To identify teacher candidates' needs for training in inclusive classroom assessment, the present study investigated teacher candidates' beliefs about inclusive classroom assessments for all students educated in regular classrooms, including those with special needs and English language learners. An innovative theoretical assessment model, consisting of four concepts of assessment for, as, of learning as well as accommodations and modifications, was built to compare with questionnaire responses from a group of Canadian teacher candidates (n ¼ 295). Our data yielded five factors: (1) beliefs about accommodations and modifications for students with diverse needs (ACC), (2) assessment of learning, (3) assessment as learning, (4) misconceptions of inclusive assessment, and (5) negative beliefs about assessment for learning (NAFL). Contrary to expectations, assessment concepts are not fully interrelated with each other in teacher candidates' belief systems. In addition, participating teacher candidates may have some misconceptions about inclusive assessments given that they possessed positive beliefs towards them. The implications for teacher education programmes and professional development were also discussed in this study.