There are various ways for interest support. And it’s depend on each company. Therefore, there is no template for it. But there are two ways in the system. One is customising the customer-exit. The other is editing directly on Excel sheet.
Under certain circumstances, interest support from company should be taxed. Please refer to the appropriate employment tax guide-lines for the statutory bases of such interest support. In case of taxed interest support, field Taxed on screen Infotype 0045 indicates the status.
Repayment plan with interest support (Edit mode)
Interest support data