California Homeowners Insurance Tax Deduction: What You Can and Can't Claim in 2026

If you own a home in California, you're no stranger to skyrocketing insurance premiums. With the FAIR Plan becoming many homeowners' last resort and private insurers pulling out of the state, understanding what you can and cannot deduct on your taxes has never been more important.

This guide covers every major deduction available to California homeowners in 2026 — and clears up the persistent myth that homeowners insurance premiums are tax-deductible for personal residences.

Key Takeaways

• Mortgage interest is deductible on loans up to $750,000 (for loans originated after December 15, 2017)
• Property taxes are deductible up to the $10,000 SALT cap
• FAIR Plan premiums are not tax-deductible for personal residences
• Casualty losses from federally declared disasters may be deductible — with special rules for California wildfire victims
• Home office deductions apply only if you're self-employed and use the space exclusively for business

What California Homeowners Can Deduct

Mortgage Interest

If you itemize deductions, you can deduct interest paid on mortgage debt up to $750,000 (for loans taken out after December 15, 2017). Older loans enjoy a higher $1 million cap. This applies to your primary residence and one second home. The deduction covers interest on home equity loans and lines of credit too — as long as the funds were used to buy, build, or substantially improve the home.

Property Taxes

You can deduct state and local property taxes paid on your California home, but the IRS caps this as part of the overall SALT (State and Local Tax) deduction at $10,000 per household. With California's high property tax bills and state income taxes, many homeowners hit this ceiling quickly.

Casualty and Theft Losses (Federally Declared Disasters)

Under current law, casualty losses are only deductible if they result from a federally declared disaster. This is directly relevant to California wildfire victims — many recent fire events have received federal disaster declarations.

Important 2026 Update: For qualified disaster losses, the deduction is not subject to the normal 10% AGI threshold, uses a lower $500 floor per event, and can be claimed even if you take the standard deduction. The "One Big Beautiful Bill Act" being considered by Congress would expand this to state-declared disasters — but as of 2026, this expansion has not been enacted.

Points Paid on a New Mortgage

Points (prepaid interest) paid when you first take out a mortgage to purchase your primary home are generally fully deductible in the year paid. Points paid on a refinance must typically be deducted over the life of the loan.

Energy-Efficiency Upgrades

The Residential Clean Energy Credit allows you to deduct 30% of the cost of qualifying solar panels, battery storage, and other renewable energy systems installed through 2032. Separately, the Energy Efficient Home Improvement Credit offers up to $3,200 annually for qualifying insulation, windows, heat pumps, and other improvements.

What California Homeowners Cannot Deduct

Homeowners Insurance Premiums

This is the most common misconception. Homeowners insurance premiums — including FAIR Plan premiums — are not tax-deductible for your personal residence. The IRS considers these a personal expense. The only exception is if you rent out your home or use part of it exclusively for business.

Principal Payments on Your Mortgage

Only the interest portion of your mortgage payment is deductible, not the principal repayment portion.

HOA Fees

Homeowners Association fees are personal expenses and are not deductible for your primary or vacation home. Exception: rental properties can deduct HOA fees as a business expense.

Home Improvements (Generally)

Capital improvements like a new kitchen or added bathroom aren't deductible when paid — but they do increase your home's cost basis, which can reduce taxable gain when you eventually sell.

Utilities and General Maintenance

Electric, gas, water bills, and routine maintenance costs are personal expenses with no deduction for primary residences.

Frequently Asked Questions

Can I deduct my California FAIR Plan insurance premium?
No. FAIR Plan premiums, like all homeowners insurance for personal residences, are not tax-deductible at the federal level. If you use part of your home exclusively for a business or rent it out, a proportional deduction may apply.

Are wildfire losses tax-deductible in California?
Potentially yes — if the wildfire was part of a federally declared disaster. Qualified disaster losses have favorable rules: no 10% AGI floor, $500 deductible per event, and claimable even without itemizing. Check IRS disaster relief announcements for your specific event.

What's the SALT deduction cap for 2026?
$10,000 per household for combined state income taxes and property taxes. This has been in place since 2018 and remains in effect through at least 2025; Congress is currently debating changes for 2026 and beyond.

Can I deduct home office expenses?
Only if you're self-employed and use the space exclusively and regularly for business. W-2 employees cannot deduct home office expenses under current tax law, regardless of remote work arrangements.

Do solar panels qualify for a tax credit in 2026?
Yes. The Residential Clean Energy Credit provides a 30% credit (not deduction) for qualifying solar installations through 2032. This credit directly reduces your tax bill dollar-for-dollar.

Disclaimer: This article is for informational purposes only and does not constitute tax, legal, or financial advice. Tax laws change frequently — consult a qualified CPA or tax professional for advice specific to your situation.