Los Angeles County Property Search and Assessment Guide
Search Los Angeles County Parcel Values, Maps, Assessments and Tax Records
The Los Angeles County Assessor establishes assessed values, maintains parcel and building information, processes ownership changes and applies eligible exemptions. The Assessor does not collect property-tax payments. Tax bills and payment history are handled by the Treasurer and Tax Collector, while deeds, liens and recorded land documents are maintained by the Registrar-Recorder/County Clerk.
This 2026 guide shows how to search by Assessor’s Identification Number or address, decode current-roll and roll-preparation values, identify supplemental assessments, review Proposition 13 and Proposition 8 treatment, file an appeal before the correct deadline, request disaster relief and find deed or ownership records without relying on a generic third-party lookup page.
Search by 10-digit AIN or property address
Understand current roll, base value and tax status
File a 2026 appeal before November 30
Separate assessment, billing and deed records
County Assessor
Jeffrey Prang
Assessor toll-free
888-807-2111
Public Service Section
500 W. Temple Street
Tax Collector
213-974-2111
Editorial verification
August 6, 2026
Los Angeles County Regular Assessment Appeal Period Is Open
The 2026 regular-assessment filing period runs from July 2 through November 30, 2026. The online Assessment Appeals Board portal currently states that the deadline ends at midnight Pacific Time on November 30, 2026.
Regular 2026 roll value
File during the July 2–November 30 period when challenging a regular real or personal property assessment.
Supplemental or adjusted assessment
The filing period is normally 60 days from the later applicable notice or postmark date printed on the assessment notice or bill.
Misfortune and calamity reassessment
File an appeal within six months after the mailing date of the Assessor’s proposed reassessment notice.
Pay while appealing: Filing an assessment appeal does not suspend the tax bill. Pay the required amount by the tax deadline to prevent penalties, then follow the refund process if the final assessment is reduced.
Assessor, Auditor-Controller, Tax Collector and Recorder Roles
Los Angeles County’s property-tax system involves several departments. The Assessor determines value, but the amount billed is produced and collected through other county offices.
County Assessor
- Assessed land and improvement values
- AIN and parcel information
- Building and land characteristics
- Change in ownership and new construction
- Homeowners’ and veteran exemptions
- Decline-in-value and disaster relief review
Auditor-Controller and Tax Collector
- One-percent general tax levy
- Voted debt and direct assessments
- Annual and supplemental tax bills
- Current and delinquent balances
- Payments, penalties and payment history
- Refund processing after eligible corrections
Registrar-Recorder/County Clerk
- Deeds and deeds of trust
- Liens and releases
- Recorded real estate instruments
- Document copies and certification
- Property document recording
- Historical real estate records from 1850
Important division: The Assessor does not calculate payment penalties or accept tax payments. The Tax Collector cannot correct building square footage, base-year value or exemption eligibility.
California and Florida use different office names: California counties use an Assessor and Treasurer-Tax Collector structure. Florida commonly uses a Property Appraiser and Tax Collector. See this existing Volusia County Property Appraiser guide for a comparison of the Florida process.
Choose the Los Angeles County Property Task You Need
Search a parcel by address
Use the official Assessor Portal and enter the street address to locate the AIN and parcel record.
Search by AIN or APN
Enter the ten-digit identifier in four-three-three format to reach the exact parcel.
Check current assessed value
Compare land, improvements, total value, base value, roll year and assessment history.
Check or pay property taxes
Use the Treasurer and Tax Collector with the AIN and applicable bill information.
File a value appeal
Identify the bill or assessment type, use the correct deadline and prepare market evidence.
Request a deed or lien copy
Use the Registrar-Recorder’s real estate record request process rather than the Assessor Portal.
Jump to Your Los Angeles County Property Task
How to Search Los Angeles County Assessor Property Records
Open the official Los Angeles County Assessor Portal.
Use portal.assessor.lacounty.gov.
Select the AIN or address search field.
The public portal supports searching by Assessor’s Identification Number or property address.
Enter a simplified street address.
Start with the street number and main street name. Remove apartment numbers or unnecessary punctuation when no result appears.
Use the AIN when available.
Copy all ten digits from a tax bill, deed, title report or prior Assessor record.
Open every plausible parcel.
Condominiums, new subdivisions, commercial property, vacant land and adjoining lots can produce multiple results.
Read the portal’s effective date.
Note the “Assessor Records Effective” date because public parcel details are updated on a schedule and may not reflect a same-day filing.
Review summary and roll values.
Check situs address, use type, parcel status, tax status, exemption, land value, improvement value and total value.
Open parcel map and assessment history.
Compare current-roll values with roll preparation, base-year and historical assessments.
Save a dated copy.
Print or save the record before an appeal, correction, purchase, refinance or tax inquiry.
Address not found? Try the nearest cross streets, review the deed or title report for the AIN, or contact the Assessor Help Desk.
Why You Cannot Search Los Angeles County Property by Owner Name Online
The public Assessor Portal does not offer an online owner-name search. Los Angeles County explains that privacy-related restrictions prevent owner information from being displayed through the public website in the same way as an address or AIN search.
Search online by address
Enter the property address, then use the parcel detail page to identify the AIN and responsible Assessor office.
Request a specific-property response
Submit the property address and AIN through the Assessor’s contact or public inquiry process.
Visit an Assessor office
Owner information may be available through an in-person public-record inquiry, subject to applicable restrictions.
A third-party owner-search result is not an official Assessor record. Confirm ownership through the latest recorded deed and the responsible county office before relying on a name for legal, lending or transaction purposes.
How to Read the Los Angeles County 10-Digit AIN
The Assessor’s Identification Number is the main indexing number used for Los Angeles County property-tax purposes. AIN and APN are commonly used to describe the same ten-digit parcel identifier.
1234
Four-digit map book number
−
567
Three-digit page number
−
890
Three-digit parcel number
Where to find the AIN
- Annual secured property-tax bill
- Supplemental property-tax bill
- Recorded acquisition deed
- Title report or title-insurance file
- Official Assessor address search
- Assessor district office assistance
New development warning: A new condominium or subdivision parcel may not yet appear under the expected address. Use the deed, legal description, title report and pre-subdivision parcel information when necessary.
Six Fields to Match Before Using a Los Angeles County Parcel Record
AIN
Match all ten digits.
Situs address
Confirm the location.
Parcel status
Active, deleted or exempt.
Use type
Residential, commercial or other.
Roll year
Current versus preparation.
Responsible office
Use the district shown.
Do not pay using address alone: Multiple units, parcel changes, deleted parcels, supplemental sequences and new development can create several related tax records.
Los Angeles County Assessor Portal Field Decoder
| Portal field | Meaning | What to verify |
|---|---|---|
| Situs address | The physical address associated with the parcel. | Do not confuse it with the owner’s mailing address. |
| Use type | Broad Assessor classification such as single-family, multifamily, commercial or institutional. | Check whether actual use and displayed classification agree. |
| Tax rate area | Geographic code used to assemble applicable tax rates and voter-approved debt. | Nearby properties can have different tax rate areas. |
| Parcel status | Shows whether the parcel is active, deleted or in another status. | A deleted parcel may have been replaced after a split, combination or mapping change. |
| Tax status | Shows a general current, defaulted or exempt status indicator. | Use the Tax Collector for the complete live payment balance. |
| Exemption | Displays an enrolled exemption such as the Homeowners’ Exemption. | Confirm eligibility year and current principal-residence status. |
| Building square feet | Assessor-maintained improvement area used for assessment purposes. | Compare additions, demolition, permits and reliable plans. |
| Year built | Calendar year when at least half of the original construction was complete. | Separate this from effective year built. |
| Effective year | Adjusted age reflecting major rehabilitation or later improvement history. | A remodel can affect effective age without changing original year built. |
| Land and improvement value | Separate assessed components that combine into total real-property value. | Compare current roll, roll preparation and base-year information. |
Parcel Maps, Sales Information and Legal Descriptions
Assessor maps are not surveys
They are prepared for assessment and recorded-document reference purposes. Do not use them to establish a legal boundary or resolve a neighbor dispute.
Boundary description is not a legal description
The portal’s assessment-oriented boundary description may mention lot and tract information but should not replace the recorded deed.
Recent sales may be incomplete
The public portal does not display every confidential or verified transaction record used by the Assessor.
VAC/VIC address
Vacant land can use a proximity notation indicating a nearby street, intersection or landmark rather than an exact situs address.
Recent parcel change activity
The portal may show splits, combinations or other parcel changes processed during a limited recent period.
Obtain the legal description
Order the acquisition deed from the Registrar-Recorder, consult a title company or retain a licensed land surveyor.
Boundary disputes require more than an Assessor map. Use a recorded survey, licensed surveyor or qualified legal professional when the exact property line matters.
How Los Angeles County Assessed Value Is Built
Base-year value
Usually established by a reassessable change in ownership or qualifying new construction.
Land and improvements can have separate base years.
Annual inflation factor
Proposition 13 generally limits annual inflation growth to no more than two percent.
A lower factor may apply in a particular year.
Current assessed value
Enrolled value after applicable base-year changes, inflation, exclusions and temporary reductions.
Compare land and improvement components.
Net taxable value
Current assessed value after qualifying exemptions.
The Auditor-Controller applies rates and direct assessments.
What Proposition 13 generally limits
- Annual inflation growth in assessed value is generally limited to no more than 2%.
- A reassessable ownership change can create a new base-year value.
- New construction can create a separate base value for the added improvement.
- Excluded transfers may preserve or transfer a qualifying base-year value.
- A temporary Proposition 8 reduction can move differently from the normal 2% limit.
A value increase over 2% is not automatically an error. It may result from a new base year, new construction, restoration from a temporary decline-in-value assessment, a supplemental event or correction to omitted property.
Los Angeles County Supplemental Assessments Explained
A change in ownership or completed new construction can trigger a supplemental assessment that measures the difference between the prior taxable value and the new value for the remaining portion of the fiscal year.
Ownership or construction event
A deed records, ownership interest changes or qualifying construction is completed.
Assessor reviews event
The Assessor determines whether reassessment applies and establishes the new value.
Supplemental notice
The owner receives value information that may carry a separate appeal period.
One or two tax bills
Depending on the event date, the county may issue one or two supplemental bills.
Owner pays separately
Supplemental taxes are commonly outside the ordinary mortgage impound payment.
Supplemental bills are additional
They do not replace the annual secured bill unless the county specifically issues an adjusted replacement bill.
Delivery can take time
New owners may receive supplemental bills several months after acquiring the property.
Deadlines differ
Use the due and delinquency dates printed on each supplemental bill.
Escrow warning: Do not assume the mortgage company will pay a supplemental bill. Contact the lender and compare the impound account with each individual bill.
How to Search Los Angeles County Property Tax Records
Find the ten-digit AIN.
Use the Assessor Portal, deed, title report or property-tax bill.
Open the official Property Tax Portal or Tax Collector.
Use the county’s Property Tax Portal or Treasurer and Tax Collector site.
Select tax bill, payment history or payment service.
Use the tool matching the exact task rather than relying on the Assessor’s value record.
Search with the AIN and bill details.
Confirm year, sequence number, bill type and property before acting.
Review every bill type.
Annual, supplemental, adjusted, escape, unsecured and prior-year bills can have different deadlines.
Save the payment history.
Retain a dated copy for escrow, closing, refund, lender or penalty-cancellation questions.
AIN and bill sequence are different: The AIN identifies the parcel. The year and sequence identify the specific annual, supplemental or adjusted bill.
2026–2027 Annual Secured Tax Dates and Payment Methods
Annual bill mailed
The Tax Collector generally prepares and mails annual secured bills in October.
First installment due
The first installment becomes due November 1.
First delinquency date
Payment must be received or timely postmarked by the applicable deadline.
Second installment due
The second installment becomes due February 1, 2027.
Second delinquency date
A late second installment can receive penalty and additional cost.
Fiscal year ends
Remaining unpaid secured taxes can become tax-defaulted after the fiscal year.
Free online eCheck
The county publishes no service charge for qualifying eCheck payments. The bank account must be ACH-enabled.
Credit or debit card
Online and in-person card payments carry a 2.22% service fee with a published minimum of $1.49.
In-person payment
The Tax Collector accepts several payment methods at 225 N. Hill Street during published office hours.
Mail payment
Include the payment stub and write the AIN and year/sequence number on the payment.
Online deadline
Online payments can generally be submitted through 11:59 p.m. Pacific Time on the delinquency date.
Retain confirmation
Save the transaction number, amount, date, AIN, bill sequence and payment method.
Qualifying eCheck
$0
No county service charge is listed for a qualifying ACH-enabled eCheck.
Credit or debit card
2.22%
Published minimum card service charge: $1.49 per transaction.
Bank debit-block warning: A bank account with an ACH debit block can reject the eCheck unless the owner authorizes Los Angeles County’s published company identification information with the bank.
How to File a Los Angeles County Assessment Appeal
Identify assessment type
Determine whether the issue is regular, supplemental, adjusted, escape or calamity-related.
Gather evidence
Prepare comparable sales, factual corrections, photographs and ownership or construction records.
File and pay fee
Submit the application during the correct period with the $46 non-refundable filing fee or fee-waiver request.
Prepare for hearing
Organize evidence, monitor notices and attend the in-person or virtual hearing route assigned.
| Assessment type | Filing period | Action |
|---|---|---|
| Regular assessment | July 2 through November 30, 2026 | File through the Assessment Appeals Board portal or approved paper route. |
| Supplemental assessment | Within 60 days of the later applicable notice or postmark date | Use the date printed on the notice or supplemental bill. |
| Adjusted, roll-change or escape assessment | Within 60 days of the applicable mailing or postmark date | Identify the exact bill or notice being appealed. |
| Misfortune and calamity reassessment | Within six months of the proposed reassessment notice | Attach the Assessor notice and damage-related evidence. |
Appeal filing fee: Los Angeles County currently requires a $46 non-refundable application fee. A fee-waiver request may be submitted with the application when payment would cause undue financial hardship.
Written findings: Written Findings of Fact are optional and carry a separately published minimum fee of $492 per parcel and issue. Request them only after understanding the cost and purpose.
“I am calling about Los Angeles County AIN __________ and assessment type __________. The notice date is __________. Please confirm the filing deadline, whether the application requires a specific bill sequence and what evidence should be attached.”
Evidence That Can Strengthen a Los Angeles County Appeal
- Assessor Portal property-detail printout
- Annual or supplemental assessment notice
- Comparable sales near the valuation date
- Photographs showing condition or damage
- Repair bids or engineering reports
- Floor plans and reliable measurements
- Building permits or demolition records
- Deed and change-in-ownership documents
- Appraisal or market analysis
- Income and expense records when relevant
- Evidence of incorrect property use
- Prior Assessor correspondence
| Issue | Useful evidence | Common mistake |
|---|---|---|
| Market value | Comparable sales adjusted for location, size, condition and property type. | Using current listing prices unrelated to the required valuation date. |
| Building size | Permits, plans, appraisal sketch or verified measurements. | Relying only on a real-estate advertisement. |
| Condition | Dated photographs, inspection reports and repair estimates. | Claiming deferred maintenance without documenting its effect. |
| Ownership event | Recorded deed, trust documents and exclusion claim forms. | Assuming every family transfer is automatically excluded. |
| Disaster damage | Damage photos, repair estimates, insurance records and Assessor relief correspondence. | Waiting until ordinary appeal deadlines expire without checking the calamity route. |
Los Angeles County Decline-in-Value Review
A Proposition 8 decline-in-value assessment may apply when the property’s market value on January 1 is below its Proposition 13 factored base-year value.
Temporary—not a new permanent base
The lower assessment applies while market value remains below the factored base-year amount.
Reviewed annually
The Assessor can review the property each year and increase or decrease the Proposition 8 value as the market changes.
Increase can exceed 2%
Restoration from a temporary reduction is not limited to 2% so long as the value does not exceed the factored Proposition 13 amount.
Do not confuse two routes: A Decline-in-Value request submitted to the Assessor and a formal Assessment Appeals Board application are separate processes. Protect the formal November 30 appeal deadline when the value dispute remains unresolved.
Homeowners’ and Disabled Veterans’ Exemptions
Homeowners’ Exemption
A qualifying owner-occupied principal residence may receive a $7,000 reduction in taxable value through a one-time claim filing.
Disabled Veterans’ Basic Exemption
The 2026 inflation-adjusted basic exemption amount is $180,671 for a qualifying principal residence.
Disabled Veterans’ Low-Income Exemption
The 2026 low-income exemption amount is $271,009, subject to qualifying household-income and annual filing requirements.
Homeowners’ Exemption checks
- Owner occupied the home as principal residence
- Eligibility existed on the applicable January 1 lien date
- One-time claim was filed with the Assessor
- Exemption appears on the correct parcel
- Ownership or occupancy has not changed
- Supplemental bill treatment was reviewed after purchase
Exemptions affect taxable value—not the recorded ownership title. File ownership documents with the Recorder and exemption claims with the Assessor.
Proposition 19 Base-Year Transfers and Family Transfers
Age 55 or older
A qualifying owner may transfer a base-year value to a replacement principal residence under Proposition 19 rules.
Severely disabled owner
Qualifying severely disabled owners may use the Proposition 19 replacement-home base-year transfer provisions.
Wildfire or natural-disaster victim
A qualifying owner whose principal residence was substantially damaged may be eligible for a replacement-home transfer.
Parent-child or grandparent-grandchild
The exclusion is limited and generally requires a qualifying family home or family farm plus timely claim compliance.
Do not record first and investigate later: Adding or removing a person from title can cause a reassessment unless an exclusion applies. Review the transaction with a qualified tax or legal advisor before recording.
Claim filing matters: A family relationship alone does not automatically preserve the prior assessment. The property, transferee use, value limits, timing and claim documents must satisfy Proposition 19.
Property Damage, Wildfire Relief and No-Cost Record Copies
Misfortune and calamity reassessment
Owners of qualifying damaged property may request temporary reassessment based on the loss in value.
Document the damage
Preserve dated photographs, repair estimates, insurance records, inspection reports and the date of damage.
Watch separate deadlines
Assessor relief, a proposed reassessment appeal and tax-payment obligations can have different deadlines.
Replacement property under Proposition 19
Eligible disaster victims may have a base-year transfer route for a replacement principal residence.
No-cost property records
The Registrar-Recorder currently offers eligible fire-impacted residents no-cost property-record copies for recovery needs.
Tax bills may continue
Do not stop paying merely because a disaster-relief claim is pending. Review each current bill with the Tax Collector.
Fire record assistance: Eligible residents can contact the Recorder at 800-201-8999, option 3, regarding fire-related property-record assistance.
How to Correct Los Angeles County Assessor Record Errors
Incorrect building information
Prepare permits, plans, measurements, photographs and the Property Data Change Request.
Wrong mailing address
Submit the Assessor’s mailing-address change route and retain the confirmation.
Ownership has not updated
Confirm the deed was recorded and provide the document information to the Assessor.
Parcel does not appear
Use the deed, title report, legal description or prior parcel number for a new development or parcel change.
Property use is wrong
Gather occupancy, lease, permit or business-use evidence tied to the correct classification.
Tax payment is wrong
Contact the Tax Collector rather than filing a property-data correction with the Assessor.
Save the current portal record.
Preserve the incorrect field and records-effective date.
Write the exact correction requested.
Identify the existing entry and the correct replacement information.
Attach direct proof.
Use a deed for ownership, permit for demolition, plan for area or photograph for condition.
Submit the correct Assessor form or inquiry.
The mapping help system directs factual property-data corrections to Property Data Change Request form ASSR-129.
Retain submission evidence.
Save the email, postal tracking, form copy and supporting records.
Recheck the Assessor and tax systems.
A value correction may require additional processing by the Auditor-Controller before a bill or refund changes.
How to Request Los Angeles County Deeds, Liens and Recorded Documents
The Registrar-Recorder/County Clerk maintains Los Angeles County real estate records dating to 1850. The office does not provide a public internet index that can be searched online by address.
Identify the recorded owner or party name.
Real estate records are indexed by grantor or grantee name and recording year rather than by street address.
Determine the approximate recording year.
Use the purchase date, deed, title report or Assessor event history to narrow the search.
Select online, in-person, mail or fax request.
The Recorder offers several copy-request routes, but not a public online document index.
Request the complete document.
The Recorder does not sell only selected pages from a recorded document.
Choose plain or certified copy.
Use certification when required for court, lending, title or government purposes.
Compare the legal description.
Match the deed’s legal description with the Assessor AIN, parcel map and title information.
Online copy request
Online requests are processed through the Recorder’s authorized request route and may require up to 20 working days.
In-person viewing
Records from 1851–1957 and 1958–present are available in separate areas at the Norwalk headquarters.
Recorder telephone
Call 800-201-8999, option 3, for real estate records after recording.
Title-search warning: Public-record access does not guarantee clear title or identify every legal risk. Use a title company or qualified attorney when an insured or legal title examination is required.
Which Los Angeles County Records Should Different Users Review?
| User situation | Records to review | Best next action |
|---|---|---|
| Current homeowner | AIN, current roll, exemption, land and improvement values, tax bill and payment history. | Correct factual errors before filing a valuation appeal. |
| New property buyer | Deed, AIN, annual bill, supplemental bills, exemption status and escrow records. | Prepare for one or two supplemental bills after the purchase. |
| Condominium buyer | Unit-specific AIN, deed, development parcel history and individual tax bill. | Do not pay using the master parcel or another unit’s address record. |
| Mortgage escrow customer | Annual bill, supplemental bills, information-only notice and lender disbursement history. | Confirm which bills the lender will and will not pay. |
| Appeal filer | Assessment notice, parcel record, comparable sales and condition evidence. | File during the applicable period and pay the tax bill on time. |
| Disaster-affected owner | Damage evidence, Assessor relief form, proposed reassessment notice and tax bills. | Track relief, appeal and payment deadlines separately. |
| Parent-child transfer | Deed, relationship evidence, principal-residence status and Proposition 19 claim. | Confirm exclusion eligibility before assuming the old base value remains. |
| Boundary or title researcher | Recorded deed, legal description, survey, parcel map and lien documents. | Use the Assessor map only as an assessment reference—not as a legal survey. |
Los Angeles County Property Office Contacts
Assessor Help Desk
Toll-free: 888-807-2111
helpdesk@assessor.lacounty.gov
helpdesk@assessor.lacounty.gov
Responsible district office: The Assessor Portal displays the district, region and contact information responsible for the selected parcel. Use that parcel-specific office when available.
Los Angeles County Property Search Problems and Fixes
| Problem | Practical fix | Correct office |
|---|---|---|
| Address returns no parcel | Simplify the address, use nearby cross streets or find the AIN on the deed or title report. | Assessor |
| Cannot search by owner name | Use address or AIN, then request specific owner information through an Assessor inquiry or office visit. | Assessor |
| Parcel shows deleted | Review recent parcel changes and identify the replacement AIN after a split or combination. | Assessor |
| Building information is wrong | Submit Property Data Change Request ASSR-129 with permits, plans, measurements or photographs. | Assessor |
| Tax balance differs from Assessor record | Separate assessed value from tax billing, direct assessments, penalties and payment history. | Tax Collector and Auditor-Controller |
| New owner received prior owner’s name | Confirm deed recording and use the AIN to pay the correct bill even while ownership updates. | Recorder, Assessor and Tax Collector |
| Supplemental bill was unexpected | Compare purchase date, prior value, new value, fiscal proration and escrow coverage. | Assessor and Tax Collector |
| No annual bill received | Request a duplicate bill and verify the mailing address before the delinquency date. | Tax Collector and Assessor |
| Recent sale is missing | Public portal sales information may be incomplete or confidential; verify the recorded deed. | Recorder and Assessor |
| Need legal boundary | Obtain a recorded survey or hire a licensed surveyor. Do not use the Assessor map as a survey. | Recorder or licensed surveyor |
| Appeal filed but tax is due | Pay the bill by the deadline and preserve proof while the appeal remains pending. | Tax Collector and Appeals Board |
| Fire damage affects value | File the applicable misfortune-and-calamity request and document damage promptly. | Assessor |
“I am researching Los Angeles County AIN __________ at __________. The Assessor record effective date is __________. The record shows __________, but my deed, permit, tax bill or property evidence shows __________. Please confirm the responsible office and required form.”
Los Angeles County Property Records Action Center
Use these official routes after confirming the AIN, assessment year, bill type and responsible county department.
Search Assessor Parcel
Prepare the ten-digit AIN or complete property address.
Check or Pay Tax Bill
Verify AIN, year, sequence, amount and processing method.
File Assessment Appeal
Prepare the notice, bill type, evidence and filing fee or waiver.
Request Recorded Document
Prepare party name, recording year and document information.
Los Angeles County Property Assessor 2026 FAQs
1. How do I search Los Angeles County Assessor property records?
Open the official Los Angeles County Assessor Portal and search by the ten-digit Assessor’s Identification Number or property address. Verify the situs address, parcel status, use type, roll year, land value, improvement value and responsible district office.
2. Can I search Los Angeles County property by owner name online?
No. The public Assessor Portal does not provide an owner-name search. Search by address or AIN, then request specific owner information through an Assessor inquiry or in-person office service when permitted.
3. What is a Los Angeles County AIN or APN?
The AIN is the ten-digit parcel identifier used for assessment and property-tax purposes. It contains a four-digit map book number, three-digit page number and three-digit parcel number. AIN and APN commonly refer to the same identifier.
4. Does the Los Angeles County Assessor collect property taxes?
No. The Assessor establishes assessed values and exemptions. The Auditor-Controller applies tax rates and direct assessments, while the Treasurer and Tax Collector issues bills, accepts payments and maintains payment status.
5. What are the 2026 Los Angeles County assessment appeal dates?
The regular 2026 assessment appeal filing period runs from July 2 through November 30, 2026. Supplemental, adjusted and escape assessments generally have a 60-day filing period tied to the applicable notice or postmark date.
6. How much does a Los Angeles County assessment appeal cost?
Los Angeles County currently charges a $46 non-refundable filing fee for an assessment appeal application. A qualifying applicant may submit a fee-waiver request with the application when the fee would cause financial hardship.
7. What is a Los Angeles County supplemental property-tax bill?
A supplemental bill reflects the change in assessed value caused by a reassessable ownership transfer or new construction for the remaining portion of the fiscal year. It is separate from the annual secured bill and may not be paid through a mortgage impound account.
8. What is the Los Angeles County Homeowners’ Exemption?
A qualifying owner-occupied principal residence may receive a $7,000 reduction in taxable value after a one-time claim is filed with the Assessor. The exemption remains while the property and owner continue to qualify.
9. Can an Assessor parcel map be used as a legal survey?
No. Los Angeles County Assessor maps are prepared for assessment purposes and are not legal surveys. Obtain a recorded survey or hire a licensed surveyor when establishing property boundaries or resolving a boundary dispute.
10. Where can I obtain a Los Angeles County deed or lien record?
Request recorded real estate documents from the Los Angeles County Registrar-Recorder/County Clerk. Records are indexed by party name and recording year, and the office does not provide a public online property-record index searchable by street address.
Official Sources and Editorial Verification
Los Angeles County Assessor Portal
AIN and address search, parcel details, maps, values and assessment history.
LA County Property Tax Portal
Department responsibilities, tax bills, value questions and self-service tools.
Secured Property Tax Information
Annual bill dates, installments, delinquency and owner guidance.
Property Tax Payment Options
eCheck, card fees, in-person service and payment requirements.
Assessment Appeals Information
Filing periods, fees, hearing process and appeal resources.
Real Estate Records
Recorded deeds, copy requests, viewing rules and record availability.
What was reviewed: Assessor search fields, AIN format, owner-search restrictions, roll information, property maps, tax-payment fees, annual due dates, assessment-appeal filing periods, appeal fees, supplemental assessments, exemptions, Proposition 19, disaster assistance and Recorder access rules.
CountyPropertyAppraiser.org is an independent informational website. It is not affiliated with the Los Angeles County Assessor, Auditor-Controller, Treasurer and Tax Collector, Assessment Appeals Board, Registrar-Recorder/County Clerk, California State Board of Equalization or any county portal provider.
Parcel status, assessed values, exemptions, tax balances, fees, deadlines, office hours, elected officials, forms and online interfaces can change. Confirm time-sensitive information with the responsible official office before paying, filing, appealing, recording a document, buying property or taking legal action.
Last reviewed: August 6, 2026.
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