San Joaquin County tax-defaulted property
Every California county starts the same statutory clock on July 1, and for most property it runs five years to the county’s power to sell. We cover that clock step by step here. What differs is what each county publishes, what it ends up auctioning, and how it runs the sale.
The two lists San Joaquin County publishes
San Joaquin publishes two lists a year, at opposite ends of the five-year clock. Its Property Tax Default (Delinquent) List ran in The Record on August 30, September 6 and September 13, 2026, and names parcels that went into default on July 1, 2025, over their 2024-25 taxes, with what each owes to redeem as of September 2026. Those owners are about a year in, with most of the five years before the county can sell still ahead of them. The Notice of Impending Power to Sell runs in late May and early June: the 2026 notice named 291 parcels, in default since the 2017-18 to 2020-21 tax years, that came under the county’s power to sell on July 1, 2026. Lispend carries the default list.
What San Joaquin County actually auctions
Most of what San Joaquin puts up for sale never sells, because the owner pays first. The county’s published results for its March 11-12, 2026 internet auction cover 125 parcels: 104 were redeemed before the sale, 15 were removed, 2 drew no bids, and 4 sold, for $57,500, $69,077, $126,500 and $427,500. On that record, reaching the sale list is the point at which most San Joaquin owners find the money.
The housing behind the list
In the Census Bureau’s 2020-2024 American Community Survey, San Joaquin County had 260,151 homes, the median owner-occupied home was valued at $530,700, the median home was built in 1984, and 62 percent of its occupied homes were lived in by their owners. The other 38 percent were rented, so before you write to an owner, check whether the mailing address is the property or somewhere else: a landlord and an owner-occupant need different letters.
How San Joaquin County runs its tax sale
San Joaquin sells on Bid4Assets. Its Board of Supervisors authorized the March 11-12, 2026 internet auction by resolution on October 21, 2025. Bidders had to register by March 4 with a refundable $5,000 deposit and a $35 non-refundable processing fee. Winners had until March 16 to say how title should vest and until March 19 to pay in full, by certified check, money order or wire, or the deposit went to the county. A documentary transfer tax of $0.55 per $500 of the price and a $35 fee per parcel are added to the bid. Parcels left over could be re-offered online on May 27-28, 2026. As of September 2026 the county lists the date, time and place of its next sale as to be determined.
What the owner can still do
An owner can redeem in full until the close of business on the last business day before the sale (for the March 2026 auction, 5 p.m. on March 10), and if the parcel does not sell, that right comes back until the next sale. Within five years of default, the owner can instead open a five-year installment plan: at least 20 percent of the redemption amount up front plus the current year’s taxes, then 20 percent or more of it by each April 10, with interest of 1.5 percent a month on the unpaid balance. The current year’s taxes are never part of those payments and have to be paid on top. If the property does sell, the parties of interest, such as lienholders and the former owner, can claim any excess proceeds.
What to do differently here
Treat San Joaquin as an early list. These owners went into default in July 2025, the county cannot sell for years, and half of the parcels on the 2026 list owed less than $3,700 to redeem as of September 2026, so a pitch built on an auction date will not land. What does land is the cost of waiting: defaulted taxes here carry delinquent penalties, a state redemption fee and redemption penalties of 1.5 percent a month. And the county’s own results show how most of these files end, with the owner paying before the sale, so the owner worth reaching is the one who would rather sell than pay, and the time to reach them is now.
Sources
- San Joaquin County Treasurer-Tax Collector, Property Tax Default (Delinquent) List, August-September 2026
- San Joaquin County Treasurer-Tax Collector, Notice of Property Tax Delinquency, Impending Default and Impending Power to Sell, May 2026
- San Joaquin County Treasurer-Tax Collector, Notice of Public Internet Auction, March 11-12, 2026
- San Joaquin County Treasurer-Tax Collector, tax sale results, March 2026
- San Joaquin County Treasurer-Tax Collector, announcements
- San Joaquin County Treasurer-Tax Collector, public auction
- San Joaquin County Treasurer-Tax Collector, redemption
- San Joaquin County Treasurer-Tax Collector, redemption FAQs
- U.S. Census Bureau, ACS 2020-2024, B25077 median value
- U.S. Census Bureau, ACS 2020-2024, B25003 tenure
- U.S. Census Bureau, ACS 2020-2024, B25035 median year built
- U.S. Census Bureau, ACS 2020-2024, B25002 occupancy
Last verified 2026-09-19. County sale details change from year to year, so check the county’s own notice before you bid. General information, not legal advice.
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See San Joaquin County tax-defaulted property
Both lists, in the same place as the county’s other distressed property.
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