## Zoho Billing - Product, solutions, integrations, support, and resources Index Access the complete documentation index at: https://www.zoho.com/en-sg/billing/llms.txt Use this file to discover all available documentation pages before proceeding. [Back](./) # What is a tax category? A tax category determines how taxes apply to an item based on its type. In Singapore, different items fall under specific tax categories. They can be standard-rated (**8%** or **9%**), zero-rated (**0%**), or exempt from GST.