Los Angeles (CA) County Property Appraiser 2026: Search, Tax & Records
If you searched for a Los Angeles County property appraiser, the official California office you need is called the Los Angeles County Assessor. California does not use the Florida-style “County Property Appraiser” title for this office.
The Assessor Portal lets you search real property by street address or the property’s 10-digit Assessor’s Identification Number, commonly called the AIN or APN. The record can show assessment values, land and building characteristics, tax-rate area, exemption status, parcel maps and assessment history.
Owner-name research works differently in Los Angeles County: the Assessor does not publish a public online owner-name search. Tax payments are handled by the Treasurer and Tax Collector, while recorded deeds, mortgages and liens are maintained by the Registrar-Recorder/County Clerk.
Assessor, Tax Collector, Recorder or Assessment Appeals Board?
Los Angeles County splits property-tax work across several departments. The fastest way to solve a property question is to start with the office that actually controls the record or action you need.
| Your Task | Correct Office | Official Starting Point |
|---|---|---|
| Search address, AIN/APN, value or building data | Los Angeles County Assessor | Assessor Portal |
| Find an owner’s name | Los Angeles County Assessor | Call, visit an Assessor office or submit a specific-property inquiry with the AIN/address. |
| View or pay property taxes | Treasurer and Tax Collector | Official Payment Options |
| Get a deed, mortgage or lien record | Registrar-Recorder/County Clerk | Real Estate Records |
| Request temporary decline-in-value review | County Assessor | 2026 RP-87 filing period: July 2–November 30. |
| File a formal assessment appeal | Assessment Appeals Board | 2026 Appeal Filing Portal |
How to Search Los Angeles County Property by Address or AIN/APN
The official Assessor Portal is designed around the property itself rather than a public owner directory. For most users, an address or AIN is the cleanest way to locate the correct parcel.
Open the Los Angeles County Assessor Portal
Start with the county system rather than a commercial property lookup site.
Open Official Assessor PortalSearch by property address or AIN
An AIN is the county’s main real-property identifier. It is also commonly called an APN, or Assessor Parcel Number.
Verify the situs address and parcel
Do not rely only on a similar street result. Confirm the AIN, situs address, property type and parcel status.
Open the parcel record and save the AIN
The AIN is useful for tax payments, assessment questions, appeals, duplicate bills and other county property-tax services.
After opening the Assessor Portal
- Use the address or AIN search field.
- Open the matching parcel rather than assuming the first result is correct.
- Check the situs address, property type and assessment values.
- Save the 10-digit AIN before moving to the Tax Collector or appeal portal.
- Use the responsible Assessor division shown on the parcel record if you need property-specific help.
What does an LA County AIN look like?
The county explains that the AIN is a 10-digit identifier made from a four-digit map book number, a three-digit page number and a three-digit parcel number. AIN and APN generally refer to the same parcel identifier in LA County property-tax records.
Why you cannot search LA County Assessor records online by owner name
The Assessor does not provide a public owner-name search through its website. The county cites privacy restrictions involving residential addresses of elected and appointed officials as a reason owner information is not published through the public online search.
Owner information for a specific parcel can instead be requested by contacting the Assessor with the property address or AIN. Recorded ownership documents can also be researched through the Registrar-Recorder/County Clerk.
What to Check Inside an LA County Assessor Record
Assessment Values
Look for land value, improvement value and total assessed value. The portal can also show assessment history and base-year information.
Property Characteristics
Depending on the parcel, records may show use type, units, building square footage, year built, effective year, lot information and design characteristics.
Map & Tax Context
The record can identify the Tax Rate Area, parcel map, map index, exemption status and responsible Assessor district.
| Record Field | What It Means | Why It Matters |
|---|---|---|
| AIN / APN | Unique parcel identifier used across county property-tax systems. | Needed for tax lookup, payments and many appeal actions. |
| Roll value | Assessment enrolled for a particular tax year. | This is different from a private appraisal or listing price. |
| Base year | Prop 13 starting point associated with a change in ownership or other reassessable event. | Helps explain why two similar homes can have very different assessed values. |
| Tax Rate Area | Geographic code used to identify applicable taxing jurisdictions. | Debt rates and direct assessments can differ across the county. |
| Year Built / Effective Year | Original construction year and an adjusted year reflecting major changes or rehabilitation. | The two fields are not interchangeable when comparing properties. |
| Exemption | Shows whether an enrolled exemption such as Homeowners’ is associated with the parcel. | Exemptions reduce taxable assessed value when applicable. |
Los Angeles County’s 2026 Assessment Roll Exceeds $2.27 Trillion
The 2026 Assessment Roll reflects taxable property values as of January 1, 2026. County-released figures show total assessed value reached approximately $2.272 trillion, an increase of about 4.42% from the prior roll.
The Assessor also reported approximately 891,000 Homeowners’ Exemptions totaling more than $6.3 billion in exempt assessed value. Countywide property-tax exemptions were estimated to produce about $948 million in tax savings.
How Proposition 13 affects the assessment
For most real property that has not experienced a reassessable ownership change or new construction, Proposition 13 generally limits annual assessed-value inflation growth to the lower of the inflation factor or 2%.
That does not mean the entire property tax bill is capped at 2%. Voter-approved debt rates and direct assessments can also appear on the bill.
Simple general-levy example
If a property’s taxable assessed value were $800,000, the basic 1% General County Tax levy would be approximately $8,000 before voter-approved indebtedness and direct assessments.
LA County Homeowners’ Exemption: $7,000 Assessed-Value Reduction
The California Homeowners’ Exemption can reduce the taxable assessed value of an owner-occupied principal residence by $7,000. At the basic 1% levy, that is roughly $70 in annual property-tax savings before considering other components of the bill.
- You must own the home.
- It must be your principal place of residence.
- Qualification is tied to occupancy as of January 1.
- New owners are generally mailed a Homeowners’ Exemption claim form by the Assessor.
- The claim is generally filed once and continues while eligibility remains unchanged.
After opening the exemption page
- Confirm the home qualifies as your principal residence.
- Review the current Homeowners’ Exemption claim instructions.
- Use the Assessor’s filing method rather than a private exemption-filing service.
- After processing, search your parcel and check whether “Homeowners” appears under exemption status.
- Contact the Assessor if the claim was filed but the exemption does not appear when expected.
Why a New LA County Owner May Receive a Supplemental Tax Bill
A purchase, qualifying change in ownership or completed new construction can create a supplemental assessment. The resulting supplemental tax bill is separate from the regular Annual Secured Property Tax Bill.
Buying a Property
The Assessor generally establishes a new base-year value following a reassessable ownership change. The seller’s assessed value should not be treated as the buyer’s future assessed value.
Completing New Construction
Additions and other assessable new construction can create a new value for the added improvement and generate a supplemental assessment.
County guidance explains that an ownership change or construction completion occurring after January 1 but before May 31 can result in two supplemental assessments because the event affects portions of two fiscal years.
What a new owner should check
- Find the AIN in the Assessor Portal.
- Confirm your mailing address is correct.
- Check whether the Homeowners’ Exemption applies to your principal residence.
- Watch separately for Annual Secured and Supplemental tax bills.
- Do not use the seller’s old bill as your only estimate of future taxes.
LA County Property Tax Due Dates, Online Payment Fees & Penalties
The Treasurer and Tax Collector mails Annual Secured Property Tax Bills each year in October and no later than November 1. The annual bill is divided into two installments.
| Installment | Due Date | Delinquent After | Late Charge |
|---|---|---|---|
| First | November 1 | December 10 | 10% penalty |
| Second | February 1 | April 10 | 10% penalty plus $10 cost |
Online payment costs
Electronic Check
The Treasurer and Tax Collector currently charges no county payment fee for an eCheck payment.
Credit / Debit Card
The current third-party processing charge is 2.22% of the transaction amount, with a $1.49 minimum.
Online payments can be submitted through the delinquency date until 11:59 p.m. Pacific Time. You will need the property’s AIN and applicable tax-bill information.
Open Official LA County Payment OptionsBefore paying online
- Confirm the parcel’s AIN in the Assessor Portal or on the tax bill.
- Open the Treasurer and Tax Collector payment system.
- Verify the property and tax year before paying.
- Choose eCheck or card after reviewing any service fee.
- Save the confirmation number and later verify payment history.
Mailing a secured property-tax payment
Los Angeles County Tax Collector
P.O. Box 54018
Los Angeles, CA 90054-0018
Decline-in-Value Review vs. Formal Assessment Appeal in 2026
Los Angeles County offers two different routes when a taxpayer believes an assessed value is too high. They are not the same filing.
| Process | Where You File | 2026 Timing | Purpose |
|---|---|---|---|
| Decline-in-Value Review | Los Angeles County Assessor | July 2–November 30, 2026 | Request temporary Prop 8 reduction when January 1 market value is below assessed value. |
| Regular Assessment Appeal | Assessment Appeals Board | July 2–November 30, 2026 | Formal independent challenge to the assessment. |
| Supplemental / Adjusted / Escape Appeal | Assessment Appeals Board | Generally within 60 days of the applicable notice or bill mailing/postmark date | Challenge certain non-regular-roll assessments. |
| Misfortune & Calamity Appeal | Assessment Appeals Board | Within six months after mailing of the proposed reassessment notice | Challenge a proposed disaster-related reassessment decision. |
2026 appeal fee
Los Angeles County charges a $46 non-refundable filing fee for an Assessment Appeal Application. A fee-waiver request is available when payment would cause undue financial hardship.
Written Findings of Fact are optional and involve a separate minimum fee currently listed at $492 per parcel and issue.
Open Official Assessment Appeals FilingAfter opening the appeal portal
- Select the type of property-tax bill involved.
- Use the owner/taxpayer information exactly as shown on the bill.
- Enter the Assessor’s ID Number and the PIN required by the portal.
- State your opinion of value and reason for appeal.
- Submit the application and required fee or fee-waiver request before the deadline.
- Save the filing confirmation and monitor the case-status system.
Decline-in-Value Review for 2026
If the property’s fair market value as of January 1, 2026 was below its factored Prop 13 assessed value, the owner can request a temporary Proposition 8 reduction through the Assessor using the 2026 Decline-in-Value Review process.
LA County Recorded Property Records Are Not a Normal Online Address Search
This is one of the most important local differences to understand. The Registrar-Recorder/County Clerk does not provide public internet access to its real estate record indexes.
Recorded real estate records are indexed by grantor name, grantee name and year of recording—not by property address. Records dating back to 1850 are available after recording.
Use the Assessor For
- Address and AIN lookup
- Assessment values
- Parcel characteristics
- Exemption status
- Assessor parcel map
Use the Recorder For
- Deeds
- Deeds of trust
- Recorded liens
- Recorded real estate documents
- Certified copies when required
After opening the Recorder page
- Determine whether you need to view a record or order a copy.
- Have the grantor/grantee name and approximate recording year when possible.
- Choose the current online, mail, fax or in-person request method.
- Review document-copy fees before ordering.
- For in-person index research, follow the appointment instructions for the Norwalk headquarters.
Registrar-Recorder/County Clerk
12400 Imperial Highway
Norwalk, CA 90650
Real Estate Records: 800-201-8999, option 3
Common LA County Property Search Problems and the Best Next Step
| Problem | Why It Happens | What to Do |
|---|---|---|
| Address returns no parcel | Multi-unit, commercial, corner or newly created parcels may use a different situs format. | Try the AIN from the deed/title report or contact the Assessor Help Desk. |
| You want to search by owner name | Owner names are not published through the public Assessor website. | Request specific-property owner information from the Assessor using the address or AIN. |
| Building size or property data appears wrong | Assessor records can contain outdated or incorrect characteristics. | Contact the responsible Assessor district and ask about a Property Data Change Request. |
| Recent deed is not reflected | Recorded ownership changes can take time to move through county processing. | Confirm recording with the Registrar-Recorder, then contact the Assessor if the ownership record remains outdated. |
| You disagree with the tax amount | The issue may be assessed value, tax rate, direct assessment or payment status. | Assessor for value; Auditor-Controller for tax computation; Tax Collector for bill/payment. |
| Parcel boundary looks wrong | Assessor mapping is for assessment purposes and is not survey-grade legal evidence. | Use recorded documents and a licensed land surveyor for a legal boundary determination. |
Los Angeles County Assessor, Tax Collector, Recorder & Appeal Contacts
| Office | Best For | Contact |
|---|---|---|
| Los Angeles County Assessor | AIN, parcel data, assessed value, exemptions, ownership processing | 213-974-3211 888-807-2111 |
| Treasurer and Tax Collector | Bills, payments, delinquent taxes and payment history | 213-974-2111 888-807-2111 |
| Registrar-Recorder/County Clerk | Recorded deeds, mortgages, liens and real estate copies | 800-201-8999 |
| Assessment Appeals Board | Formal assessment appeals | 213-974-1471 |
Los Angeles County Assessor Main Office
Kenneth Hahn Hall of Administration
500 W. Temple Street, Room 225
Los Angeles, CA 90012
Monday–Friday, 8:00 AM–5:00 PM
Los Angeles County Property Appraiser FAQs
1. Is there an official Los Angeles County Property Appraiser office?
California calls the office the Los Angeles County Assessor. The Assessor performs the government property-assessment functions that many other states describe as a property appraiser or appraisal district.
2. Can I search Los Angeles County property by owner name online?
No public owner-name search is provided through the official Assessor website. Search online by address or AIN. For owner information on a specific property, contact the Assessor with the address or AIN or research recorded documents through the Registrar-Recorder/County Clerk.
3. Is an AIN the same as an APN in Los Angeles County?
Yes. AIN means Assessor’s Identification Number and APN means Assessor Parcel Number. LA County commonly uses AIN for its 10-digit parcel identifier, which is organized as map book, page and parcel numbers.
4. Why can a parcel show 2026 Roll Preparation and an earlier current roll?
The Assessor Portal can display values being prepared for the next roll alongside the currently enrolled assessment history. Check the year and roll label before treating a displayed value as the value used on a particular tax bill.
5. Does Proposition 13 mean my LA County tax bill can rise only 2% per year?
No. The 2% rule generally limits annual inflation growth of the Prop 13 assessed value when no reassessable event occurs. Voter-approved debt, direct assessments, new construction, ownership changes or recovery from a temporary Prop 8 reduction can affect the final bill differently.
6. How much is the Los Angeles County Homeowners’ Exemption?
The Homeowners’ Exemption reduces the taxable assessed value of a qualifying principal residence by $7,000. At the basic 1% tax levy, that equates to roughly $70 in annual savings.
7. Why might a buyer receive a supplemental property tax bill after closing?
A qualifying change in ownership usually creates a new base-year assessment. The difference between the prior assessed value and the new value can generate a supplemental assessment and tax bill in addition to the regular annual bill.
8. What is the 2026 LA County assessment appeal deadline?
The filing period for 2026 regular assessments runs from July 2 through November 30, 2026. Supplemental, adjusted, escape and calamity-related assessments use different filing periods tied to their notices.
9. Where do I search an LA County deed or lien?
Use the Los Angeles County Registrar-Recorder/County Clerk. Its real estate records are indexed by grantor or grantee name and recording year. The department does not provide its real estate index as a public online search database.
10. When are Los Angeles County secured property taxes due?
The first installment is due November 1 and becomes delinquent after December 10. The second installment is due February 1 and becomes delinquent after April 10. Supplemental bills have their own due dates printed on the bill.
Primary Los Angeles County Sources Used for This 2026 Guide
- Los Angeles County Assessor
- Official Assessor Portal
- Los Angeles County Property Tax Portal
- Treasurer and Tax Collector Payment Options
- Los Angeles County Assessment Appeals Board
- Assessment Appeals Online Filing
- Registrar-Recorder Real Estate Records
- Los Angeles County Auditor-Controller Property Tax FAQs
Editorial review: September 2026. Assessment values, processing fees, office procedures and government systems can change. Use the official source controlling your transaction before submitting money, an exemption claim or an appeal.