GST Calculator
Why Use Our GST Calculator?
Quickly compute GST for any product or service with accurate Indian tax rates. Perfect for businesses, accountants, and freelancers.
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How GST Calculation Works
GST is calculated as a percentage of the base amount. Select the applicable slab (5%, 12%, 18%, or 28%) and the tool instantly shows CGST + SGST or IGST breakdown.
Formula: GST = (Amount × Rate) / 100 | Total = Amount + GST
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Frequently Asked Questions (FAQ)
What is GST?
GST (Goods and Services Tax) is an indirect tax levied on supply of goods and services in India. It replaced many indirect taxes like VAT, service tax, etc.
How many GST slabs are there?
There are four main GST slabs: 5%, 12%, 18%, and 28%. Some essential items fall under 0% or 3%.
Is this calculator free to use?
Yes, completely free. No registration required. Use it unlimited times for accurate GST calculations.
What is the difference between CGST and SGST?
CGST is collected by Central Govt, SGST by State Govt on intra-state sales. For inter-state, IGST is applicable.
Can I calculate reverse GST?
Our tool currently calculates GST on base amount. For reverse calculation (extracting base from total), you can use formula: Base = Total / (1 + Rate/100).
What is GSTIN?
GSTIN (Goods and Services Tax Identification Number) is a 15-digit unique number assigned to every GST registered taxpayer in India.
Who needs to register for GST?
Businesses with annual turnover above ₹40 lakhs (₹20 lakhs for special category states) must register for GST. E-commerce sellers must register regardless of turnover.
What is Input Tax Credit (ITC)?
ITC allows businesses to claim credit for GST paid on purchases. You can reduce your GST liability by the amount of GST already paid on inputs.
What are GSTR-1 and GSTR-3B?
GSTR-1 is a monthly/quarterly return of outward supplies (sales). GSTR-3B is a summary return with total GST liability and ITC claimed, filed monthly.
What is the penalty for late GST filing?
Late fee is ₹50 per day (₹25 CGST + ₹25 SGST) for regular returns. For nil returns, it's ₹20 per day. Maximum late fee is capped at ₹5,000.
Can I use this calculator for business?
Absolutely! Our GST calculator is designed for businesses, accountants, freelancers, and anyone who needs quick and accurate GST calculations.
How is IGST different from CGST+SGST?
IGST (Integrated GST) is charged on inter-state supplies and imports. CGST+SGST is charged on intra-state supplies. The total tax rate remains the same.