Many nations have imposed environmental taxes to boost green development since green development has become a worldwide movement. Using a descriptive survey research approach, this study examines the influence of environmental taxes on environmental sustainability in Anambra State. The researcher devised two study questions and collected data using a self-created questionnaire. The personnel of the Anambra State Internal Revenue Service, chosen using a purposeful random sample procedure, makes up the sample size. Fifty copies of the questionnaire were administered for data collection. The data collected was analysed using the mean, standard deviation, and t-test statistics. The study found that environmental taxes encourage energy conservation and the adoption of renewable energy sources; Also, environmental taxation might create cash for governments, allowing for the reduction of other taxes or the implementation of environmental initiatives. Generally, the tax must be legal, and the rate must be predictable in order to encourage environmentally-friendly activities. It was advocated that understanding the effectiveness of environmental taxes and levies in instilling beneficial environmental behaviour is also important for ensuring that environmental pricing policies are designed in accordance with environmental aims. This research offers a practical and promising perspective on the function of environmental taxes in green growth, and it has the potential to be used in other regions and nations.