I live in Taxachusetts (Massachusetts) I was told by the dealer when I trade in my old tractor that I paid the 5% sales tax on I cannot deduct that trade in cost of the tax on the new tractor. Example, if the dealers trade in value is $5000.00 and the sales tax is 5% this equals $250.00.Is it true that you pay the entire tax of a new tractor even though you are trading in a tractor that you already paided tax on?This does not seem fair to be taxed twice.