I have a question on sales tax. I am in the middle of building my online website. I will be selling wedding and baby favors. I don't have a store front. This is only a online company. I have a few vendors that I am buying favors from. So, my question is do I add the tax from where the online store is(Long island) or do I have to use the tax from every vendors. Can someone please clarify what gets taxed and what customers doesnt.

Thanks in advance