Unifying the budget accounts in accordance with the financial accounting system and their compatibility with international accounting standards

International accounting standards improve comparability between companies, thereby reducing investor risk and facilitating cross-border financing and investment. It also reduces the cost of preparing consolidated financial statements for multinational companies. Thus, this work reviewed 15 articles among different countries about the role of IAS in unifying budget accounts with accordance with financial accounting system. The findings reveal that most of the reviewed articles recommend that IAS can play a significant role on the mentioned mission. Although, the existing IAS still need to improvement and changes based on the accounting development.