How do e-commerce sites charge NY sales taxes?
I am trying to figure out how to charge sales taxes on an e-commerce site. I will be based in NY and be selling mainly gift items. I was told that I need to charge all orders being shipped to a NY address NY sales taxes based on the NYS County jurisdiction list Publication 718 (and not by zipcode). The problem is that there are about 83 counties/localities and I don't know how to make my website charge according to these counties. I can only set up my program to calculate by state or zipcode.
I was just wondering if there were any tips as to how I would charge sales tax on my e-commerce customers in NY. How do other e-commerce sites do it?