The 15% Minimum Effective Tax Rate (METR) introduced by the Nigeria Tax Act marks a clear shift in how corporate tax is assessed, aiming to ensure that sizable enterprises contribute a baseline level of tax even when they qualify for incentives or exemptions.
The rule is anchored in Section 6(3) and Section 57 of the Act, each targeting different taxpayer categories but sharing the same objective of a minimum tax burden.
Foreign subsidiaries and the parent‑company top‑up
Section 6(3) applies when a Nigerian‑registered parent has a non‑resident subsidiary that pays tax abroad at an effective rate below the 15% threshold. The provision captures any foreign affiliate whose earnings remain linked to Nigeria through ownership or control, regardless of the parent’s size.
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If the offshore profit is taxed at, say, 8%, the Nigerian parent must pay an additional amount in Nigeria sufficient to lift the subsidiary’s effective rate to the METR. The liability sits with the parent, not the overseas entity, preventing profit shifting into low‑tax jurisdictions without a corresponding domestic charge. This mirrors global anti‑base erosion principles, which aim to curb aggressive tax planning.
In practice, firms will need to model the cash impact of a possible top‑up each fiscal year. The extra payment can affect working‑capital forecasts, especially for groups that rely on offshore cash reserves to fund domestic projects.
Large firms and multinational groups inside Nigeria
Section 57(2)(a) brings the METR to any entity that belongs to a multinational group whose aggregate turnover reaches at least €750 million. The threshold is measured at the group level, so even a modest Nigerian subsidiary can fall under the rule if the global enterprise meets the turnover test.
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This means that a locally operating branch may be required to pay a top‑up despite generating only a small share of the group’s revenue. The rule focuses on Nigerian‑sourced profits, and the additional tax is triggered when the effective rate on those profits is below the 15% floor.
For large domestic corporations, Section 57(2)(b) sets a turnover bar of N50,000,000,000 in the financial year. Until the Nigerian Revenue Service issues a regulation to raise that limit, any firm surpassing the statutory figure will be subject to the minimum‑tax calculation.
Overall, the introduction of the METR forces organisations to revisit their tax structures and cash‑flow projections, as the minimum‑tax framework tightens around both cross‑border profit‑shifting and large domestic earnings.