The Nigeria Revenue Service ( NRS) e-Invoicing framework requires specified categories of taxpayers to electronically generate, validate, and submit their invoices in real-time.
The NRS has launched a new electronic invoicing solution (e-invoicing) to modernise Nigeria’s tax administration and improve revenue collection. The system, known as the Merchant-Buyer Solution (MBS), officially went live on August 1, 2025, after a successful pilot program that began in November 2024.
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Initially, the platform is being rolled out for large taxpayers, defined as companies with an annual turnover of N5 billion or more. Within the first two weeks, 1,000 of the 5,000 eligible firms (20%) had already begun integrating with the NRS-MBS platform. MTN Nigeria was the first company to successfully transmit a live electronic invoice, with other major firms like Huawei Nigeria and IHS Nigeria preparing to follow suit.
What is E-invoicing?
It is an electronic invoicing programme, where invoices are no longer just digital paper (like a PDF). Instead, they are structured data sent directly from a company’s accounting software to the NRS in real-time.
The e-invoice is a digital representation of a transaction between a supplier and a buyer, which contains essential transaction details like supplier and buyer information, item descriptions, quantities, prices, tax, and total amounts.
What system will be used for E-invoicing?
A major shift in Nigeria’s tax administration in 2025 was the rollout of mandatory electronic invoicing for large taxpayers under the Merchant Buyer Solution (MBS), the government’s flagship e-invoicing platform.
The NRS receives invoices from Businesses via the MBS (e-Invoice) Portal.
Read also:NRS sets new deadlines for e-invoicing rollout
How will companies connect their ERPs to NRS?
FIRS appointed CWG Plc as a system integrator for the country’s mandatory electronic invoicing programme.
As a system integrator, the company will link enterprise resource planning (ERP), accounting, and invoicing platforms directly to the FIRS engine, enabling the secure transmission of structured transaction data without disrupting business operations.
It is a system that enables tax authorities to capture transaction data in near real time, particularly for value-added tax (VAT), significantly reducing under-reporting, invoice manipulation, and compliance gaps. By automating invoice issuance and reporting, MBS marks a decisive move away from manual filings toward digital, transaction-level oversight.
The central mechanism of this mandate involves the direct integration of a taxpayer’s existing accounting, ERP, or invoicing system with the NRS portal.
How does it work?
When a sales transaction occurs, the invoice must be automatically transmitted to theMBS (e-Invoice) Portal, which validates the data and returns a unique FIRS Invoice Number and a QR Code.
This validated invoice, now carrying the FIRS seal of approval, is the only legally compliant document for the transaction. Non-compliance carries significant risks, including potential penalties, loss of input tax credits, and disruptions to business operations.
Read also;Nigeria targets 18% tax-to-GDP ratio through legal, digital restructuring
Who are those required to integrate the ERP?
Under the current framework, companies with an annual turnover of N5 billion or more, estimated at approximately 5,000 large taxpayers nationwide, are required to adopt the platform. Within weeks of launch, roughly 1,000 firms, or 20 percent of eligible taxpayers, had commenced integration, according to official data.
Although initially limited to large taxpayers, policymakers view the MBS e-invoicing system as a test case for eventual expansion across other sectors and taxpayer categories, positioning digital invoicing as a central pillar of Nigeria’s tax modernisation drive.
For medium taxpayers with a turnover between N1 billion and N5 billion, the engagement phase is currently ongoing and will run through March 2026. This group is expected to move into a pilot rollout in the second quarter of the year before an official go-live date on July 1, 2026. Enforcement for this category is slated to begin in January 2027.
Emerging taxpayers, consisting of businesses with a turnover below N1 billion, have been granted a longer runway to adapt to the new digital requirements. Their engagement phase is set to begin in January 2027, with a full go-live date scheduled for July 1, 2027, and enforcement activities expected to start in early 2028.
What are the core requirements for the FIRS e-invoicing system?
According to CWG, these are the technical and procedural requirements that demand immediate attention:
There is mandatory adoption for large and medium-sized enterprises. Businesses must proactively confirm their status and compliance obligations.
Real-Time Validation
The system requires instantaneous communication. Any delay or failure in generating the FIRS Invoice Number means the transaction is technically unverified, leading to potential operational bottlenecks at the point of sale.
Data Consistency
The data shared with the FIRS must be consistently structured and accurate, drawing directly from the business’s source systems (e.g., SAP, Oracle, QuickBooks, etc.). This is where the complexity of system integration becomes critical.
What are some challenges businesses will face with FIRS e-Invoicing Integration?
CWG said that for many organisations, the challenge lies in the technical execution. Simply purchasing a stand-alone e-invoicing software often fails to address the root problem: connecting that solution seamlessly and securely to the company’s existing Enterprise Resource Planning (ERP) or accounting software.
The firm said that manual data transfer or siloed systems defeat the purpose of real-time automation and compliance.
This is precisely why the FIRS established a certification process for System Integrators. These certified partners are the technical bridge-builders authorized to handle the complex, end-to-end integration required to link a diverse range of business platforms to the FIRS e-Invoice portal.
As the Federal Inland Revenue Service (FIRS) rolls out real-time invoice validation, companies are discovering that their exposure depends not only on their own systems, but on how prepared their distributors, retailers, and partners are.
For manufacturers and banks alike, the risk shows up where money is supposed to move smoothly. Manufacturers depend on distributors issuing validated invoices before payments can clear, while banks sit in the middle of those flows, processing settlements, merchant payments, and reconciliations that now rely on real-time invoice validation.
“Large manufacturers rely heavily on extensive distributor networks, and ensuring that those distributors are compliant is critical to maintaining uninterrupted operations,” said Farida Kabir, tax technology lead at PwC Nigeria, speaking at a recent tax technology webinar.
