1095A Columns are completed when you receive the form.  If there are $0s in column C it should be  because the TP didn't take advance premium tax credit. 

Do you mean column B. Column C is filled out by the market place insurer, and if the column is blank then your client got no advance payments of the PTC, and you leave it blank.

Thank you so much.  I believe we still have to use the chart for Column B correct?

You copy the information from the 1095A onto the 1095A Worksheet. The program will do the rest.

If the 1095A has amounts in column B use those amounts. If blank go to this link.

https://www.healthcare.gov/tax-tool/#/