Big4India
GST Services

e-Invoicing Is Mandatory — Get Set Up Before It Costs You

Non-compliance with e-invoicing means your invoices are invalid, ITC is denied to your buyers, and you face penalties. Big4India sets up your e-invoicing system seamlessly.

All-Inclusive Pricing
3-7 business days for complete setup and training
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Overview

GST e-Invoicing is a system where B2B invoices are electronically authenticated by the GST Network through the Invoice Registration Portal (IRP). Each invoice gets a unique Invoice Reference Number (IRN) and a QR code, making it a valid tax document.

Currently mandatory for businesses with turnover exceeding ₹5 crore, e-invoicing ensures real-time reporting of invoices to the GST system, auto-populates GSTR-1, and enables seamless ITC matching. Non-compliance means your invoices are treated as invalid, and your buyers cannot claim ITC.

Big4India helps you set up e-invoicing — from software configuration to IRP integration — and ensures your team is trained to generate compliant e-invoices for every B2B transaction.

Key Benefits

  • Auto GSTR-1 population — e-invoices automatically populate your GSTR-1, reducing filing effort
  • Faster ITC for buyers — authenticated invoices enable quicker ITC claims for your customers
  • Reduced errors — system validation catches invoice errors before they're issued
  • E-way bill integration — e-invoice data can auto-generate Part A of e-way bills
  • Compliance assurance — valid invoices prevent penalties and ensure business continuity
  • Real-time reporting — instant transmission of invoice data to the GST system

Step-by-Step Process

3-7 business days for complete setup and training

1

Applicability Assessment

We verify if e-invoicing is mandatory for your business based on aggregate turnover and the applicable threshold.

2

Software & ERP Evaluation

We assess your current invoicing software/ERP and determine the best approach — API integration, offline tool, or portal-based generation.

3

IRP Registration & Configuration

We register your GSTIN on the e-Invoice portal, obtain API credentials (if using API mode), and configure the technical setup.

4

Testing & Validation

We run test invoices through the sandbox environment to ensure your system generates valid e-invoices with correct schema and data.

5

Team Training

We train your billing/accounts team on the e-invoicing workflow — generating IRN, printing QR codes, handling errors and cancellations.

6

Go-Live Support

We provide support during the first week of live e-invoicing to handle any issues, edge cases, or error resolutions.

Documents Required

  • GSTIN and GST portal login credentials
  • Details of current invoicing software/ERP
  • Sample invoices for configuration testing
  • Authorized signatory details for IRP registration
  • HSN/SAC codes used in invoicing
  • Business process flow for billing

Transparent Pricing

One-time setup fee plus optional ongoing support. Pricing depends on your invoicing system complexity.

What's Included

  • Applicability assessment
  • IRP portal registration
  • Software/ERP integration guidance
  • Test invoice validation
  • Team training session
  • First week go-live support
  • Error resolution guide
  • Dedicated e-invoicing expert

₹0 — e-Invoice portal registration and IRN generation are free. No per-invoice charges from the government.

Why Choose Big4India

End-to-End Setup

from portal registration to team training, we handle the complete e-invoicing implementation.

Software Agnostic

whether you use Tally, Zoho, SAP, or custom software, we integrate with your existing system.

Go-Live Support

we don't leave you alone on Day 1. Our expert is available during your first week of live e-invoicing.

Error Management

we create an error resolution playbook for your team to handle common e-invoicing issues independently.

Future-Proof

as thresholds change and more businesses become covered, your system will already be ready.

Ongoing Compliance

optional monthly support for e-invoicing updates and issue resolution.

Frequently Asked Questions

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