The Singapore government has announced an update in the GST rate from 7% to 8% on 1st January 2023 and 8% to 9% on 1st January 2024. In preparation of this, TenderBoard has updated its tax functionality to allow for submission of purchases with different tax rates.
You may find out more about the changes here: https://help.tenderboard.biz/en/support/solutions/articles/36000413196-how-do-i-submit-a-quotation-with-a-different-tax-rate-