There are two people on the deed to my home. The first person pays the mortgage and the second person pays the property taxes. We have been filing all the property taxes on the first person's taxes because it is on our 1098. However, it has recently come to our attention anyone can file for these property taxes just so long as their name is on the deed. Michigan has the Homestead Property Tax Credit and the second person qualifies for all of it once we move the property taxes to their return and remove them from the first person's taxes. My question is: Michigan allows people to amend their return for up to four years. However, the federal is only three. Do both people have to amend their taxes for 2017 on the federal side or just for the state? For all the subsequent years, 2018, 2019, and 2020 this is obvious but no so for 2017.
