In the state of CA, the payment terms must be in the lease:
If the agreement does not specify the form of payment, any form will be considered acceptable. If rent can be paid in person, the agreement must include the days and hours payment will be accepted. If rent can be paid only by mail, then it is presumed paid on the date it is mailed, if the tenant can show proof of mailing. If rent can be deposited at a financial institution, the owner must disclose the account number and name and address of the institution, which must be within five miles of the tenant's residence.
