SuperCalc

GST Calculator

Calculate GST for any amount with all 4 Indian tax slabs (5%, 12%, 18%, 28%). See CGST/SGST split, switch between inclusive and exclusive, and use custom rates.

GST Calculator

Calculate GST with CGST/SGST split. Supports all 4 Indian GST slabs.

Amount does NOT include GST — GST will be added on top.

GST Rate
%
Base Price₹10,000.00
CGST (9%)₹900.00
SGST (9%)₹900.00
IGST (inter-state)₹1,800.00
GST Amount₹1,800.00
Total Price (with GST)₹11,800.00

How it works

GST Exclusive (adding GST): Multiply the base amount by the GST rate and add it. For ₹10,000 at 18%: GST = ₹1,800, Total = ₹11,800.

GST Inclusive (extracting GST): Divide the total by (1 + rate/100) to get the base price. For ₹11,800 at 18%: Base = ₹11,800 ÷ 1.18 = ₹10,000.

The GST is automatically split into CGST + SGST (equal halves) for intra-state transactions, or shown as IGST for inter-state. All math runs in your browser.

FAQ

What is GST?
GST (Goods and Services Tax) is India's unified indirect tax that replaced multiple central and state taxes. It has four main slabs: 5%, 12%, 18%, and 28%. GST is split into CGST (Central) and SGST (State) for intra-state transactions, or IGST for inter-state transactions.
What is the difference between GST exclusive and inclusive?
GST exclusive means the amount does NOT include GST — tax is added on top. GST inclusive means the amount already includes GST — the calculator extracts the tax component. MRP prices are typically GST inclusive; B2B invoices are often GST exclusive.
How is CGST and SGST calculated?
For intra-state (within the same state) transactions, GST is split equally between CGST and SGST. For example, 18% GST = 9% CGST + 9% SGST. For inter-state transactions, the full amount is charged as IGST (18%).
What GST rate applies to my product?
Common rates: 5% for packaged food, transport; 12% for processed food, furniture; 18% for most services, electronics, software; 28% for luxury items, cars, tobacco. Check the GST rate finder on cbic-gst.gov.in for specific HSN/SAC codes.
How do I calculate GST from an inclusive price?
To extract GST from an inclusive price: Base Price = Inclusive Price ÷ (1 + GST Rate/100). For example, ₹11,800 inclusive of 18% GST: Base = ₹11,800 ÷ 1.18 = ₹10,000. GST = ₹1,800.

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