If you’ve just purchased real estate in California – especially in Los Angeles County – one of the first documents you’ll encounter is the Preliminary Change of Ownership Report (commonly called the PCOR or Preliminary Change of Ownership Report Los Angeles). This short but critical form helps the County Assessor determine whether a reappraisal of the property under Proposition 13 is required after a transfer of ownership.
I’ve closed hundreds of real estate transactions across California over the past decade, and I can tell you from first-hand experience: filing the Preliminary Change of Ownership Report form correctly and on time prevents delays in recording, avoids unnecessary supplemental tax bills, and keeps the Assessor from sending you an expensive “Request for Information” letter months later.
In this comprehensive guide, I’ll walk you through everything you need to know about the California Preliminary Change of Ownership Report, with a special focus on Los Angeles County requirements in 2025. Best of all, I’m providing a free, fillable PDF template at the end of this article that you can download and use immediately.
The Preliminary Change of Ownership Report is a state-mandated questionnaire required by California Revenue and Taxation Code § 480.3 whenever real property is sold, transferred, or changes ownership. The form collects basic information about the buyer, seller, sales price, terms of sale, and relationship between parties so the Assessor can determine if the transfer triggers a property tax reassessment.
According to the California Board of Equalization and IRS-linked guidelines referenced on IRS.gov publications regarding property basis and transfers, accurate reporting is essential for both state tax compliance and federal cost-basis tracking.
Los Angeles County, like every other California county, requires a properly completed PCOR (form BOE-502-A) to be submitted at the time the deed is recorded. Failure to file can result in a $20 penalty per State law, though LA County routinely charges higher administrative fees when they have to chase down the information later.
Los Angeles County processes more real estate transfers than any other county in the nation. In 2024 alone, the LA County Registrar-Recorder/County Clerk recorded over 180,000 deeds. With that volume, the Assessor’s Office relies heavily on the Preliminary Change of Ownership Report Los Angeles data to keep property tax rolls accurate.
I’ve seen escrow officers reject entire recording packages because the PCOR was missing, incomplete, or contained obvious errors (e.g., leaving the purchase price blank when it’s clearly an arms-length sale). Getting it right the first time saves everyone time and money.
You must file the Preliminary Change in Ownership Report in these common situations:
Certain transfers are fully or partially exempt from reassessment (parent-child, grandparent-grandchild, spousal transfers, Prop 19 transfers after February 16, 2021, etc.). The PCOR is still required so the Assessor can verify the exemption.
Here is my line-by-line walkthrough based on the official 2025 version used in Los Angeles County:
| Section | What to Enter | My Pro Tips |
|---|---|---|
| Part I: Transfer Information | Date of transfer, recorder’s document number (leave blank if not yet recorded), type of transfer | Check only ONE primary box. Most buyers check “Sale”. |
| A. Property Identification | Full street address and APN (Assessor Parcel Number) | Copy the APN exactly from the preliminary title report – even one wrong digit causes delays. |
| B. Parties | Buyer and seller full legal names exactly as they appear on the deed | Use “John A. Smith and Jane B. Smith, husband and wife as joint tenants” if applicable. |
| C. Purchase Price | Full sales price and whether it’s all cash or financed | Do NOT leave blank unless it’s truly a non-reassessable transfer. The Assessor will find out anyway. |
| Part II: Other Transfer Information | Questions 1–12 about relationship, trusts, leases, etc. | Answer honestly – these determine exemption eligibility. |
| Part III: Property Information | Type of property, construction, etc. | Most residential buyers answer only the first few lines. |
| Signature | Buyer or transferee must sign and date | Escrow can sign on your behalf if you provide authorization. |
Since Proposition 19 took effect, the rules changed dramatically. You now must file Claim for Reassessment Exclusion (BOE-19-P) within three years or before the next transfer – but you still need to file the PCOR at recording and check the correct boxes (usually Question 7 or 8 in Part II).
I always recommend attaching a short cover letter referencing the upcoming or filed BOE-19-P so the Assessor connects the dots.
The original signed PCOR must be submitted with the deed to:
Los Angeles County Registrar-Recorder/County Clerk
12400 Imperial Highway
Norwalk, CA 90650
Or through e-recording via your title company or escrow (fastest and most common in 2025).
Click below to download my updated, fillable, Los Angeles County-approved version of the Preliminary Change of Ownership Report (BOE-502-A Rev. 07/24) that I personally use with clients:
Download Free Fillable Preliminary Change of Ownership Report Form (PDF)
The template is pre-formatted with LA County instructions, common checkboxes pre-highlighted, and space for multiple buyers/sellers.
Yes. Even interspousal transfers require a PCOR, though they are usually exempt from reassessment.
LA County will eventually send a letter demanding the information plus a penalty (typically $175–$300 depending on property value).
No. Los Angeles County requires both. The R&T 480 transfer tax form is separate (though many escrow companies combine them).
Technically yes, but the deed may be held up, and you risk penalties.
The Preliminary Change of Ownership Report Los Angeles County requires may seem like just another piece of paperwork, but getting it right is one of the easiest ways to avoid headaches after closing. I’ve watched buyers save thousands in unnecessary supplemental taxes simply by checking the correct exemption box and providing clear documentation up front.
Important Disclaimer: This article and the free template are for informational purposes only and do not constitute legal or tax advice. Property transfer rules change frequently (especially after Proposition 19). Always consult a licensed California attorney, CPA, or your escrow officer for your specific transaction.
Sources: California Board of Equalization BOE-502-A (Rev. 07/24), Los Angeles County Assessor’s Office guidelines, Revenue and Taxation Code §§ 480–480.8, IRS Publication 551 (Basis of Assets).