New legislation effective January 1, 2006, requires a seller or his or her agent to deliver to the prospective purchaser a disclosure notice that includes both of the following:

(1)  A notice, in at least 12-point type or a contrasting color, as follows:
"California property tax law requires the Assessor to revalue real property at the time the ownership of the property changes. Because of this law, you may receive one or two supplemental tax bills, depending on when your loan closes.
The supplemental tax bills are not mailed to your lender. If you have arranged for your property tax payments to be paid through an impound account, the supplemental tax bills will not be paid by your lender. It is your responsibility to pay these supplemental bills directly to the Tax Collector.
If you have any question concerning this matter, please call your local Tax Collector's Office."
(2) A title must be included in at least 14-point type or a contrasting color that reads as follows: "Notice of Your 'Supplemental' Property Tax Bill."

The disclosure notice requirements of this section may be satisfied by including the required information in the Mello-Roos disclosure (see Part I, Section I, Subsection A, Item 5 – Mello-Roos Bonds and Taxes). Supplemental taxes may be assessed whether a new loan is obtained or an existing loan is assumed to accomplish the purchase of the property, or whether the property is purchased without financing.

(Cal. Civ. §1102.6c)