Nigeria's recently enacted tax reform laws, signed by President Bola Tinubu, are slated for enforcement starting January 1, 2026, a timeline reiterated by Taiwo Oyedele, Chairman of the Presidential Committee on Fiscal Policy and Tax Reforms. Oyedele, speaking after a meeting with President Tinubu in Lagos, assured journalists that the reforms, despite widespread criticism, would proceed as planned, claiming they would offer significant relief to the Nigerian populace. He asserted that approximately 98 percent of workers would face minimal to no Pay-As-You-Earn (PAYE) taxes, and 97 percent of small businesses would be exempt from Corporate Income Tax, Value Added Tax (VAT), and Withholding Tax, with large companies also expected to benefit from reduced tax burdens. These reforms, comprising four tax bills signed on June 26, 2025, are heralded by the administration as the most substantial overhaul of Nigeria’s tax system in decades, aiming to establish a unified Nigeria Revenue Service.

However, the tax reforms have been embroiled in deep controversy, with accusations of legislative tampering casting a shadow over their legitimacy. Lawmakers, opposition figures, and civil society groups allege that the versions of the bills signed by the President are not the same documents passed by the National Assembly. Abdussamad Dasuki, a member of the House of Representatives, publicly raised concerns in December, stating that the gazetted documents available to the public diverge from what legislators debated and approved. Dasuki accused the Clerk of the National Assembly of failing to produce the harmonized and certified versions, fueling suspicions that the executive may have unilaterally altered clauses after parliamentary passage, thereby breaching legislative rights.

Former Vice President Atiku Abubakar escalated the criticism, labeling the alleged alterations a “brazen act of treason” and “a direct assault on Nigeria’s constitutional democracy.” In a press release, Atiku contended that substantive, unauthorized changes were made to the tax legislation post-National Assembly approval, violating Sections 4 and 58 of the 1999 Constitution. He highlighted several provisions he claimed were illegally inserted, describing them as unconstitutional and anti-democratic. These included the granting of “new coercive powers without legislative consent” to tax authorities, such as arrest powers, the ability to seize property and garnish assets without court orders, and the authority to conduct enforcement sales without judicial oversight. Atiku argued that such measures transform tax collectors into "quasi-law enforcement agencies," stripping Nigerians of due process protections deliberately included by the National Assembly.

Furthermore, Atiku accused the government of imposing harsher financial obligations on citizens and businesses. He cited a mandatory 20 percent security deposit required before taxpayers can appeal assessments, the introduction of compound interest on tax debts, quarterly reporting requirements with lowered thresholds, and forced United States dollar computation for petroleum operations. According to Atiku, these provisions create financial barriers for ordinary Nigerians challenging unjust assessments and significantly increase compliance costs for businesses already grappling with a difficult economic environment. He also pointed to the alleged removal of crucial accountability provisions, including quarterly and annual reporting obligations to the National Assembly, requirements for strategic planning submissions, and ministerial supervisory controls, asserting that this insulates the government from oversight while expanding its powers, a characteristic of authoritarian governance.

The concerns were echoed by Ìgbìnmó Májékóbájé Ilé-Yorùbá, a socio-cultural organization, which warned citizens to prepare for widespread hardship and heightened insecurity from 2026. In a statement, the group accused the Tinubu administration of planning to deploy a "forged" tax law to seize Nigerians' properties without judicial oversight. They specifically highlighted the alleged removal of a legislative safeguard that mandated tax authorities to obtain a court order before seizing or selling assets over tax liabilities. The group claimed the gazetted version goes as far as stating that courts cannot review administrative decisions of tax offices regarding asset seizures, calling it "dangerous, unconstitutional, and authoritarian" and a direct attack on the rule of law. They warned that unchecked administrative powers would foster abuse, intimidation, and politically motivated seizures, crippling small and medium-scale enterprises already struggling under economic pressures.

Both opposition politicians and civil society groups have strongly condemned the rapid rollout and the January 1, 2026, deadline as "arbitrary and reckless," accusing the administration of attempting to railroad a multi-trillion-naira restructuring without transparency. Warnings have been issued about the potential for deepened regional economic inequality and the concentration of revenue powers in the Presidency. Business owners fear a compliance crisis, noting that banks are already preparing to enforce new rules requiring Tax Identification Numbers for all taxable Nigerians for account access. The Ìgbìnmó Májékóbájé Ilé-Yorùbá group questioned the moral basis of aggressive tax collection when citizens perceive little benefit from public revenue, pointing to dilapidated amenities, millions of out-of-school children, and poorly paid public sector workers, contrasting this with politicians seeking medical care abroad using public funds.

Despite the mounting backlash, the Nigerian government has continued to deny any wrongdoing, dismissing the allegations as politically motivated. Taiwo Oyedele reiterated that there is "no going back" on the enforcement plan, although he added that the government is "ready to work with the National Assembly to address concerns"—a statement analysts interpret as an indication of Abuja's scramble to manage the burgeoning scandal as the deadline approaches. Atiku Abubakar called for an immediate suspension of the tax law's implementation, a thorough investigation, rectification of illegal alterations through proper legislative processes, and accountability for those responsible. He also urged the judiciary to strike down unconstitutional provisions and civil society groups to resist what he termed "an assault on democratic principles." Similarly, Ìgbìnmó Májékóbájé Ilé-Yorùbá demanded a thorough investigation into the alleged forgery, emphasizing that it is a grave criminal offense and calling for the identification, arrest, and prosecution of those involved, even acknowledging presidential immunity but insisting on legal consequences for officials who carried out the act.