Free Tool · CGST Act 2017 · IGST Act 2017
GST Calculator CGST / SGST / IGST
Add GST to a base amount or extract GST from a GST-inclusive price. Splits into CGST + SGST for intra-state transactions and IGST for inter-state transactions. Covers all notified GST rate slabs. All calculations are 100% client-side.
Enter transaction details
Enter the base (ex-GST) amount — compute GST and total invoice value.
%
Enter an amount above to compute GST.
Statutory Basis
Every computation in this tool is based on the following specific statutory provisions.
CGST — Intra-state Supplies
Section 9 of the Central Goods and Services Tax Act, 2017 — levy of central tax on intra-state supply of goods or services. Tax is split equally between CGST and SGST/UTGST at half the applicable rate each.
SGST / UTGST — Intra-state Supplies
Section 9 of the respective State GST Act / Section 7 of the Union Territory GST Act, 2017 — state/UT component of intra-state GST, collected at half the applicable rate.
IGST — Inter-state Supplies
Section 5 of the Integrated Goods and Services Tax Act, 2017 — levy of integrated tax on inter-state supply of goods or services at the full applicable rate.
GST Rate Slabs
Rates notified by the GST Council under the CGST (Rate) Notification and IGST (Rate) Notification — 0%, 0.1%, 0.25%, 1.5%, 3%, 5%, 6%, 7.5%, 12%, 18%, 28%.
Input Tax Credit (ITC)
Section 16 of the CGST Act, 2017 — every registered person is entitled to take credit of input tax on supply of goods or services used in the course of business, subject to conditions and restrictions.
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