I have a LLC… And do you have list of ungated items and their authentic distributors?
If you’re doing retail arbitrage regularly, a sales tax exemption (resale certificate) can be worth it because it stops you paying sales tax at purchase, which improves cashflow and ROI, but only if you are genuinely buying inventory for resale and you properly collect/remit sales tax where required (or your marketplace is doing it for you under marketplace facilitator rules), and you still need to keep clean records because misuse can trigger penalties and audits.
Whether you should get one also depends on where you’re buying (some retailers won’t accept it, some require you to be set up as a business customer, and some states have specific rules about how the certificate can be used), so it’s “worth it” when your sourcing volume is high enough that the tax savings exceed the admin headache and compliance risk.
On the ungated-items + authentic distributors request, nobody can give a reliable universal “list of ungated items” because gating changes by category, brand, account, and time, and any static list goes stale quickly, but the practical approach is to build your own distributor shortlist by category: use well-known authorized wholesalers for your region, insist on invoices that meet Amazon’s requirements (your legal entity name/address, the supplier’s full details, dates within Amazon’s window, matching quantities/brands), and avoid retail receipts or invoice formats that look like consumer purchases.
If you tell me which marketplace you’re selling in (US/UK/EU) and which categories you want to target (beauty, grocery, toys, home, etc.), I can outline a safe, repeatable method to find authorized distributors and to check whether a specific brand is likely to require invoices, LOA, or testing, without relying on sketchy “ungated lists.”