Mergers and acquisitions in Nigeria will attract different tax bills under the country's new tax regime, a shift that directly alters deal math for acquirers, sellers and their advisers.

The change arrives as Nigeria pushes through a broad overhaul of its fiscal framework. For boards weighing transactions in Africa's largest economy, the practical question is no longer whether tax treatment will change — it is how the new rules distribute cost and risk across a deal's structure.

BusinessDay reports that M&A transactions face different tax outcomes under the new regime, a distinction that matters at every stage of a transaction, from preliminary structuring through to post-closing integration.

What does the new regime change for dealmakers?

The core issue is straightforward. Deals structured one way can now carry a materially different tax burden than deals structured another. That variance forces transaction lawyers, financial advisers and corporate development teams to reprice assumptions built under the previous rules.

For chief executives and CFOs, the implications touch several areas of transaction planning:

• Deal structuring decisions that were tax-neutral under the old rules may now tilt the outcome for one party.
• Share deals and asset deals — typically taxed differently in most jurisdictions — deserve fresh analysis under Nigeria's reformed system.
• Cross-border transactions involving Nigerian assets or entities warrant review of how the new regime treats foreign participants.
• Earn-outs, deferred consideration and other contingent structures may trigger different treatment than they did previously.

How should boards respond?

Companies with live or pipeline transactions in Nigeria should treat the regime change as a trigger for renegotiation or restructuring review. Deals signed under the old assumptions may no longer deliver the economics both sides priced in.

Three steps deserve priority:

1. Re-run tax modelling. Advisers should model the transaction under the new regime before any binding commitment, and where deals are already signed but not closed, parties should assess whether the change affects completion obligations.
2. Revisit representations and tax indemnities. Purchase agreements drafted under the prior framework may allocate tax risk in ways the new regime renders obsolete.
3. Consider timing. The point at which a transaction completes within the transition to the new regime can determine which tax treatment applies.

Why does this matter beyond Nigeria?

Nigeria remains one of West Africa's principal destinations for inbound investment, spanning banking, telecommunications, consumer goods and energy. Any change to how transactions are taxed ripples into valuations across the region.

Private equity firms with Nigeria exposure face a particular imperative. Exit structures designed years ago — whether trade sales, secondary buyouts or listings — were modelled on the previous tax framework. A regime that imposes different bills on M&A transactions can compress net proceeds or raise the cost of entry, depending on structure.

What is the broader context?

Nigeria has been reworking its tax framework as part of wider efforts to boost revenue and improve compliance. Reform of this scale inevitably redistributes burdens across transaction types, and the M&A market sits squarely in the path of that redistribution.

For dealmakers, the operative lesson is not that transactions have become more expensive across the board. It is that the bill now depends more heavily on how a deal is put together.

Executives planning Nigeria transactions should engage local tax counsel early, before term sheets harden. The gap between a well-structured deal and a poorly structured one — measured in after-tax returns — has just widened.

The full implications will surface in the coming months as transactions close under the new framework and the Federal Inland Revenue Service provides administrative guidance. Boards should watch early precedent closely: the first deals to navigate the regime will set the practical benchmarks every subsequent negotiation references.