There are two factors that determine whether you need the alcohol tax bond.
1. Are you in the manufacturing, distribution or warehousing of alcohol products including winemakers, brewer, and distillers
2. Are you or your company liable for more than 50,000 in excise taxes for your alcohol business.
If the answer to both questions above is yes, then you will need a alcohol tax bond (federal TTB) Winemaker, Distileld Spirit, Brewer Bond
To know for sure whether you need a bond or not, please use the requirement document tool by TTB online: https://www.ttb.gov/ponl/permits-online-required-documents