Note: I'm not a lawyer, so don't take this as legal advice if you're planning on selling alcohol online :) The 21st amendment lets each state set the rules for

Note: I'm not a lawyer, so don't take this as legal advice if you're planning on selling alcohol online :) The 21st amendment lets each state set the rules for the transportation of and importation of intoxicating liquors into that state. So the problem is not so much that it's prima facie illegal, as that each state has its own set of rules/taxes/requirements that you must comply with. I suppose a state could make it illegal to sell alcohol online.