Zakat in jurisprudence is a certain amount of wealth of the rich, which is undertaken under certain conditions to realize certain goals and objectives of the society, in accordance with certain priorities at the discretion of the legal guardian. The Zakat Law of the I. R. I. was approved by the Islamic Consultative Assembly and approval of the Guardian Council in seven articles in Oct. 2011. The current Law lacks a public tax approach, and relying on individual jurisprudence seeks to encourage people to pay Zakat and revive it. This Law has several shortcomings in terms of method, structure and content. A comprehensive, complete and firm Law has certain requirements. The comprehensive and firm proposed Zakat legislation should pay attention to the principles of public finance and special cultural, social, economic, or political-security objectives, which was considered by the Legislator in setting Zakat, in addition to paying attention to the rules of governmental jurisprudence and the relevant governance principles of Zakat. While clarifying the requirements of the governmental jurisprudence and the rising requirements from the Zakat legislation targets, and sing the method of deducing the theory of Islamic economics and with the general public tax approach in Islam, this paper proposes a Law in 12 articles.