Advanced Indian GST Calculator
Complete GST calculation tool with invoice generation
GST Rate Guide
0% - Exempt
Fresh vegetables, milk, eggs, bread
5% - Essential
Sugar, tea, coffee, edible oils
12% - Standard
Processed food, computers
18% - Most Common
Most goods and services
28% - Luxury
Cars, motorcycles, luxury items
3% - Precious
Gold, silver, precious stones
Your privacy is protected! No data is transmitted or stored.
How To Use: Advanced Indian GST Calculator
This is a comprehensive, all-in-one tool for calculating Goods and Services Tax (GST) in India. It can add or remove GST, handle multiple tax scenarios, and even generate downloadable invoices.
Key Features:
Three Calculation Modes: Add GST, Remove GST, and Reverse Calculation.
All GST Slabs: Pre-defined rates (0%, 0.25%, 3%, 5%, 12%, 18%, 28%) plus a custom rate option.
State-Based Tax Split: Automatically calculates CGST+SGST for Intra-State or IGST for Inter-State supplies.
Advanced Invoice Fields: Item description, HSN/SAC code, quantity, discount, and additional charges.
Multi-Currency Support: Calculate in INR, USD, EUR, or GBP (for display purposes).
Export Results: Download a detailed invoice as a PDF or a simple TXT file.
100% Private: All calculations happen on your device; no data is sent to any server.
Step-by-Step Guide
Step 1: Choose Your Calculation Type
Add GST (Exclusive): Use this when you have a base price and want to find the final price after adding GST. Example: Calculating the selling price of a product.
Remove GST (Inclusive): Use this when the price you have already includes GST, and you want to find the original base price and the GST amount separately. Example: Analyzing a bill to see the tax breakdown.
Reverse Calculation: This functions similarly to “Remove GST,” helping you find the base amount from a GST-inclusive price.
Step 2: Select the GST Rate
Choose the appropriate GST rate from the dropdown menu (e.g., 18% for standard goods).
If your specific rate isn’t listed, select “Custom Rate”. A new input field will appear where you can enter any percentage value.
Step 3: Enter the Basic Amount & Quantity
In the “Amount (₹)” field, enter the price of a single item.
In the “Quantity” field, enter the number of units. The calculator will automatically multiply the amount by the quantity.
Step 4: Define the Transaction Type (State)
Intra-State (CGST + SGST): Select this if the sale is within the same state. The total GST will be split equally into CGST and SGST.
Inter-State (IGST): Select this if the sale is between two different states or Union Territories. A single IGST will be applied.
Step 5: (Optional) Add Invoice Details
Item Description: Enter the name of the product or service.
HSN/SAC Code: Enter the relevant Harmonized System of Nomenclature (HSN) code for goods or Services Accounting Code (SAC) for services.
Discount (%): Enter any discount percentage to be applied to the total amount before GST is calculated.
Additional Charges (₹): Enter any extra fees like shipping, handling, or insurance. These are added to the total after GST is calculated.
Step 6: (Optional) Change Currency
Use the “Currency” dropdown to select your preferred currency (INR, USD, EUR, GBP). This only changes the symbol for display and download purposes; it does not perform currency conversion.
Step 7: Calculate!
Click the “Calculate GST” button.
The “Calculation Results” section will appear instantly below, showing a complete breakdown:
Original Amount and Amount after Discount.
Detailed CGST, SGST, or IGST amounts.
Total GST.
Additional Charges.
Final Amount (the total to be paid).
After Calculation: Using the Action Buttons
Once you have your results, you have three options:
Clear All: Resets the entire form to its default values, allowing you to start a new calculation.
Download PDF: Generates and downloads a clean, well-formatted invoice in PDF format, perfect for professional use or record-keeping.
Download TXT: Generates and downloads a simple text file with the calculation breakdown, useful for quick notes or easy sharing.
Pro-Tips:
Quick Recalculation: After seeing the results, you can change any input value (like the amount or discount) and just hit “Calculate GST” again to update the results instantly.
Privacy First: Feel free to use this for sensitive financial data. The calculator runs entirely in your browser, ensuring complete confidentiality.
Refer to the Guide: Use the “GST Rate Guide” at the bottom of the page for a quick reminder of which items fall under which tax slab.
This tool is designed to handle everything from simple, quick calculations to complex, professional invoicing. Happy calculating,