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Marin County dates and official links

Marin County Property Tax Calculator

Estimate from home value, or use taxable value and the rate on your bill.

Tools: Marin County, CA

Property tax calculator

Estimate for Marin County, CA

Estimated annual property tax Not available yet

A usable Census rate has not been verified for this county. You can still enter taxable value and the applicable rate from your bill.

Estimate only. Not tax, legal or financial advice; confirm with your county.

Get county tax reminders

A Census estimate is unavailable. Choose taxable assessed value to use your own bill details.

The Census estimate describes owner-occupied homes in 2020–2024. It does not calculate a parcel’s current assessment or exemption savings. Use your bill details to test an exemption.

Official tax information

County, state and national effective rates
Marin County, CA
Not available
California
0.70%
United States
0.94%

Each rate is median annual taxes ÷ median home value for that area. These historical survey ratios are not tax rates set by law or averages of county rates. Displayed rates are rounded; calculations use the unrounded ratio.

California: math and Census sources

$5,124 median annual taxes ÷ $734,700 median home value = 0.70%. Census ACS 2020–2024.

Sources. Checked Oct 24, 2026.

Median home value
0400000US06|734700|1307

Official source. Checked Oct 24, 2026.

Median annual taxes
0400000US06|5124|17|5839|17|3825|19

Official source. Checked Oct 24, 2026.

Effective rate calculation
0400000US06|5124|17|5839|17|3825|19

Official source. Checked Oct 24, 2026.

United States: math and Census sources

$3,119 median annual taxes ÷ $332,700 median home value = 0.94%. Census ACS 2020–2024.

Sources. Checked Oct 24, 2026.

Median home value
0100000US|332700|236

Official source. Checked Oct 24, 2026.

Median annual taxes
0100000US|3119|4|3489|4|2576|4

Official source. Checked Oct 24, 2026.

Effective rate calculation
0100000US|3119|4|3489|4|2576|4

Official source. Checked Oct 24, 2026.

Survey estimates have sampling error and do not account for your parcel’s assessment, taxing districts or exemptions. Estimation methodology.

Due dates for Marin County, CA

First secured installment: November 1, 2026 (Officially published). Last day to pay without a penalty: December 10, 2026.

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

Official source. Officially published Checked Oct 24, 2026.

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

Official source. Officially published Checked Oct 24, 2026.

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

Official source. Officially published Checked Oct 24, 2026.

Second secured installment: February 1, 2027 (Set by law).

Installment label
§ 2606 Rev. & Tax. Code February 1 Property owners Second installment real property taxes due and payable.

Official source. Set by law Checked Oct 24, 2026.

Published due date
§ 2606 Rev. & Tax. Code February 1 Property owners Second installment real property taxes due and payable.

Official source. Set by law Checked Oct 24, 2026.

County dates and official payment links. Dates are published dates, not a statement of your account balance.

Exemptions you may be missing (1 programs in our records)

Exemptions you may be missing

Sources. Checked Oct 24, 2026.

Check the exemptions that may fit. A “Yes” does not confirm eligibility; your assessor makes that decision.

Homeowners' Exemption

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

Does this describe you?
Possible annual savings Answer above

We’ll show the next step for this exemption.

Estimate only. Not tax, legal or financial advice; confirm with your county.

Official eligibility and application

Eligibility source
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.

Official source. Officially published Checked Oct 24, 2026.

Full-year marginal estimates before tax ceilings, special charges or mid-year changes. Enter the taxable value before this exemption to avoid subtracting it twice. Estimates are separate. Do not add them together; eligibility, taxing units and restrictions can overlap.

Late payment penalty

Late payment penalty

Sources. Checked Oct 24, 2026.

Not available yet

A complete penalty rule and its payment deadline have not been verified here.

Estimate only. Not tax, legal or financial advice; confirm with your county.

Check the official information

Source details
Notice: First installment of Secured Property Tax is due November 1, 2026, and becomes delinquent after December 10. A 10% penalty applies thereafter.

Official source. Officially published Checked Oct 24, 2026.

Is my assessment too high?

Is my assessment too high?

Not available yet

County Census medians are unavailable, so we cannot make this comparison.

Estimate only. Not tax, legal or financial advice; confirm with your county.

Check the official information

Compare counties

Compare counties

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    Estimate only. Not tax, legal or financial advice; confirm with your county. How these estimates work.

    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

    Add to calendar Remind me

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