Supplemental Tax Estimator
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:
- More than one change in ownership has occurred in a calendar year.
- A change in ownership and new construction has occurred in a calendar year.
- Partial interest transfers where less than 100% of the property has been reassessed.
- New housing tracts or condominium subdivisions in which the map recording and change in ownership has occurred in the same calendar year.
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.