Ariz. Rev. Stat. § 42-5074
B. The tax base for the restaurant classification is the gross proceeds of sales or gross income derived from the business. The gross proceeds of sales or gross income derived from the following shall be deducted from the tax base:
E. For the purposes of section 42-5032.01, the department shall separately account for revenues collected under the restaurant classification from businesses operating restaurants, dining rooms, lunchrooms, lunch stands, soda fountains, catering services or similar establishments: