Prop 19 Filing Guide for San Diego County

To claim a Proposition 19 benefit on a San Diego County property, you file with the San Diego County Assessor/Recorder/County Clerk, known locally as the ARCC. Use BOE-19-B to carry your tax base to a replacement home if you are 55 or older. Use BOE-19-P or BOE-19-G plus BOE-266 to claim an inherited family home. San Diego County is unusual in one helpful way: it runs a dedicated Proposition 19 email address, Prop19@sdcounty.ca.gov, and a separate unit that handles intergenerational claims.

That specialization matters. In most counties your inheritance claim lands in a general queue. In San Diego it goes to a team that does this work all day.

Which Form Do You File?

Proposition 19 provides two separate benefits, and they run on different forms.

You are moving to a new home. File BOE-19-B if you are 55 or older, BOE-19-D with BOE-19-DC if you are severely and permanently disabled, or BOE-19-V if a wildfire or Governor-declared disaster destroyed your home.

You inherited a home. File BOE-19-P for a parent-to-child transfer or BOE-19-G for a grandparent-to-grandchild transfer. File BOE-266 as well, because the exclusion depends on the heir claiming the homeowners’ exemption.

The county posts all of them on the ARCC assessor forms page. San Diego also maintains a standalone parent-child exclusion page that walks through that claim specifically.

Where to File in San Diego County

File with the assessor of the county where the property sits. An inherited San Diego home is a San Diego filing. A base year value transfer goes to the county of your replacement home, so a move from San Diego to Riverside is a Riverside filing, and a move from Los Angeles to San Diego comes here.

Intergenerational claims go to the Intergenerational Exclusion Unit at 1600 Pacific Highway, Suite 103, in downtown San Diego. If you prefer to walk a document in, the county runs branch offices at these locations, and all four keep the same 8:00 a.m. to 5:00 p.m. schedule.

• Santee: 10144 Mission Gorge Road.
• Chula Vista: 590 Third Avenue.
• San Marcos: 141 East Carmel Street.
• Kearny Mesa: 9225 Clairemont Mesa Boulevard. This location handles assessor services only.

The Deadlines That Decide the Outcome

One year, for an inherited home. Occupy the home as your principal residence and file BOE-266 within one year of the date of death. The county states this plainly on its parent-child page, and it is the deadline that most often ends the benefit.

Three years, for the exclusion claim. File BOE-19-P or BOE-19-G within three years of the transfer, or before the home is sold outside the family, whichever comes first.

Six months, if a supplemental notice arrives. San Diego confirms a claim is still timely if you file it within six months of the supplemental notice mailing date.

Two years, for a move. Buy and sell within two years of each other, in either order, and file BOE-19-B within three years of buying the replacement home.

What San Diego County Requires in the Envelope

San Diego publishes two document requirements that trip up unprepared filers.

Trust documents. If the property was held in trust, the county wants the trust documents with the claim. Assemble them before you file rather than after the assessor asks.

Social Security numbers. State law requires them on these claims, and the county says so directly. A form returned for a missing number burns weeks you may not have.

Finding Your Factored Base Year Value

Your factored base year value is what the county taxes today. It is the original purchase price plus annual inflation adjustments capped at two percent, plus the assessed value of improvements. It is not what your parents paid in 1985.

Your annual tax bill shows it as the assessed value or net taxable value. The county also provides a property lookup through ParcelQuest. Pay the tax bill itself through the San Diego County Treasurer-Tax Collector.

A Worked Example

A parent dies owning a home in La Mesa. The factored base year value is $240,000. The market value on the date of death is $1,400,000. A daughter inherits and moves in within six months.

The value limit is $240,000 plus $1,044,586, which is $1,284,586. The home exceeds that by $115,414, so the county adds only that excess to the base.

• New taxable value: $240,000 plus $115,414, or $355,414. About $3,554 a year at one percent.
• Without the exclusion: $1,400,000, or about $14,000 a year.

The exclusion is worth roughly $10,450 a year to this family. Check the arithmetic with the shortcut: $1,400,000 minus $1,044,586 equals $355,414. The two methods always agree.

The whole result depends on the daughter living in the home and the paperwork reaching the Intergenerational Exclusion Unit. Rent the home out instead, and the county reassesses it to $1,400,000 with no cap at all.

Appealing a San Diego County Value

If the assessor’s value is higher than a supportable appraisal, you can appeal. San Diego’s Assessment Appeals Board takes regular applications between July 2 and November 30, and takes an appeal of a supplemental bill within 60 days of the bill’s mailing date.

Appeals go to the Clerk of the Board at 1600 Pacific Highway, Room 402, San Diego, CA 92101, reachable at (619) 531-5777. Filing an appeal does not replace filing your Proposition 19 claim. Do both.

Mistakes That Cost San Diego Families the Exclusion

Waiting for probate to close. The twelve-month occupancy clock starts at death.

Sending a trust claim without the trust. The county asks for the documents, so include them.

Filing a base transfer in the county you left. It belongs to the county of the replacement home.

Assuming a phone call is enough. San Diego gives you an email address for Proposition 19 questions, which is useful, but a question is not a claim.

Counting on a rental to qualify. Only the family home the heir occupies, and the family farm, receive the exclusion.

Summary

• File Proposition 19 claims on San Diego County property with the ARCC, and route Proposition 19 questions to Prop19@sdcounty.ca.gov.
• Use BOE-19-B, BOE-19-D, or BOE-19-V to move a tax base, and BOE-19-P or BOE-19-G plus BOE-266 for an inherited home.
• Intergenerational claims go to a dedicated unit at 1600 Pacific Highway, Suite 103.
• Include trust documents and the Social Security numbers state law requires.
• Move in and file the homeowners’ exemption within one year of the date of death, and file the exclusion claim within three years.
• A claim filed within six months of a supplemental notice still counts as timely.
• Assessment appeals run July 2 to November 30, or 60 days from a supplemental bill.

Get Your San Diego County Filing Right

Talk to Bart. If you are inheriting a San Diego County home or planning a move that carries your tax base with you, Bart Hubbard can tell you what to file and what to include. Reach out at Prop19Hero.com.

Read the book. Prop 19 Hero covers the filing process, the deadlines, and the traps that void the exclusion before the arithmetic ever matters. Find it on Amazon.