This study aimed to examine the psychometric characteristics of the Arabic version of the Teacher Efficacy for Inclusive Practices (TEIP) scale. Data were collected from 432 participants in Saudi Arabia--185 in-service and 247 pre-service teachers. A statistical analysis was conducted using the following methods: Confirmatory Factor Analysis (CFA), Exploratory Factor Analysis (EFA), misfit analysis via Rasch modelling, and reliability Cronbach's alpha coefficients. Good internal consistency coefficients were obtained for the TEIP scale and each of its three subscales (>0.8). Acceptable fit indices were obtained from the confirmatory factor analysis (CFA) for a scale with 18 items in three subscales: inclusive instructions, collaboration, and managing behaviour. In conclusion, the Arabic version of the TEIP scale is valid with Arabic samples and preserves the psychometric properties and the structure of the original scale in order to measure teachers' self-efficacy working in inclusive classrooms. Recommendations for rephrasing some items are also discussed.