Calculate GST Amount
Enter the base amount (before GST)
Exclusive GST: Total = Amount × (1 + GST%) | GST = Amount × GST%
Understanding GST — Exclusive vs Inclusive
GST (Goods and Services Tax) is a value-added tax levied on most goods and services in India. It replaced multiple indirect taxes and has four main slabs: 5%, 12%, 18%, and 28%. Understanding whether GST is Exclusive or Inclusive is critical for accurate pricing and billing.
Exclusive GST (GST Added On Top)
When GST is Exclusive, the listed price does not include tax. GST is calculated on the base price and added separately. For example, if an item costs ₹1,000 and GST is 18%, the total payable is ₹1,000 + ₹180 = ₹1,180.
Inclusive GST (GST Already Included)
When GST is Inclusive, the listed price already includes the tax. To find the base amount, divide by (1 + GST%). For example, if an MRP is ₹1,000 and GST is 5%, the actual price is ₹1,000 ÷ 1.05 = ₹952.38, and GST is ₹47.62.
Frequently Asked Questions
Q1. What are the GST slabs in India?
India has four main GST tax slabs: 5% (essential goods like food), 12% (processed food, computers), 18% (most services, consumer goods), and 28% (luxury goods, automobiles). Some items like fresh produce are exempt (0% GST).
Q2. What is the difference between CGST, SGST, and IGST?
For intra-state transactions, GST is split equally between CGST (Central) and SGST (State). For inter-state transactions, IGST (Integrated) is levied. For example, 18% GST on an intra-state sale = 9% CGST + 9% SGST.
Q3. Can I use this calculator for invoice generation?
Yes! This calculator is perfect for quick checks before issuing an invoice. Enter the base amount, select your GST slab, and choose if GST is exclusive or inclusive to see the exact breakdown instantly.