The main purpose of this research is to investigate the effect of international financial experience of managers on tax avoidance of companies listed on the Tehran Stock Exchange in the four-year period between 2016 and 2019, which is based on the sampling method of systematically removing 100 companies as a statistical sample Was considered. This research is in the group of longitudinal and post-event research in terms of its purpose, application, and data collection method, and multiple regression models using Eviews10 software and statistical tests were used to check the hypotheses. The findings of the present research are as follows, based on the first model, the experience of international bank receipts for receiving taxes with cash/obligation/permanent difference attitudes has a positive and significant effect, and in the second model, the experience of testing and tax care products with cash/obligation/permanent difference attitudes has a significant effect. And in the third model, the experience of buying/selling foreign currency of tangible fixed assets of managers has a significant effect on paying taxes with cash/obligation/permanent difference attitudes.