What Is California's Homeowners' Exemption, and How Much Does It Save You?

California's Homeowners' Exemption knocks $7,000 off the assessed value of a home you own and occupy as your principal residence, which translates to roughly $70 to $80 a year in actual property tax savings depending on your local tax rate area. To get the full exemption for the year, you need to file a one-time claim—form BOE-266—with your county assessor by February 15, though filing late between February 16 and December 10 still gets you 80% of the exemption. The exemption doesn't automatically transfer when a home changes hands, so if you just bought a house, even one that previously had the exemption, you have to file your own claim.

How Much Does the Homeowners' Exemption Actually Save You?

The exemption reduces the assessed value used to calculate your property tax bill by $7,000, not the tax bill itself. Since the general property tax levy in California is capped at 1% of assessed value under Proposition 13, a $7,000 reduction in assessed value works out to about $70 a year in savings from the general levy alone. Most Southern California tax bills also include voter-approved bonds, parcel taxes, and special assessments layered on top of that 1% base, which push the effective rate above 1% in many areas—so the real annual savings for most homeowners tends to land somewhere between $70 and $100, depending on the specific tax rate area the property sits in.

Who Qualifies for California's Homeowners' Exemption?

To qualify, you need to both own and occupy the property as your principal residence as of January 1, which the law refers to as the lien date. The home has to be where you actually live, not a second home, vacation property, or a unit you rent out to someone else. Eligible property types include single-family homes, condominiums, manufactured homes, and even one unit of a multi-unit property if you live in that unit yourself. If you co-own a home with someone else and only one of you lives there, the exemption can still apply based on that owner-occupant's residency.

How and When Do You File for the Homeowners' Exemption?

You file a claim using form BOE-266, "Claim for Homeowners' Property Tax Exemption," with the assessor's office in the county where the property is located—Los Angeles County and Orange County each have their own version of the form and their own filing portal, though the underlying rules are set by state law. Filing by February 15 secures the full $7,000 exemption for that tax year. If you miss that date, you can still file anytime through December 10 and receive 80% of the exemption rather than losing it entirely for the year. New homeowners typically receive the claim form automatically from the assessor's office shortly after a purchase records, but it's worth filing proactively rather than waiting for it to arrive, especially if you're closing late in the year.

What Happens If You Miss the February 15 Deadline?

Missing February 15 doesn't mean losing the exemption for the year—it just means a smaller one. Claims filed between February 16 and 5 p.m. on December 10 still receive 80% of the exemption. If you buy a home partway through the year and it gets a supplemental tax assessment, a separate set of deadlines applies: you generally need to occupy the property within 90 days of the change in ownership and file within 30 days of receiving the Notice of Supplemental Assessment to get the full exemption against that supplemental bill, with an 80% exemption still available if you file after that but before the first installment becomes delinquent.

Do You Need to Reapply Every Year, or Does It Carry Over?

Once the assessor grants the exemption, it stays in effect automatically from year to year—you don't need to refile annually as long as you continue to own and occupy the home as your principal residence. What you do need to do is notify the assessor when the property stops qualifying, such as when you move out, start renting it to someone else, or sell it. Failing to report a change in eligibility can expose you to a 25% penalty on the resulting escape assessment, so it's worth updating the assessor promptly rather than letting an outdated exemption linger on a home you no longer occupy.

Frequently Asked Questions

Is the Homeowners' Exemption the same thing as California's homestead protection?
No. The Homeowners' Exemption reduces your property tax bill by lowering assessed value. California's homestead exemption is a separate law that protects a portion of a homeowner's equity from certain creditors and in bankruptcy—they're unrelated programs that happen to share similar-sounding names.

If I buy a home that already has the Homeowners' Exemption, does it transfer to me?
No. The exemption is tied to the owner-occupant, not the property, so a new owner has to file their own BOE-266 claim even if the previous owner had the exemption in place.

Does refinancing my mortgage affect my Homeowners' Exemption?
No. Refinancing doesn't change who owns or occupies the property, so it has no effect on an existing exemption. You only need to file a new claim after an actual change in ownership.

What happens if I move out and start renting my home to tenants?
You're required to notify the assessor once the property is no longer your principal residence. Continuing to receive the exemption after you've moved out can result in a 25% penalty on the escape assessment once the county catches the change.

Updated for October 2026.