with a set of federal tax benefits that can meaningfully reduce your annual tax liability — from the mortgage interest deduction to energy-efficiency credits to the powerful home sale exclusion. However, the 2017 Tax Cuts and Jobs Act significantly changed the landscape for homeowner deductions, and many taxpayers no longer itemize. This guide explains which homeowner tax benefits remain valuable in 2026 and how to claim them correctly.
For homeowner tax deductions to benefit you, your total itemized deductions must exceed the standard deduction ($14,600 for single filers; $29,200 for married filing jointly in 2026). With the TCJA's higher standard deduction and the $10,000 SALT cap, many homeowners — particularly those in lower-cost housing markets with smaller mortgages — now take the standard deduction and do not benefit from itemizable homeowner deductions. However, homeowners with large mortgages, high property taxes, and significant charitable contributions may still find itemizing advantageous.
Interest paid on mortgage debt up to $750,000 (acquisition debt — debt used to buy, build, or substantially improve a qualified residence) is deductible as an itemized deduction. The $750,000 limit applies to loans taken out after December 15, 2017 — loans originated before that date are grandfathered at the old $1 million limit. Home equity loan interest is only deductible if the proceeds were used to buy, build, or substantially improve the home (not for personal expenses). Your lender provides Form 1098 each January showing the interest you paid.
The TCJA capped the deduction for state and local taxes — including state income taxes (or general sales taxes) and property taxes — at $10,000 per year ($5,000 for married filing separately). For homeowners in high-tax states (California, New York, New Jersey, Illinois), this cap significantly limits the itemized deduction benefit. Congress has debated raising or eliminating the SALT cap — monitor legislation for any changes after April 2026.
The Inflation Reduction Act (IRA) significantly enhanced two energy-efficiency tax credits for homeowners: the Energy Efficient Home Improvement Credit (25C) provides 30% of qualifying costs, up to $3,200 per year in credits, for improvements including heat pumps, heat pump water heaters, insulation, windows and doors, and home energy audits. Individual subcategory caps apply. The Residential Clean Energy Credit (25D) provides 30% of the cost of solar panels, solar water heaters, small wind turbines, geothermal heat pumps, and battery storage. This credit has no annual dollar cap and unused credit carries forward.
| Energy Credit | Credit Rate | Annual Cap | Qualifying Items |
|---|---|---|---|
| 25C Home Improvement Credit | 30% | $3,200/year ($1,200 for most items; $2,000 for heat pumps) | Insulation, windows, doors, heat pumps, energy audits |
| 25D Residential Clean Energy | 30% | None (carryforward available) | Solar panels, solar water heater, geothermal, battery storage, wind |
Perhaps the most powerful homeowner tax benefit is the Section 121 home sale exclusion: if you owned and used your home as your primary residence for at least 2 of the 5 years before the sale, you can exclude up to $250,000 of gain (single) or $500,000 (married filing jointly) from federal income tax. Gains above the exclusion are taxed at long-term capital gains rates. The exclusion cannot be used more than once every 2 years. This provision alone can shield enormous wealth accumulation from taxation for long-term homeowners.