"Streamline your personal property transactions with our General Bill of Sale Form. Buying or selling personal property?The owner of personal property as of January 1st is responsible for the unsecured tax bill. The owner of a shortterm rental filing form BOE571STR will be required to report the year acquired and the original cost of personal property. How Your Santa Clara County Property Tax Bill Works. Municipal Code Reference: 3-32. CAPS Code Reference: 1002920051802. If you are looking for a Business License or a Business Permit, you are in the right place. The City of San José calls this a Business Tax Certificate. Water main break, or a leak on your personal property.