You are not required to notify anyone before transferring trust account to a new bank. Ensure that all outstanding checks on the existing trust account are accounted for. Ensure that the old bank properly pays all interest owed the Lawyer Trust Account Commission. Then file a supplement or amendment to your client security report within 30 days after moving the account. This is best done by sending a letter with your new trust account information (name and address of financial institution, account number and title of account) to: Office of Professional Regulation, Attn: Lawyers Trust Account, Iowa Judicial Building, 1111 East Court Avenue, Des Moines, Iowa, 50319.