GST Calculator
PopularCalculate Goods and Services Tax with inclusive, exclusive, and CGST/SGST breakdowns
₹
₹ 100₹ 10,00,000
%
Calculation Result
Total Gross Invoice
₹11,800
Loading visualization...
Total GST Amount
₹1,800
CGST (Central)
₹900
SGST (State)
₹900
How this calculator works
1
Select exclusive mode (adding GST to base price) or inclusive mode (extracting GST from final MRP).
2
Pick a standard tax bracket (5%, 12%, 18%, 28%) or enter a custom rate.
3
Instantly view Net Amount, CGST, SGST, and Total Invoice Amount.
Formula & Mathematics
GST Exclusive and Inclusive Formulas
GST Amount = (Amount × Rate) / 100 (Exclusive); Net = Gross / (1 + Rate/100) (Inclusive)
In intra-state sales, GST is divided equally into Central GST (CGST) and State GST (SGST).
Worked Example
18% GST on a ₹10,000 Laptop Accessory
Exclusive GST calculation on ₹10,000.
• Base Price = ₹10,000
• GST at 18% = ₹1,800 (CGST 9% = ₹900, SGST 9% = ₹900)
• Final Invoice Total = ₹11,800
Customer pays ₹11,800, with ₹1,800 total tax collected.
Frequently Asked Questions
The primary slabs are 0% (essential food/grains), 5% (processed food, railway tickets), 12% (medicines, apparel), 18% (IT services, consumer electronics), and 28% (automobiles, luxury goods).
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