<prompt> Human: I was recently contacted by a company I made a online purchase from back March of 2012. It was for a device that I used on my server rack here at home. Theyre saying that back when I made the purchase I didnt pay tax on the item. They sent me an invoice showing how much I would be charged and the tax was included.The original email correspondence had the Invoice included. I told them I would like to purchase the device via Credit Card instead of a Purchase Order. They sent the information over to their accounting department which sent me a link to purchase the device online. I put in my credit card information and agreed on the amount shown on the screen.Am I still liable for the tax on this purchase? I live in Tennessee and theyre from outside the stateinternational company. Only reason I ask is because its quite a hefty sum just for taxes, otherwise I would just pay it. Im not sure which subreddit I should have posted this on either, so Ill only post it here unless otherwise told it needs to go somewhere else.Thank you all for your help! Hope your week is going well!  <response>: Tell em to pound sand imo 