GST Calculator
Calculate GST amount with CGST, SGST and IGST breakdown
GST Details
Enter amount and click Calculate GST
| Base Amount | — |
| CGST (intra-state) | — |
| SGST (intra-state) | — |
| IGST (inter-state) | — |
| Total Amount | — |
How to Use
- Enter the Amount — either the base price (exclusive) or the final price (inclusive of GST).
- Select the GST Rate — 5%, 12%, 18%, or 28%.
- Choose whether your amount is GST Exclusive (add GST) or GST Inclusive (extract GST).
- Click Calculate — see CGST, SGST, IGST, and final amounts.
What is GST?
Goods and Services Tax (GST) is India's unified indirect tax, introduced in July 2017, replacing VAT, Service Tax, Excise Duty, and 13+ other levies. It follows a dual structure: CGST (Central) + SGST (State) for intra-state transactions, and IGST (Integrated) for inter-state transactions.
GST Rate Slabs
| Rate | Common Items |
|---|---|
| 0% | Fresh food, milk, eggs, medical services, educational services |
| 5% | Packaged food, edible oils, economy hotel rooms (<₹1000/night) |
| 12% | Processed food, mobile phones, business class air tickets |
| 18% | IT services, restaurants, most consumer goods, financial services |
| 28% | Luxury cars, tobacco, aerated drinks, casinos |
GST for Freelancers & Small Businesses
If your annual turnover exceeds ₹20 lakh (₹10 lakh for NE states), GST registration is mandatory. Below this threshold, you can opt for the Composition Scheme (flat 1–5% on turnover, simplified compliance). Use this calculator to correctly bill your clients and file returns.
Frequently Asked Questions
GST has five rate slabs: 0% (essential goods and services like fresh food, healthcare, education), 5% (packaged food, medicines), 12% (processed food, mobile phones), 18% (most services, electronics, restaurants), and 28% (luxury goods, tobacco, aerated drinks). Some items like petroleum and alcohol are outside GST.
For transactions within the same state: CGST (Central GST) + SGST (State GST) apply, each at half the total GST rate. For transactions between states: IGST (Integrated GST) applies at the full rate. The split goes to the Central and State governments respectively.
Small businesses with annual turnover below ₹1.5 crore (₹75 lakh for some states) can opt for the Composition Scheme — pay 1–5% of turnover as flat tax instead of the standard GST. Simplifies compliance but disallows input tax credit and interstate sales.
GST registration is compulsory when: annual aggregate turnover exceeds ₹20 lakh (₹10 lakh for NE states and special category states); you supply goods/services across state borders; you sell via e-commerce platforms; or you are required to pay tax under reverse charge mechanism.
ITC allows businesses to deduct the GST they paid on purchases (inputs) from the GST they collect on sales (outputs). Only the net difference is paid to the government. This eliminates the cascading tax-on-tax effect that existed under the old VAT system.