How do I sign up for Direct Deposit? (wmwU e¨vsK পিএলপি).Fill out this authorization agreement along with verification from the bank showing the account number and routing numbers. CocoDoc collected lots of free authorisation letter for bank for our users. You can edit these PDF forms online and download them on your computer for free. You can use Form 8822 to notify the Internal. Revenue Service if you changed your home or business mailing address or your business location. An LLC bank account is a separate bank account for your limited liability company. Learn how to open an LLC bank account with Bank of America. This letter, addressed to an institutional representative, allows the bank to know that the person holding the letter is operating with your permission.