"Why are you leaving your current role?" or "Why did you leave your last job?" comes up in almost every initial screening call, and it is a question where candidates frequently make avoidable mistakes.
The question serves a few purposes. Interviewers want to understand what you are looking for, assess whether you are leaving under problematic circumstances, and get a sense of how you talk about previous employers when they are not in the room.
The Two Main Mistakes
Speaking negatively about a former employer. Even if your reason for leaving is entirely justified, extensive criticism of your previous company, manager, or team creates concerns for the interviewer. They are thinking: will this person talk this way about us someday?
This does not mean you have to pretend everything was great. You can be honest about your reasons without making the previous organization the villain of your story.
Being vague in a way that raises more questions than it answers. "I'm just looking for something new" or "I felt like it was time for a change" are answers that invite follow-up. What changed? Why now?
Reasons That Land Well
Answers that focus on what you are moving toward rather than what you are escaping from tend to work better.
"The scope of my role has reached its ceiling at my current company. I've done what I came to do, and I'm ready for work that's more complex and more consequential. This role is the next step I've been building toward."
"The company went through a significant restructuring, and the team I joined no longer exists in the same form. I took that as a moment to think carefully about what I wanted to do next rather than default to whatever was available."
"I made a deliberate decision to prioritize moving into [field/function]. My current company doesn't have a path to do that, and I've been planning this transition for about six months."
All three of these are honest, forward-looking, and professional. None of them require you to criticize your current employer.
When the Real Reason Is Harder
If you were laid off, say so directly. "The company had a significant reduction in force" is a complete and professional answer that requires no elaboration unless the interviewer asks.
If you are leaving because of a difficult manager or work environment, frame it as a values or direction mismatch rather than a personality complaint. "The leadership style and culture at my current company turned out not to be a fit for how I work best" is honest without being a personal attack.