Where do I indicate income is apportioned 100% to one state?

[tarakerr]

This is a partnership return w/ NC residents but business is done in SC and therefore 100% apportioned to SC.

[PatriciaV]

The apportionment question appears during the interview for the state return. Look for the page "Apportionment and Allocation." Continue to answer the interview questions about apportioning your business income.