Deductions & credits

It sounds like I can't use form 843, on the form it states...

Do not use Form 843 if your claim or request involves:
(a) an overpayment of income taxes or an employer’s claim for FICA tax, RRTA tax, or income tax withholding (use the appropriate amended tax return)

 

I'm using the Turbotax business software to file my S-corp taxes. Where do I enter this overpayment in the software? Or should this be done on my 1040?

Thank you