I have completed my IRS taxes on TurboTax for the last 5 years using the free online option. I have to complete back taxes for the State of Illinois from 2015, 2016 and 2017. If I purchase the Deluxe version for these three years, will I be able to complete my Illinois state taxes? The key is I need either A. Access to my old completed 1040 forms or B. the ability to complete using data on the 1040 saved in Turbotax.