eBay should really find a way to let buyers preview taxes, even if it's just "estimated", before they accept an offer or make a deal, because it's SO frusterating sending out offers to people watching my items, for them to ACCEPT the offer, or make me a counter offer which I accept, only to have them request to cancel the order after, because once they see the FULL price + shipping + taxes, they don't want the item anymore.
I've had this happen at least 3 different times now, and it's really getting on my nerves, having to reslist the item and start from scratch, losing my previous potential buyers watching my items. I buy on eBay too, I'm aware there ARE taxes i'll have to pay ontop of the "Buy It Now" or "Best Offer" price, people should be more considerate.