Fla. Stat. § 561.49
The excise taxes provided for in this chapter shall be paid as to all such beverages sold within this state. No excise tax shall be required to be paid by manufacturers, distributors, or exporters as to the sale of beverages which are actually delivered by such manufacturer, distributor, or exporter to persons outside the state when such deliveries are actually made outside the state in places where the sale of such beverages is authorized by law to persons authorized by the laws of the places where such delivery is made to purchase and receive such beverages in such places. The burden shall always be on the manufacturer, distributor, or exporter to show to the satisfaction of the division by bill of lading of a common carrier or other satisfactory evidence that delivery was made outside the state in accordance with the laws of the place of delivery.
Fla. Stat. § 561.49