This study investigates the impact of Family-Supportive Supervisor Behaviour (FSSB), work-life balance, job satisfaction, motivation, and job performance among married private employees in Indonesia. Data were collected online using Google Forms and analyzed using Structural Equation Modeling (SEM) with Lisrel 8.80 software. The results indicate that FSSB, job satisfaction, and motivation positively influence job performance. FSSB also positively affects motivation, and work-life balance and motivation positively influence job satisfaction. However, work-life balance does not significantly affect job performance. The study finds that motivation mediates the relationship between FSSB and job performance, and job satisfaction mediates the relationship between motivation and job performance. The research contributes to the literature by highlighting the positive impact of FSSB on motivation and job performance, particularly for married private employees. Companies can implement work-life balance policies to enhance job satisfaction, which in turn can improve job performance. The study has limitations, including a focus on private sector employees, a limited sample size, and regional distribution. Future research should consider additional variables and broader geographical areas.This study investigates the impact of Family-Supportive Supervisor Behaviour (FSSB), work-life balance, job satisfaction, motivation, and job performance among married private employees in Indonesia. Data were collected online using Google Forms and analyzed using Structural Equation Modeling (SEM) with Lisrel 8.80 software. The results indicate that FSSB, job satisfaction, and motivation positively influence job performance. FSSB also positively affects motivation, and work-life balance and motivation positively influence job satisfaction. However, work-life balance does not significantly affect job performance. The study finds that motivation mediates the relationship between FSSB and job performance, and job satisfaction mediates the relationship between motivation and job performance. The research contributes to the literature by highlighting the positive impact of FSSB on motivation and job performance, particularly for married private employees. Companies can implement work-life balance policies to enhance job satisfaction, which in turn can improve job performance. The study has limitations, including a focus on private sector employees, a limited sample size, and regional distribution. Future research should consider additional variables and broader geographical areas.