Why New Tax Laws Must Not Rewrite the Past
Nigeria’s organised private sector has raised significant legal and economic concerns regarding the potential retroactive application of the Nigeria Tax Act (NTA) 2025 to Corporate Income Tax assessments for accounting periods that have already been concluded.
At the heart of the debate is a fundamental question: Can a new tax law reopen liabilities that were determined and settled under a previous legal regime?
The Core Issue
Many companies across Nigeria closed their books as at 31 December 2025, finalised audited financial statements, and determined their tax liabilities in accordance with the laws in force at the time. However, there are growing concerns that the Nigeria Tax Act 2025 may be applied retrospectively to those already closed accounting periods.
While the private sector acknowledges the government’s commitment to fiscal reforms, it insists that such reforms must align with constitutional safeguards and established legal principles.
The central argument is straightforward: tax laws must not rewrite the past.
The Legal Position: Tax Laws Operate Prospectively
The principle against retroactive taxation is deeply rooted in the rule of law and has been consistently upheld by Nigerian courts.
Section 44 of the 1999 Constitution protects citizens and businesses from arbitrary deprivation of property. Taxation, while a legitimate governmental function, must be exercised strictly within the boundaries of the law.
Additionally, the Interpretation Act provides that the repeal or amendment of a law does not affect accrued rights, obligations, or liabilities unless expressly stated. In the absence of clear legislative language authorising retroactive application, new tax provisions cannot lawfully reopen settled liabilities.
Nigerian courts have reinforced this principle in several decisions, including:
In A.G. Lagos State v. Eko Hotels Ltd, the court reaffirmed that accrued causes of action remain governed by the law in force when they arose.
In Shell Nigeria Closed Pension Fund Administrator Ltd v. FIRS, the Federal High Court held that an increase in Tertiary Education Tax could not be applied retroactively within an already concluded accounting year. The applicable rate was the one in force at the close of that period.
These decisions underscore a consistent judicial position: tax liabilities crystallise under the law applicable at the relevant time and cannot be reopened by subsequent legislation.
Practical Consequences of Retroactive Taxation
Beyond legal objections, the private sector warns of serious economic and operational consequences if retrospective application is pursued.
Reconstruction of Financial Records
Companies would be forced to reopen closed ledgers, revise tax treatments, recalculate deferred taxes, and adjust retained earnings an administratively burdensome exercise.
Re-Audit and Regulatory Re-Submission
Amended financial statements could trigger fresh audits and regulatory filings, particularly for listed entities subject to SEC and NGX requirements, resulting in significant compliance costs.
Cash Flow Disruption
Businesses may face unexpected tax liabilities without budgetary provisions. Legitimate tax credits and carry-forward positions could be jeopardised, leading to double taxation risks.
Erosion of Investor Confidence
Predictability and certainty are critical to investment decisions. Retroactive taxation undermines trust, discourages capital inflows, and conflicts with Nigeria’s goal of attracting sustainable investment.
The Private Sector’s Position
The organised private sector maintains that:
The Corporate Income Tax provisions of the Nigeria Tax Act 2025 should apply only prospectively from their effective date.
Assessments for the 2026 Year of Assessment may proceed under the new regime.
Accounting periods that closed in 2025 and earlier must remain governed by the laws in force when those periods ended.
Anything contrary, they argue, would introduce legal uncertainty and penalise compliance.
A Call for Statesmanship
To preserve confidence in Nigeria’s reform process, stakeholders have called on:
The Executive Chairman of the Nigeria Revenue Service to issue formal clarification that the Act applies prospectively.
The Honourable Minister of Finance to provide clear transition guidance.
The Presidential Committee on Fiscal and Tax Reforms to affirm the prospective application of the law.
The National Assembly to ensure implementation aligns with constitutional intent.
Conclusion: Reform with Respect for the Rule of Law
Nigeria stands at a critical moment in its fiscal history.
The 2025 tax reforms present an opportunity to build a more efficient, equitable, and globally competitive tax system.
However, the credibility of these reforms depends on their adherence to the rule of law.
As legal precedent consistently affirms, tax statutes must operate within defined temporal boundaries. Reform must strengthen certainty not undermine it. A tax system anchored in constitutional principles and predictability will better serve both government revenue objectives and long-term economic growth.
Post a Comment
Leave a Reply