Go to GST Singapore -> Tax code 



Here to Add the Tax Code 


 

For Sales add as SR9 and make sure the rate is 9%



For Purchase add as TX9 and make sure the rate is 9%



On 01Jan2024

Reupdate all the tax code in debtor listing 


Select the Old code in Filter the following record for updating

And put the New code in Field to be updated

 


After done all the customer tax code will auto update to new code



**Same Step in Creditor Side** 


You can also do the quick update On Stock - Product.

Click the Quick Update -> General Update



Tick 'Update Tax Code', Select SR8 Taxcode on 'When Sold' ,

Fliter the following records for updating, Tax Code select 'SR'



After done all the tax code will auto update to new code



User still able to choose the old code when create sales invoice for year 2023