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GST Calculator & Invoice

Generating Ultra-HD Slip...

ORIGINAL DIGITAL SOLUTIONS

Shop No. 12, Main Market, New Delhi - 110001

GSTIN: 07AAAAA0000A1Z5

TAX ESTIMATE / INVOICE
Invoice No: INV-2026-084
Date: 21/08/2026
Tax Type: Intra-State (CGST+SGST)
Billed By (Supplier)
ORIGINAL DIGITAL SOLUTIONS
New Delhi, Delhi, India
Billed To (Customer)
M/s Sharma Enterprises
Sector 18, Noida, Uttar Pradesh
GSTIN: 07BBBBB1111B1Z9
S.N. Description of Goods / Services HSN/SAC Net Value (₹) GST Rate Total Tax (₹)
1 Computer Hardware & IT Services
(GST Exclusive calculation)
 8471 / 9983 ₹ 10,000.00 18% ₹ 1,800.00
Amount Chargeable (in words):
INR Eleven Thousand Eight Hundred Only.
* This is a computer generated estimate invoice slip for tax and billing purposes.
Taxable / Base Amount ₹ 10,000.00
Central Tax (CGST 9%) ₹ 900.00
State Tax (SGST 9%) ₹ 900.00
Total Tax Amount (GST) ₹ 1,800.00
Total Gross Amount ₹ 11,800.00
Customer Signature
Authorized Signatory

Final GST Slip Preview

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Free GST Calculator Online & Tax Invoice Generator

Looking for an accurate, fast, and easy way to calculate Goods and Services Tax (GST) in India? The OriginalPDF GST Calculator allows you to calculate both GST Inclusive and GST Exclusive amounts in seconds. Whether you are a business owner, retailer, freelancer, or customer, you can calculate the exact CGST, SGST, and IGST breakdowns and generate a professional, print-ready A4 Tax Estimate slip completely free.

100% Client-Side Privacy: Your business figures and client invoices are strictly confidential. All calculations and PDF document rendering run entirely inside your web browser. No financial records are ever sent to our servers.

Complete Guide: Key Features & GST Calculations

Frequently Asked Questions

1. What is the difference between GST Inclusive and GST Exclusive?

GST Exclusive means GST is added on top of the net base price. GST Inclusive means the bill price already includes GST tax.

2. How is GST divided between CGST and SGST?

For intra-state transactions (within the same state), the GST rate is split equally (50% Central GST and 50% State GST). For inter-state transactions, full 100% IGST is charged.

3. What is the formula to calculate GST Exclusive amount?

GST Amount = (Base Amount * GST %) / 100. Total Gross Amount = Base Amount + GST Amount.

4. What is the formula to remove GST (GST Inclusive)?

Base Amount = Total Amount / (1 + (GST % / 100)). GST Amount = Total Amount - Base Amount.

5. Can I enter a custom GST percentage?

Yes, you can click the 'Custom' button in the sidebar and enter any tax rate such as 0.25%, 3%, or 40%.

6. Can I add business and customer details on the invoice slip?

Yes! Click the 'Edit Details' button to customize your Business Name, GSTIN, Buyer Name, Address, and Invoice Number.

7. Is my financial calculation data stored on your server?

No. All math and PDF rendering happens locally in your web browser. No billing data or amounts are saved or transmitted.

8. What formats can I download the GST invoice in?

You can export the printable A4 slip as an Ultra-HD PDF document, JPG image, or PNG image.

9. Is this GST calculator free to use?

Yes, this tool is 100% free with unlimited calculations, invoice slip downloads, and zero watermarks.

10. Does this tool work on mobile phones?

Yes, the interface is fully responsive. You can calculate GST and generate PDF receipts seamlessly from any smartphone.