If I am trying to enter my 1095-A and only had insurance through marketplace for 4 months out of the year, why is it rejecting my 0 (zeros) in the columns?

[DawnC]

For the 8 months that you had no insurance, leave all columns A-C  blank; delete any zeros there.   You should only have entries in columns A-C only on the 4 months/lines you had the marketplace policy.  

For any month you have an amount in column A, you have to have a positive amount in column B, and any amount (including $0) in column C.   If there is no amount (or $0) in column A, leave all columns blank for that line.