This page helps users handle a property tax need in San Bernardino County, California, including paying a bill, checking deadlines, reviewing payment history, and finding the right county tax contact.
The main public channel is the San Bernardino County Auditor-Controller/Treasurer/Tax Collector online tax services page, which connects users to property tax payments, payment history, partial payment information, and related tax bill help.
San Bernardino County property tax online services
Use the Auditor-Controller/Treasurer/Tax Collector property tax services page to start the main property tax payment task. The page highlights online payment access, instant confirmation, 24/7 access, payment history, and a bulk payment option for users paying multiple bills.
Pay or manage a San Bernardino County property tax bill.
Before using the online services, have the property tax bill details available. For payment arrangements, the county asks users to have the Assessor’s Parcel number or Tax Bill Number ready when contacting a tax specialist.
- Assessor’s Parcel number
- Tax Bill Number
- Payment method information, if making a payment
For users paying five or more bills, the online system may slow down. The county points users to the bulk payment feature, which supports up to 3,000 accounts in one upload and requires a quick login.
- Open the official property tax services page.
- Choose the property tax payment or payment history option that matches the task.
- Review any bill details, penalties, or payment amounts shown before submitting payment.
- Use the bulk payment feature if paying a large group of bills.
Payment safety alert: the county warns that mail theft and check fraud are rising and encourages avoiding mailed checks.
Property tax due dates and penalties
San Bernardino County secured tax bills follow two installment deadlines. Late payments are subject to penalties, and a weekend or holiday delinquent date moves to the next business day.
| Date | Property tax event | Late payment result |
|---|---|---|
| October | Treasurer-Tax Collector mails original secured property tax bills | Not applicable |
| November 1 | First installment is due | Not applicable |
| December 10 | First installment payment deadline | 10% penalty if not paid by 5:00 p.m. |
| February 1 | Second installment is due | Not applicable |
| April 10 | Second installment payment deadline | 10% penalty plus $10 cost if not paid by 5:00 p.m. |
| June 30 | Delinquent secured accounts transfer to the delinquent tax roll | Additional penalties of 1.5% per month, plus a $15 redemption fee |
The Tax Collector also lists unsecured tax bill timing. Unsecured bills are mailed in July, due August 1, and have an August 31 payment deadline. A 10% penalty applies if not paid timely, plus a $46.00 collection fee if not paid in full by the delinquent date.
For the full calendar, use the San Bernardino County property tax important dates page.
Postmarks and mailed payments
Property tax payments must be received or postmarked by the delinquency date to avoid penalties. Payments received after the delinquency date without a valid postmark are treated as late under state law.
Standard postage stamps are postmarked. Metered mail, pre-canceled stamps, Automated Postal Center stamps, and permit imprint mail are not postmarked by USPS. Users who want a dated mailing label may purchase a Postage Validated Imprint label at a USPS retail counter.
Review the county’s postmark guidance before mailing a payment close to a deadline.
Payment options and card fees
San Bernardino County lists several ways to pay a property tax bill: online, by phone, by mail, or in person. Payments by phone can be made through the Tax Collector at (909) 387-8308 using Visa, MasterCard, Discover, American Express, or a checking or savings account.
Mailed payments go to the Auditor-Controller/Treasurer/Tax Collector at 268 West Hospitality Lane, First Floor, San Bernardino, CA 92415. The county says to enclose the tax bill, or write the parcel number on the check if the bill is not available. Checks must be in U.S. dollars and drawn on a U.S. bank account.
The county states there is no charge for paying by checking or savings account. Card fees are set by the payment processor and shown before the transaction is completed.
| Payment or fee type | Amount |
|---|---|
| Debit or credit card payments effective September 15, 2025 | 2.30%, minimum fee $1.95 |
| Commercial or international credit cards effective September 15, 2025 | 3.95%, minimum fee $1.95 |
| In-office debit card transaction | $2.95 |
| Checking or savings account payment | No fee |
Partial payments and payment arrangements
The ATC Partial Payment Program helps San Bernardino County taxpayers manage secured property taxes in smaller amounts. The county describes the program as a way to reduce delinquency and help taxpayers stay current with property tax obligations.
Review the ATC Partial Payment Program for secured property tax payment flexibility.
For other payment arrangements, contact a tax specialist at the Tax Collector. Have the Assessor’s Parcel number or Tax Bill Number ready when asking whether a payment plan may be authorized.
New homeowner and supplemental tax bill information
New San Bernardino County homeowners may receive supplemental tax bills after a change in ownership. The county explains that supplemental bills are one-time bills created when ownership changes or new construction is completed.
Supplemental tax bills are separate from the annual bill, and both must be paid as stated on each bill. Lending agencies do not receive a copy of the supplemental tax bill, so the property owner should contact the lender to determine who will pay it.
The county says new homeowners normally receive supplemental tax bill or bills within 6 to 9 months of purchasing the property. The bill is prorated from the purchase date through July 1 of that year, and some purchase timing can result in two supplemental bills.
Read the supplemental tax bill explanation for details on reassessment, proration, bill timing, and delinquency rules.
Assessment questions and tax bill reductions
The Tax Collector collects property tax bills, but the Assessor handles assessed value questions, mailing address changes, and exemption information. The county directs users to the Assessor at (909) 387-8307 for assessed value concerns and mailing address changes.
Homeowners who own and occupy the property as their principal residence as of January 1 may qualify for a $7,000 assessed value exemption. The Assessor sends a Homeowner Exemption form within 2 to 3 months after purchase, and the county says to contact the Assessor if the form has not arrived after 4 months.
Users who believe the assessed value is too high should contact the Assessor first. If agreement cannot be reached, the county states that a Claim for Change in Assessment may be filed with the Clerk of The Board at (909) 387-3841.
Property Tax Postponement Program
The Property Tax Postponement Program allows eligible homeowners who are seniors, are blind, or have a disability to defer current-year property taxes on a principal residence. The county lists requirements that include 40 percent equity in the home and annual household income of $55,181 or less, among other criteria.
The application filing period runs from October 1 to February 10. To request an application by mail, call (800) 952-5661 or email postponement@sco.ca.gov. Users may also call the Tax Collector at (909) 387-8308.
Check the Property Tax Postponement Program information for the county’s program details and contact options.
Property tax contacts
Use these public contacts for San Bernardino County property tax payment, bill, assessment, and tax calculation questions.
- San Bernardino County Auditor-Controller/Treasurer/Tax Collector, 268 W Hospitality Lane, San Bernardino, CA 92415. Phone: (909) 387-8308.
- Tax Collector, 268 West Hospitality Lane, First Floor, San Bernardino, CA 92415-0360. Hours: 9:00 AM to 4:30 PM Monday - Friday.
- Assessor. Phone: (909) 387-8307.
- Property Tax Division, 268 W. Hospitality Lane, 4th Floor, San Bernardino, CA 92415. Phone: (909) 382-3090. Operating hours: Monday - Friday 9:00 AM - 4:30 PM PST, excluding holidays.
- Clerk of The Board. Phone: (909) 387-3841.
Common questions
Where do I pay San Bernardino County property taxes online?
Use the Auditor-Controller/Treasurer/Tax Collector property tax services page to start the payment task, view payment history, or use related tax services.
What if I did not receive my tax bill?
The county says users can print a duplicate tax bill from the website or call the Tax Collector at (909) 387-8308. Not receiving a bill does not remove penalties and costs if payment is late.
When are secured property tax installments due?
The first installment is due November 1 and delinquent after December 10. The second installment is due February 1 and delinquent after April 10.
Who handles mailing address changes for a tax bill?
Contact the Assessor at (909) 387-8307 for mailing address changes on a property tax bill.
Can the Tax Collector lower my property taxes?
No. For assessed value concerns, contact the Assessor first. If the issue is not resolved, the county directs users to the Clerk of The Board for a Claim for Change in Assessment.
Are supplemental tax bills paid by the mortgage company?
The county states that lending agencies do not receive a copy of supplemental tax bills. Property owners should contact their lender to determine who will pay the supplemental bill.
What happens when a secured tax payment is late?
A late first installment receives a 10% penalty. A late second installment receives a 10% penalty plus a $10 cost. Delinquent secured accounts transferred on June 30 receive additional monthly penalties and a redemption fee.