[BradleyT]

I'd probably e-mail your states department of revenue and ask them. I did that with an e-commerce question about charging sales tax to fellow WI residents and they gave me a pretty good answer.



Under Wisconsin law, a Wisconsin sale takes place at the time and place
where tangible personal property or taxable services transfers from the
seller or the seller's agent to the buyer or the buyer's agent. When
property is transferred from a seller to a purchaser via a common carrier or
by the United States postal service, the property shall be deemed in the
possession of the purchaser when it is turned over to the purchaser or its
agent by the common carrier or postal service at the designation regardless
of the f.o.b. point and regardless of the method by which freight or postage
is paid.

If this change of possession occurs in Wisconsin, it is a sale subject to
Wisconsin sales or use tax. County or stadium tax may be collected depending
on this location.

If this change of possession occurs outside Wisconsin, it is not a sale
subject to Wisconsin sales and use tax.

If the item being shipped is subject to Wisconsin sales and use tax,
shipping and handling charges would also be taxable.


(Sucks for me because we have 5%, 5.5%, and 5.6% state sales tax rates depending on what county you live in...that requires me to add about 300 zip codes to my e-commerce software for all the areas that charge 5.5 or 5.6)