GST Invoice Software & E-Way Billing
Create professional GST tax invoices, bills of supply, and export invoices in seconds. Auto-calculate CGST, SGST, IGST, generate E-way bills, and export GSTR returns.
Core Capabilities & Advanced Features
Designed with high-performance tools to scale your business operations smoothly.
📑 100% Karnataka GST Compliant Invoices
Create professional invoices featuring accurate HSN/SAC codes, state tax splits, customer GSTIN verification, and digital signatures.
- Auto split of CGST, SGST, and IGST
- Reverse Charge Mechanism (RCM) billing
- Composite scheme Bill of Supply support
🚚 Integrated E-Way Bill Generation
Generate automated E-Way bills directly from sales invoices for shipments over ₹50,000. Update vehicle numbers and transporter IDs in 1 click.
- Bulk E-Way bill generation
- Auto validation of PIN codes & distances
- Avoid transit penalties and checkpoints
📊 1-Click GSTR Filing Reports
Export ready-to-upload JSON and Excel summaries for GSTR-1 (B2B, B2CL, B2CS, CDNR, HSN summary) and GSTR-3B tax calculations.
- Zero discrepancy with GST portal
- Automated Input Tax Credit (ITC) tracking
- Share report directly with your Chartered Accountant
💬 Instant WhatsApp & Email Invoicing
Deliver PDF invoices directly to customer WhatsApp numbers and emails with embedded UPI dynamic payment links.
- Eco-friendly paperless billing
- Customers can download invoices anytime
- Faster payment recovery with UPI
🎨 Customizable Professional Invoice Templates
Choose from modern, classic, and compact invoice templates. Add company logo, bank account details, QR code, and custom terms.
- A4, A5, and Thermal 80mm layouts
- Custom footer declarations and signatures
- Bilingual invoice text options
🔍 Live GSTIN Verification & Auto-Fill
Type a customer or vendor’s 15-digit GSTIN number, and Onezo instantly pulls their registered trade name and address from the GST portal.
- Eliminates typing mistakes
- Validates active GST status
- Prevents fraudulent input tax claims
Tailored for Industry Specific Workflows
See how diverse commercial establishments leverage our specialized software every day.
B2B Manufacturers & Fabricators
Issue multi-item tax invoices with detailed HSN codes, freight charges, and delivery challans.
Distributors & FMCG C&F Agents
Generate high-volume daily invoice batches with integrated E-Way bills for supply vans.
Service Providers & Contractors
Bill clients for civil work, AMC contracts, and professional consulting with SAC code support and TDS tracking.
Retailers Upgrading from Manual Bills
Transition from paper bill books to neat, error-free computer invoices that build customer trust.
Frequently Asked Questions
Clear answers to common questions about features, compatibility, and implementation.
How does Onezo ensure invoices comply with Karnataka GST laws?
Onezo is updated in real-time whenever GST Council guidelines or tax slabs change. It validates HSN codes, checks mandatory e-invoice fields, and enforces tax rules automatically.
Can my Chartered Accountant access these reports directly?
Yes! You can invite your CA with dedicated read-only accounting permissions, allowing them to download GSTR-1, GSTR-3B, and sales registers whenever filing returns.
Can I create Credit Notes and Debit Notes in Onezo?
Yes. Onezo provides full credit note and debit note creation against original invoices with automatic tax adjustments and customer ledger updates.
Transform Your Daily Operations with Onezo
Join hundreds of successful businesses streamlining their billing, stock, and tax compliance.