International Program for Islamic Economics and Finance (IPIEF) of Universitas Muhammadiyah Yogyakarta has a vision to become a leading international program in ASEAN by 2021. So, the IPIEF students are expected to be fluent in English both spoken and written. Therefore, in order to enhance the fluency, English is a compulsory subject should be taken by the students.The research aims to describe the form of grammatical errors made by IPIEF students batch 2017 of Universitas Muhammadiyah Yogyakarta using Surface Strategy Taxonomy.