LA Property Tax Assessor Records
Search by Address, AIN, Tax Bill, Owner Clues and Assessor Map
LA property tax assessor search means using the official Los Angeles County Assessor Portal and Property Tax Portal to find property records on government websites for free. This guide shows you where to search by address or AIN, how to read assessed value, where to view tax bills and payment history, how to use Assessor maps, where to find recorded documents, and how to file an assessment appeal.
Use the official Los Angeles County Assessor Portal at https://portal.assessor.lacounty.gov/ to search property records by AIN or property address. Use https://www.propertytax.lacounty.gov/ for the combined property tax process and use the Los Angeles County Treasurer and Tax Collector for tax bills, balances and payments. This guide shows you how to find LA County property records on official government websites for free.
What Should You Click First for LA Property Tax Assessor Search?
Start with the tool that matches your problem. Los Angeles County splits assessment, tax billing, recording and appeals across different official offices, so the fastest answer depends on whether you need assessed value, a tax bill, a map, a recorded deed or an appeal form.
I have a property address
Use the LA County Assessor Portal basic search. Enter the address first. If the exact address fails, remove unit numbers, directional words and street suffixes.
Open Assessor PortalI have an AIN
Use AIN search first. Your Assessor’s Identification Number is printed on your secured property tax bill and is the cleanest way to reach the correct parcel.
Search by AINI need to view or pay a tax bill
Use the Treasurer and Tax Collector. You normally need AIN, year and sequence details from your bill to pay or confirm payment status.
Open Tax CollectorI need a parcel map
Use LA County Assessor map search for parcels, reference layers, districts, cities, communities, ZIP codes and map context.
Open Map SearchI disagree with the value
Use the Assessment Appeals Board. Regular assessment appeals generally run from July 2 to November 30, and supplemental appeals have separate 60-day rules.
Open Appeals BoardI need deed or recorded document help
Use the Los Angeles County Registrar-Recorder/County Clerk for recorded documents, deeds, official records and recording questions.
Open LA County RecordsLA Property Tax Assessor Search by Address — Step-by-Step Guide
The LA property tax assessor search by address should start at the official Assessor Portal, not on Zillow, Redfin, a private lookup site or a paid people-search page. The goal is to find the official parcel/AIN first, then use that AIN for tax bills, payment history, appeals and recorded-document research.
Open the official Los Angeles County Assessor Portal
Go to https://portal.assessor.lacounty.gov/. The portal offers basic search, legal search and map search options. Start with basic search if you have a normal street address.
Enter the property address in a clean format
Use the house number and street name first. Avoid apartment numbers, suite numbers, long city/state strings and punctuation on the first try. Los Angeles County has many incorporated cities and communities, so address formatting matters.
Open the correct property and copy the AIN
The AIN is the key to the rest of the LA County property tax system. Once you find the address, copy the Assessor’s Identification Number exactly as shown. You will need it for tax bills, payment lookup, some appeal forms and many records questions.
Use the tax portal after you find the AIN
Open the property tax portal at https://www.propertytax.lacounty.gov/ or the Treasurer and Tax Collector site when you need a tax bill, payment balance, tax payment history or payment option.
Use map search if the address is unclear
Large parcels, hillside lots, condos, newly built units, unincorporated areas and properties with address changes may be easier to confirm on the Assessor map. Use map search when the address search gives multiple possible records.
Address search trick: If the address search returns zero results, remove the directional prefix and street suffix. Type only the street name. For example, remove “N,” “S,” “Ave,” “St,” “Blvd,” apartment number and punctuation. This fixes many county portal address-search failures.
LA County AIN Search — What the Assessor’s Identification Number Means
In Los Angeles County, the AIN is the most important property tax lookup number. It is usually shown as a 10-digit Assessor’s Identification Number and often appears in grouped form on tax bills and official property records. Do not guess it. Copy it from the official Assessor Portal or tax bill.
Where to find your LA County AIN
Assessor Portal
Search by property address and copy the AIN from the official result.
Secured tax bill
The Treasurer and Tax Collector says your secured property tax bill contains the AIN needed for payment.
Property Tax Portal
Use the county’s property tax portal to move from Assessor information to bill information.
Map search
Use map search if you are trying to confirm a parcel visually.
Closing papers
Your deed, title report or escrow papers may show parcel or assessor number details.
Old tax receipt
Prior property tax receipts often include the number needed for future lookup.
AIN vs APN: Many people say APN, parcel number, assessor number and AIN casually. Los Angeles County’s tax payment pages use the term Assessor’s Identification Number. When filling payment or appeal information, use the exact number format shown on the official county page or tax bill.
Can You Search LA County Property Records by Owner Name?
For most public users, the cleanest LA County route is address or AIN. Owner-name research is better handled through recorded documents, title records or official document searches, because assessor display fields and privacy rules can limit or format ownership information differently from what people expect.
Best route if you know the address
Search the address in the Assessor Portal first. Then copy the AIN and use it for tax bill, map, assessment and appeal research.
Best route if you only know a name
Use recorded-document research through the Los Angeles County Registrar-Recorder/County Clerk. Search grantor, grantee, recorded document, deed or transfer information where available.
Why a name may not match
Ownership can appear under a trust, LLC, corporation, estate, spouse name, prior owner, mailing name or title-holding entity. Recent sale data may take time to move across systems.
Do not use paid sites first
Private property sites often repackage public data. Start with the LA County Assessor Portal and official county tax/records tools before paying for any report.
Privacy and accuracy note: Use public property records for legitimate property research, taxes, assessment review and ownership verification. Do not scrape owner lists or rely on private sites when a county record or recorded document is required.
What Shows in a Los Angeles County Assessor Property Record
A Los Angeles County property record can connect your parcel identity, assessment value, map location and tax-bill workflow. The Assessor handles assessment data; the Treasurer and Tax Collector handles payment; the Auditor-Controller handles accounting distribution; the Assessment Appeals Board handles formal value disputes.
AIN
The Assessor’s Identification Number used for lookup and tax payment.
Property address
The official site address connected to the parcel.
Assessed value
The value used for property tax purposes under California assessment rules.
Tax bill route
Connection to bill, balance due, payment history and tax payment tools.
Map context
Parcel map, city/community layer, ZIP, district and reference layers.
Legal search path
Legal-search and recorded-document route when address search is not enough.
Exemption clues
Homeowners’ exemption, disabled veterans’ exemption and other tax relief routes.
Appeal timing
Value dispute path through the LA County Assessment Appeals Board.
Do not confuse assessed value with market value: California assessment rules can make assessed value very different from a Zillow estimate, listing price or recent market opinion. For taxes and appeals, the official assessment record and appeal evidence matter more than a private estimate.
LA County Property Tax Bill Search — Treasurer, Tax Collector and Payment Help
Use the Treasurer and Tax Collector when you need a tax bill, payment balance, tax payment history, installment information, penalties, payment options or public inquiry help. The Assessor does not collect your payment.
View property tax bill
Use the Los Angeles County Treasurer and Tax Collector website to view secured property tax bills and payment information.
Pay online
Online payment requires the Assessor’s Identification Number. eCheck payments are listed as no-cost to the taxpayer, while credit/debit payments carry service fees.
Telephone payment
Los Angeles County accepts credit/debit card payments by phone through the listed toll-free payment number. You need AIN, year and sequence details from your bill.
In-person payment
The Treasurer and Tax Collector lists in-person payment services at 225 North Hill Street, First Floor Lobby, Los Angeles, CA 90012, with county holiday exceptions.
Payment safety tip: When paying LA County property taxes online, start from https://ttc.lacounty.gov/ or the official property tax portal. Avoid sponsored “pay tax” websites unless you understand they are third-party services and not the county’s main payment page.
Need to pay, view a bill or check balance? Use the official Treasurer and Tax Collector site.
Open LA County Tax CollectorLA County Assessor Map Search — Parcel Boundaries, Cities and District Layers
Use the LA County Assessor map search when address search is unclear, when you need parcel context, or when you want to confirm nearby parcels, cities, communities, ZIP codes, school districts, supervisorial districts and reference layers.
Open official map search
Start at https://portal.assessor.lacounty.gov/mapsearch for map-based parcel research.
Use map when address is messy
Los Angeles County contains many cities, communities, hillside parcels, condos and multi-unit properties. Map search helps when a street address returns several matches.
Confirm before paying taxes
Before paying a tax bill, confirm the AIN and address are the right parcel. Similar street names and multiple units can create costly mistakes.
Map is not a survey
Assessor maps are useful for research, but they are not a legal boundary survey. Use recorded maps, title documents and a licensed surveyor for legal boundary decisions.
LA County Property Assessment Appeal — July 2 to November 30 Filing Window
If you disagree with your LA County assessed value, use evidence and the correct appeal route. The LA County Assessment Appeals Board lists regular assessment filing dates from July 2 to November 30 each year for real and personal property assessments. Supplemental, roll change, adjusted and escape assessments have separate 60-day rules.
Review the official assessed value
Use the Assessor Portal to confirm the AIN, property address and assessment details. Make sure you are looking at the correct parcel before starting any appeal.
Check if your issue is value, not billing
Appeals are about assessed value. If the issue is a payment, receipt, penalty or tax balance, the Treasurer and Tax Collector is usually the better office.
Collect market evidence
Useful evidence can include comparable sales, appraisal reports, damage photos, repair estimates, income data for commercial property, or proof that the county record has factual errors.
File with the Assessment Appeals Board
Use https://lacaab.lacounty.gov/ for the LA County Assessment Appeals Board filing system and instructions.
Watch supplemental notice deadlines
Supplemental assessments generally have a shorter 60-day filing period tied to the mailing date or postmark date of the notice or bill. Do not wait for the regular November deadline if your notice is supplemental.
LA County Homeowners’ Exemption, Prop 19, Disabled Veterans and Disaster Relief
Los Angeles County property tax relief is not one single program. The most common homeowner item is the Homeowners’ Exemption, which can reduce taxable assessed value by $7,000 for a qualifying principal residence. Other programs include disabled veterans’ exemption, Proposition 19 base-year transfer rules and disaster relief.
Homeowners’ Exemption
If you own and occupy the home as your principal residence on January 1, you may apply for a $7,000 reduction in assessed value.
Open Homeowners’ ExemptionDisabled Veterans’ Exemption
Disabled veterans and qualifying surviving spouses should use the Assessor’s official exemption page for current eligibility and forms.
Open Disabled Veterans’ ExemptionProposition 19
Prop 19 can affect base-year value transfer and intergenerational transfer rules. Use the Assessor’s page before assuming you qualify.
Open Prop 19 HelpDisaster relief
If your property was damaged by a disaster, use the Assessor’s disaster relief page for misfortune and calamity claim guidance.
Open Disaster ReliefExemption deadline warning: Exemption and relief rules can depend on ownership, occupancy date, claim filing date, disaster date, disability status, veteran status and transfer timing. Always use the latest Los Angeles County Assessor form before filing.
LA County Assessor vs Tax Collector vs Auditor-Controller vs Recorder vs Appeals Board
Los Angeles County property tax questions can involve several offices. Calling the wrong one wastes time. Use this routing guide before you call.
Los Angeles County Assessor
Use for assessed value, AIN, property characteristics, address search, property records, exemptions, ownership/assessment questions and Assessor maps. Phone: 213-974-3211.
Treasurer and Tax Collector
Use for tax bills, payment options, balance due, payment history, penalties, tax installment plans and payment inquiries.
Auditor-Controller
Use for accounting, allocation and distribution functions tied to the county property tax process. It is not the first office for normal parcel lookup.
Registrar-Recorder/County Clerk
Use for deeds, recorded documents, official records, real estate document recording, copies and document history.
Assessment Appeals Board
Use for formal assessed-value disputes after you review records and gather evidence. Regular filing period is July 2 to November 30.
Property Tax Portal
Use the countywide portal when you want a single entry point explaining how Assessor, Auditor-Controller, Treasurer and Appeals Board fit together.
Common LA Property Tax Assessor Search Problems and Fixes
Most lookup failures happen because users start with the wrong office, use the wrong number, include too much address text, confuse assessed value with tax bill, or search private websites before official portals.
Address search gives no result
Remove apartment/unit number, directional prefix, street suffix and punctuation. Try only the street name or use map search. LA County has many duplicate street names, cities and communities.
Tax bill asks for AIN, year and sequence
Use the secured property tax bill or the Assessor Portal to find the AIN. Payment systems may ask for AIN plus bill year and sequence details.
Assessed value looks lower than market value
California property can have assessed values that do not match current market value because of base-year value, Proposition 13 rules and annual value-limit rules.
Recent buyer sees old owner information
Assessment, tax and recorded-document systems may update on different timelines. Confirm recorded documents through the Registrar-Recorder/County Clerk if ownership recently changed.
Private website shows a different value
For tax purposes, the official Assessor and tax portals matter more than private estimates. Use Zillow or Redfin only as market context, not as the official tax record.
Los Angeles County Assessor Office Location, Phone and Map
The Los Angeles County Assessor’s main office is at the Kenneth Hahn Hall of Administration. Verify appointment options and office availability before visiting, because many services can be handled online.
Los Angeles County Assessor — Main Office
500 W. Temple Street, Room 225, Los Angeles, CA 90012
Assessor phone: 213-974-3211
Main office: 500 W. Temple Street, Room 225, Los Angeles, CA 90012
Visit tip: Bring AIN, property address, tax bill, deed/escrow paperwork, exemption letter, assessment notice, appeal document or disaster claim information depending on your question.
Related Property Search Guides That Help LA County Users
These internal links are selected by intent. Use them when you need another Southern California property tax assessor guide, another LA County page variant, or a large-county assessor comparison.
Los Angeles County Assessor Property Search
Use this guide when you specifically want the county assessor search workflow for LA County records.
https://assessorpropertysearch.org/los-angeles-county-assessor-property-search/LA County Assessor Property Search
Helpful for users searching shorter “LA County assessor” wording instead of full Los Angeles County wording.
https://assessorpropertysearch.org/la-county-assessor-property-search/Los Angeles Property Tax Assessor
Useful for users focused on property tax wording, tax bill lookup and assessor/tax collector confusion.
https://assessorpropertysearch.org/los-angeles-property-tax-assessor/Riverside County Assessor Property Search
Relevant for Southern California property owners comparing Inland Empire parcel and tax workflows.
https://assessorpropertysearch.org/riverside-county-assessor-property-search/San Diego County Assessor Property Search
Helpful for another major Southern California county assessor and property tax record workflow.
https://assessorpropertysearch.org/san-diego-county-assessor-property-search/San Bernardino County Assessor Property Tax
Use this when your Southern California parcel or tax research crosses San Bernardino County.
https://assessorpropertysearch.org/san-bernardino-county-assessor-property-tax/Orange County Property Tax Assessor
Good comparison for nearby Orange County property tax and assessor search intent.
https://assessorpropertysearch.org/orange-county-property-tax-assessor/Maricopa County Assessor Property Search
Useful for comparing another high-volume metro assessor portal with address and parcel lookup.
https://assessorpropertysearch.org/maricopa-county-assessor-property-search/Official LA Property Tax Assessor Links
Use these official sources first. This page is an independent guide and does not store Los Angeles County property records. The county portals below are where the actual public records, tax bill tools and appeal systems are maintained.
Los Angeles County Assessor
Main Assessor office page for assessed value, exemptions, property search, maps and contact information.
https://assessor.lacounty.gov/LA County Assessor Portal
Official property search portal with basic search, legal search and map search options.
https://portal.assessor.lacounty.gov/LA County Assessor Map Search
Official map search for parcel maps, reference layers, cities, districts, communities and ZIP layers.
https://portal.assessor.lacounty.gov/mapsearchLos Angeles County Property Tax Portal
Combined county property tax information from Assessor, Auditor-Controller, Treasurer and Appeals Board.
https://www.propertytax.lacounty.gov/LA County Treasurer and Tax Collector
Tax bill, payment, balance due, payment history, installment plan and penalty information.
https://ttc.lacounty.gov/Assessment Appeals Board
Formal assessment appeal filing system and filing-period information.
https://lacaab.lacounty.gov/Homeowners’ Exemption
Official Los Angeles County Assessor exemption page for qualifying principal residences.
https://assessor.lacounty.gov/exemptions/homeowner-exemptionRegistrar-Recorder/County Clerk Records
Official route for recorded documents, deeds, copies and real estate document recording questions.
https://www.lavote.gov/home/recordsFAQ — LA Property Tax Assessor Search
These answers target the real questions LA County property owners, buyers, renters, agents and investors search: address lookup, AIN lookup, tax bill payment, property map, exemption, appeal deadline and recorded documents.
Disclaimer and Source Verification
AssessorPropertySearch.org is an independent property records information guide. We are not Los Angeles County, the Los Angeles County Assessor, the Treasurer and Tax Collector, the Auditor-Controller, the Registrar-Recorder/County Clerk, or the Assessment Appeals Board. We do not store property records or provide legal, tax, appraisal, survey or title advice.
This page explains how to use official Los Angeles County and California property record resources. Property data, tax records, appeal deadlines, exemption rules, payment fees and office hours can change. Always verify the final record, deadline, amount, map layer and application requirement directly with the official county office before making financial, legal or real estate decisions.
Official Sources Verified — May 2026
- https://assessor.lacounty.gov/
- https://portal.assessor.lacounty.gov/
- https://portal.assessor.lacounty.gov/mapsearch
- https://www.propertytax.lacounty.gov/
- https://ttc.lacounty.gov/
- https://ttc.lacounty.gov/pay-your-property-taxes/
- https://lacaab.lacounty.gov/
- https://assessor.lacounty.gov/exemptions/homeowner-exemption
- https://assessor.lacounty.gov/homeowners/contest-assessment
- https://www.lavote.gov/home/records
Find the Right Property Record, Tax Bill, Deed or Assessor Search Route
Use this helper before searching county property records. It helps you choose the right office, prepare the right details, avoid wrong-office mistakes, and review property records safely.
Property Search Route Finder
Choose what you have and what you want to find. The tool will suggest the best search route and common mistake to avoid.
Parcel / APN / PIN Format Helper
Parcel numbers are formatted differently by county. Try these variations if your official search does not return results.
Assessor, Tax Collector, Recorder or GIS?
Select your issue and this tool will show the office that usually handles it.
Simple Property Tax Estimate Helper
This is a general estimate only. State and county tax rules differ, so always verify final bills with the official tax collector, treasurer or county tax office.
Exemption / Appeal Readiness Checklist
Use this before applying for an exemption or challenging a value. Missing proof is one of the biggest reasons users waste time or miss deadlines.
Property Record Review Checklist
Review these fields before relying on any assessor, appraiser, auditor, property appraiser, tax or deed record.