Treasurer-Tax Collector
Official tax bills, balances and payment options. Read the office’s current requirements before continuing.
Before you start · 10 requirements & conditions
- Deadlines · Shared California BOE calendar: regular secured-roll taxes; local bills and payment channels remain separate
- Secured-roll first installment is due November 1; the delinquency date is separate.
Source & saved evidence
California State Board of Equalization · California property tax calendar (opens in a new tab)
BOE calendar: property owners, secured-roll first-due
§ 2605 Rev. & Tax. Code November 1 Property owners First installment of real property taxes and all taxes on personal property on the secured roll are due and payable.
Agent source review: October 26, 2026 · Snapshot
b5e3be710f5a4327 - Deadlines · Shared California BOE calendar: regular secured-roll taxes; local bills and payment channels remain separate
- Secured-roll second installment is due February 1; the delinquency date is separate.
Source & saved evidence
California State Board of Equalization · California property tax calendar (opens in a new tab)
BOE calendar: property owners, secured-roll second-due
§ 2606 Rev. & Tax. Code February 1 Property owners Second installment real property taxes due and payable.
Agent source review: October 26, 2026 · Snapshot
b5e3be710f5a4327 - Deadlines · Shared California BOE calendar: regular secured-roll taxes; local bills and payment channels remain separate
- BOE’s regular first-installment delinquency date is December 10 at 5 p.m. or close of business, whichever is later. Read the holiday rule and your actual bill.
Source & saved evidence
California State Board of Equalization · California property tax calendar (opens in a new tab)
BOE calendar: property owners, secured-roll first-delinquent
§§ 2617 and 2704 Rev. & Tax. Code December 10 Property owners First installment of taxes on the secured roll, if unpaid, is delinquent at 5:00 p.m. or close of business day, whichever is later.
Agent source review: October 26, 2026 · Snapshot
b5e3be710f5a4327 - Deadlines · Shared California BOE calendar: regular secured-roll taxes; local bills and payment channels remain separate
- BOE’s regular second-installment delinquency date is April 10 at 5 p.m. or close of business, whichever is later. Read the holiday rule and your actual bill.
Source & saved evidence
California State Board of Equalization · California property tax calendar (opens in a new tab)
BOE calendar: property owners, secured-roll second-delinquent
§§ 2618 and 2705 Rev. & Tax. Code April 10 Property owners Second installment of taxes on the secured roll, if unpaid, is delinquent at 5:00 p.m., or close of business day, whichever is later.
Agent source review: October 26, 2026 · Snapshot
b5e3be710f5a4327 - Deadlines · Shared California BOE calendar: regular secured-roll taxes; local bills and payment channels remain separate
- BOE notes that a specified date falling on Saturday, Sunday or a legal holiday generally moves to the next business day. Check the county’s notice and payment-channel cutoff.
Source & saved evidence
California State Board of Equalization · California property tax calendar (opens in a new tab)
BOE calendar Notes: weekend/legal-holiday rule
In practically all cases, the action may be done before the specified date. If the specified date falls on Saturday, Sunday, or a legal holiday, the action may be done on the next business day. (Government Code §§ 6706, 6707)
Agent source review: October 26, 2026 · Snapshot
b5e3be710f5a4327 - Deadlines · Electronic payment cutoff
- Electronic payments are accepted until 11:59 p.m. Pacific on the delinquency date.
Source & saved evidence
Property-tax local instructions: Electronic payment cutoff; saved text paragraph 227
Electronic payments can be made 24/7 - Payments are accepted up until 11:59 p.m. Pacific Time on the delinquency date.
Agent source review: October 26, 2026 · Snapshot
03ba57267a9842f3 - Payments · Credit-card fees by channel
- The original county PDF lists 2.35% for counter, online and IVR credit cards, with a $1.95 minimum.
Source & saved evidence
Property-tax local instructions: Credit-card fees by channel; PDF page 1
1. Credit Card Payments (Visa, MasterCard, American Express, Discover) • Over-the-Counter: 2.35% service fee • Online: 2.35% service fee • IVR (Phone Payments): 2.35% service fee • Minimum Fee: $1.95 per transaction
Agent source review: October 26, 2026 · Snapshot
b7d0943ed8efe442 - Payments · In-person PIN debit fee
- The PDF lists $2.95 per in-person PIN debit transaction, subject to the contractor’s annual review.
Source & saved evidence
Property-tax local instructions: In-person PIN debit fee; PDF page 1
2. PIN Debit (In-Person Only) • $2.95 per transaction • Note: The contractor reserves the right to review and adjust this fee annually.
Agent source review: October 26, 2026 · Snapshot
b7d0943ed8efe442 - Payments · Online e-check cost
- Online e-check is free according to the county payment-methods PDF.
Source & saved evidence
Property-tax local instructions: Online e-check cost; PDF page 1
4. E-Check Payments (Online Only) • Free of charge
Agent source review: October 26, 2026 · Snapshot
b7d0943ed8efe442 - Deadlines · Supplemental bill separate due dates
- The supplemental bill is due when mailed and payable in two installments; use the dates shown for that supplemental bill.
Source & saved evidence
Property-tax local instructions: Supplemental bill separate due dates; saved text paragraph 228
The supplemental tax is due upon the mailing of the bill. It is payable in two installments.
Agent source review: October 26, 2026 · Snapshot
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Source & saved evidence
San Mateo County · San Mateo County — tax collector (opens in a new tab)
Service link: Click this link to view/pay property taxes.
Click this link to view/pay property taxes.
Agent source review: October 12, 2026 · Snapshot d4ed511fde3c0969
- Phone
- 866-220-0308
Contacts & sources · 3 fees published by this office · 3 forms