Michigan Department of Treasury verifies proper remittance of the tax by the retailer. Keep your receipt to prove you paid the tax to the retailer. If the seller collects tax, you must pay it to them. They are registered and authorized to collect the tax. If you paid tax when purchasing goods while traveling in another state, you fall under that state's jurisdiction and tax is due in that state.
Credit is given for state or local tax properly due and paid in another state or local jurisdiction.
There is no provision in our laws to allow credit for tax paid in another country or U.S. territory. I paid tax to Canada on items purchased there. There is no credit given for tax paid to Canada, other foreign countries, or U.S. territories. If you are aware that your actual purchases are more, you must pay the actual amount. No, if the item was returned for full credit, tax is not owed.