The trust accounting handbook is a practical guide created to assist attorneys to comply with recordkeeping standards for client trust accounts. Under Rule 1.15, California attorneys are required to maintain sufficient records to track how much money is held for each client at all times.Learn about the basics of client trust accounting. This handbook provides essential guidelines on client trust accounting for California attorneys. Attorneys are required to register client trust accounts (IOLTAs included) with the State Bar every year. Annual Self-Assessment. The Client Trust Account Protection Program aims to protect the public in a slightly different way. But more on this later. Ocean Estate Law, PC University of the Pacific - McGeorge School of Law. Let us help build your wealth strategy.