The Federal Government issued guidelines for the transition to the new tax regime that took effect on January 1, 2026. The document provides a framework for managing transitional issues while ensuring that the new laws are not applied retrospectively. According to tvcnews.tv, the Federal Ministry of Finance released the General Guidelines for the implementation of the Tax Acts 2025, and the guidelines provide direction to taxpayers, tax practitioners, revenue authorities and other stakeholders on the administration of tax matters during the shift from the old regime to the new legal framework. A statement on the guidelines was made by Efe Ovuakporie, Director of Press Relations at the Federal Ministry of Finance, on Thursday, June 18, 2026.