Hello. I received my SSDI backpay throughout tax year 2018-however it was for the year 2017. If the income is apportioned properly to 2017 and 2018, then I am eligible for the full property tax credit in MO for both years. However, when I filed for the property tax credit for tax year 2018, I did not receive the full credit. Do I need to file/amend my 2017 return/property tax credit to account for the backpay that was received in 2018, but really for 2017, and file/amend for 2018 (and property tax credit) with only the 2018 income received? If there isn't a way to do this, I'd like to know that as well. Thank you in advance!