Example: If a non-resident pledges stocks, bonds, or other intangible personal property in this state as security for the payment of indebtedness, taxes, etc., incurred in connection with a business in this state, the property has a business situs here. Again, if a non-resident maintains a branch office here and a bank account on which the agent in charge of the branch office may draw for the payment of expenses in connection with the activities in this state, the bank account has a business situs here.
Ariz. Admin. Code § R15-2C-602