Don't worry about it until you after you enter your data. Some things that roll forward from last year result in taxable income this year until you give it the rest of the information it needs. I saw what is probably the same HSA issue when I started to do some scenarios late last year for end of year planning but it went away when I entered my 2017 medical insurance information. Another thing could be a state and/or local tax refund. The amount owed/to be refunded does not mean much until you get everything input.