Quick answer: a slight natural expression may be fine in some workflows, but a broad smile is a bad bet for a passport photo. The safest approach is a calm, neutral look with your mouth closed and your facial features fully visible.

The keyword can you smile in a passport photo shows up when people are already taking the photo and do not want to look robotic—but also do not want a rejection over something avoidable.

Quick answer

If you want the safest answer, do not smile broadly. Keep your mouth closed, relax your face, and look directly at the camera. The goal is not to look unhappy. The goal is to look stable, recognizable, and easy to match to your face later.

Think of it as “neutral but human,” not “expressionless like a passport mugshot.”

Why expression matters

Passport-style photos are used for identification, so consistency matters more than charm. If a smile changes the shape of the cheeks, narrows the eyes, or shows teeth prominently, it can make the face less stable for document review.

That is why expression rules tend to be conservative. Authorities want a straightforward face, not a social-media-friendly portrait.

What kind of smile becomes risky

The risky version is not a tiny relaxed expression—it is the visible smile that changes the face. Here is where people usually cross the line:

• teeth showing clearly
• cheeks lifting strongly
• eyes narrowing
• head tilting because the expression feels more “natural” that way

Once that happens, the photo starts looking posed instead of document-ready.

How to look natural without looking stiff

The easiest trick is to relax your jaw, keep your lips gently closed, and think of looking attentive rather than cheerful. You do not need a dead face. You need a steady face.

It also helps to take several versions in a row. People often force the first neutral expression and end up looking tense. By the second or third photo, the face usually settles into something more natural and more usable.

After capture, you can upload the cleanest version to IDPhotoBy so the technical part—crop, background, and framing—is handled separately from the expression itself.

Mistakes people make when retaking the photo

The most common mistake is overcorrecting. Someone hears “don’t smile,” then swings too far in the other direction and looks tense, angry, or awkward. Another common mistake is pairing a neutral expression with poor posture, which makes the photo feel unnatural for a different reason.

The fix is simple: keep the head straight, shoulders relaxed, and expression calm. Neutral does not mean frozen.

Bottom line

If you are asking whether you can smile, the safer question is whether you should. For a passport photo, the strongest answer is still: keep it neutral, keep it relaxed, and do not let expression become the reason the image gets flagged.