Tax experiments have been gaining popularity in the world in recent years. However, in most countries, as in the Russian Federation, there is no formally defined approach to experimental regulation. The process, results, and approach of many experiments are controversial in the scientific community. Based on history, it is possible to determine both the general elements of experiments and the attitude of governments to them, and the signs that influenced the effectiveness of such experiments. In most of the examples reviewed from several countries, the experiments were conducted using almost the same template. Based on the analysis of the history of individual tax experiments, the author draws conclusions about the presence of positive and negative factors common to different countries that affect the effectiveness of conducting, as well as the presence of modern problems and possible ways to solve them.