India GST Calculator 2025

GST Calculator —
Add or Remove GST Instantly

Calculate GST for 5%, 12%, 18%, 28% slabs. Get CGST, SGST & IGST breakdown instantly for any invoice amount.

4 SlabsAll supported
CGST+SGSTSplit shown
InstantResults
🧾
Enter Amount
₹
📋
Breakdown
GST Amount (18%)
₹ 180.00
Pre-GST Amount₹ 1,000.00
Post-GST Total₹ 1,180.00
Tax Split (Intra-State)
CGST (9%)
₹ 90.00
SGST (9%)
₹ 90.00
IGST (18%)
₹ 180.00
🔗
Related Calculators
💵
Salary Calculator →
％
Percentage Calculator →
📊
EMI Calculator →
💳
Personal Loan →
💰
FD Calculator →
❓
Frequently Asked Questions
What is GST?+
GST is India’s unified indirect tax since 1 July 2017. It replaced VAT, service tax, central excise. Four main slabs: 5%, 12%, 18%, 28%.
How to add GST?+
GST Amount = Original × Rate / 100. Total = Original + GST. Example: ₹1,000 + 18% = ₹180 GST, Total = ₹1,180.
How to remove GST?+
Original = Inclusive Price ÷ (1 + Rate/100). Example: ₹1,180 ÷ 1.18 = ₹1,000.
IGST vs CGST vs SGST?+
Intra-state: CGST + SGST (each half). Inter-state: IGST at full rate. Example: 18% intra = 9% CGST + 9% SGST.
GST slab for my product?+
5% — essentials, medicines. 12% — processed food, electronics. 18% — services, IT. 28% — luxury, tobacco. 0% — fresh vegetables, milk.