At IMSA home page, scroll down to Information Board to view Netiquette annoucement.
Look out for Netiquette Announcement (update change of GST Tax %, if any).
Administrator (authorised user) is allowed to edit the tax rate.
1) To set GST Features and Tax Codes
2) To view GST Tax Codes
3) Transaction with GST Code
GST report will only capture transactions with GST code.
4) GST Form 5 (Sample) is only available at AMSA System