Does Invoicemonk file GSTR-1 automatically?

IRP submission auto-populates GSTR-1, so filed values match issued invoices without re-entry. You still file GSTR-1 from the GST portal; the data is pre-populated.

Are CGST, SGST, and IGST split correctly?

Yes. The split is computed from the place of supply per Section 10 of the IGST Act; intra-state supply yields CGST+SGST, inter-state and export supply yield IGST.

Yes, within 24 hours of generation through the IRP. Invoicemonk exposes the cancellation flow with the reason code. After 24 hours, a credit note is required.

What about e-Way Bill?

For movements of goods above the e-Way Bill threshold, Invoicemonk can generate the EWB from the same invoice payload using the linked NIC API.

Do I need separate IRP credentials?

Yes — you generate API credentials inside the GST e-Invoice portal once and store them in Invoicemonk. Subsequent submissions are automatic.

India · GSTN / NIC (Invoice Registration Portal)

GST e-Invoicing (IRN + QR)

Invoicemonk submits Indian B2B invoices to the NIC Invoice Registration Portal, receives the IRN and digitally signed QR, and binds both to the GST invoice — CGST, SGST, and IGST computed per place-of-supply rules. Live since August 2023.

Start with Pro: $15/mo All 18 live e-invoicing mandates

ArtefactIRNTransportDirect API submission to the NIC Invoice Registration PortalLive since2023Applies toAll GST-registered businesses with aggregate turnover above INR 5 crore

What you get

Built for India from day one

What India GST e-Invoicing requires

Businesses above the aggregate-turnover threshold (currently INR 5 crore) must submit every B2B invoice, credit note, and debit note to the NIC Invoice Registration Portal in the prescribed JSON schema, receive an IRN (Invoice Reference Number) and a digitally signed QR, and print both on the invoice issued to the buyer. The IRP returns the signed payload within seconds; the IRN is required for the invoice to be legally valid.

How Invoicemonk meets GST e-Invoicing

Invoicemonk computes CGST/SGST/IGST per place of supply, builds the GST JSON schema, submits to the IRP, captures the IRN and signed QR, and renders both on the invoice PDF. GSTR-1 auto-population is supported because the IRP submission feeds the GSTR-1 return automatically. Cancellation within the 24-hour IRP window and credit-note linkage are first-class.

Who this applies to

GST-registered taxpayers with aggregate turnover above the current INR 5 crore threshold for all B2B supplies, exports, and supplies to SEZs. Below the threshold, e-invoicing remains optional but supported.

Cryptographic artefacts, in every jurisdiction we cover

Invoicemonk issues cryptographically signed structured invoices in every one of the 18 jurisdictions we cover, using the local artefact the tax authority requires:

CSID — ZATCA (Saudi Arabia)
IRN — GST India (NIC IRP), FIRS Nigeria, GRA Ghana
UUID — MyInvois Malaysia
QR + Control Unit Number — KRA eTIMS (Kenya)
Chave de Acesso — NF-e / NFS-e (Brazil)
Fiscal signature — ZIMRA FDMS (Zimbabwe)
XAdES digital signatures — Peppol (EU), MTD (UK)
ICP-Brasil A1 — Brazilian NF-e / NFS-e signing

Each mandate page documents the local artefact, signing algorithm, certificate authority, and the spec section that requires it.

FAQ

India e-invoicing, answered

Related guides

Implementation playbooks for India

Step-by-step guides, explainers, and error catalogues for the IRN workflow.

Editorial illustration of India's IRN issuance and QR-code validation for the how to comply with gst irn india guide

How to Comply with GST IRN in India: Onboard with NIC IRP and Issue Your First Signed QR Invoice (2026)

Step-by-step playbook for issuing GST e-invoices in India through the NIC Invoice Registration Portal — onboarding, GST INV-01 JSON, IRN issuance, signed QR, 30-day upload limit, and 2FA enforcement.

Read guide

Editorial illustration of India's IRN issuance and QR-code validation for the gst irn india explained guide

GST IRN India Explained: Scope, Threshold History, Input Tax Credit, and the 2026 Timeline

A plain-English explainer for GST e-invoicing in India — what the IRN is, who must comply, the threshold step-down from ₹500 crore to ₹5 crore, how the signed JWT QR enables ITC, the 30-day upload limit, and what is changing through 2026.