California homeowners carry some of the highest property tax bills and mortgage payments in the country, which makes the tax side of ownership worth understanding. With Thousand Oaks home prices averaging $1 million in early 2026, the deductions covered here can be worth thousands of dollars a year, and recent federal changes expanded several of them for 2026. Everything below is general information, so run your own numbers with a CPA before acting on any of it.
Source: IRS data analysis, March 2026
Key Takeaways
- The federal SALT deduction cap rose from $10,000 to $40,400 for 2026, worth up to roughly $9,696 a year in federal tax savings for a qualifying household in the 24% bracket.
- Thousand Oaks homeowners can deduct interest on up to $750,000 of mortgage debt, which at 2026 rates means tens of thousands of dollars in deductible interest each year.
- Private mortgage insurance premiums became tax-deductible as mortgage interest starting in 2026 under new federal tax rules.
- Federal energy efficiency tax credits expired December 31, 2025, but California's HEEHRA program still offers up to $8,000 rebates for heat pump installations.
- The expanded SALT deduction phases out for taxpayers with modified AGI above roughly $500,000 and falls back to $10,000 at around $600,000 and above.
California homeowners in 2026 benefit from mortgage interest deductions on loans up to $750,000, an expanded SALT deduction cap of $40,400 for joint filers, and newly deductible PMI premiums. For a Thousand Oaks homeowner with a $1 million mortgage, the combined savings can reach five figures a year depending on tax bracket, though the SALT benefit phases out above roughly $500,000 in modified AGI.
What Are the Current Tax Benefits for California Homeowners in 2026?
The rules changed meaningfully for 2026. The federal SALT deduction cap rose from $10,000 to $40,400, with annual inflation adjustments, which matters a great deal in a high-tax state. California homeowners who itemize can now deduct:
- Mortgage interest: Up to $750,000 of mortgage debt for primary and secondary residences
- Property and state income taxes: Up to $40,400 combined for most filers ($20,200 if married filing separately)
- Points paid: Generally deductible in the year of purchase if they meet IRS requirements
- PMI premiums: Starting in 2026, private mortgage insurance premiums are treated as deductible mortgage interest
For a Thousand Oaks homeowner with a $1 million mortgage at 2026 rates, interest on the first $750,000 of that loan is deductible, which runs well into five figures each year. Combined with the expanded SALT deduction, total federal savings can reach five figures for many households, depending on bracket and how far itemized deductions exceed the standard deduction. A CPA can tell you where you land.
How Does the Expanded SALT Deduction Affect Thousand Oaks Homeowners?
The expanded SALT cap is the biggest change for California homeowners since the Tax Cuts and Jobs Act first capped the deduction. Coastal California households with property tax bills between $12,000 and $35,000 a year, plus state income tax at marginal rates of 9.3% to 13.3% for higher earners, clear the itemization threshold without much effort.
In Thousand Oaks, where home values commonly top $1 million, a property tax bill on a recent purchase often runs $13,000 to $16,000 a year. Add California income tax for a household earning $200,000 (roughly $15,000 to $18,000), and total SALT lands around $28,000 to $34,000. One caveat: the deduction only helps if your total itemized deductions exceed the standard deduction, which was also raised for 2026, so confirm the current figure for your filing status before assuming you itemize.
| Income Level | Property Tax | State Income Tax | Total SALT | Deductible Amount | Tax Savings (24% bracket) |
|---|---|---|---|---|---|
| $150,000 | $14,000 | $12,000 | $26,000 | $26,000 | $6,240 |
| $250,000 | $16,000 | $20,000 | $36,000 | $36,000 | $8,640 |
| $400,000 | $18,000 | $32,000 | $50,000 | $40,400 | $9,696 |
The catch: the expanded cap phases out for taxpayers with modified AGI above roughly $500,000 ($250,000 for married filing separately). The cap shrinks by 30% of income over that threshold and is back down to $10,000 at around $600,000. Households near those lines should talk to their CPA before year end.
What Is the Mortgage Interest Deduction Worth in Today's Market?
With 2026 mortgage rates in the 6% to 7% range and Thousand Oaks prices around $1 million, the mortgage interest deduction carries real weight. On a $750,000 loan (the deduction limit) at 6.5%, first-year interest comes to roughly $48,750, all of it deductible for homeowners who itemize.
Families relocating from Sherman Oaks or Encino often find Thousand Oaks prices comparable to what they left. The draw is the combination of well regarded schools, open space like Wildwood Regional Park, and the tax treatment described above, which lowers the real cost of carrying a loan.
The same math applies in neighboring Westlake Village and the rest of the Conejo Valley; the deduction limits are federal and do not change by zip code.
Are There Still Energy Efficiency Tax Credits Available?
With the passage of the One Big Beautiful Bill Act, the main federal residential energy tax credits, including the Energy Efficient Home Improvement Credit and the Residential Clean Energy Credit, expired December 31, 2025. California still runs several state-level programs.
The HEEHRA Phase I program offers up to $8,000 in rebates to income-qualified California homeowners for heat pump HVAC systems, available only through TECH-certified contractors. California's Energy Smart Homes program is slated to run through 2027, though incentive levels and funding can change, so verify before you commit to a project.
For Thousand Oaks homeowners considering energy upgrades, the focus shifts from federal tax credits to:
- California state rebates for heat pump installations
- Utility company incentives through Southern California Edison
- Local financing programs with favorable terms
- Increased property values from energy efficiency improvements
Stacking state rebates with utility incentives can still take a meaningful bite out of the cost of an upgrade, even without the federal credits.
Frequently Asked Questions About California Real Estate Tax Benefits
Can I deduct property management fees or HOA dues?
No, property management fees and HOA dues for your primary residence are not tax-deductible. However, if you rent out a portion of your home or own investment property, these expenses may be deductible against rental income. Regular maintenance and improvements to investment properties can also generate tax benefits.
How do I calculate my property tax deduction in Thousand Oaks?
Thousand Oaks property taxes are assessed by Ventura County at approximately 1.1% to 1.3% of assessed value, depending on local bonds and assessments. For a $1 million home, expect $11,000 to $13,000 in annual property taxes. That amount counts toward your SALT deduction, which is capped at $40,400 for joint filers (property tax plus state income tax combined) and only matters if you itemize. When purchasing, factor in additional closing costs in Ventura County beyond property taxes.
What records should I keep for tax deductions?
Maintain detailed records including: closing statements showing points paid, annual mortgage interest statements (Form 1098), property tax bills and payment receipts, PMI payment records, and receipts for qualifying energy-efficient improvements. Keep annual tax records for at least three years after filing, and hold onto purchase and improvement records for as long as you own the home plus a few years, since they establish your cost basis when you sell. For homeowners dealing with inheritance issues, Prop 19 affects real estate investors and inherited properties in ways that require careful documentation. Additionally, heirs should understand how probate and trust sales in California impact tax obligations.
Are first-time homebuyer programs still available in California?
Some are. Mortgage Credit Certificate (MCC) programs, where offered, provide a federal tax credit of 15% to 20% of annual mortgage interest, potentially worth $2,000 to $4,000 a year. Availability varies by county, funding is first come, first served, and programs often close soon after opening, so ask your lender early. MCCs generally require owner occupancy; if you are weighing real estate investment in the Conejo Valley, the tax picture is different and worth its own conversation with a CPA.
Thinking About Buying or Selling in Thousand Oaks?
Davis Bartels and DB Real Estate Group have handled 500+ transactions in the Conejo Valley and surrounding areas since 2009. If any of this applies to your situation, happy to talk it through, and a good CPA should be part of that conversation too.
Contact Davis: davisbartels.com
