by ShopSite David » Mon Dec 03, 2018 4:22 pm
Probably the best thing to do would be to try it out for free.
Avatax is currently offering a free 60 day trial:
https://buy.avalara.com/signup?partner=SHOPSITE
TaxJar is offereing a free 30 day trial:
https://taxjar.grsm.io/shopsite
There is not really anything to see on the shopper side. When they enter their zip code an initial tax rate is calculated. When they enter the Ship To address on the billing screen the tax is recalculated with the additional street information and then updated if it changed.
ShopSite communicates behind the scene with TaxJar or Avatax similar to how it communicates with a shipper such as UPS or FedEX.