Yes, you can create discounts for your invoices with the steps below.  

To add discounts for your invoices in digital banking 

1. Go to Transfer & pay. 
2. Select Send invoices. 
3. Go to Settings. 
4. Choose Invoice Items. 
5. Go to the Discount tab. 
6. Select Add discount. 
7. Enter the Name of the discount.  
8. Select the Type of discount. 
9. Enter the Value of the discount. 
10. Select Save.