GST Invoice Calculator
A complete multi-item GST invoice calculator. Add multiple products or services, apply custom quantity, rate, discount, and GST slabs per line, and generate print-ready invoice totals.
| Item Description | Qty | Unit Price (₹) | Disc (%) | GST (%) | Total (₹) | |
|---|---|---|---|---|---|---|
| ₹29,500.00 |
How to Use GST Invoice Calculator
2. Click '+ Add Line Item' to add as many rows as needed.
3. The summary box automatically updates Subtotal, Total Discounts, Taxable Value, CGST, SGST, Total Tax, and Grand Total.
4. Click 'Print Invoice' to print or save as PDF using your browser's native print function.
How It Works: GST Invoice Calculator
Formula & Calculation Methodology
Line Gross = Quantity × Unit Price
Line Discount = (Line Gross × Discount %) / 100
Line Taxable = Line Gross - Line Discount
Line GST = (Line Taxable × GST Rate) / 100
Grand Total = Sum of all Line Taxables + Sum of all Line GSTs
Notice: Designed to provide accurate results based on the standard formulas described above.
Practical Real-World Examples
• Item 1: 2 Consulting Hours @ ₹5,000 with 18% GST = ₹11,800 (Base ₹10,000 + GST ₹1,800)
• Item 2: 1 Software License @ ₹15,000 with 10% discount and 18% GST = ₹15,930 (Base ₹13,500 + GST ₹2,430)
• Combined Taxable: ₹23,500 | CGST: ₹2,115 | SGST: ₹2,115 | Grand Total: ₹27,730
Frequently Asked Questions
Find verified answers regarding GST Invoice Calculator, calculations, formulas, data privacy, and supported features.
Yes. GST law permits mixed invoices containing items with distinct tax slabs (such as 5%, 12%, and 18%). Each item must clearly display its applicable rate and tax.
Click the "Print Invoice" button and select "Save as PDF" in your browser print destination dropdown. Zero external plugins required.
A compliant GST tax invoice must include the supplier name, address, GSTIN, consecutive invoice serial number, date of issue, recipient details, HSN/SAC code, description, taxable value, and tax rates/amounts.
The GST Invoice Calculator is a free, fast online utility designed to Create and calculate multi-item commercial GST invoices with line-item discounts, tax slabs, and print ready totals.. To use it, enter your inputs or upload your file into the tool interface above, adjust any custom options, and get your calculated or converted result immediately.
No. All calculations run strictly in your web browser. None of your entered values, confidential numbers, or personal text are stored, logged on our servers, or shared with third parties.
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