We recently bought a plot of land in

From what I've read tax on land is around 18% and will vary according to the type of land. No doubt Modi can confirm this. Can't understand the other tax re the mortgage if you did not have one, sounds like a mistake or rip-off! Was there a mortgage on the house to be cleared?

Tax on agricutlural land is 11% of the price paid.   You will then have paid the registration costs for the atto (repertorio)  which are about 250 euros.   You will also have paid two tax stamps of 50 euros each.   The imposta ipotecaria is not to do with mortgages, but a serach and registration fee.  I dont understand why you would have paid for a relazione al mutuo, as you didnt ask for one, it may be that the owner did however, and they thought they could pass it on to you without you noticing.    If the notaio who did the atto charged you 275 for his fees and the registration then you got a bargain.    This depends if it is agricultural land, or if it is land with a building concession already granted, in which case it is buildable land and subject to other taxes. If you want send me your fattura then PM me,  and tell me the price you paid for the land, Ill be able to tell you if its accurate.