GST Rate on Geology

The GST rate on geology is 18%, under SAC code 998341 (geological and geophysical consulting). Here is the full breakdown, a worked example, and related rates in Services.

GST rate breakdown for geology

Rates reflect the GST 2.0 structure effective 22 September 2025 (slabs 0%, 5%, 18%, 40%). Confirm the current rate on the official GST portal before invoicing.

Worked example: GST on geology

FAQs about GST on geology

What is the GST rate on geology?

The GST rate on geology is 18%. Intra-state it is 9% CGST + 9% SGST; inter-state it is 18% IGST. Geology falls under SAC code 998341.

What is the HSN code for geology?

Geology falls under SAC code 998341, which covers geological and geophysical consulting. Show this code on every GST tax invoice line for geology.