Purpose: This study aims to investigate the influence of applying IFRS on European companies’ profitability. The research focuses on adopting the new IFRS 16, specifically the accounting treatment of leases. The new standard introduces revolutionary changes in the treatment of leasing contracts. Many companies have moved away from IFRS, so it is essential to check the impact of IFRS on other companies. Design/Methodology/Approach: The study includes an analysis of two periods, before and after implementing IFRS 16 (leasing). In the study, we focus on specific sectors of economic activity. We examine the distributions of individual variables and compare the medians using parametric and non-parametric tests. The survey results indicate whether the implementation of IFRS 16 negatively affected the results of the companies. Findings: The study proves that adopting new IAS 16 related to leases does not negatively influence companies’ profitability than the previous treatment of this financial position within financial statements. This study confirms that European companies improve profitability by adopting new modifications of the IAS 16. Practical Implications: The study represents a motive for managers to accept new accounting treatments of leases that will create tangible value and generate further economic benefits. Originality/Value: We examined companies implementing new assumptions for the recognition of leasing. Contrary to the numerous voices of practitioners pointing to the negative effects of the implementation of IFRS 16, we showed that the implementation of IFRS 16 did not significantly change the profitability of companies. Thus, it can be indicated that the primary objective of introducing IFRS 16, to organize the recognition of company assets, has been met.