Understanding Supplementary Tax Invoices
If you change a sales order for which you have already printed the tax invoice, you must generate the tax invoice again. When you generate the tax invoice again, the system checks for differences between the previous sales order and the current sales order. The differences can be caused by a change in the price of the item or the tax rates. If the system finds a difference in one or more sales orders, the Invoice Print program (R42565) automatically launches the Supplementary Tax Invoice program (R75I042). This program generates the supplementary tax invoice which shows the old sales order amount, new sales order amount, and the net tax amount. The supplementary tax invoice is applicable for excise, sales, and service taxes, TCS as well as VAT and WCT. The system does not generate supplementary tax invoices for sales orders for exported goods.
When you run the Supplementary Tax Invoice program and the tax rounding is defined by tax regime for all tax types, the system:
Calculates total new tax by tax regime and rounds it based on the rounding value.
Retrieves total old tax by tax regime including rounding.
Derives the net tax amount by calculating the difference between the old and the new taxes.
Distributes the rounding difference into each tax type in proportion to the tax type amount.
Prints the net tax amount by tax regime.
You send the supplementary tax invoice to the customer with the regenerated invoice to provide details of the difference in the invoice amount. The supplementary tax invoice is not a legal document.
When you generate an invoice, the system generates and prints these invoices:
Tax invoice
This invoice is based on the new values in all sales orders.
Supplementary tax invoice
This invoice contains details for only those sales orders for which the item cost or tax rate values have changed.
The Invoice Print program uses next numbers to assign invoice numbers to the supplementary tax invoices.