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GST Calculator

Add GST to a price or extract GST from a GST-inclusive price — with all Indian slabs.

Net Amount (excl. GST)₹0
GST Amount₹0
CGST (50%)₹0
SGST (50%)₹0
Gross Amount (incl. GST)₹0

What is GST?

GST (Goods and Services Tax) is India's unified indirect tax, launched on 1 July 2017. It replaced a maze of earlier taxes like VAT, service tax and excise duty. GST is charged at every stage of the supply chain, but businesses claim credit for the tax they paid on inputs — so the final consumer effectively bears the tax.

GST slabs in India

SlabCommon examples
5%Packaged food, economy rail tickets, small restaurants
12%Processed food, computers, business-class rail
18%Most services, electronics, restaurant dining
28%Luxury cars, tobacco, aerated drinks

How the calculator works

  • Add GST: Gross = Net × (1 + rate/100). Used when quoting prices exclusive of tax.
  • Remove GST: Net = Gross ÷ (1 + rate/100). Used to find the pre-tax value of a bill.
  • CGST/SGST split: for intra-state sales, GST is split equally between Central and State governments — hence the 50/50 split shown above.

Frequently asked questions

What is the difference between CGST, SGST and IGST?

CGST and SGST apply to sales within a state (split 50/50 between Centre and State). IGST applies to inter-state sales and imports, collected entirely by the Centre.

How do I remove 18% GST from a bill amount?

Divide the GST-inclusive amount by 1.18. For example, ₹11,800 ÷ 1.18 = ₹10,000 net, so GST is ₹1,800. Select "Remove GST" above and the calculator does it instantly.

Is GST charged on the discounted price or MRP?

GST is charged on the transaction value — the actual price paid after discounts, not the printed MRP.

Do I need GST registration to use this tool?

No. This calculator is for anyone — shoppers checking bills, freelancers quoting prices, or small businesses doing quick math.