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.The handbook is currently only available online. The Client Trust Account Protection Program, formed in the wake the Girardi debacle, requires attorneys to register their client trust accounts annually. In this guide, we will explore the importance of client trust accounts and provide an overview of how you should set up and maintain them. Handbook on Client Trust Accounting for California. Attorneys, which is available on the State Bar's website. You must provide a California trust accounting to anyone with an interest or involvement in the trust. The client trust bank account is set up so that the interest the account earns will be paid to the State Bar of California. Unlike probate, a living trust lets you transfer assets privately upon death.