The Goods and Services Tax (GST) is a unified destination-based indirect tax levied on the manufacture, sale, and consumption of goods and services.

How is GST added or removed from an amount?

To add GST: GST Amount = (Taxable Amount * Rate) / 100. To remove GST from inclusive cost: Taxable Amount = Inclusive Amount / (1 + Rate / 100).

Instant Client-Side Tool

Free GST Calculator Online

Quickly calculate GST, inclusive and exclusive prices, and tax breakdowns with our simple and powerful GST calculator.

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Calculations Performed

Last Used Rate

18%

Last Calculated Value

₹0.00

Saved History Records

GST Computation

Calculation Mode

Taxable Amount

₹

GST Tax Slabs (%)

Transaction Jurisdiction

Rounding

Discount Type

Discount Value

Tax Summary Breakdown

18% Rate

Final Amount (Payable)

₹1,180.00

Original Gross ₹1,000.00

Discount Applied - ₹0.00

Net Taxable Baseline ₹1,000.00

CGST (9%) ₹90.00

SGST (9%) ₹90.00

              Total GST Component
              + ₹180.00
            

Multi-Item Invoice Calculator

Itemize services and products, customize tax rates per line, and generate client-ready invoice sheets.

Product / Service	Qty	Unit Price	Disc %	GST Slab	Taxable	GST Total	Net Total	Action

Indian GST Rates Reference Table

Official schedules and common commodity groupings under current GST provisions.

GST Rate	Applicable Category Groupings	Classification / Examples	Tax Structure
0%	Exempt Necessities & Fresh Produce	Fresh milk, fruits, fresh vegetables, unbranded foodgrains, salt, legal services, public mass transit.	Nil Tax
0.25%	Rough Gemstones	Unworked diamonds, unworked precious or semi-precious stones.	0.125% CGST + 0.125% SGST
3%	Precious Metals & Bullion	Gold, silver, platinum coins, jewelry, worked pearls.	1.5% CGST + 1.5% SGST
5%	Household Essentials & Mass Consumption	Packaged tea, coffee, sugar, edible oils, domestic LPG, footwear < ₹1,000, life-saving medicines.	2.5% CGST + 2.5% SGST
12%	Processed Items & Standard Hardware	Butter, cheese, computers, mobile phones, business air tickets, sewing machines.	6% CGST + 6% SGST
18%	Standard Goods, SaaS & Telecom	IT software, SaaS platforms, capital goods, hair oil, toothpaste, restaurants in luxury hotels.	9% CGST + 9% SGST
28%	Luxury & Demerit Consumables	Automobiles, motorbikes, tobacco products, carbonated sugary beverages, high-end electronics.	14% CGST + 14% SGST

Disclaimer: Rates reflect standardized schedules. Specific HSN/SAC codes, notifications, and exemptions may modify tax incidence. Verify applicable provisions with the CBIC portal before filing returns.

Saved Calculations

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Frequently Asked Questions

Key rules, equations, and guidelines for Goods and Services Tax computation.

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

For intra-state transactions (buyer and seller within the same state), the GST is split equally between the Central Government (CGST) and State Government (SGST). For inter-state transactions (across different states), the Integrated GST (IGST) is levied in full by the Centre.

How do I remove GST from a tax-inclusive amount?

Use the reverse equation: Taxable Amount = Inclusive Price / (1 + Rate / 100). For example, if a bill is ₹1,180 with 18% GST: Taxable Value = 1,180 / 1.18 = ₹1,000, and the embedded GST is ₹180.

How are discounts accounted for in GST calculation?

Under GST statutory guidelines, trade discounts recorded on the invoice prior to or at the time of supply reduce the transaction value. GST is applied only to the net taxable baseline after deducting the discount.

Are any of my financial figures transmitted to a server?

No. All calculations, history logs, and invoices execute entirely on your device via client-side JavaScript. No financial data leaves your browser.