The HSN code aids in determining the quantity of all items imported or traded through a nation. The Importance of the HSN Code While the primary purpose of the HSN code is the systematic classification of goods, it can also be used to gather data and solve problems that would otherwise be difficult to obtain. Learn everything about the HSN Code , including its definition, structure, and significance under GST. Discover how HSN code classification works for goods and services. Search HSN Code Holiday List Cause List Locate GST Practitioner (GSTP) Generate User ID for Unregistered Applicant Verify RFN Find GST tax rates using product name or HSN /SAC code . Learn how to search HS code by understanding its structure and how to find GST tax rate applicable to product or service.