I've experienced the same thing. I had the same issue last year and just gave up.
This year I've double checked all the requirements. We are way under the assessment value. We lived at the residence all year. Etc, etc. The only thing that could be iffy is the Total Household Resources requirement. Even so, my wife makes less than $50k and I'm unemployed. She has student loan interest, which should reduce THR, and we have medical insurance portion of our auto policy that should reduce THR further. The only think I can find that might be considered other income is box 12b code DD from her W-2, but that should be her employer contribution to her medical insurance premium. Based on the state of Michigan Checklist for THR, and the document linked in this thread, that's not an addition for calculation THR.
By my best estimation the THR for our return should be around $45k, and we should qualify. I don't think turbotax is calculating this right, or at the very least need to show the components to users so they can see why they don't qualify.
