## Documentation Index Access the complete documentation index at: https://www.zoho.com/en-sg/books/kb/llms.txt Use this file to discover all available documentation pages before proceeding. [Back](./) # What is a tax category? A tax category defines how GST applies to an item based on its type. In Singapore, items fall under categories such as standard-rated (8% or 9%), zero-rated (0%), or exempt from GST.