So, how do you decide which table to trust? It comes down to a simple hierarchy:

1. State government websites (primary source)
2. Tax Foundation and Public Health Law Center (secondary, but reputable)
3. Industry blogs and newsletters (tertiary, use with caution)
4. Distributor price sheets (convenient, but not authoritative)

When you're shipping to a new state, spend ten minutes verifying the rate. If you're already shipping to a state, set a reminder to re-check at least twice a year. The cost of being wrong is more than just the back taxes—it can include penalties and interest, and in worst-case scenarios, it can put your license at risk.

If you're selling in multiple states, you might want to build a simple spreadsheet that lists each state, the rate, the tax base, and the effective date. Update it whenever you do your quarterly review. That spreadsheet becomes your single source of truth for your own business.

Remember, tax laws are complex and change frequently. This guide is educational, not legal advice. For any specific situation, consult a tax professional who knows the vape industry.