💰 GST Calculator India 2026

Add/Remove GST with category dropdown – CGST, SGST & IGST breakdown

Estimate your federal income tax based on simplified progressive tax brackets and deductions.

Note: This is a simplified example for demonstration purposes only. Real tax laws are complex and vary greatly.

Calculate total costs by adding or removing GST percentages.

📖 How GST is Calculated in India

GST (Goods and Services Tax) is an indirect, comprehensive, multi-stage, destination-based tax that is levied on every value addition. In India, GST has replaced completely or partially many indirect taxes like VAT, Service Tax, and Excise Duty.

There are two primary ways to calculate GST: Adding GST (Exclusive) — finding the final price when GST is added to a base price. Removing GST (Inclusive) — finding the original base price when the final price already includes GST.

🧾 CGST + SGST 🚚 IGST ➕ Add GST ➖ Remove GST

🔢 GST Formulas

Adding GST (Base Price is known) GST Amount = (Base Price × Rate) ÷ 100 Final Price = Base Price + GST Amount
Removing GST (Final Price is known) Base Price = Final Price ÷ (1 + [Rate ÷ 100]) GST Amount = Final Price − Base Price

🧮 Worked Examples

📌 Example 1: Adding 18% GST (Intra-State)

Base Price: ₹10,000

GST Amount: (10,000 × 18) ÷ 100 = ₹1,800

Split: CGST (9%) = ₹900 | SGST (9%) = ₹900

Final Price: ₹11,800

📌 Example 2: Removing 18% GST (Inter-State)

Final Price (MRP): ₹11,800

Base Price: 11,800 ÷ 1.18 = ₹10,000

GST Amount: 11,800 − 10,000 = ₹1,800 (100% IGST)

❓ Frequently Asked Questions

Intra-State (Within the same state): CGST (Central) and SGST (State) are applied equally. E.g., 18% GST splits into 9% CGST and 9% SGST.
Inter-State (Between two states): IGST (Integrated) is applied collectively. E.g., 18% IGST goes entirely to the central government, which later distributes it to the destination state.

The primary tax brackets are: 0% (milk, salt, fresh fruits), 5% (spices, tea, footwear < ₹1000), 12% (butter, mobile phones, processed food), 18% (IT services, banking, electronics), and 28% (luxury cars, pure aerated drinks, tobacco). Use our category dropdown to auto-fill the correct rate!

ITC allows businesses to reduce their tax liability by claiming credit for the GST paid on purchases. If a manufacturer pays ₹100 GST on raw materials and charges ₹150 GST on the final product, they only remit ₹50 (150 − 100) to the government. This prevents the "cascading effect" (tax on tax).