1065 Schedule k-1 Box 20(c) code AH

We have a family multi-member LLC.  It is a vacation cabin.  It is not rented only used as a family cabin (i.e., no income is generated).  I have been filing a 1065 and sending each partner a K-1 since 2009.   I put the Property Tax amount  on line 20 section c of schedule K - 1 with a comment (Property Tax and the amount).  We also have an Annual License Fee, I do the same for it.  They are both listed.  The K-1's gets generated for each partner and I send them out.   I just enter the amount I do not put a minus sign by the amount just leave it as a number.  The partners know it is property tax and handle accordingly on their tax return.  Does it matter that I do not put it as a negative amount?  I'm just double checking if I am dong this correctly.

Thank you