There seems to be an issue with TT 2019 - I was running into similar issue where while adding Mortgage interest, it was showing refund but after I added all the mortgage deductions and it asked about if the mortgage is above 750k or 1M and I answered no, it switched itself to standard deduction and showed me owing money instead of a refund. Even if I change from standard to itemize, it was showing me owing money to IRS as the Total of itemized was less than $24400. I chatted with TT support personnel and walked her through what I was doing and she told me that she had helped another user last week with the same issue - she did not accept that its a bug but it seems like it is. However for anyone running into similar issue, the fix is to g into Forms view instead of EasyStep, look for form that says "Tax & Int Wks" and inside that form, towards the end there is a section called "Mortgage Interest Limited Smart Worksheet" - look for line that says "Does your mortgage interest need to be limited:" If "YES" checkbox is selected, then click on the "NO" checkbox and that should fix the problem. TT then should recompute and show show you the correct amount of deductions under itemized deductions. You can switch back to EasyStep and should show a refund (if that was the case earlier).
