What is a supplemental assessment?
A supplemental assessment is an increase or decrease in assessed value that is generated by a “supplemental event” such as a change in ownership or completion of new construction.

The Assessor’s office is responsible for reassessing real property. Questions regarding property valuation may be directed to that office at 530-265-1232.

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1. What is a supplemental tax bill?
2. What is a supplemental assessment?
3. What is a negative supplemental tax bill?
4. If I receive a supplemental tax bill, will I also receive an annual tax bill?
5. If I pay taxes through an impound account, will my supplemental tax bill be sent to my lender?
6. Do I have the right to appeal the supplemental assessment?