Free GST Calculator India (Inclusive & Exclusive Slabs)
Quickly calculate Goods and Services Tax (GST) for invoices, business billing, and retail shopping. Compute tax addition (Exclusive) or reverse tax extraction (Inclusive) across all official Indian slabs (5%, 12%, 18%, 28%).
GST Parameters
Instant 0msAdds GST on top of the entered base price.
₹10,000.00
₹1,800.00
Understanding Goods & Services Tax (GST) in India
Complete guide to inclusive/exclusive calculations, official rate slabs, and CGST/SGST/IGST structure.
Inclusive vs Exclusive GST Formulas
1. GST Exclusive (Adding Tax):
GST Amount = (Base Price × GST Rate) ÷ 100
Gross Total = Base Price + GST Amount
2. GST Inclusive (Extracting Base):
Base Price = (Total Retail Price × 100) ÷ (100 + GST Rate)
GST Amount = Total Retail Price - Base Price
CGST, SGST & IGST Bifurcation
The Indian GST framework bifurcates tax depending on the supply jurisdiction:
GST is split equally into Central GST (CGST) and State/UT GST (SGST). For example, an 18% rate becomes 9% CGST + 9% SGST.
The entire tax is levied as Integrated GST (IGST) collected by the Central Government.
Official GST Tax Slabs in India
Packaged food grains, edible oil, tea, rail transport, and lifesaving medicines.
Processed food items, business software, mobile phones, and non-AC restaurants.
IT services, consulting, consumer electronics, financial services, and hotel rooms.
Automobiles, luxury goods, aerated beverages, and high-end consumer appliances.
Illustrative Worked Example: Reverse GST Calculation (Extracting Base from MRP)
When an invoice or retail price includes GST (tax inclusive), use reverse calculation to extract the actual taxable base and the embedded tax components:
GST Tax Invoice Guide: Mandatory Fields, Rule 46 Compliance & HSN/SAC Rules
Comprehensive guide to creating compliant GST tax invoices under Rule 46 of CGST Rules 2017. Learn mandatory fields, CGST/SGST/IGST splits, and common invoicing mistakes.
Frequently Asked Questions about GST in India
Statutory guidance on GST compliance and invoicing rules.
How do you calculate Inclusive GST vs Exclusive GST?
When should I charge CGST and SGST versus IGST?
What are the current GST rate slabs in India?
What is GST input tax credit (ITC)?
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