There are three ways to file the Business Property Statements (571-L) 1. Filing your statement via the internet 2.What is business personal property? An annual filing of a Business Property Statement is a requirement of section. 441(d) of the California Revenue and Taxation Code. To pay for unsecured property (businesses, boats, and airplanes), you will need: Assessment number; Assessor's account number; Business name or business address. Download PDF BOE-571-L REV. Business Property Statements (Form 571-L) are due. May 7th: Last day to file the Business Property Statement without penalty. Department of Tax and Collections.