GST Calculator India
Add or remove GST instantly with CGST, SGST & IGST breakdown. Free, no login, nothing stored.
Same State splits tax into CGST + SGST. Different State charges it as IGST.
Works for invoices, purchase bills, and everyday GST calculations.
How the GST Calculator Online Formula Works in India
The Goods and Services Tax (GST) calculator computes exact tax components by splitting aggregate transaction values into CGST, SGST, or IGST components based on official Indian tax slabs, ensuring flawless invoicing and reverse-calculation accuracy for businesses and consumers.
Comprehensive Indian GST Slab Rates, Tax Breakdown & Real-World Scenarios (2026)
An advanced SEO-optimized master reference table mapping out high-intent Indian commercial goods, professional services, tax splits (CGST + SGST vs IGST), and reverse GST calculations designed to outrank standard competitor portals.
| Product / Service Scenario Profile | GST Slab | Net Base Price (₹) | GST Amount (₹) | Gross Total Invoice (₹) | Intra/Inter State Split |
|---|---|---|---|---|---|
| Essential Food Grains & Flour | 0% (Nil) | ₹1,000 | ₹0 | ₹1,000 | Exempted |
| Fresh Milk & Dairy Produce | 0% (Nil) | ₹500 | ₹0 | ₹500 | Exempted |
| Life-Saving Drugs & Medicines | 5% Slab | ₹2,000 | ₹100 | ₹2,100 | 2.5% CGST + 2.5% SGST |
| Economy Class Train Travel | 5% Slab | ₹1,500 | ₹75 | ₹1,575 | 5% IGST |
| Edible Cooking Oils & Tea | 5% Slab | ₹3,000 | ₹150 | ₹3,150 | 2.5% CGST + 2.5% SGST |
| Processed Butter & Ghee | 12% Slab | ₹2,500 | ₹300 | ₹2,800 | 6% CGST + 6% SGST |
| Mobile Phones & Smartphones | 12% Slab | ₹15,000 | ₹1,800 | ₹16,800 | 12% IGST |
| Non-AC Restaurant Dining Services | 12% Slab | ₹2,000 | ₹240 | ₹2,240 | 6% CGST + 6% SGST |
| IT Software & SaaS Subscriptions | 18% Slab | ₹10,000 | ₹1,800 | ₹11,800 | 18% IGST |
| Standard Electronics & Laptops | 18% Slab | ₹50,000 | ₹9,000 | ₹59,000 | 9% CGST + 9% SGST |
| Professional Legal & Consulting Services | 18% Slab | ₹25,000 | ₹4,500 | ₹29,500 | 9% CGST + 9% SGST |
| AC Hotel Accommodation Services | 18% Slab | ₹6,000 | ₹1,080 | ₹7,080 | 9% CGST + 9% SGST |
| Branded Garments & Apparel (>₹1,000) | 18% Slab | ₹2,000 | ₹360 | ₹2,360 | 18% IGST |
| Fitness Center & Gym Memberships | 18% Slab | ₹15,000 | ₹2,700 | ₹17,700 | 9% CGST + 9% SGST |
| Commercial Advertising Services | 18% Slab | ₹1,00,000 | ₹18,000 | ₹1,18,000 | 18% IGST |
| Luxury Passenger Vehicles (SUVs) | 28% Slab | ₹15,00,000 | ₹4,20,000 | ₹19,20,000 | 14% CGST + 14% SGST |
| Air Conditioner & Refrigerators | 28% Slab | ₹40,000 | ₹11,200 | ₹51,200 | 28% IGST |
| Aerated Soft Drinks & Beverages | 28% Slab | ₹1,000 | ₹280 | ₹1,280 | 14% CGST + 14% SGST |
| Luxury Five-Star Hotel Accommodation | 28% Slab | ₹12,000 | ₹3,360 | ₹15,360 | 14% CGST + 14% SGST |
| High-End Consumer Cements | 28% Slab | ₹5,000 | ₹1,400 | ₹6,400 | 28% IGST |
| Commercial Real Estate Services | 18% Slab | ₹2,00,000 | ₹36,000 | ₹2,36,000 | 9% CGST + 9% SGST |
Popular MSME & Small Business GST Calculation Searches in India
Frequently searched by micro-entrepreneurs, MSMEs, and GST-registered traders looking to extract base prices from inclusive bills or calculate exact reverse charges on standard commercial transactions.
| Small Business Search Query / Scenario | GST Rate | Gross Bill / Target (₹) | Extracted Base / Tax (₹) | Business Application / Purpose |
|---|---|---|---|---|
| Reverse GST on Office Stationery Bill | 18% | ₹11,800 Inclusive | ₹1,800 Tax (Base ₹10k) | Input Tax Credit (ITC Claim) |
| MSME Courier & Logistics Charges | 18% | ₹5,900 Inclusive | ₹900 Tax (Base ₹5k) | E-commerce Dispatch Accounting |
| Commercial Shop Rent Invoice Split | 18% | ₹25,000 Base Rent | ₹4,500 Tax (Total ₹29.5k) | Monthly Rental Ledger Entry |
| Wholesale Textile Fabric Supply | 5% | ₹50,000 Base | ₹2,500 Tax (Total ₹52.5k) | B2B Textile Billing |
| Small Business Cloud Hosting & Server | 18% | ₹3,540 Inclusive | ₹540 Tax (Base ₹3k) | IT & Tech Expense Management |
| Digital Marketing Agency Retainer | 18% | ₹20,000 Base | ₹3,600 Tax (Total ₹23.6k) | Promotional Expense Filing |
| CA & Tax Consultant Professional Fee | 18% | ₹10,000 Base | ₹1,800 Tax (Total ₹11.8k) | Statutory Audit Outflow |
| Restaurant Catering Services (Outdoor) | 18% | ₹1,00,000 Base | ₹18,000 Tax (Total ₹1.18L) | Corporate Event Billing |
What Is GST?
GST (Goods and Services Tax) is a single indirect tax levied on the supply of goods and services across India, replacing older taxes like VAT, service tax, and excise duty since it was introduced on 1 July 2017. It is charged at every stage of the supply chain but is ultimately paid by the end consumer, with businesses claiming input tax credit along the way.
Free, No Login, No Data Stored
This calculator runs entirely in your browser. There is no sign-up, no account, and nothing you enter is saved, tracked, or sent anywhere. It's free to use as many times as you need.
How to Use This GST Calculator
- Choose Add GST if you have a price before tax and want to find the final billed amount, or Remove GST if you have a final invoice amount and want to find the original price before tax.
- Enter the amount in rupees.
- Select the applicable GST rate - 5%, 12%, 18%, or 28% - or enter a custom rate if yours isn't listed.
- Choose Same State if the buyer and seller are in the same state (this splits GST into CGST + SGST), or Different State if it's an interstate transaction (charged fully as IGST).
- Your original amount, tax breakdown, and total amount update instantly as you type.
GST Calculation Formulas
GST Amount = Original Amount x GST Rate / 100Total Amount = Original Amount + GST Amount
Original Amount = Total Amount / (1 + GST Rate / 100)GST Amount = Total Amount - Original Amount
CGST = SGST = GST Amount / 2. For interstate sales, the full amount is charged as Integrated GST: IGST = GST Amount.
GST Rate Slabs in India
| Rate | Typical Goods/Services |
|---|---|
| 0% | Fresh fruits, vegetables, milk, curd, unbranded food grains, educational services |
| 5% | Packaged food items, coal, small restaurants, footwear under INR 1,000 |
| 12% | Processed food, business class air tickets, computers, mobile phones |
| 18% | Most goods and services - electronics, financial services, telecom, restaurants (AC) |
| 28% | Luxury and sin goods - cars, tobacco, aerated drinks, high-end consumer durables |
Rates are indicative and subject to periodic revision by the GST Council. Always confirm the current applicable rate for your specific goods or services on the official GST portal.
Who Is This Calculator For?
- Small business owners and shopkeepers generating GST-compliant invoices.
- Freelancers and consultants calculating GST on service invoices.
- Accounting and commerce students learning how CGST, SGST, and IGST are applied.
- Anyone shopping or billing who wants to quickly check how much tax is included in a price.
CGST vs SGST vs IGST
| Tax | Full Form | Applies When | Collected By |
|---|---|---|---|
| CGST | Central GST | Sale within the same state | Central Government |
| SGST | State GST | Sale within the same state | State Government |
| IGST | Integrated GST | Sale between two different states | Central Government (shared with destination state) |
Frequently Asked Questions
What is the difference between Add GST and Remove GST?
Add GST calculates the final price when you start with a price that excludes tax. Remove GST works backward - you enter the final, tax-inclusive amount and it tells you the original price and how much tax was included.
When do I use CGST + SGST instead of IGST?
Use CGST + SGST when the buyer and seller are located in the same state - the tax is split equally between the central and state governments. Use IGST when the sale crosses state lines; the full GST amount is charged as a single integrated tax.
Is GST calculated on MRP or before tax?
MRP (Maximum Retail Price) is generally inclusive of GST. If you have the MRP and want to know the base price and tax amount, use Remove GST mode.
What GST rate should I select for my product?
GST rates depend on the HSN/SAC classification of your goods or service. Check your product's HSN code on the official GST portal (gst.gov.in) to confirm the exact applicable rate, since it can change with government notifications.
Can I use this for GST-inclusive invoice calculations?
Yes. Enter your total invoice amount, select Remove GST, choose the correct rate, and it will show the base amount along with the CGST/SGST or IGST that was charged.
Is this GST calculator accurate for filing returns?
This tool is meant for quick estimates and everyday calculations. For official GST return filing, always cross-check figures with your accounting software or a qualified tax professional, since actual filings may involve input tax credit adjustments this simple calculator does not account for.
Is this calculator free to use?
Yes, completely free, with no login and no data stored, and works on both mobile and desktop.
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