Nigeria’s solid minerals sector is formalising fast. Local value addition is now a licensing principle, mining cooperatives are bringing artisanal miners into the formal economy, and processing investment is flowing in.
But much of the chain that moves a mineral from pit to export container still runs on cash, handwritten receipts and informal relationships. Under Nigeria’s e-invoicing mandate, that is a direct risk to your VAT input claims, your deductions and your audit position. Energy companies face the same exposure through long chains of contractors and suppliers, many of whom are not yet issuing e-invoices.
Why e-invoicing compliance is non-negotiable
The Nigeria Revenue Service (NRS) e-invoicing mandate, delivered through the Merchant Buyer Solution (MBS), requires invoices validated by NRS in real time, each carrying an Invoice Reference Number (IRN).
Large taxpayers (turnover above ₦5 billion) went live in November 2025. Medium taxpayers (₦1 billion to ₦5 billion) went live on 1 July 2026, with enforcement scheduled for January to March 2027. Emerging taxpayers below ₦1 billion follow from July 2027, with enforcement in 2028.
Every sale you make must go through an NRS-validated e-invoice, and every purchase you claim input VAT on or deduct needs proper documentation behind it. Exporters should pay particular attention: zero-rated exports often leave them in a credit position, and recovering that input VAT is only as strong as the invoices supporting it.
Where the gaps are
Buying centres and aggregators. Processors and exporters rarely buy straight from the pit. When intermediaries’ records are incomplete, the buyer doesn’t create the gap. They inherit it, along with the compliance exposure.
A fragmented services layer. Haulage, equipment hire, site security, assay labs, warehousing and clearing agents are often small, informal providers who are not issuing e-invoices. Each one is a line in your expense ledger that may not stand up to scrutiny.
Deep contractor chains in energy. Upstream, power and renewables projects run through layers of contractors, subcontractors and community-based service providers, many well below the medium taxpayer threshold.
Special VAT treatment doesn’t mean invoice-free. Exemptions and zero-rating change the VAT on the invoice, not the obligation to issue one.
How to close the gap
Make your own invoicing airtight. Connect your ERP or accounting system to the MBS through an accredited Access Point Provider or System Integrator, so every sale is validated automatically rather than as a manual step at month-end.
Build compliance into procurement. Make a valid TIN, and an IRN-bearing invoice where the supplier is already onboarded, part of supplier onboarding and payment approval.
Know which suppliers are in scope. Large and medium suppliers should already be issuing e-invoices. For emerging suppliers, including most cooperatives and small buying centres, keep clean purchase records until they come into scope in July 2027.
Connect invoices to your paper trail. Link e-invoices to weighbridge tickets, assay certificates, royalty payments, metering data and export documents for one consistent trail from source to sale.
A role for industry bodies
No single company can formalise thousands of small suppliers alone. The Miners Association of Nigeria and mining cooperatives, alongside energy groups such as the Independent Petroleum Producers Group, the Petroleum Technology Association of Nigeria, the Association of Power Generation Companies and the Renewable Energy Association of Nigeria, are well placed to coordinate readiness at sector level.
That could mean agreeing a common MBS integration model, running TIN registration drives through cooperatives and contractor onboarding, keeping a shared registry of verified suppliers in line with the Nigeria Data Protection Act, and educating miners at buying points on how documented sales strengthen their tax position and access to finance.
The bottom line
With medium taxpayer enforcement starting in early 2027, the time to close the documentation gap is now. Businesses that build e-invoicing into procurement and sales today will protect their input VAT claims, reduce audit exposure and build a fully documented value chain from pit to port and wellhead to market.
If you’re a mining company, energy operator, processor, exporter or industry association exploring e-invoicing compliance, DigiTax can help. Get started at digitax.tech/ng