The Marin County Assessor Supplemental Tax Estimator provides an estimate of the amount of supplemental taxes a taxpayer may anticipate. The supplemental tax bill is in addition to the annual tax bill. The purpose of this Supplemental Tax Estimator is to assist the taxpayer in planning for his/her supplemental taxes while waiting for their actual supplemental tax bill. It is not intended as a legal notice of supplemental taxes due.
There are a number of situations in which the Supplemental Tax Estimator will not be able to produce a reliable estimate. The most common are:
If you have an unusual situation such as one listed above or have additional questions about supplemental tax assessments, please contact the Marin County Assessor's Office by phone: (415) 473-7215, or email.
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