both are used, as this [1] points out, the "estar" vs "ser" depends on what aspect you want to highlight. "estoy casado" highlights the fact that you weren't be

both are used, as this [1] points out, the "estar" vs "ser" depends on what aspect you want to highlight. "estoy casado" highlights the fact that you weren't before, and "soy casado" highlights the fact that you are now. [1] https://www.spanishdict.com/answers/229597/soy-casado-o-estoy-casado https://www.spanishdict.com/answers/229597/soy-casado-o-esto...