CommentSold has purchased Avalara accounts for ALL CommentSold customers. This means that you automatically get a FREE Avalara account! With this integration, Avalara will automatically do the sales tax calculation for you (including all states in the US!) and will store this information for you to review/remit sales tax. This will ALSO account for the sales tax from returned items.
We can sync your previous orders over to Avalara once you set it up, so that you can get reporting for your existing orders.