E-Invoice Readiness Checklist

I have a valid Tax Identification Number (TIN)

Your 10-digit TIN from FIRS is required for e-invoicing registration.

My business is VAT-registered

E-invoicing is mandatory for all VAT-registered businesses.

I have my NRS Business ID / Service ID

You'll receive this after registering on the NRS e-invoice portal.

I have e-invoicing software (System Integrator)

You need software like ZUTAX to create, validate, and manage e-invoices.

My software connects to a certified Access Point Provider (APP)

APPs transmit your invoices through the Peppol network to FIRS.

I can generate invoices in UBL/XML format

NRS requires invoices in Peppol BIS Billing 3.0 format.

My solution supports ECDSA digital signatures

Invoices must be signed using Elliptic Curve Digital Signature Algorithm.

I have TINs for all my B2B customers

B2B invoices require the customer's TIN for validation.

My products/services have proper classification codes

Items need UNSPSC/HS codes for NRS compliance.

My invoices include all mandatory NRS fields

IRN, QR code, digital signature, and all required data elements.

My staff is trained on e-invoicing procedures

Team members should know how to create and manage e-invoices.

I have documented e-invoicing workflows

Clear processes for invoice creation, approval, and transmission.

I know how to handle rejected invoices

Understand validation errors and how to correct them.

I have successfully sent test invoices

Test the full flow from creation to transmission before go-live.

I have received valid IRNs from FIRS

Invoice Reference Numbers confirm successful submission.

My customers can receive my e-invoices

Verify that invoices are delivered to customers correctly.