In response to the international trend towards full adoption of International Financial Reporting Standards (IFRSs), Financial Supervisory Commission (FSC) of Taiwan requires that public companies should issue their financial statements in accordance with Taiwan-IFRSs starting from 2013. As for private companies, sole proprietorships and partnerships, ongoing amendment of relevant laws and regulations, as well as compile consensus of Generally Accepted Accounting Principles (GAAP) development direction. Therefore, this study focus on the accounting principles for private companies and explorate the development of the Business Entity Accounting Act. This thesis also analyze the appropriateness of the direct use IFRSs for SMEs based on the in-depth export interviews.