Calculate CGST, SGST, IGST and Cess in one tap. Built for businesses, freelancers, and anyone who hates math errors on tax day.
Our GST Calculator is a free, fast, and accurate online tool designed for Indian businesses, freelancers, accountants, and consumers. Whether you need to calculate GST on goods, compute CGST and SGST for intra-state sales, or work out IGST on inter-state transactions, this GST calculator online handles every scenario with mathematical precision — updated to reflect the latest GST 2.0 reforms effective from 22 September 2025.
Type any amount and the GST calculator gives you the result in real time — no "calculate" button, no waiting. Perfect for billing, invoicing, and quick checks.
Use our GST calculator India in two modes — add GST to a base price or extract the embedded tax from an inclusive amount. Both forward and reverse calculations are supported.
This GST tax calculator includes every slab — 0%, 0.25%, 3%, 5%, 12%, 18%, 28%, and the new 40% rate introduced under GST 2.0 for luxury and sin goods.
Our GST percentage calculator automatically splits the tax into Central GST and State GST for intra-state supplies, or applies Integrated GST for inter-state transactions.
Calculate GST with Compensation Cess for tobacco, aerated drinks, luxury cars, and other notified items where additional cess applies on top of regular GST.
This online GST calculator works perfectly on phones, tablets, and desktops. No signup, no ads, no hidden charges — completely free, forever.
Quickly calculate the right GST amount for invoices and pricing decisions without spreadsheets.
Add 18% GST to your service invoices and split it correctly as CGST + SGST or IGST based on the client location.
Compute IGST on inter-state shipments and verify GST charged by marketplaces like Amazon, Flipkart, Meesho.
Verify GST homework, practice problems, and CA/CS exam scenarios with accurate breakdowns.
Cross-check client invoices, validate vendor GST charges, and quickly reverse-engineer inclusive prices.
Find out how much GST you actually paid on that restaurant bill, mobile phone, or online order.
Real-time calculation as you type. No "Calculate" button.
Add GST to a base or extract embedded tax. Both modes covered.
0%, 5%, 18%, 40% — including GST 2.0 reform rates.
No login, no tracking, no data stored. Just math.
India's GST 2.0 reform reorganized slabs effective September 22, 2025. Here's the current structure.
The same workflow whether you're billing a client or extracting tax from an inclusive bill.
Type the base amount when adding GST, or the inclusive total when extracting it. The calculator handles both.
Choose from preset slabs (0% to 40%) or select supply type — Intra-state splits CGST+SGST, Inter-state shows IGST.
See the full breakdown — net, tax components, cess, and final total. Copy with one tap.
The two equations behind every GST calculation — quietly handled for you.
Multiply the net amount by the rate.
Reverse the formula to extract embedded tax.
How India's federal tax structure splits revenue between the Centre and States.
The Goods and Services Tax (GST) is India's unified indirect tax system, introduced on 1 July 2017 to replace multiple indirect taxes including VAT, excise duty, and service tax. It follows the principle of "One Nation, One Tax" — a single framework across all states.
GST is a destination-based tax, meaning revenue accrues to the state where goods or services are consumed, not produced. It is also a multi-stage value-added tax with credit for tax paid on inputs.
Aditi orders food worth ₹2,000 at a Delhi restaurant. GST rate is 5%.
Karnataka seller ships a phone worth ₹25,000 to Tamil Nadu buyer. GST is 18%.
Luxury sedan at ₹15,00,000 attracts 40% GST under GST 2.0.
Grocery item displays ₹525 inclusive of 5% GST.
Small businesses with turnover up to ₹1.5 crore can opt for flat rates: 1% (traders), 5% (restaurants), 6% (services). Quarterly returns, no ITC, no inter-state supplies.
Input Tax Credit is the heart of GST — it lets registered businesses offset GST paid on purchases against GST collected on sales.
A furniture maker buys timber for ₹10,000 + ₹1,800 GST. Sells a table for ₹15,000 + ₹2,700 GST.
Tax is paid only on the ₹5,000 value added — not the full ₹15,000.
Quick answers to the things people ask us most.
To add GST: GST = (Net × Rate) ÷ 100. For ₹10,000 at 18% = ₹1,800 GST, total ₹11,800.
To remove GST: Net = (Total × 100) ÷ (100 + Rate). For ₹1,180 inclusive at 18%, net is ₹1,000, embedded GST is ₹180.
Following GST 2.0 reforms effective 22 September 2025, India has four main slabs: 0%, 5%, 18%, and 40%. Special rates of 0.25% (rough diamonds) and 3% (gold) also apply. The earlier 12% and 28% slabs have been merged.
CGST + SGST apply together on intra-state transactions, splitting equally — 18% becomes 9% CGST + 9% SGST.
IGST is a single component for inter-state and imports. Total tax burden is identical, only destination differs.
Yes, completely free with no signup or hidden charges. Calculate as many times as you want.
Mandatory once turnover crosses ₹40 lakh for goods (₹20 lakh for services). Inter-state suppliers and e-commerce sellers must register from day one regardless of turnover.
An additional levy on luxury and sin goods (tobacco, aerated drinks) charged on top of regular GST. Under GST 2.0, many cess items moved to the new 40% slab.
ITC lets registered businesses offset GST paid on purchases against GST collected on sales. You only pay tax on the value you added, preventing tax-on-tax cascading.
The math is exact and reflects current GST 2.0 rates. For specific item classification, verify with a CA or the official CBIC portal.
Daily essentials: fresh fruits, vegetables, milk, eggs, unbranded grains, healthcare, education, books, life and health insurance, 33 life-saving drugs. Alcohol and some petroleum remain outside GST entirely.
Information verified from official Indian government and industry sources
Official portal for GST notifications, rate schedules, and circulars from the Ministry of Finance.
Official GSTN portal for registration, return filing, and HSN/SAC code lookups.
Official records of GST Council meetings, decisions, and rate revisions including the 56th meeting (GST 2.0).
Premier professional accounting body in India, issues guidance notes on GST interpretation and compliance.
For TDS/TCS rules under GST and integrated tax compliance.
Official press releases on GST Council decisions and tax policy announcements.