FREQUENTLY ASKED QUESTIONS

What is a Supplemental (S/B 813) Assessment?

Supplemental Assessments are one-time only assessments which supplement the regular annual assessment. They are created each time a property is reappraised due to a change in ownership or new construction. They are based on the difference between the prior and the new assessment. This/these bill(s) or refund(s) may cover from 1 to 17 months.

What is the Lien Date?

The lien date is the date the assessment becomes a lien on the property. All taxable property is put on the assessment roll as of this date. In the case of construction in progress, the value reflected is that of its stage of completion on lien date.

New legislation has established January 1 as the lien date for future tax rolls. (From 1967 to 1996, the lien date was March 1).

If I add on to my home, will the whole property be reappraised?

No. Only the newly constructed portion will be assessed at its current value. The original portion will retain is adjusted base value.

My property value was reduced under Proposition 8. Now the Assessment has increased. Why?

Proposition 8 provides that your taxable value does not exceed the current market value of the property. Once a value is reduced under Proposition 8, it is reviewed annually and adjusted according to the market value. Once the market value exceeds the adjusted base value, it will be restored.

Why are my neighbor’s and my tax bills different when the houses are the same?

Proposition 13, passed by the voters in June 1978, established 1975 as the original base year value and requires that the base value of a property be established as of the date of change of ownership, or as of the date of completion of new construction. If you and your neighbor purchased your properties in different years or have different construction dates, your base values reflect different market values.

I had a boat, aircraft, or unsecured business property which I sold after January 1. Do I still owe the taxes for the next fiscal year?

Yes. If you owned a boat or other unsecured property on the lien date, the taxes are your responsibility for the subsequent year. Payment of taxes is between buyer and seller.

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Siskiyou County Assessor's Office
311 4th Street, Room 108, Yreka, CA 96097
Telephone: (530) 842-8036, Fax Number: (530) 842-8059
Mike Mallory: Email || Website