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🧾 GST Calculator

GST Calculator India — Add or remove GST instantly. Supports all slabs: 0%, 3%, 5%, 12%, 18%, 28%. Shows CGST and SGST breakup. Free, no login, works offline.

🔒 100% Free · No Login · Works in Browser

About GST Calculator

Goods and Services Tax (GST) was introduced in India on July 1, 2017, replacing multiple indirect taxes like VAT, service tax, and excise duty. Every business owner, freelancer, accountant, and consumer in India needs to calculate GST regularly — and our free GST calculator makes it instant.

Whether you need to add GST to a base price to get the final customer price, or reverse calculate to find the pre-GST amount from a GST-inclusive price, this tool handles both. It also shows the CGST and SGST breakdown which is required for GST invoices.

GST Slabs in India (2024-25)

GST in India has five main rate slabs. 0% on essential items like food grains, fresh vegetables, and health services. 5% on everyday items like packaged food, transport, and small restaurants. 12% on processed food, computers, and business class travel. 18% on most services, electronics, and manufactured goods. 28% on luxury items, automobiles, tobacco, and aerated drinks.

📖 How to Use
1
Enter Amount
Type the original amount in rupees
2
Select GST Rate
Choose the applicable GST slab — 5%, 12%, 18%, or 28%
3
View Results
See the tax breakdown with CGST, SGST and total instantly
❓ Frequently Asked Questions
What is the GST rate on software services in India?+
Software services and IT services attract 18% GST in India. This applies to web development, app development, consulting, and all other IT and software services.
How is GST calculated on an invoice?+
For intra-state sales, split GST equally into CGST and SGST. For 18% GST — 9% CGST plus 9% SGST. For inter-state sales, charge full IGST of 18% without splitting.
What is the GST composition scheme?+
Small businesses with turnover up to Rs 1.5 crore can opt for composition scheme and pay a flat 1% to 6% tax instead of regular GST rates. They cannot claim input tax credit.
Is GST applicable on exports?+
No. Exports are zero-rated under GST meaning no GST is charged. Exporters can claim refund of input tax credit paid on inputs used for exports.
What is the GST registration threshold?+
Businesses with annual turnover above Rs 40 lakh (Rs 20 lakh for services) must register for GST. For special category states the threshold is Rs 20 lakh.