This tool is an OCi System Pte Ltd initiative to facilitate Singapore SMEs in identifying the correct GST to charge their clients during the phase of GST rate change in 1st Jan 2023.

The tool is designed to assist users in identifying their invoice tax rate based on the dates of their transactions.
To the best of our knowledge and limited resource, this GST Rate Change Helper tool is provided as is.
It is still the responsibility of individual users verify their own entries, and check with IRAS website when necessary.