Form 16 and previous employer income

Hi ,

My client has a requiment. They will maintain infotype 580 ,as per the provisional form16 or payslips given by employees.

The requirement is the information in infotype 580 should be displayed on form16 under the head previous employer tax details ,but should not be added to our compnay earnings,As a resut of which we will have only our company details for tax consideration.

Is there any BADI  given by SAP to implement the above kind of requirement ? As far my knowledge goes ,this is not allowed in standard. Please advise.