⚡ 100% Free GST Compliant Invoice Generator

GST Invoice Software — Create Professional GST Invoices in 45 Seconds

Generate 100% government-compliant tax invoices, auto-calculate CGST/SGST/IGST, embed dynamic UPI payment QR codes, and share invoices instantly via WhatsApp.

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Why Indian Businesses Choose OwnStore for GST Invoicing

Everything you need to create, track, and manage GST invoices for retail, wholesale, and service businesses.

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Automated Tax Calculation

Instant CGST + SGST or IGST calculation based on customer state and HSN/SAC code. Zero math errors.

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1-Click WhatsApp Invoicing

Send professional PDF bills with an embedded UPI payment link directly to your customer's WhatsApp.

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A4, A5 & POS Thermal Printing

Print on standard office printers or 2-inch/3-inch thermal POS receipt printers seamlessly via Bluetooth or USB.

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Dynamic UPI Payment QR Code

Every invoice includes a dynamic UPI QR code. Customers scan with GPay/PhonePe to pay directly to your bank account.

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1-Click GSTR-1 & GSTR-3B Reports

Export JSON and Excel return reports pre-formatted for direct upload to the official GST portal.

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Real-Time Stock Auto-Deduction

Inventory stock levels update automatically the second an invoice is created or canceled. Avoid stock-outs.

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Multi-Store & Multi-GSTIN Support

Manage multiple branch shops, warehouses, or distinct company GSTINs from a single master dashboard.

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100% Free Tier (100 Bills/Month)

Permanent free tier with watermark-free invoices, cloud backup, and mobile app access. No credit card required.

OwnStore vs Competitors: Comparison Table

See how OwnStore compares against Vyapar, Tally Prime, Busy, and Marg ERP for small business invoicing.

Feature OwnStore Vyapar Tally Prime Busy Accounting Marg ERP
Starting Price Free (100 inv/mo) • ₹399/mo Pro ₹2,399/yr (Desktop only) ₹18,000 + 18% GST ₹7,200 + GST ₹8,991/yr
Permanent Free Tier ✔ Yes (Watermark-Free) ✘ 7-day trial only ✘ Educational only ✘ 30-day trial ✘ Demo only
Real-Time Cloud Sync ✔ Mobile & Desktop Live ✘ Manual Google Drive sync ✘ Local file server ✘ On-premise SQL ✘ Desktop database
WhatsApp PDF Invoicing ✔ 1-Click Native ✔ Supported ✘ Add-on module ✘ Third-party plugin ✘ Paid add-on
Dynamic UPI QR Code ✔ Embedded on Invoice ✔ Supported ✘ Requires TDL script ✘ Custom template ✔ Basic
Free E-Commerce Storefront ✔ Included (my.ownstore.app) ✘ Not included ✘ No web store ✘ No web store ✘ No web store

Frequently Asked Questions (FAQs)

Common questions about creating GST invoices with OwnStore.

What is the difference between a GST bill and a GST invoice?

A GST Tax Invoice is a formal legal document issued by a registered GST taxpayer for taxable supply of goods or services, containing the seller and buyer GSTINs, HSN codes, and distinct CGST/SGST/IGST tax breakdowns (enabling the buyer to claim Input Tax Credit). A Bill of Supply is issued by composition dealers or for exempt supplies where no tax is charged.

Can I generate GST invoices for free on OwnStore?

Yes. OwnStore provides a permanent 100% free plan allowing up to 100 GST invoices every month with zero watermarks, full inventory tracking, and WhatsApp sharing. No credit card is required.

How does OwnStore calculate CGST, SGST, and IGST automatically?

When you select a customer, OwnStore checks their state code against your registered business state. If intra-state (same state), it automatically splits the GST into CGST + SGST (e.g., 9% + 9% for an 18% item). If inter-state (different state), it applies the full rate as IGST (18%).

Can I add dynamic UPI payment QR codes to my GST invoices?

Yes. OwnStore automatically generates a dynamic UPI payment QR code directly on every digital and printed invoice. Customers can scan the QR code using Google Pay, PhonePe, Paytm, or BHIM to pay the exact invoice amount instantly into your bank account.

What invoice formats and print sizes does OwnStore support?

OwnStore supports Standard A4 (Full Page), A5 (Half Page), and POS Thermal Rolls (2-inch 58mm and 3-inch 80mm). You can customize themes, company logos, signature images, bank details, and custom terms & conditions.

Can I share GST invoices directly via WhatsApp and Email?

Yes. With a single click, you can send a beautifully formatted PDF GST invoice with an interactive payment link directly to your customer's WhatsApp number and email inbox.

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