in forms mode entries must be made in the appropriate worksheet, not the actual form which is an override that voids the accuracy guarantee and prevents e-filing. entries are not made directly in form 8582. they carry from other forms like K-1's, or schedule E page 1 and even certain other forms. why not enter the amounts from the mock k-1 into an actual k1 depending on the type of entity.
if the mock k-1 is because it is a foreign partnership certain other forms are required. any instructions for the k-1 should tell you
with the k-1 certain boxes need to be entered -
ID #
name
if Publicly traded partnership that box needs to be checked (these are special and nothing will flow to form 8582)
boxes G and H need to be answered
at risk question needs to be answered
then you should be able to enter the part III amounts.
