Not sure what permit you would need to hold in order to buy distillate in bulk and then package it for sale. But I know it is done in the state of Kentucky with Bourbon all the time. Are you talking about leaving the herbs and spices in the bottle or aging the vodka on the stuff in bulk and filtering out the addatives? Reason I ask is if there is something in the bottle that changes the amount of distillate, that will change the amount of taxes you pay. Most likely you would be responsible for taxes, and record keeping of loss during packaging. If I were you I would give the TTB a call they are some what hard to get a hold of but do return messages and are pretty easy to work with. Then call your state ABC office and determine their needs. Good luck.
Joel Halbleib
VP of Operations / Zymurgist
Bluegrass Brewing Co
636 East Main St
Louisville, KY
www.bluegrassbrewing.com