SAP Knowledge Base Article - Public

3298091 - GST Rate Change for Singapore Country


You try to create a new supplier invoice in January month however, system considers new changed tax rate as opposed to old one. This is allowed as per Singapore laws where an invoice created in new year can still carry previous year tax rate.

As per Singapore law, post 2023 Jan GST rate is increased to 8% from 7%. This may again gets updated in coming years and customers are legally allowed to post an invoice on 2023 using the old rate if the work was performed before 2023.


SAP Business ByDesign

Reproducing the Issue

  1. Navigate to Supplier Invoicing work center
  2. New Supplier Invoice
  3. Enter necessary data and in Items tab, under taxes section for the selected tax code, new tax rate is reflected


As per the system design, when the new invoice is created, the tax date is selected in the current year. So the tax rate is directly picked based on the tax date and hence new rate will be picked.


Eventhough new tax rate is updated in system, you can still create invoice with old rate just by changing tax date to previous year. By this method, two different invoices in same year can have multiple tax rates depending on the tax date.

p.s. Same solution can be applied to any other country's new tax rate change scenario


Tax rate, Tax code, Supplier Invoice , KBA , SRD-FIN-TAX , Tax Management , SRD-FIN-GLO-TAX , GLO - Tax Declaration , Problem


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