State tax filing

Thanks for this community thread.

 

I encountered this issue in June, so TurboTax still doesn't have this resolved completely.

 

My situation is that I have a mortgage and HELOC both before Dec 2017.   I had a negative value in the Mortgage Interest calculation, which led me to begin doing research.   This thread will save me over $1000 in tax overpayment, so I really appreciate surfacing this error.