That might be very well what is going on. I moved the cost to another column just to make sure it was not a bug, and sure enough my state return still was reduced by $20. I should have thought to try that before asking my question. The small amount in an area I do not use yearly felt like a possible area for a bug.
Thank you for your help!
Note: I have full intent of putting all of my income and expenses in my return.
