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Free checklist · 2026 California tax-default auctions
The work to do before the auction opens — APN, title, environmental, occupancy, comps. Print this page or save as PDF (⌘P / Ctrl+P) to take to your due-diligence sessions. Updated 2026-04-29.
Every California tax sale is AS IS, with no warranty (R&T § 3692.3). The County does not inspect the property, does not guarantee the situs address, does not guarantee buildability, and will not refund a winning bid because you misjudged what you bought. The TTC's only job is to satisfy the unpaid taxes — yours is to figure out whether the parcel is worth more than the minimum bid.
This chapter is the work you do before the auction opens. Skip a step and the surviving liens, easements, or buildability problems become your problem the day you wire payment.
Budget 3–6 hours per parcel for thorough diligence. That's why filtering aggressively (Section 5: Red Flags) matters — don't waste hours on parcels that should have been ruled out by APN alone.
Start with the auction listing's APN (Assessor's Parcel Number). Don't trust the situs address printed on the listing — a meaningful percentage are wrong.
Verify APN against assessor. Plug the APN into the county Assessor's parcel viewer (every county directory page lists the URL). Confirm the parcel exists, the listed acreage matches, and the assessed value is in the same order of magnitude as the minimum bid.
Pull the assessor parcel map (the "parcel sheet"). Confirm the parcel's shape and dimensions. If the lot is 8 feet wide, you're looking at a sliver — see Section 5.
Cross-check the situs address. Type the situs into Google Maps or the assessor parcel viewer's address search. If the address doesn't resolve, doesn't match the parcel boundary, or returns a different APN, treat the listing's address as untrustworthy and rely only on the APN going forward.
Verify zoning. County GIS / planning portals show zoning overlays. If the parcel is zoned "Agriculture-Restricted," "Open Space," "Williamson Act preserve," "Coastal Zone," or "Specific Plan," your buildability is constrained. Note the zoning code and look it up in the county zoning ordinance.
Check for HOA / CC&Rs. A surprising number of tax-default parcels are within HOA-governed subdivisions. The HOA dues and special assessments survive the tax deed. If the HOA has been levying special assessments for years on a defaulted parcel, you may inherit a five-figure HOA balance.
This is the step that distinguishes professional bidders from people who lose money. The tax deed wipes most private liens (R&T § 3712) but preserves a list of survivors that will attach to your title. Section 1 covers what survives — your job here is to identify which of those exist on this specific parcel.
Search the County Recorder's grantor/grantee index for the APN and current owner. Pull every recorded document for the parcel from the date of the most recent owner-acquisition deed forward. You're looking for:
Mortgages / deeds of trust (mostly extinguished, but verify they're genuinely consensual liens, not financing of special assessments)
Judgment liens (extinguished — but check for recent IRS or state tax liens)
IRS federal tax liens — survive if recorded ≥30 days before sale, with a 120-day federal redemption right under 26 U.S.C. § 7425(d). This is a big one. Always check.
Mello-Roos / CFD assessment liens — survive
PACE / HERO loan liens — survive
1915 Bond Act assessments — survive
Mechanic's liens, weed/brush abatement, demolition, code-enforcement liens — most survive
Easements (recorded utility, road access, view easements) — survive
Search the State Tax Lien Registry (California FTB) for the current owner's name. State tax liens on the owner (not the parcel) generally don't transfer with the property, but FTB-recorded liens against the property do.
Check the County Code Enforcement / Building Department records for outstanding violations or demolition orders. These are recorded as nuisance abatement liens in some counties and as separate orders in others. Either way, you may inherit them.
Pull the Preliminary Title Report (PTR) if you can. Most title companies will run a PTR for $150–$500 on a tax-default parcel even pre-bid. Worth it on parcels you're seriously considering. The PTR is what surfaces the encumbrances most county searches miss.
Rule of thumb: if you find ONE preserved lien that exceeds 25% of the minimum bid, walk away unless the parcel is unusually valuable.
You cannot enter the property — California tax sales are AS IS, sight-unseen for the interior. But you can do meaningful diligence from outside.
Drive by the property (or pay someone $50 to). You're looking for: actually existing structure (or lack of one), occupancy signals, obvious damage, illegal dumping, dangerous conditions, posted notices.
Aerial / satellite review. Google Earth historical imagery shows when structures appeared/disappeared. If a "house" was demolished 8 years ago and you didn't catch it, you'd be paying for vacant land at improved-property prices.
Flood zone check. FEMA Flood Map Service Center → enter address or APN → identify flood zone designation. Zone A, AE, V, VE require flood insurance and limit financing options. Some parcels are in floodways that prohibit construction entirely.
Wildfire risk zone. Cal Fire's "FHSZ" (Fire Hazard Severity Zone) maps. High-risk zones increase insurance costs significantly and may have limited insurer options post-2024–2025 fire seasons.
Environmental contamination check. State Water Resources Control Board's GeoTracker portal — search by address or APN for known contamination sites, leaking underground tanks, etc. Critical for any parcel with historical commercial/industrial use.
Mineral, water, and oil/gas rights. California parcels frequently have severed rights. The deed only conveys what was last held by the defaulting owner — if mineral rights were severed in 1962, you don't get them.
If you win, you're inheriting whoever lives there.
Determine occupancy. Drive-by signals: cars, mail accumulation, lights, lawn maintenance. Public records: utility hookups (some counties expose this in GIS), voter registration databases. Don't trust the listing's occupancy field — it's frequently outdated.
If occupied, plan for an unlawful-detainer (eviction) action. California UD timeline post-tax-deed is typically 60–120 days for cooperative occupants, 4–8 months for contested cases. Budget legal fees ($1,500–$5,000+) in your max-bid math.
Sniff for squatters / professional defendants. Some properties cycle through squatters who know how to stretch UD timelines. County court records (small claims, prior UD filings) reveal patterns.
The whole point of bidding is paying less than the parcel is worth. Your ARV (after-repair value) drives your max bid.
Pull at least 3 comps within the last 6 months within ½ mile, similar lot size, similar zoning. Use Redfin, Zillow, or the county recorder's recent sales lookup.
For vacant land specifically: look at sold land comps, not listed. Vacant land listings often sit for 18+ months at aspirational prices that never close.
Adjust comps down for the tax-deed-specific friction:
12-month rescission cloud reduces sale price by ~15–25% to motivated cash buyers
No title insurance during cloud period eliminates retail buyers entirely
Quiet title action cost: $2,500–$8,000 depending on complexity
Wholesale-buyer discount if you don't want to hold
Your max bid = ARV × discount factor − all-in costs (taxes/penalties/fees in the minimum bid + transfer tax + recording + holding cost during 12-month cloud + quiet title + eviction reserve + your target margin).
If your math says max-bid-able $14,000 and the minimum bid is $11,500, you have $2,500 of bidding room. If the room is less than the cost of one unanticipated lien or repair, walk away.
Right before placing a bid, run this checklist one more time:
APN verified, situs sanity-checked
Title pulled, no surviving lien > 25% of min bid
Drive-by or aerial review done
Comps pulled, max bid calculated
Holding cost (12-month rescission carry) priced in
Quiet title cost priced in
Occupancy known, eviction reserve set if needed
Redemption status checked TODAY (parcel could have redeemed last night)
If you cannot tick every box, do not bid on this parcel in this auction. There will be others.
The full 2026 California Tax-Default Auction Starter Kit covers all 10 counties (platforms, deposits, schedules, surviving liens), red-flag rules, ROI / max-bid math, and templates — $27, instant download, 14-day refund.
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