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GST Calculator

GST

Calculate inclusive and exclusive GST amounts instantly. Find the exact CGST and SGST splits for your invoices.

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₹
₹ 100 ₹ 5L
Total Billed Amount info
₹ 0
Net Base Amount
₹ 0
Total GST Applied
₹ 0

CGST (2.5%)

₹ 0

SGST (2.5%)

₹ 0
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Understanding GST Calculations

Goods and Services Tax (GST) is an indirect tax used in India on the supply of goods and services. It is a comprehensive, multi-stage, destination-based tax.

Adding GST vs Removing GST

Exclusive (Adding GST): The price you see is the base price. GST is added on top of it. This is commonly used in wholesale (B2B) transactions.

Total Amount = Base Price + (Base Price × GST%)

Inclusive (Removing GST): The price you see already includes the tax. You need to calculate backward to find the true base price. This is common in retail (B2C) pricing (e.g., MRP).

Base Price = Total Amount / [1 + (GST% / 100)]

How the GST Calculator works

Goods and Services Tax (GST) is calculated by applying the percentage tax rate to the net transaction value.

GST Amount = Net Value × (GST Slab Rate / 100)
GST Amount Goods and Services Tax amount
Net Value Net base transaction price of the goods or services
GST Slab Rate Standard tax slab rate percentage (5%, 12%, 18%, or 28%)

Frequently Asked Questions

What is the difference between CGST, SGST, and IGST? expand_more

CGST and SGST are applied on intra-state supplies (within the same state) and shared equally between central and state governments. IGST is applied on inter-state transactions and collected centrally.

How is reverse GST (inclusive tax) calculated? expand_more

Inclusive GST is calculated as: Base Amount = Gross Total × [100 / (100 + GST Rate)]. The remaining amount represents the inclusive GST.

Do I need a GSTIN registration to use this tool? expand_more

No, our calculators are 100% free and open for public educational planning, requiring no registration, identification, or credit footprints.

Examples & Benchmarks

Scenario Value 1 Value 2 Total
₹10,000 base amount + 18% GST CGST: ₹900 SGST: ₹900 Gross Total: ₹11,800
₹50,000 base amount + 18% GST CGST: ₹4,500 SGST: ₹4,500 Gross Total: ₹59,000
₹1,000 base amount + 12% GST CGST: ₹60 SGST: ₹60 Gross Total: ₹1,120
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