The Companies Income Tax Act in Nigeria serves as a pivotal legislation regulating the taxation of companies operating within the country. It commences by outlining the scope and applicability of the tax, including the definition of taxable entities and the determination of taxable income. The Act establishes the rates and procedures for computing and remitting corporate income tax, specifying allowable deductions, exemptions, and incentives. Additionally, it addresses compliance requirements, such as filing deadlines, documentation, and record-keeping obligations. Enforcement mechanisms, penalties for non-compliance, and dispute resolution procedures are also integral components of the Act. By providing a comprehensive framework for corporate taxation, the Companies Income Tax Act plays a crucial role in revenue generation and fiscal governance in Nigeria.