The lifestyle of human beings is shaped according to the requirements of the age in which they live. Today, especially with the acceleration of technological developments, the lifestyle is changing much faster than in the past. Our economic habits are also affected by the changing lifestyle. In this study, today’s economic habits are evaluated in the context of Ahlâk-ı Alai, the famous book of Kınalızâde Ali Çelebi, who was an Ottoman scholar in the 16th century. While making the evaluation, the principles related to consumption, savings and investment under the title of İ􀇚lm-i Tedbir-i Menzil were compared with today’s consumption, savings and investment habits. As a result of the comparison, significant differences were observed especially in consumption habits. Consumption habits have evolved from obligatory and necessary expenditures for the continuation of life to consumption habits for socio-cultural and psychological purposes, and consumption for purposes such as fashion, luxury consumption, social status, and stress relief has brought to the fore the waste and ostentatiousness that should not be in consumption habits. In terms of investment, it is seen that investment instruments in financial markets are preferred more than real markets. In the context of Ethics, there are studies such as ethics, family, education, economics, state philosophy, politics, management, international relations. However, these studies examined were limited to reflecting the economic principles in the book of Ahlâk-ı Alâi. Our study aims to contribute to the literature as an original study in terms of comparing today’s economic habits in the context of Ahlâk-ı Alâi.