Basically, a headshot identifies the subject, with a portrait telling the viewer a bit more about the subject. For example, the photo used on a student’s school ID is a photo that identifies the subject. A headshot could be a portrait, but a portrait isn’t necessarily a headshot. The main difference is that a headshot is a professional portrayal of the subject for the intended use of the photo, while a portrait is an artistic portrayal of the person.
Put simply, the biggest difference between the two is the purpose. While a headshot is conservative in its style and aims to capture the portrait photo, the photo is an artistic portrayal of the person.
References:
- What Is The Difference Between A Headshot And A Portrait? – Just Headshots
- HEADSHOT VS. PORTRAIT: WHAT IS THE DIFFERENCE?