Check and pay your San Diego property tax at the County Treasurer-Tax Collector website, sdttc.com. The first installment is due November 1 and goes delinquent after December 10. The second is due February 1 and goes delinquent after April 10. E-check payments are free.
TL;DR:
- Credit card payments incur a nonrefundable 2.19% fee, while mailed checks count only when the county receives them, not when banks send them.
- A late installment adds a 10% penalty; the second also carries a $10 charge, while defaulted taxes add interest and a $33 redemption fee.
- A sale or new construction can reset assessed value toward market value and trigger a separate supplemental bill, often sent after closing.
- Bills vary by Tax Rate Area because local bonds and parcel assessments differ, so check the county lookup instead of relying on the 1% baseline.
- At closing, confirm with title and escrow who owes each installment, check payment status for prior years, and keep escrow records for later questions.
Table of Contents
- Where to find and pay your San Diego property tax bill
- How property taxes are calculated in San Diego
- Supplemental bills, reassessment and Prop 19 basics
- A worked example: estimating a $500,000 home’s annual tax
- How to look up parcel details and assessed values
- Which resource fits your question?
- Common tax timing pitfalls at closing
- How we help with tax-aware buying and selling
- FAQ
- Sources
Where to find and pay your San Diego property tax bill
Search your bill on sdttc.com using your parcel number or address, then view or print it. If nothing has arrived by November 1, print a copy from the county site or call the county. In California, getting the bill is the owner’s responsibility, even when the mail fails you. Duplicate bills cost $1.
Your payment options:
- E-check on sdttc.com: free of charge and credited the same day.
- Credit card, online or by phone: a 2.19% non-refundable convenience fee applies. Debit, gift and prepaid cards are not accepted.
- Mail, dropbox or in person: use the county’s branch offices; addresses and phone numbers are on the county’s payment reminder pages.
Mail carries risk. The county credits a payment when it physically receives it, so a bank bill-pay check that gets delayed can land you in penalty territory.
Late payments add a 10% penalty to each installment, plus a $10 cost on the second installment. Unpaid taxes then move to the default roll with added interest and a $33 redemption fee, per the county’s Tax Collection page.
How property taxes are calculated in San Diego
Additionally, ad valorem taxes include voter-approved bonds, which is why many bills land above 1%. Fixed charges, which are per-parcel special assessments, add to the total and make neighboring homes differ.
What moves your number:
- Annual increase: assessed value rises by an inflation factor, capped at roughly 2% per year.
- Reassessment triggers: a change of ownership or new construction resets the value toward current market value.
- Tax rate areas: each parcel sits in one, and local bonds and assessments vary by area. The county’s Useful Information for Taxpayers report lists rates by Tax Rate Area, and its Fixed Charge Special Assessments Index shows what can appear on a bill.
That is why the same price tag can produce different annual bills in different neighborhoods. A buyer who assumes the seller’s tax history will carry over is often surprised, because the purchase price usually becomes the new assessed value.
Supplemental bills, reassessment and Prop 19 basics
When a home sells or new construction finishes, the assessor sets a new value, and a supplemental bill covers the difference for the rest of the fiscal year. It arrives separately from the annual secured bill, often after closing. The county Treasurer-Tax Collector handles supplemental and escape bills alongside secured and unsecured ones.
Intergenerational transfers follow Proposition 19 rules for applicable transfers. The exclusion is capped at the property’s taxable value plus an adjusted amount, and that figure changes over time. The State Board of Equalization’s Prop 19 fact sheet covers base year value transfers for claimants 55 or older or disabled. For tactical filing advice, this Prop 19 timing guide from a San Diego agent is a useful companion.
- Contact the County Assessor promptly after a transfer.
- File the required BOE claim forms according to the applicable rules.
Pro Tip: Late filings usually bring prospective relief, not retroactive relief, so file as early as the rules allow.
A worked example: estimating a $500,000 home’s annual tax
Say a home sells, and its sale price becomes its new assessed value. These inputs are illustrative, not market data.
The allowance is illustrative and is only meant to show the mechanics. Your real figure depends on your parcel.
The 1% baseline gives you a floor, and bonds, fixed charges and special assessments push the real bill higher.
To refine it, find your parcel’s rates in the county’s Tax Rate Area Search. Then watch for Mello-Roos districts, special assessments and supplemental bills, which can all change the total. Our closing costs breakdown shows where taxes fit alongside other expenses at escrow.
How to look up parcel details and assessed values
Start with the county, then go deeper if you need mapping.
- Bill search: on sdttc.com, search by parcel number or address to view, print or pay your bill.
- Tax rate lookup: the Property Tax Services page links to the Tax Rate Area search and bill viewing.
- Assessment questions: the county’s property tax billing information page covers assessments.
- Deeper research: ParcelQuest offers statewide parcel data, including owner searches, APN maps and zoning, through subscription plans.
Keep your APN handy, print a $1 duplicate bill when you need a clean copy, and save parcel and escrow paperwork. The Secured Property Tax FAQs explain secured versus unsecured bills and mailing cycles.
Which resource fits your question?
- Use the county for official payment, penalties and default questions.
- Use ParcelQuest when you need maps, APN searches or owner history.
- Work with us when a purchase or sale makes tax timing and prorations part of the deal.
Common tax timing pitfalls at closing
Escrow typically prorates taxes between buyer and seller, so confirm with title and escrow who owes which installment. The usual surprises: unpaid prior-year taxes surfacing in a title search, and supplemental bills arriving after you hold the keys. Verify payment status early, and keep the county bill or escrow paperwork in one folder. We have seen a clean-looking file turn into a scramble because nobody checked the second installment.
— Chelsea Almario
How we help with tax-aware buying and selling
If you are buying or selling in San Diego County, we can walk through your parcel’s tax timing before it becomes an escrow problem.
- A free consultation to review parcel tax timing and prorations
- Home valuation and relocation planning built around tax deadlines
- Help to request either one in a single conversation
Book your free consultation or request a home valuation to plan your closing around the county calendar.
FAQ
How much are property taxes in San Diego County?
The county’s Useful Information for Taxpayers report lists the rates by area.
How do I look up property taxes in San Diego?
Search your parcel number or address on the County Treasurer-Tax Collector website to view, print or pay your bill. You can also call the county if no bill has arrived by November 1.
Do people over 65 pay property taxes in California?
Yes, homeowners generally keep paying property taxes. Age 55 or older may qualify for a base year value transfer under Proposition 19, subject to the filing rules.
How much is property tax on a $500,000 house in California?
Check your parcel’s rates in the county’s Tax Rate Area Search.