Abstract: Errors in English as a foreign language (EFL)/English as a second language (ESL) writing are vital issues in assessing the students’ language competency level in any educational setting. Error-free writing is imperative because a writing piece shows the writer’s original thought if it is error-free. This study attempted to find the common errors in EFL writing of higher secondary level students in Bangladesh. The study mainly focused on the errors they made in their writing related to grammar and mechanics. This descriptive study was conducted during the period from January 2020 to February 2020. All the 80 participants of this study were Higher Secondary Certificate (HSC) level students; amongst them, 40 were from the rural, and another 40 were from the urban area colleges located in the Mymensingh district of Bangladesh. The researcher gave the students a short composition writing test, and written documents were analyzed using content analysis to elicit data. The researcher found that most students made frequent mistakes in subject-verb agreement, linkers, articles, and punctuation marks. Incomplete sentences and spelling were two other types of errors that were produced mainly by the rural students.
Keywords: EFL writing, grammar, mechanics, Errors, HSC level