Shelly Scott, Assessor - Recorder - County Clerk

The Assessor is responsible for the preparation of the local secured and unsecured Assessment Roll. The official list of all assessable property in the county which constitute the major portion of the ad valorem tax base for local government. The responsibilities included in preparing these rolls are:

  1. Discover and inventory all tangible property within the county.
  2. Determine the taxability of all tangible property within the county.
  3. Value all taxable property as specified under Article XIIIA of the California Constitution (Proposition 13).

Important Notice: The Marin County Assessor’s Office staff is forbidden by California legal codes to practice law or provide legal advice; this prohibition includes giving advice about what forms you might need or how you should fill them out.

News and Announcements

Posted: March 01, 2019
Source: Assessor

Posted: November 17, 2017
Source: Assessor

Posted: November 01, 2016
Source: Assessor

This form is only accepted from July 1 through October 31, 2019, inclusive.

Frequently Visited
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Assessment Appeals

View information and details on the assessment appeals process.

Supplemental Tax Estimator

Link to the supplemental tax estimator application.

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Detailed information on exemptions and exclusions.

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Find information on Marin Real Estate Sales Statistics.

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Property Value

My property is valued too high. What can I do?

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