Marin County property tax

First secured installment

Due

Officially published

6 days left Until this due date

Verified — Last verified . View source

Last day to pay without a penalty: .

Read the county’s exact wording

Officially published. Check the county’s payment time and method. Updated daily.

Notice: First installment of Secured Property Tax is due November 1, 2026, and becomes delinquent after December 10.

Not tax or legal advice; confirm with your county. Dates are shown as published by the source.

Installment timeline

2026–2027

Due dates and filing windows, in one view.

Sources. Checked .

Today:

  1. First secured installment

    November 1, 2026

    Officially published

  2. Second secured installment

    February 1, 2027

    Set by law

  3. Appeal window

    July 2, 2026 through November 30, 2026

    Officially published

Assessment notice: not yet verified.

How to pay

Sources. Checked .

Payment methods

Online, In person, Telephone, Mail

Officially published

Fees

Credit/debit cards: 2.35%, minimum $1.49. E-check from checking or savings: no charge.

Officially published

Late payments and penalties

Sources. Checked .

A 10% penalty applies to the first secured installment after December 10.

Officially published

A numerical example is unavailable without a verified single percentage and unit. Use the published rule or ask the county for a payoff amount.

Assessment appeals

Sources. Checked .

Deadline

November 30, 2026

Officially published

Appeal window

July 2, 2026 through November 30, 2026

Officially published

Where to file

Marin County Assessment Appeals Board

Officially published

Official appeal information

Officially published

Exemptions

Sources. Checked .

Homeowners' Exemption

Who may qualify

Qualifying owner-occupied principal residence on January 1; $7,000 reduction of taxable value.

Officially published

Official exemption information

Officially published

County offices

Sources. Checked .

Marin County Tax Collector

collector

Officially published

Phone

415-473-6133

Officially published

Official office website

Officially published

Marin County Assessor

assessor

Officially published

Phone

415-473-7215

Officially published

Official office website

Officially published

Common questions

Sources. Checked .

When is property tax due in Marin County?

First secured installment: November 1, 2026 (Officially published). Second secured installment: February 1, 2027 (Set by law).

Where can I pay Marin County property tax?

Use the official payment portal: https://www.marincounty.gov/departments/finance/property-tax/property-tax-payments. Online, In person, Telephone, Mail

What is the Marin County appeal deadline?

November 30, 2026. Marin County Assessment Appeals Board

What is the late-payment penalty for Marin County property tax?

A 10% penalty applies to the first secured installment after December 10.

Does Marin County charge a fee to pay property tax online?

Credit/debit cards: 2.35%, minimum $1.49. E-check from checking or savings: no charge.

Sources

Sources. Checked .

Read the source quotations (16)
https://www.marincounty.gov/news-releases/application-period-assessment-appeals-opens-july-2
Marin County property owners who disagree with the assessed value on their 2026-27 regular property tax bill

Checked .

https://www.marincounty.gov/departments/finance/property-tax/tax-collector
Notice: First installment of Secured Property Tax is due November 1, 2026, and becomes delinquent after December 10.

Checked .

https://boe.ca.gov/proptaxes/calendar.htm
§ 2606 Rev. & Tax. Code February 1 Property owners Second installment real property taxes due and payable.

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https://boe.ca.gov/proptaxes/calendar.htm
§§ 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.

Checked .

https://boe.ca.gov/proptaxes/calendar.htm
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)

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https://www.boe.ca.gov/proptaxes/homeowners_exemption.htm
Homeowners' Exemption

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https://www.boe.ca.gov/proptaxes/homeowners_exemption.htm
The California Constitution provides a $7,000 reduction in the taxable value for a qualifying owner-occupied home. The home must have been the principal place of residence of the owner on the lien date, January 1st.

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https://www.marincounty.gov/departments/finance/property-tax/property-tax-payments
View and Pay your Tax Bill Online.

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https://www.marincounty.gov/departments/finance/property-tax/property-tax-payments
Pay your bills online, in person, by phone, or by mail.

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https://www.marincounty.gov/departments/finance/property-tax/property-tax-payments
Credit/debit card payments: A third-party payment processor charges a service fee of 2.35% of the transaction amount (minimum $1.49 per transaction). E-Check: There is no charge to pay via E-Check electronic debit from your checking or savings account.

Checked .

https://www.marincounty.gov/departments/finance/property-tax/tax-collector
Notice: First installment of Secured Property Tax is due November 1, 2026, and becomes delinquent after December 10. A 10% penalty applies thereafter.

Checked .

https://www.marincounty.gov/news-releases/application-period-assessment-appeals-opens-july-2
Marin County property owners who disagree with the assessed value on their 2026-27 regular property tax bill have between July 2 and November 30 to file an appeal with the Marin County Assessment Appeals Board.

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How we verified this page

Official sources, verification dates and corrections

Property tax in Marin County: county, state and US

Compare Census estimates and read the sampling notes

Sources. Checked .

Census ACS 2020–2024 estimates for owner-occupied homes. The median annual tax paid is a historical survey estimate, not a quote for this year’s bill.

AreaMedian annual tax paidMedian home valueEffective rate estimate
Marin CountyUnavailable $1,507,300 Unavailable
California$5,124 $734,700 0.70%
United States$3,119 $332,700 0.94%

Effective rate = median annual real estate taxes paid (B25103) ÷ median owner-occupied home value (B25077). State and US figures use their own Census medians, not averages of counties. These ratios are not rates set by law or medians of individual tax rates. Differences are not tests of statistical significance. Bounded or missing estimates stay unavailable.

Census sources, quotations and sampling uncertainty

Marin County

Home value: $1,507,300 (90% margin of error: ±$27,346). Census table B25077_001E.

0500000US06041|1507300|27346

California

Annual taxes: $5,124 (90% margin of error: ±$17). Census table B25103_001E.

0400000US06|5124|17|5839|17|3825|19

Home value: $734,700 (90% margin of error: ±$1,307). Census table B25077_001E.

0400000US06|734700|1307

Estimated effective rate: 0.70%. Census source.

0400000US06|5124|17|5839|17|3825|19

United States

Annual taxes: $3,119 (90% margin of error: ±$4). Census table B25103_001E.

0100000US|3119|4|3489|4|2576|4

Home value: $332,700 (90% margin of error: ±$236). Census table B25077_001E.

0100000US|332700|236

Estimated effective rate: 0.94%. Census source.

0100000US|3119|4|3489|4|2576|4

Guides and related dates

Marin County property tax calculator

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Tools: Marin County, CA

Property tax calculator

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Millage rate calculator

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What's next for you

Marin County, CA

Due date:

Official source

Officially published. Verified October 24, 2026.

Notice: First installment of Secured Property Tax is due November 1, 2026, and becomes delinquent after December 10.

Check the official source

Reminders for your county

Marin County, CA. Calendar alerts are set for 14, 3 and 1 day before each verified due date.

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Updated , from cited verification dates. Individual sources may have earlier checks.