Los Angeles County property tax: complete guide to assessments, rates, and appeals

Last updated 2026-07-09

How does property tax assessment work in Los Angeles County?

California's Proposition 13, passed in 1978, is the foundation of every property tax bill in Los Angeles County ^[1]. It does two things no other big state does quite the same way. It caps the base tax rate at 1% of assessed value, and it limits annual increases in that assessed value to 2% per year (or the California Consumer Price Index increase, whichever is lower). So your taxable value can drift far below true market value if you've owned your home for years.

The Los Angeles County Assessor assigns a "base year value" the first time you buy a property. That value is usually the purchase price. Every year after, the Assessor applies the 2% inflation factor unless a "decline-in-value" (Proposition 8, enacted 1978) event drops your market value below the inflation-adjusted base. The Assessor has to enroll whichever is lower: the Prop 13 factored base year value or current market value ^[12].

A few events trigger a full reassessment to current market value. Selling the property is the most common. So is new construction, though only the new portion gets reassessed, not the existing structure. Certain ownership changes that aren't technically a sale can also trigger reassessment, which catches a lot of people off guard when they inherit or transfer property within a family.

For 2024-25, the Assessor's 1% County-wide assessment roll passed $1.997 trillion in total assessed value ^[3]. That number matters. It shows how large a base LA County works from, and why small percentage errors in your individual assessment add up to real money fast.

What is the actual property tax rate in Los Angeles County right now?

The base rate is 1% everywhere in California under Prop 13. What varies is the pile of extra levies stacked on top of that base ^[1].

Los Angeles County is carved into hundreds of Tax Rate Areas (TRAs). Each TRA reflects the particular mix of cities, school districts, water districts, and special assessment bonds that apply to parcels inside that boundary. The LA County Auditor-Controller publishes the full TRA schedule every year ^[4].

Here's a representative sample of total rates for common areas in the 2023-24 tax year:

City / Area	Approx. Total Tax Rate
City of Los Angeles (general)	1.193%, 1.250%
Santa Monica	1.149%, 1.200%
Long Beach	1.200%, 1.270%
Pasadena	1.176%, 1.240%
Burbank	1.158%, 1.220%
Torrance	1.148%, 1.200%
Unincorporated LA County	1.160%, 1.230%

These ranges exist because school and infrastructure bonds differ block by block. To find your exact rate, look up your APN (Assessor Parcel Number) in the Auditor-Controller's property tax portal ^[4].

On top of the percentage-based rate, many parcels carry flat per-parcel assessments. These include Mello-Roos Community Facilities Districts, lighting and landscaping charges, and vector control fees. They show up as line items on your tax bill and generally aren't appealable through the Assessment Appeals Board because they aren't ad valorem taxes. Some have separate protest processes.

When are Los Angeles County property tax bills due and what are the penalty deadlines?

The LA County tax year runs July 1 to June 30. Your annual bill splits into two installments ^[4].

Installment	Due Date	Last Day to Pay Without Penalty
1st (covers July, December)	November 1	December 10
2nd (covers January, June)	February 1	April 10

If December 10 or April 10 lands on a weekend or holiday, the deadline moves to the next business day. Miss either deadline and a 10% penalty hits instantly. Miss the 2nd installment past June 30 and the bill becomes delinquent, adding another 1.5% per month. After five years of delinquency, the property can go to tax sale.

There's a supplemental bill system on top of the regular annual bill. When you buy a home, the Assessor reassesses it to purchase price mid-year and sends a prorated supplemental bill for the gap between the old assessed value and your new one. These supplemental bills carry their own due dates printed on the face of the bill, separate from the November and February cycle. A lot of new buyers miss them.

The formal appeal deadline is separate from both. You have until November 30 of each tax year to file an application with the Assessment Appeals Board challenging your July 1 enrolled value. More on that below ^[11].

How do you appeal a property tax assessment in Los Angeles County?

The appeal process has two phases. The informal phase is a Decline in Value review directly with the Assessor's office. The formal phase is a hearing before the Assessment Appeals Board (AAB), a quasi-judicial body independent of the Assessor ^[11].

Step 1: Check whether the Assessor already ran a Prop 8 review. Every year the Assessor looks at parcels where market values may have fallen. If yours was reviewed and you disagree with the result, or if it wasn't reviewed at all, request a Decline in Value review by contacting the Assessor at assessor.lacounty.gov. This is free, fairly quick, and can settle simple cases without a hearing ^[12].

Step 2: File an Application for Changed Assessment (AAB Form). If the informal review doesn't satisfy you, file a formal appeal with the Assessment Appeals Board. The filing window is July 2 through November 30 for regular assessments, and 60 days from the date of a supplemental assessment notice ^[11]. The filing fee for residential appeals is $30 as of 2024 (commercial properties pay scaled fees). You can file online through the LA County Assessment Appeals Board portal.

Step 3: Build your evidence before the hearing. The Board decides on the evidence you bring. The burden of proof sits on you as the applicant to show the assessed value exceeds market value ^[6]. The Assessor's enrolled value carries a presumption of correctness under California Revenue and Taxation Code Section 1608.

Step 4: Attend (or waive) your hearing. Hearings are run by Assessment Appeals Officers (AAOs) or a three-member Board panel. You present evidence, the Assessor's representative presents theirs, and the Board decides. You can appear in person or, since 2021, by remote video for many hearing types. Don't appear and don't arrange a waiver, and your application gets dismissed.

Step 5: Get the decision and your refund. If you win, the Assessor corrects the roll and the Auditor-Controller issues a refund of overpaid taxes, typically with interest at the rate set by Revenue and Taxation Code Section 5151 (currently 3% annually) ^[6].

If your county is outside California, the process differs a lot. For Missouri homeowners, the how to appeal Jackson County property tax assessment process follows Missouri's Board of Equalization rules with a July protest deadline in reassessment years.

When is the last day to appeal property taxes in Los Angeles County?

November 30. That's the hard cutoff for filing an Application for Changed Assessment against your regular annual enrollment ^[11]. The LA County Assessment Appeals Board doesn't grant extensions for late applications except in narrow circumstances, and "I didn't know" is not one of them.

For supplemental assessments (triggered by a sale or new construction), the deadline is 60 days from the date printed on your supplemental notice, not November 30. These dates are easy to miss because supplemental bills arrive at odd times throughout the year.

A few other dates that matter:

• July 1: New assessed values take effect for the tax year.
• July 2: The appeal filing window opens.
• August 1 (roughly): The Assessor mails Notices of Assessed Value for properties that changed. No notice means your value was unchanged.
• November 30: Last day to file a formal appeal.

California Revenue and Taxation Code Section 1603 sets the November 30 deadline in statute. There's one limited exception. If you never received a notice of a value change you should have gotten, you may be able to file outside the window under a "failure to receive notice" theory. That's litigated territory, not a simple form.

Other counties run very different calendars. San Diego County property tax appeals, for instance, sit on the same California Prop 13 framework with the same November 30 cutoff.

How do you get comparable sales (comps) for a property tax appeal in LA County?

The LA County Assessor's own online tools are your first stop. The public property search at assessor.lacounty.gov lets you look up neighboring parcels and see their assessed values and, in some cases, recorded sale prices. It's free and needs no login ^[3].

For real comparable sales data, you have a few options:

County Recorder documents. California is a disclosure state. Recorded deeds often include documentary transfer tax, which lets you back-calculate the sale price (divide the transfer tax by $1.10 per $1,000 of value). The LA County Registrar-Recorder has a public records portal.

Zillow, Redfin, and similar portals. These pull MLS sales data and work fine for a residential appeal, but you need to be precise. An appraiser looks for sales within 12 months of the lien date (January 1 for the prior tax year), within roughly half a mile to a mile in similar neighborhoods, with similar physical traits: square footage within about 20%, same bedroom and bathroom count, similar lot size, similar condition.

The Assessor's Sales Locator. The Assessor publishes a Sales Locator tool that pulls county-recorded arm's-length sales. It's built for exactly this.

A limited appraisal or desk review. If your property is worth fighting for (rule of thumb: if potential tax savings over three years top $600 to $800, it's probably worth spending $200 to $400 on a restricted appraisal report), a California-licensed appraiser can produce a retrospective appraisal as of the January 1 lien date. The Board gives formal appraisals more weight than raw MLS printouts.

When you assemble comps, bring at least three. More is better. For each one, note the address, APN, sale date, sale price, square footage, price per square foot, and any material differences from your property (a detached garage, a pool, a busy street). Then adjust for those differences. The Board wants to see logic, more than a list of cheaper homes.

A TaxFightBack appeal kit walks you through building a comp grid in the exact format LA County AAB officers expect, which saves you from the most common rejection reason: incomplete or uncomparable comparables.

How long does a property tax appeal take in Los Angeles County?

Longer than most people expect. The LA County Assessment Appeals Board has carried a backlog measured in years for formal hearings, though it has made progress since about 2020 ^[11].

For a standard residential Prop 8 decline-in-value review handled informally with the Assessor, you might hear back in 60 to 120 days. These informal reviews skip the hearing entirely ^[12].

For a formal appeal filed with the AAB, California Revenue and Taxation Code Section 1604 requires the Board to hear applications within two years of the filing deadline (so within two years of November 30). In practice, LA County routinely uses the full two-year window and sometimes asks for a one-year extension on complex cases. Simple residential cases sometimes get scheduled within 12 to 18 months, especially if you agree to a hearing officer instead of the full three-member Board.

Here's what matters financially. Your appeal locks in retroactive protection. File by November 30 and win, and the correction applies back to July 1 of that tax year no matter when the hearing lands. You get a refund with interest for any excess taxes paid during the wait.

The two-year wait is one reason some homeowners push for a stipulated settlement with the Assessor before a hearing. If you've got a clear, well-documented case, the Assessor's office may agree to a reduced value without a full hearing. This is common for commercial properties and works for residential cases too, especially if you engage early with a solid appraisal in hand.

Can you appeal your property tax assessment every year?

Yes. California law lets you file a fresh Prop 8 decline-in-value appeal each year if you think your market value sits below the Prop 13 factored base year value ^[1]. There's no rule against annual appeals, and in a falling market, filing every year makes sense.

The catch: if you win a Prop 8 reduction in year one, the Assessor restores the assessed value in later years as the market recovers. The Prop 13 base year value acts as a ceiling, so once market value climbs back above it, your assessed value rises again. You can't lock in a Prop 8 reduction forever.

For formal AAB appeals (as opposed to informal Prop 8 reviews), there's a nuance. Revenue and Taxation Code Section 1601 lets you contest the base year value only within certain windows, usually within four years of the change that established that base year. Annual appeals of the base year itself aren't unlimited. Annual appeals of the current enrolled value against current market value are.

Practically: file every year your home's market value has clearly dropped below what the Assessor says it's worth. In LA County's cyclical real estate market, the years after a peak (roughly 2007-2010, and worth watching in 2023-2024 as rates rose) are prime appeal windows.

If you own rental or commercial property in LA County, look at the Cook County property tax and Fairfax County property tax approaches as comparison points, since those jurisdictions run formal annual appeal cycles with different evidence standards.

How do you prepare for a property tax appeal hearing in LA County?

Preparation is where most self-represented homeowners win or lose. The Board isn't hostile to unrepresented applicants, but it can't do your work for you.

Know the lien date. California property tax liability attaches on January 1 before the tax year. Appealing a 2024-25 assessment (July 2024 through June 2025) means your valuation date is January 1, 2024. All your comps and market evidence must anchor to that date, or the Board can throw them out.

Organize your evidence packet before the hearing. Bring enough copies for the hearing officer and the Assessor's representative (usually three to five copies total). Your packet should hold: (1) a cover sheet with your APN, property address, the enrolled value, and your estimated market value; (2) a summary grid of comparable sales; (3) supporting sale documents or screenshots; (4) photographs if condition is an issue; (5) any appraisal report you obtained.

Understand the burden of proof. Under California Revenue and Taxation Code Section 1608, the Assessor's value is presumed correct. You have to prove it's wrong. "I think it's too high" isn't proof. Three to five arm's-length sales that bracket a lower value, explained clearly, usually is.

Anticipate the Assessor's rebuttal. The Assessor's representative often brings their own comparable sales backing the enrolled value. Review those ahead of time if you can (the Assessor's evidence is sometimes available on request before the hearing). Be ready to explain why your comps beat theirs.

Show up on time and keep it tight. AAB hearings run in 15-to-30-minute slots for residential cases. Rambling or repeating yourself burns the slot and annoys the officer. Lead with your conclusion, then your evidence, then take questions.

For homeowners who want a structured system instead of building this from scratch, the TaxFightBack DIY appeal kit provides county-specific evidence worksheets and the exact comp grid format the LA AAB uses, so you keep 100% of any reduction without paying contingency fees.

What property tax exemptions are available in Los Angeles County?

California offers several exemptions that cut your assessed value before the tax rate applies ^[12].

Homeowner's Exemption. If the property is your primary residence on January 1, you get a $7,000 reduction in assessed value. At a 1.2% effective rate, that saves about $84 a year. Small, but free to claim. File once and it renews automatically.

Disabled Veterans' Exemption. Veterans with a service-connected disability rated 100% (or whose disability is total and permanent) may qualify for an exemption of $100,000 to $150,000 off assessed value, depending on income. Surviving spouses may qualify too.

Welfare / Religious / Non-Profit Exemption. Organizations that meet California Revenue and Taxation Code requirements can apply for full exemption on qualifying parcels.

Parent-Child and Grandparent-Grandchild Exclusion (Proposition 19). This is where things got complicated in 2021. Prop 19 (passed November 2020, effective February 16, 2021) sharply narrowed the transfers that let a child inherit a parent's low Prop 13 base year value ^[8]. Now the exclusion applies only if the child uses the property as a primary residence, and only the first $1 million of assessed value above the parent's base year value is excluded. Investment properties no longer transfer the old base year value. If you inherited property after February 15, 2021, check whether you need to claim a Homeowner's Exemption to keep any Prop 19 benefit.

Senior Citizen Property Tax Postponement. California's State Controller runs a program letting qualifying seniors (62+, household income under $45,810 for 2024) defer property taxes as a low-interest loan. It's not an exemption, but it eases cash-flow pressure. The State Controller's Office administers it directly ^[7].

Filing deadlines for most exemptions are February 15 of the tax year. Late applications may get accepted with a penalty or partial-year benefit, but don't count on it.

What happens if you miss the November 30 appeal deadline or lose your appeal?

Missing the deadline stings but isn't always fatal. A few limited remedies exist.

First, if the Assessor finds an error on their own (an "escape assessment" or erroneous enrollment) and corrects your roll within four years, you can contest that correction through a separate process under Revenue and Taxation Code Section 4831.

Second, if you can show you never received a required notice and the deadline slipped because of that failure, you may have standing to file a late application under the "failure to receive notice" exception. That's a legal argument, not a form, and the Board decides it.

Third, and most practical: the informal Prop 8 decline-in-value review with the Assessor's office doesn't carry the November 30 cutoff. You can request a Prop 8 review at any point during the tax year ^[12]. If the Assessor agrees your value is too high, they can correct it without a formal appeal. The outcome isn't guaranteed, and it isn't binding the way an AAB decision is, but it costs nothing to try.

Lose a formal appeal and you can't re-litigate the same tax year, but you can file again for the next. You can also appeal the AAB decision to the California Superior Court under Revenue and Taxation Code Section 5140, but that means filing within six months of the decision and running a formal lawsuit. Most homeowners skip that unless the dollars justify attorney fees.

For comparison, Collin County property tax appeals in Texas and Cuyahoga County property tax in Ohio have their own missed-deadline remedies worth knowing if you hold property in those states.

How does the LA County appeal process compare to Jackson County (Missouri)?

This comes up because homeowners searching for property tax appeal help sometimes land on LA County resources when they're really dealing with Jackson County, Missouri, which has been the center of a large assessment dispute and class-action litigation. The two systems work very differently.

In Jackson County, Missouri, the county Assessor reassesses all residential property every two years (odd years). Missouri law (RSMo Chapter 137) gives owners a right to protest to the Board of Equalization (BOE), with a deadline of the third Monday in July in reassessment years ^[9]. If the BOE denies relief, taxpayers can appeal to the Missouri State Tax Commission or circuit court within 30 days of the BOE decision.

The Jackson County lawsuits from 2023 onward alleged that assessments jumped dramatically and blew past statutory limits, which drove a class-action challenge. Missouri's State Tax Commission took the unusual step of ordering Jackson County to reopen the protest period in 2023 for affected parcels ^[10].

LA County, by contrast, runs under Prop 13's strict 2% annual cap, so the kind of sudden mass-reassessment shock that hit Jackson County simply can't happen in California under current law. The appeal timelines, evidence standards, and remedies all differ.

Missouri owners dealing with a Jackson County dispute use the BOE protest and State Tax Commission process. LA County homeowners use the AAB process laid out above. These aren't interchangeable.

Other big urban counties run their own systems. Cook County property tax in Chicago and St. Louis County personal property tax in Missouri each follow different reassessment calendars and appeal rules.

Frequently asked questions

How do I appeal my property tax assessment in Los Angeles County?

File an Application for Changed Assessment with the LA County Assessment Appeals Board between July 2 and November 30. The $30 filing fee (residential) covers one hearing. Bring comparable sales anchored to January 1 of the tax year, photographs if condition is an issue, and a cover sheet showing the enrolled value versus your estimated market value. The Assessor's value is presumed correct, so your evidence has to actively disprove it.

What is the deadline to appeal property taxes in Los Angeles County?

November 30. That's the statutory deadline under California Revenue and Taxation Code Section 1603 for challenging your annual enrolled assessed value. For supplemental assessments from a sale or new construction, the deadline is 60 days from the date on your supplemental notice. The informal Prop 8 decline-in-value review with the Assessor has no hard cutoff and can be requested during the tax year.

How long does a property tax appeal take in LA County?

Informal Prop 8 reviews with the Assessor take roughly 60 to 120 days. Formal Assessment Appeals Board hearings can run 12 to 24 months given the county's backlog, though California law requires a hearing within two years of the filing deadline. If you win, the correction is retroactive to July 1 of the appealed tax year regardless of when the hearing occurs, so you get a refund with interest.

Can I appeal my property tax assessment every year in California?

Yes. You can file a new Prop 8 decline-in-value appeal each year your property's market value falls below its Prop 13 inflation-adjusted base year value. If the Assessor grants a reduction, they can restore the value in later years as the market recovers. Annual formal appeals of the base year value itself are more limited and must meet specific statutory windows under Revenue and Taxation Code Section 1601.

How do I get comparable sales for my LA County property tax appeal?

Start with the LA County Assessor's free public Sales Locator tool at assessor.lacounty.gov. Supplement with Zillow or Redfin for recent sale prices. Focus on arm's-length sales within 12 months of January 1 of the tax year, within about a mile, with similar square footage, bed-bath count, and lot size. For high-value or complex properties, a retrospective appraisal from a California-licensed appraiser carries the most weight before the Board.

What is the homeowner's exemption in LA County and how do I file?

California's Homeowner's Exemption cuts your assessed value by $7,000 if the property is your primary residence on January 1. At typical LA rates, that saves about $84 a year. File once with the Assessor and it auto-renews. The deadline is February 15. New homeowners should get a claim form automatically, but if you don't, you can file at assessor.lacounty.gov or at any Assessor district office.

How do I appeal a Jackson County, Missouri property tax assessment?

File a protest with the Jackson County Board of Equalization (BOE) by the third Monday in July in reassessment years (odd-numbered years in Missouri). Bring documentation of your property's market value. If the BOE denies relief, appeal to the Missouri State Tax Commission within 30 days. Jackson County's process is entirely separate from California's system and follows Missouri Revised Statutes Chapter 137.

What triggers a full reassessment in Los Angeles County?

An arm's-length sale, new construction (only the new portion), and certain ownership changes such as non-family trust transfers or corporate ownership changes all trigger reassessment to current market value. Proposition 19 (effective February 16, 2021) also narrowed parent-child inheritance exclusions, so many inherited properties now get reassessed unless the heir moves in as a primary resident.

What is a Mello-Roos tax and can I appeal it?

Mello-Roos districts are Community Facilities Districts that levy special taxes on parcels within their boundaries to fund infrastructure like roads, sewers, and schools. They show up as flat-dollar line items on your LA County tax bill and aren't ad valorem assessments. They generally aren't appealable through the Assessment Appeals Board. Some Mello-Roos taxes have separate internal protest processes; check the district's authorizing documents for details.

How do supplemental property tax bills work in LA County?

When you buy a home, the Assessor reassesses it mid-year to your purchase price and issues a prorated supplemental bill for the gap between the old value and your new one. If you buy late in the fiscal year, you may get two supplemental bills. Each carries its own due date printed on the face of the bill. If you think the supplemental value is wrong, you have 60 days from the notice date to file a formal appeal with the AAB.

What evidence does the LA County Assessment Appeals Board actually accept?

The Board accepts comparable sales data (arm's-length, near the January 1 lien date), formal appraisal reports by California-licensed appraisers, income-capitalization analysis for income-producing properties, and evidence of physical condition such as photographs or contractor repair estimates. Hearsay and Zillow "Zestimates" alone are weak. The stronger your evidence, the less the Assessor's presumption of correctness matters.

Does winning a property tax appeal affect my Prop 13 base year value?

A Prop 8 decline-in-value reduction doesn't change your Prop 13 base year value. It temporarily lowers your enrolled value while the market is soft. When market value recovers above your Prop 13 base, the Assessor restores your enrolled value up to the inflation-adjusted base. A successful appeal of the base year value itself (a Prop 13 appeal) permanently lowers the ceiling, which is why the Assessor defends those cases harder.

How do I find my exact property tax rate in Los Angeles County?

Look up your Assessor Parcel Number (APN) in the LA County Auditor-Controller's online property tax portal at auditor.lacounty.gov. The portal shows your Tax Rate Area code and the full itemized rate breakdown, including the 1% base, school bonds, city bonds, and any special district levies. Total rates in LA County typically fall between 1.15% and 1.28% depending on location and applicable bond measures.

Can I appeal my property taxes if I have a Mello-Roos or special assessment?

The ad valorem portion of your bill (the percentage-based tax on assessed value) is appealable through the Assessment Appeals Board. Mello-Roos and other flat special assessments aren't appealable through the AAB because they aren't based on assessed value. If you believe a special assessment was improperly levied, contact the administering district directly or consult a California property tax attorney about a Proposition 218 protest.

Sources

1. California State Board of Equalization, Proposition 13 Overview: Proposition 13 caps the base tax rate at 1% of assessed value and limits annual increases to 2% or the California CPI, whichever is lower
2. Los Angeles County Assessor, Annual Report and Assessment Roll: For 2024-25, the LA County assessment roll exceeded $1.997 trillion in total assessed value
3. Los Angeles County Auditor-Controller, Property Tax Portal: The Auditor-Controller publishes annual Tax Rate Area schedules and the two-installment payment calendar with December 10 and April 10 deadlines
4. California Revenue and Taxation Code, Sections 1601-1611 (via California Legislative Information): Revenue and Taxation Code Section 1608 places the burden of proof on the applicant; Section 5151 sets the interest rate on refunds; Section 1604 sets the two-year hearing deadline
5. California State Controller's Office, Property Tax Postponement Program: The State Controller administers the Senior Citizen Property Tax Postponement program for qualifying residents 62 or older with household income under $45,810 for 2024
6. California Proposition 19 (2020), via California Secretary of State: Proposition 19, effective February 16, 2021, limits the parent-child transfer exclusion to primary residences only and caps the excluded assessed value difference at $1 million
7. Missouri Revised Statutes Chapter 137 (property tax), via Missouri Revisor of Statutes: Missouri RSMo Chapter 137 governs Jackson County and all Missouri counties; residential property is reassessed every two years in odd-numbered years; the Board of Equalization protest deadline is the third Monday in July
8. Missouri State Tax Commission: The Missouri State Tax Commission ordered Jackson County to reopen the 2023 protest period following allegations of improper mass assessment increases
9. California Revenue and Taxation Code Section 1603, via California Legislative Information: Section 1603 sets the November 30 statutory deadline for filing Applications for Changed Assessment in California counties
10. Los Angeles County Assessor, Decline-in-Value (Proposition 8) Program: The Assessor reviews parcels annually for potential Prop 8 decline-in-value reductions and property owners can also request a review directly