First Decide What “LA” Means
Searching “LA property tax assessor” can mean Los Angeles County, California or the State of Louisiana. For Los Angeles, use the County Assessor for assessed value and AIN records and the Treasurer and Tax Collector for bills and payments.
Louisiana works differently: property assessment is handled parish by parish. This guide routes both searches correctly, then gives Los Angeles users the detailed portal, tax, phone, assessment, appeal and records workflow they are usually looking for.
Quick Answer: LA Property Tax Assessor
If you mean Los Angeles, start with the Los Angeles County Assessor Portal to find the AIN/APN, assessed value and parcel information. Then use the Treasurer and Tax Collector for the tax bill, balance and payment. If you mean Louisiana, identify the parish first and use that parish assessor.
If You Mean Los Angeles County
Los Angeles County splits the property-tax process across several departments. The quickest search depends on whether you need value, a bill, payment status, a deed or an appeal.
Los Angeles County Assessor
Use for AIN/APN, address search, assessed value, assessment history, parcel characteristics, maps, exemptions and assessment-related questions.
Official Los Angeles County Assessor Open Assessor PortalTreasurer and Tax Collector
Use for secured property-tax bills, amounts due, payment history, penalties, duplicate bills, payment options and delinquency questions.
Official Los Angeles County TTC Tax Payment OptionsRegistrar-Recorder/County Clerk
Use for deeds, recorded real-estate documents, document copies, grantor/grantee research and official recording history.
Official Los Angeles County RR/CC Real Estate RecordsAssessment Appeals Board
Use when you formally dispute the assessed value after confirming the parcel and gathering evidence.
Official LA County Assessment Appeals Appeal InformationIf “LA” Means Louisiana
Do not use the Los Angeles links above. Louisiana property assessment is local: each parish has its own elected assessor.
Step 1: Identify the parish
Find the Louisiana parish containing the property—such as Orleans, Jefferson, East Baton Rouge, Caddo, Lafayette, St. Tammany or another parish.
Step 2: Use that parish assessor
The Louisiana Assessors’ Association maintains the statewide assessor directory. Choose the correct parish rather than searching for one generic “Louisiana property assessor.”
Louisiana Assessors’ Association Find Louisiana AssessorHow to Search Los Angeles County Property Tax Records
Open the official Assessor Portal
Start with the Los Angeles County Assessor Portal when you need the parcel, AIN/APN, assessed value or property characteristics.
Search by address or AIN
If you know the 10-digit AIN/APN, use it. Otherwise search the street address and identify the correct property result.
Confirm the parcel
Check the situs address, use type, parcel status, land/building information and map location before using the assessment or tax information.
Save the AIN/APN
The AIN is the key identifier for the Treasurer and Tax Collector, assessment questions and many other LA County property-tax tasks.
Move to the correct county department
Use TTC for the amount due, the Recorder for deeds and the Assessment Appeals Board for a formal value appeal.
Verify year and document type
Before paying or appealing, confirm the tax year, assessment type, bill type and property identifier. Current roll, supplemental bills and historical records are not interchangeable.
AIN, APN and Parcel Number: Same LA County Property Identifier
AIN
Assessor’s Identification Number. LA County commonly uses this term in its tax and payment systems.
Typical format: 1234-567-890
APN
Assessor Parcel Number. LA County guidance treats AIN and APN as synonymous for the same 10-digit real-property identifier.
Where to find your AIN
- Official Assessor Portal after searching the property address.
- Annual secured property-tax bill.
- Supplemental property-tax bill.
- Recorded deed or escrow/title paperwork.
- Assessor inquiry or district-office assistance.
Can You Search LA County Property by Owner Name?
Not through the public online Assessor website. Los Angeles County explains that privacy restrictions prevent it from offering a public internet owner-name search.
If you know the property address
Search the address in the Assessor Portal, save the AIN and contact the Assessor if you need owner information for that specific parcel.
If you know only a person’s name
Recorded real-estate records are indexed by name and recording year, but the Registrar-Recorder does not provide the complete real-estate index online. In-person/document-request procedures may be required.
What the Los Angeles Assessor Property Record Shows
Current Assessor Portal parcel pages can contain much more than one assessed-value number.
Field |
What it means |
Common mistake |
|---|---|---|
AIN / APN |
10-digit real-property identifier. |
Paying or filing against a similar address without matching the AIN. |
Situs Address |
Physical address carried for the parcel. |
Confusing it with the owner’s mailing address. |
Use Type / Code |
Assessor classification information. |
Treating an Assessor use code as final zoning approval. |
Parcel / Tax Status |
Shows current parcel and tax-status information. |
Assuming an Assessor tax-status label replaces the TTC payoff/balance system. |
Exemption |
Can show exemption information carried on the assessment record. |
Assuming a recently filed exemption is already processed. |
Land / Building Details |
May include square footage, units, beds/baths, year built and other assessment characteristics. |
Treating Assessor data as a home inspection or legal survey. |
Current Roll / Roll Preparation |
Distinguishes current assessment-roll values from values being prepared for another roll. |
Comparing numbers from different roll stages without checking the year. |
Assessment History |
Historical Assessor value and roll activity. |
Treating it as a complete market-sale or chain-of-title history. |
LA Property Tax Search: Bill, Balance and Payment
When your question is “How much do I owe?” stop using the Assessor as the final source. The Treasurer and Tax Collector manages the actual secured tax bill and payment.
Task |
Correct system |
|---|---|
Find assessed value |
LA County Assessor Portal. |
View amount due |
Treasurer and Tax Collector secured-tax lookup. |
Pay property tax |
Official TTC payment system. |
View payment history |
Property Tax Portal / TTC payment-history service. |
Request duplicate bill |
LA County Property Tax Portal/TTC. |
Penalty or installment-plan issue |
Treasurer and Tax Collector. |
Annual secured property-tax schedule
Installment |
Normal due date |
Normal delinquency date |
|---|---|---|
First |
November 1 |
After December 10, subject to weekend/holiday rules. |
Second |
February 1 |
After April 10, subject to weekend/holiday rules. |
Current payment fees
Payment method |
Current published TTC terms |
|---|---|
Online eCheck |
No service cost to the taxpayer; bank account must support ACH. |
Credit/debit card |
2.22% service fee, minimum $1.49 per transaction. |
Telephone card payment |
1-888-473-0835; AIN, Year and Sequence are required; 2.22% fee, minimum $1.49. |
In person |
225 N. Hill Street, First Floor Lobby, Los Angeles; cash/check/money order/cashier’s check/cards accepted under current office rules. |
How Los Angeles Property Tax Assessment Works
The Assessor does not simply multiply today’s home value by a tax percentage. California uses an acquisition-based assessment system with Proposition 13 and other statutory rules.
1. Assessor
Establishes assessed value, maintains the assessment roll and applies qualifying exemptions.
2. Auditor-Controller
Extends the roll by applying the general tax levy, voter-approved debt rates and direct assessments.
3. Tax Collector
Produces/collects the individual secured and unsecured property-tax bills.
Why assessed value may be below market value
- California Proposition 13 establishes an acquisition-based base-year value system.
- Factored base-year value generally cannot rise more than 2% per year before qualifying ownership/new-construction changes.
- A change in ownership can establish a new base-year value.
- New construction can create additional assessed value.
- A Proposition 8 decline-in-value assessment can temporarily reflect market value below the factored base-year value.
- Exemptions can reduce the taxable assessed value applicable to ad valorem property tax.
2026 Los Angeles County Property Assessment Appeal
As of August 12, 2026, the regular LA County assessment-appeal filing period is open.
Assessment type |
Filing rule |
|---|---|
Regular assessment |
July 2–November 30. |
Supplemental / adjusted / escape / roll correction |
Generally within 60 days of the applicable notice/bill mailing or postmark rule. |
Misfortune & calamity reassessment |
Appeal period is tied to the Assessor’s proposed reassessment notice; check the specific notice immediately. |
Prepare before filing
- AIN/APN.
- Assessment notice or tax-bill type.
- Your opinion of value.
- Comparable sales appropriate to the valuation date.
- Photos and repair evidence when condition is relevant.
- Evidence of factual errors in land or building characteristics.
- Commercial income/expense evidence when appropriate.
- Correct filing fee or hardship-waiver documentation.
LA County Homeowners’ Exemption
California’s Homeowners’ Exemption can reduce taxable assessed value by up to $7,000 for a qualifying owner-occupied principal residence.
Basic eligibility concept
- You own the qualifying dwelling.
- It is your principal residence.
- Eligibility is tied to the January 1 lien date.
- A one-time claim is normally filed with the county assessor.
Full exemption timing
California guidance states that first-time claimants should file by February 15 to receive the full exemption for that year. Late filing may have different treatment.
LA Property Tax Records vs Deeds and Ownership Records
The Assessor, tax bill and deed record are three different records. Use the one that answers your actual question.
You need |
Use |
|---|---|
Assessed value / parcel characteristics |
Los Angeles County Assessor Portal. |
Tax amount / payment status |
Treasurer and Tax Collector. |
Deed / recorded ownership document |
Registrar-Recorder/County Clerk. |
Owner-name history |
Recorder real-estate indexes/document research, not the public Assessor web search. |
Formal assessed-value dispute |
Assessment Appeals Board. |
Los Angeles Property Tax Assessor Phone Numbers
Office |
Use it for |
Current contact |
|---|---|---|
LA County Assessor |
AIN, assessed value, property information, exemptions and assessment questions. |
(213) 974-3211 Toll-free: (888) 807-2111 500 W. Temple St., Room 225, Los Angeles, CA 90012 |
Treasurer and Tax Collector |
Tax bills, payments, balances, penalties and payment history. |
(213) 974-2111 Toll-free: (888) 807-2111 225 N. Hill St., First Floor Lobby, Los Angeles, CA 90012 |
Assessment Appeals Board |
Formal assessment appeal and case questions. |
(213) 974-1471 500 W. Temple St., Room B4, Los Angeles, CA 90012 |
Registrar-Recorder/County Clerk |
Recorded real-estate records and copies. |
(800) 201-8999 12400 Imperial Highway, Norwalk, CA 90650 |
Assessor call script
Tax Collector call script
Common LA Property Tax Search Problems
Problem |
Best fix |
|---|---|
Search results are about Louisiana |
Add “Los Angeles County” or “lacounty” to the query and use the official Assessor Portal. |
You meant Louisiana but see Los Angeles |
Search the specific Louisiana parish assessor. |
Address does not find the parcel |
Simplify the address, remove unit/suffix details or use the parcel map/AIN. |
Owner-name search is missing |
This is intentional on the public LA County Assessor website; use address/AIN and the official owner/Recorder route. |
Assessed value looks different from market value |
Review Proposition 13 base-year rules, change-of-ownership history and any Proposition 8 decline-in-value status. |
Tax bill cannot be located |
Use TTC rather than the Assessor and verify the AIN, tax year and current online availability period. |
Recent purchase shows unexpected value |
Check for change-of-ownership reassessment and supplemental assessment activity. |
Need a legal ownership record |
Use the Registrar-Recorder/County Clerk rather than relying on the Assessor parcel summary. |
Official LA Property Tax Tools
Assessor Portal
AIN/APN, address, assessed value and parcel details.
Assessor SearchProperty Tax Portal
One entry point for valuation, tax bill, payments, FAQs and department routing.
Property Tax PortalTax Payment
View current payment options and make a secured property-tax payment.
Pay Property TaxAssessment Appeal
2026 filing period, fee, online application and case information.
Assessment AppealsRecorded Real Estate
Deed and real-estate record viewing/request instructions.
Recorder RecordsLouisiana Assessor Directory
Find the assessor for the Louisiana parish containing the property.
Louisiana AssessorsLA Property Tax Assessor FAQs
Does “LA property tax assessor” mean Los Angeles or Louisiana?
It can mean either. Los Angeles County uses the Los Angeles County Assessor and Treasurer and Tax Collector. Louisiana uses separate elected assessors for each parish, so Louisiana users must first identify the parish containing the property.
What is the official Los Angeles property tax assessor portal?
The official Los Angeles County Assessor Portal is portal.assessor.lacounty.gov. Use it to search public parcel and assessment information by AIN/APN or property address.
What is the Los Angeles County Assessor phone number?
The Los Angeles County Assessor public-service number is (213) 974-3211. The countywide toll-free property-tax information number is (888) 807-2111.
Can I search Los Angeles County property by owner name?
No public online owner-name search is provided through the LA County Assessor website. Search a known property by address or AIN and use the Assessor or Registrar-Recorder process when owner or recorded-document information is required.
What is an AIN in LA property tax records?
AIN means Assessor’s Identification Number. It is the 10-digit real-property identifier Los Angeles County uses for assessment and property-tax workflows. APN is another term for the same parcel number.
Where do I search or pay Los Angeles County property taxes?
Use the Los Angeles County Treasurer and Tax Collector for the actual secured tax bill, amount due, payment history and payment. Do not use the Assessor’s assessed value as the amount to pay.
When are Los Angeles County secured property taxes due?
The first installment is normally due November 1 and becomes delinquent after December 10. The second installment is due February 1 and becomes delinquent after April 10, subject to applicable weekend, holiday or special rules.
What is the 2026 Los Angeles County assessment appeal deadline?
The regular 2026 assessment-appeal filing period runs from July 2 through November 30, 2026. Supplemental and other changed assessments can have different filing deadlines tied to the specific notice or bill.
Does Los Angeles County have a Homeowners’ Exemption?
Yes. A qualifying owner-occupied principal residence may receive up to a $7,000 reduction in taxable assessed value through California’s Homeowners’ Exemption. First-time claimants generally file by February 15 for the full exemption for that year.
How do I find a Louisiana property tax assessor?
Identify the Louisiana parish where the property is located and use that parish’s assessor. Louisiana has 64 parish assessors rather than one statewide assessor responsible for every property.
Use the Right “LA” Before You Search
If the property is in Los Angeles County, start with the Assessor Portal, save the 10-digit AIN/APN and then move to the Tax Collector, Recorder or Appeals Board depending on your task. If the property is in Louisiana, identify its parish first and use that parish assessor.
This simple jurisdiction check prevents the most common “LA property tax” mistake: opening an accurate government website for the wrong LA.
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.