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Free GST Calculator
India 2026

Add or remove GST from any amount in one click. Supports all GST slabs — 5%, 12%, 18%, 28%. See CGST, SGST, IGST breakdown instantly.

GST Details

Total Amount (with GST)
11,800
Base Amount
₹10,000
GST Amount
₹1,800
CGST (9%)
₹900
SGST (9%)
₹900
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What is GST? India's Goods and Services Tax Explained (2026)

GST (Goods and Services Tax) is India's unified indirect tax that replaced over a dozen separate state and central taxes including VAT, Service Tax, Excise Duty, and more. Implemented on July 1, 2017, GST follows the principle of "one nation, one tax."

GST is a destination-based consumption tax — it is charged at the point of consumption, not production. This means the state where goods/services are consumed gets the tax revenue, not the state where they are manufactured.

GST Slab Rates in India 2026 — Complete List

GST RateCategoryExamples
0% (Exempt)Essential itemsFresh vegetables, milk, eggs, healthcare, education
5%Basic necessitiesPackaged food, newspapers, economy hotel stays, railway tickets
12%Standard goodsButter, cheese, frozen meat, business class flights, work contracts
18%Most services & goodsRestaurants, electronics, IT services, financial services, hair oil
28%Luxury & sin goodsCars, motorcycles, tobacco, aerated drinks, casinos

CGST vs SGST vs IGST — What's the Difference?

GST in India is structured as a dual tax — both central and state governments collect it simultaneously:

Example: 18% GST on a ₹10,000 invoice
Intra-State: CGST ₹900 + SGST ₹900 = ₹1,800 total
Inter-State: IGST ₹1,800 total

Input Tax Credit (ITC) — The Key Benefit of GST

One of GST's most powerful features for businesses is Input Tax Credit. When a GST-registered business pays GST on its purchases (inputs), it can claim that amount as credit against the GST it collects from customers (outputs). This eliminates the "tax on tax" problem that existed under the old VAT system.

Example: A retailer buys goods for ₹1,00,000 + GST ₹18,000 = ₹1,18,000 total. Sells for ₹1,50,000 + GST ₹27,000 = ₹1,77,000. The retailer pays only ₹27,000 – ₹18,000 = ₹9,000 net GST to the government.

GST Registration — When is it Mandatory?

Business TypeMandatory Registration Threshold
Goods supplier (most states)Annual turnover above ₹40 lakh
Service provider (most states)Annual turnover above ₹20 lakh
Special category states (NE + hilly)Annual turnover above ₹10 lakh
E-commerce sellersMandatory regardless of turnover
Inter-state supplyMandatory regardless of turnover

GST Return Filing — Types and Due Dates

GST-registered businesses must file regular returns. The main return types are: GSTR-1 (outward supplies, monthly or quarterly), GSTR-3B (monthly summary return with tax payment), GSTR-9 (annual return), and GSTR-2B (auto-populated ITC statement).

Non-filing or late filing attracts a late fee of ₹50/day (₹20/day for nil returns) plus interest at 18% p.a. on unpaid tax.

💰 Also calculate: Use our Income Tax Calculator to plan your overall tax liability, or our Salary Calculator to see in-hand pay after all deductions.

Frequently Asked Questions

How to add 18% GST to an amount?
Multiply the base amount by 1.18. For ₹10,000: ₹10,000 × 1.18 = ₹11,800. The GST amount is ₹1,800 (CGST ₹900 + SGST ₹900 for intra-state transactions).
How to remove GST from a GST-inclusive price?
Divide the inclusive price by (1 + GST rate/100). For example, if the price with 18% GST is ₹11,800: ₹11,800 ÷ 1.18 = ₹10,000 (base). GST amount = ₹11,800 – ₹10,000 = ₹1,800.
Is GST applicable on exports?
No. Exports are zero-rated under GST — you don't charge GST to foreign customers. Moreover, exporters can claim refund of the GST paid on inputs used in making exported goods/services.
What is the GST on restaurant food?
For restaurants not in hotels with room tariff above ₹7,500: 5% GST (no ITC). For restaurants in 5-star hotels or with room tariff above ₹7,500: 18% GST (with ITC). Non-AC restaurants: 5% GST.
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CalcBharat.com Finance Team
GST & Taxation Experts
GST rates and regulations verified as of April 2026. GST rules change periodically — always verify with the official GST portal (gst.gov.in) or a CA for your specific situation. Last updated: April 2026.