GST Tariff is a two-volume ready-reckoner that settles one question for any supply in India—what the tax rate is—in a single lookup. Goods are arranged by HSN down to the eight-digit Tariff Item, and services by Service Heading down to the six-digit Service Code, with CGST, SGST/UTGST, and IGST read off in one row. What sets it apart is that it works at the point of decision: every entry carries the rate together with its exemption notifications, pre-packaged and labelled flags, E-Way Bill indicators, Latest Clarifications, Latest Case Laws and the governing Notes—so the rate, the exemption and the interpretation that decides borderline cases never have to be chased across sources. It also compiles the Allied-Act duties that run alongside GST and the new Health Security se National Security Cess (Act 2025, Rules 2026), the full body of rate-and-exemption notifications, and exhaustive Commodity and Services Indices.