How to Conduct M&A Due Diligence in Nigeria (2026): a Practical Checklist for Buyers

M&A due diligence Nigeria has entered a more demanding phase in 2026, with tightened tax rules, a reformed fintech rulebook and sharper competition enforcement reshaping what buyers must investigate before they commit capital. This guide sets out a practical, checklist-based method for organising and executing a transaction review, from initial scoping through to closing conditions and post-completion remediation. It is written for in-house counsel, private equity and strategic buyers, CFOs and transaction teams who need to allocate resources, brief external advisers and quantify risk with precision.

Throughout, regulatory statements are tied to the primary sources published by the Central Bank of Nigeria (CBN), the Securities and Exchange Commission (SEC), the Federal Inland Revenue Service (FIRS), the Corporate Affairs Commission (CAC) and the Federal Competition and Consumer Protection Commission (FCCPC).

Overview: what this M&A due diligence Nigeria guide covers

This guide addresses due diligence from the buyer’s perspective on Nigerian targets, whether the transaction is structured as a share acquisition or an asset purchase. The distinction matters throughout: in a share deal the buyer inherits the target’s historic liabilities, contingent claims and regulatory exposures, so the review must be exhaustive; in an asset deal the scope narrows to the specific assets, contracts and permits being transferred, but change-of-control and consent issues remain live.

Cross-border buyers face additional layers, foreign exchange documentation, Certificates of Capital Importation, and sector-specific approvals that can determine whether a deal is completable at all. The scope here is deliberately jurisdiction-specific: it assumes a Nigerian target governed by the Companies and Allied Matters Act 2020 (CAMA) and subject to the regulators listed above. It does not replace tailored legal advice, and the cost and timing figures given are 2026 estimates that must be validated against live quotes from local counsel and specialist advisers. Treat this as the operational backbone for building a bespoke M&A checklist Nigeria buyers can execute against.

Eligibility: who should run this due diligence and when

A credible mergers and acquisitions due diligence Nigeria exercise is a team effort led by buyer in-house counsel or a lead external transaction lawyer, supported by financial and tax advisers, and, where the target operates in a regulated sector, specialist regulatory counsel engaged from day one. Certain sectoral approvals (banking, payments, telecoms, insurance) must be sought before completion, not after, and identifying those triggers early is itself part of the eligibility assessment.

• When to run a full DD. Any share acquisition, any transaction involving a regulated target, any deal with meaningful contingent liabilities (litigation, tax audits, environmental exposure), and any cross-border acquisition requiring CBN, SEC or FCCPC clearance.
• When an accelerated DD is acceptable. Small asset carve-outs, intra-group reorganisations, or low-value transactions with limited regulatory exposure, but always retain a minimum core of corporate, tax and litigation checks.

Step-by-step M&A due diligence Nigeria process

The following eight steps form the core procedural spine of the review. Each identifies the deliverable, the sub-tasks, the responsible party and the principal red flags. Steps run partly in parallel, specialist modules should not wait for the corporate review to finish.

Step 1, Transaction scoping and DD plan

Begin by fixing scope. Decide whether the transaction is a share or asset deal, set materiality thresholds (the value below which findings will not individually be pursued), and map the regulatory triggers early, CBN for banks and payment service providers, SEC for public company transactions and certain regulated capital market activities, and FCCPC for merger notifications. Execute a non-disclosure agreement before any confidential information changes hands.

• Deliverables. A written DD plan, a data room checklist, an agreed timeline and a budget with a contingency buffer for regulatory approvals.
• Responsible party. Buyer in-house counsel or lead external counsel, with input from the deal principal on commercial priorities.

Step 2, Corporate and governance due diligence

Corporate due diligence Nigeria starts with verifying the target’s legal existence and capital structure against CAC records: the certificate of incorporation, the memorandum and articles of association, and the statutory filings (including the register of members and particulars of directors). Reconcile the share register against board and shareholder resolutions to confirm that every share issuance and transfer was properly authorised.

• Key checks. Incorporation and constitutional documents, share register, minute books, material board and shareholder resolutions, beneficial ownership records, and all related-party transactions.
• Red flags. Unregistered charges over company assets, inconsistent or missing minute-book entries, unauthorised share issuances, undisclosed nominee or beneficial ownership structures, and gaps in annual returns filed with the CAC.

Beneficial ownership deserves particular attention: CAMA 2020 and CAC guidance impose disclosure obligations, including the requirement to maintain a register of persons with significant control, and nominee arrangements that obscure the ultimate controllers can create both regulatory and reputational exposure for a buyer.

Step 3, Financial and tax due diligence Nigeria

Financial review centres on audited financial statements for the last three to five years, supported by management accounts for the current period. But it is the tax due diligence Nigeria stream that has expanded most sharply for 2026. Confirm the accurate filing of company income tax, value added tax and withholding tax, examine transfer pricing arrangements, and obtain the target’s tax clearance certificates and any correspondence relating to FIRS audits or disputes.

• Focus areas. Audited accounts, all tax returns and assessments, tax clearance status, transfer pricing documentation, VAT compliance and any claimed tax incentives or reliefs.
• Sample enquiries. Are declared tax incentives and any pioneer status reliefs properly documented and still valid? Are there unremitted withholding tax obligations on royalties, dividends or service payments? Has the target been subject to a back-duty assessment?

Unquantified tax exposures are among the most common deal-adjusting findings in Nigerian transactions. Where liabilities cannot be resolved before signing, they should be provided for through specific indemnities, price adjustments or escrow reserves informed by a tax adviser’s estimate. Buyers should also note that Nigeria’s tax framework has been significantly reformed, and current FIRS guidance should be checked for the applicable regime and rates in force.

Step 4, Regulatory and sector due diligence Nigeria

Regulatory due diligence Nigeria identifies which approvals a transaction requires and when they must be obtained. The principal triggers are the CBN for banks, payment service providers and other licensed financial institutions; the SEC for public company transactions and regulated capital market activities; the Nigerian Communications Commission (NCC) for telecom licences and assets; and the FCCPC for merger notifications where the applicable statutory criteria are met.

• Identify the approvals. Review every licence the target holds, its renewal history and its change-of-control conditions.
• Map the timelines. Regulatory clearance is the single most common cause of completion delay. Build the regulator’s expected processing period into the closing timetable rather than treating it as a formality.

Where the target holds a CBN licence, a change of control will frequently require CBN notification or prior approval, so verify the specific licence terms against current CBN guidance before assuming a deal can complete on the parties’ preferred timetable.

Step 5, Contracts, IP and commercial due diligence

Review the target’s material commercial contracts, prioritising the most significant by value or strategic importance. The critical issue in an M&A context is change-of-control: many customer, supplier and financing agreements permit the counterparty to terminate or renegotiate on a change of ownership, which can materially erode the value being acquired.

• Contracts. Material customer and supplier agreements, financing and security documents, and any exclusivity or non-compete arrangements.
• Intellectual property. Verify ownership and registration of trademarks, patents and software, confirm assignments from developers and contractors, and check for pending disputes or challenges.

Step 6, Employment, pensions and benefits due diligence

Assess the workforce as both an asset and a liability. Review employment contracts, senior executive terms, secondment arrangements and any collective bargaining agreements, and quantify termination and redundancy exposure.

• Checks. Employment and secondment contracts, pension scheme documentation and contribution status under the Pension Reform Act, union and collective bargaining arrangements, and outstanding employee claims.
• Liabilities. Accrued but unpaid pension contributions and mis-stated termination liabilities are frequent findings that feed directly into price or indemnity negotiations.

Step 7, Real estate, environmental and asset due diligence

Verify title to all material real estate, review leases for term and change-of-control provisions, and confirm land use and planning compliance. Environmental review is essential in extractive, manufacturing and industrial deals.

• Real estate. Title documents, governor’s consent status under the Land Use Act, leases and occupancy agreements.
• Environmental. Permits, environmental impact assessment reports and any history of regulatory breaches or remediation obligations.

Step 8, Compliance, AML and sanctions due diligence

Complete the review with a compliance sweep covering beneficial ownership verification, anti-money-laundering and know-your-customer records, sanctions screening of the target and its principals, and data protection compliance under the Nigeria Data Protection Act 2023 and related guidance issued by the Nigeria Data Protection Commission. For financial-sector targets, CBN AML/CFT requirements impose specific obligations that must be evidenced.

• Checks. AML/KYC files, sanctions screening results, beneficial ownership confirmation, and data protection policies including any cross-border data transfers.

Having worked through all eight streams, consolidate the findings into a risk register. A condensed action checklist derived from these steps should accompany the DD report so the deal team can track outstanding items to closing.

Required documents to request from the seller

The document request is the operational engine of due diligence. Structure it by workstream so that each specialist adviser receives the materials relevant to their module, and sequence the request so that the most fundamental documents, those verifying legal existence and title, arrive first. A poorly ordered request wastes advisers’ time and delays the point at which material risks surface.

How to structure the documents request

Issue a single master request organised by the eight DD streams above, marking each item’s priority and owner. Push corporate constitutional documents, the share register, minute books, audited financials, tax filings and licences to the top; these underpin every downstream analysis. Where documents are voluminous (for example, hundreds of customer contracts), apply the materiality thresholds set in Step 1 and request a representative sample plus all contracts above the threshold. The table below sets out the standard request for a Nigerian target.

Timeline and who does what

A typical mid-market transaction runs the desk review and specialist modules in parallel to compress the overall timetable, with regulatory filings as the principal variable. The timeline below assumes a reasonably prepared seller and a populated data room; a disorganised seller can double the document-gathering phase. Note that step 8, closing conditions and regulatory filings, carries the widest range, anywhere from two weeks to several months depending on which regulator’s approval is required.

Read against this timetable, the core diligence phase (steps 1 to 7) commonly takes three to six weeks. The lesson for planning is to start regulatory engagement in parallel with the desk review rather than sequentially after it.

Costs and fees

Budgeting for a Nigerian acquisition means separating adviser fees from regulator fees and building a contingency for contingent tax and regulatory exposures. The figures below are broad 2026 estimates only; actual quotes vary significantly by deal complexity, firm tier and sector, and official regulator fees should be confirmed against the current published schedules of the relevant authority. Always obtain fixed or capped fee proposals from transactional counsel and specialist advisers before committing, and reserve separately for any escrow or holdback required to cover identified risks.

Add a contingency buffer for specialist regulatory approvals from the CBN and SEC, and obtain those quotes early, under-budgeting for regulatory workstreams is a recurrent cause of transaction cost overruns.

What changed in 2026, regulatory and tax callouts buyers must add

The most important development for M&A due diligence Nigeria in 2026 is that the standard corporate review is no longer sufficient on its own. Three regulatory streams, tax, fintech and competition, have tightened in ways that expand the scope of a defensible diligence exercise. Each subsection below explains the change and its practical diligence implication.

Tax reform highlights (2026)

Following the recent overhaul of Nigeria’s tax legislation, the tax environment demands a deeper post-reform analysis than buyers previously ran. Where earlier diligence might have been satisfied with confirming that returns were filed, buyers must now reconcile claimed incentives against current entitlements, trace withholding tax obligations across the full chain of the target’s payments, and verify tax clearance history in detail. FIRS guidance should be consulted for the current treatment of withholding obligations and the documentation required to evidence compliance. The practical implication is a materially larger tax module and a stronger case for specific tax indemnities where historic positions are uncertain.

CBN and fintech due diligence Nigeria rulebook updates (2026)

The evolving CBN framework for payment service providers and other fintech operators means fintech due diligence Nigeria has become a discrete workstream rather than a footnote to the corporate review. Buyers acquiring targets that hold or rely on CBN licences must check licensing categories, confirm whether a change of control triggers CBN notification or approval, and assess any regulatory sandbox or migration status. Consult current CBN guidance to confirm the specific licence conditions, because assuming a straightforward transfer where prior approval is in fact required can derail a completion timetable entirely.

SEC and capital markets items (2026)

For transactions involving public company targets or regulated capital market activities, SEC requirements and its enforcement posture warrant close attention, including under the framework of the Investments and Securities Act. Verify the target’s history of SEC filings (where applicable) and any enforcement or compliance correspondence, and confirm which notifications or approvals the transaction requires under current SEC rules. On the competition side, the FCCPC’s merger control regime under the Federal Competition and Consumer Protection Act 2018 requires notification where the applicable criteria are met or where a transaction may substantially lessen competition; obtain FCCPC guidance early, because a required filing that is identified late can add weeks to closing.

Standard DD versus 2026 enhanced DD

The table below distils the practical shift. Buyers running a legacy checklist will under-scope in exactly the areas where 2026 enforcement is sharpest.

Common pitfalls and red flags

Certain findings recur across Nigerian transactions and either kill deals or drive hard renegotiation. Recognising them early allows the deal team to structure protections before value leaks away.

Top red flags

• Unquantified tax exposure. Unfiled returns, unremitted withholding tax or open FIRS assessments.
• Regulatory approval gaps. Change-of-control conditions on CBN, SEC or NCC licences discovered late.
• Defective corporate authority. Unauthorised share issuances or missing resolutions.
• Change-of-control triggers. Material contracts terminable on the transaction.
• Beneficial ownership opacity. Nominee structures obscuring ultimate control.
• Contingent litigation. Undisclosed or threatened claims.
• Pension and employment liabilities. Accrued unpaid contributions and mis-stated termination costs.
• Data protection non-compliance. Unmapped cross-border transfers and weak breach controls.
• Title and environmental defects. Missing governor’s consent or unremediated environmental breaches.
• IP ownership gaps. Software or trademarks not properly assigned to the target.

Mitigation strategies

Not every risk can be resolved before signing. Where it cannot, allocate it: specific indemnities for identified exposures, escrow or holdback for quantifiable contingent liabilities, warranty and indemnity insurance for insurable risks, and conditional closing where a regulatory consent or remediation must precede completion. Serious licensing, tax or regulatory defects may be uninsurable and require a price adjustment or, in the worst case, abandonment.

Next steps and how to act on your M&A due diligence Nigeria checklist

Executing a rigorous M&A due diligence Nigeria process in 2026 means going beyond the legacy corporate checklist to build in the enhanced tax, CBN fintech and competition workstreams that now define a defensible review. Use this guide to scope your DD plan, structure your document request, brief your advisers and set a realistic timetable that treats regulatory approval as a critical-path item rather than a formality. Buyers who plan the regulatory streams in parallel, budget a contingency for CBN and SEC approvals, and consolidate findings into a disciplined risk register are the ones who close on time and on terms.

For jurisdiction-specific advice on a live transaction, engage experienced Nigerian corporate and M&A counsel early, and consult the primary regulator sources below to validate every regulatory and tax assumption before you commit.

This article is informational and does not constitute legal advice. Regulatory requirements, thresholds and procedures change; verify all positions with the relevant regulator and qualified counsel before acting.

Sources

1. Corporate Affairs Commission (CAC)
2. Central Bank of Nigeria (CBN)
3. Securities and Exchange Commission, Nigeria (SEC)
4. Federal Inland Revenue Service (FIRS)
5. Federal Competition and Consumer Protection Commission (FCCPC)
6. Nigerian Bar Association (NBA)
7. Nigerian Communications Commission (NCC)