Fairfax, Marin County, California Property Taxes

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Property Taxes in Fairfax, California

Median Fairfax, California effective property tax rate: 1.61%, significantly higher than the national median of 1.02%, and higher than the California state median of 1.21%.
Median Fairfax, California home value: $706,269
Median annual Fairfax, California tax bill: $11,264, $8,864 higher than the national median property tax bill of $2,400.

How are property taxes in Marin calculated?

Property taxes in Fairfax, California are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding Fairfax's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Fairfax, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Fairfax, Marin County, California Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

1.61%

Estimate Property Tax Bill

$11,371

$10,552

How Does the Fairfax Property Tax Calculator Work?

Use this Fairfax property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Fairfax's median effective tax rate of 1.61% — based on actual property records in Marin County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Fairfax's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within Fairfax: rates range from 1.61% in 94930 to 1.61% in 94930, primarily due to differences in school district levies and local assessment districts.

For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Fairfax.

About Fairfax Property Taxes

About Property Taxes in Fairfax, Marin, California

Fairfax’s median effective property tax rate of 1.61% is higher than the California state median of 1.21% and higher than the national median of 1.02%. This rate reflects the Marin County base levy combined with local school district levies and Mello-Roos Community Facility Districts that vary by subdivision throughout the city.

Property tax rates are not uniform across Fairfax. Homeowners in the 94930 ZIP code carry a median effective rate of 1.61%, while those in the same ZIP code also pay 1.61%. This reflects how school district boundaries and local assessment districts are drawn across Marin County. Understanding which part of Fairfax you live in can make a meaningful difference to your annual tax bill.

Fairfax homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the December 1, 2026 deadline each year.

If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Fairfax, Marin County, California

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.

While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Fairfax's effective property tax rate to other cities in California and the median property tax rates in California and the U.S.

Property Tax Rates Across Fairfax, Marin County, California

Source: Ownwell

1.11%

1.36%

1.61%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Fairfax Tax Rate

1.61%

Median Effective Marin County Tax Rate

1.39%

Median Effective California Tax Rate

1.21%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Fairfax, Marin County, California

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
94930	1.35%	1.46%	1.61%	1.91%	2.68%

Source: Ownwell

Property Tax Assessment Values Across Fairfax, Marin County, California

When examining property taxes in Fairfax, California, understanding the distinction between "market value" and "assessed value" is crucial.

The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Marin County appraisal district estimates the market value for tax purposes.

The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

Assessment notices:

In Marin County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month when notices are sent.

Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Fairfax.

For example, the median home price in Fairfax is $706,269, with tax bills ranging significantly across the county. 94930 has the highest median home price at $706,269.

Property Tax Assessment Values Across Fairfax, Marin County, California

Source: Ownwell

$430,892

$1,472,162

$2,513,431

Median Fairfax Market Value

$706,269

Median Marin County Market Value

$841,979

Median California Market Value

$427,605

Median United States Market Value

$235,294

Property Tax Assessment Values Across Fairfax, Marin County, California

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
94930	$179,691	$382,226	$706,269	$1,043,771	$1,419,052

Source: Ownwell

Property Tax Bills Across Fairfax, Marin County, California

Fairfax property tax bills are calculated by applying the local tax rate to a home’s assessed value, which is based on the market value of the property. For homeowners in Fairfax, the median home price is $706,269, and that value helps shape the size of the annual tax bill. Local assessments, exemptions, and any applicable tax rates all play a role in determining what a homeowner owes.

In Fairfax, property tax bills can vary widely from one home to another. The 25th percentile tax bill is $7,125, while the 75th percentile tax bill is $15,342 and the 90th percentile tax bill is $19,524. The median tax bill is $11,264, which is well above the national median property tax bill of $2,400. That means many Fairfax homeowners face a significantly larger tax burden than the typical U.S. homeowner, making the assessed value of their property especially important.

Property Tax Bills Across Fairfax, Marin County, California

Source: Ownwell

$5,115

$18,644

$32,173

Median Fairfax Tax Bill

$11,264

Median Marin County Tax Bill

$11,574

Median California Tax Bill

$5,134

Median United States Tax Bill

$2,400

Property Tax Bills Across Fairfax, Marin County, California

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
94930	$4,702	$7,125	$11,264	$15,342	$19,524

Source: Ownwell

Don't miss the deadline to appeal!

Dates
Property Valuation Date	January 1
Appeal Deadline	December 1
Tax Bill
Issued	October 1
Due Date #1	December 10
Due Date #2	April 10

Links
Marin Tax Assessor
Website	apps.marincounty.org

Frequently Asked Property Tax Questions in Fairfax, California

How are property taxes calculated in Fairfax, California?

Property taxes in Fairfax, California are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.

How do I appeal my property taxes in Fairfax, California?

To appeal your property taxes in Fairfax, California, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.

What property tax exemptions are available in Fairfax, California?

Common property tax exemptions in Fairfax, California include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.

When are property taxes due in Fairfax, California?

Property tax deadlines in Fairfax, California vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.

How can Ownwell help reduce my property taxes in Fairfax, California?

Ownwell provides professional property tax appeal services in Fairfax, California. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.