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GSTwala › GST Calculator

GST Calculator India

Add or remove GST for any amount. Get instant CGST, SGST and IGST breakdowns for all GST slabs — 3%, 5%, 12%, 18% and 28%.

Enter Details
₹
Total Amount (with GST)
₹0.00
Base Amount (excl. GST)₹0.00
GST Amount₹0.00
CGST (Intra-state 50%)₹0.00
SGST (Intra-state 50%)₹0.00
IGST (Inter-state 100%)₹0.00
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How to Calculate GST in India

GST (Goods and Services Tax) in India has five main slabs: 3%, 5%, 12%, 18%, and 28%. To add GST to a base amount, multiply the base by the GST rate percentage and add it. To remove GST from an inclusive amount, divide by (1 + GST rate/100).

Formula to Add GST: Total = Base Amount × (1 + GST Rate/100)

Formula to Remove GST: Base Amount = Total ÷ (1 + GST Rate/100)

For intra-state transactions, GST is split equally between CGST (Central GST) and SGST (State GST). For inter-state transactions, the full GST applies as IGST (Integrated GST).

GST Rate Slabs in India 2025–26

GST RateExamples of Goods/Services
0% (Exempt)Fresh vegetables, milk, eggs, books, newspapers
3%Gold, silver, precious metals and jewellery
5%Packaged food, tea, coffee, economy hotels, transport
12%Butter, cheese, mobile phones, computers, medicines
18%Most services, electronics, restaurants, software
28%Luxury cars, motorcycles, tobacco, cement, air-conditioners

Frequently Asked Questions

What is the GST rate for services in India? +
Most services in India attract 18% GST. This includes professional services like CA fees, legal services, IT services, telecom, and most business services. Some services like healthcare and education are exempt from GST.
How is CGST and SGST calculated? +
For intra-state (within same state) transactions, the total GST is split equally between CGST and SGST. For example, on 18% GST, you pay 9% CGST to the central government and 9% SGST to the state government.
What is IGST and when does it apply? +
IGST (Integrated GST) applies to inter-state transactions — when goods or services are sold from one state to another. The full GST rate applies as IGST instead of being split into CGST and SGST.
Is GST applicable on exports? +
No. Exports are zero-rated under GST in India, meaning GST rate is 0% on exported goods and services. Exporters can also claim a refund on input tax credit (ITC) paid on inputs used for export.