Thank you, that helps a lot. I figured it meant a negative number but wasn't sure. The 1098s I was referring to are for reporting mortgage interest. I received two different ones after I refinanced this year (one for the old loan and one for the current one). The one for the old loan has the number in parenthesis in Box 10. I think I will just leave it as a 0 in Turbotax since the system won't let me put in a negative number in that field.
