You must create a surcharge for each size of beverage you sell.

To create a Sweetened Beverage Tax surcharge:

• Select Maintenance > Taxes > Surcharge.
• Click New to create a new surcharge.
  
• Under the ‘Settings’ group bar, type a name for the surcharge, such as ‘18ozSweetBev.’
• Select Amount as the ‘Method.’
• Type the amount per ounce in ‘Amount.’ For example, 0.18 for 18 oz drinks, 0.12 for 12 oz drinks.
• Select your existing beverage tax group from the ‘Tax surcharge’ list box, only if the local taxing authority requires you to tax the surcharge.
• Click Save.
• Repeat this procedure to create other surcharges specific to the fluid ounces of the product.
• Exit the Surcharge function.

Continue to "Creating Sweetened Beverage Tax tax group."