Yes — you can smile in a US passport photo. The United States is one of the only major countries in the world that allows this.
The official State Department wording: "A natural smile is acceptable." This is a significant departure from most other passport-issuing nations, where neutral expression is mandatory.
What Does Natural Smile Mean for US Passport Photos?
The guidelines are deliberately vague. "Natural smile" is not quantified. But practical interpretation suggests:
- Mouth can be open or closed — both are acceptable
- Teeth showing is fine — but not required
- Eyes should be open — a genuine smile crinkles the eyes anyway
- Expression should feel real — not forced or exaggerated
Think of the moment someone calls your name and you turn toward them with genuine recognition. That's the expression that passes.
Get a compliant passport photo online
What Smiles Get Rejected in US Passport Photos?
The system flags expressions that appear:
- Forced or fake — the software detects unnatural muscle tension
- Too extreme — a full-on grin might raise eyebrows
- Asymmetrical — one side of mouth higher than the other significantly
- With tongue visible — this is rarely flagged but occasionally causes issues
In practice, most people's natural smile passes without issue. The US system is more permissive than any other major country.
Why Does the US Allow Smiling in Passport Photos?
The US is somewhat unique in its approach. Most countries adopted stricter standards after the ICAO introduced biometric passport requirements in 2015. The thinking: neutral expressions produce more consistent facial recognition results.
The US, however, maintained its more lenient policy. The theory is that the slight variation introduced by a natural smile doesn't significantly impact facial recognition accuracy, while the warmer, more human passport photo provides a better user experience.
Critics argue this creates security risks. Supporters say it's a small quality-of-life improvement that doesn't compromise safety.
US Smile Rules vs Other Countries
| Country | Smile Allowed |
|---|---|
| United States | Yes — natural smile |
| United Kingdom | No — neutral only |
| Canada | No — neutral only |
| Germany | No — neutral only |
| Australia | No — neutral only |
| France | No — neutral only |
| Japan | No — neutral only |
The US stands alone among major economies. If you hold dual citizenship and need photos for another country's passport, do not assume your US-smile photo will work elsewhere.
Will a Slight Smile Pass in a US Passport Photo?
Yes, almost certainly. The automated system is calibrated for the US market. It expects smiles. It has processed millions of smiling passport photos. The human reviewers also expect smiles.
There's a caveat: some acceptance agents (the people at post offices who accept your application) are more particular than others. If you encounter a strict agent, they might flag your photo for "expression not neutral" even though it's technically compliant.
But this is rare. The system generally accepts what you submit. If you're worried about a particular acceptance agent, you can always go neutral — neutral expression is universally accepted everywhere, including the US.
Neutral vs Smile: Which Expression for US Passport Photos?
You have a genuine choice. Here's how to decide:
- Choose smile if you want a warmer photo, if you photograph well smiling, or if this is purely a US passport.
- Choose neutral if you also need photos for other countries, if your smile looks forced on camera, or if you want maximum acceptance certainty.
Both are equally valid. The State Department does not prefer one over the other.
Tips for a Good Smile in Your US Passport Photo
A passport photo lasts 10 years. You'll look at it repeatedly. Here's how to smile well:
- Think of something pleasant — a memory, a joke, your pet
- Let it reach your eyes — a genuine smile engages the whole face
- Keep it natural — don't hold a smile for the camera, let it happen
- Don't overthink it — the more you try to "smile right," the more forced it looks
The goal is looking like yourself on a good day, not a dental ad.
Common US Passport Photo Smile Questions
Can I show teeth?
Yes. Teeth are acceptable. Many US passport photos show teeth. It doesn't automatically cause rejection.
What about laughing?
A full laugh might be too much. Keep it to a gentle smile.
Do I HAVE to smile?
No. Neutral expression is also perfectly acceptable. Smiling is allowed, not required.
What if I'm a serious-looking person?
A natural smile on a naturally serious face might look forced. That's okay. The key is authenticity.
Will a smiling photo cause issues at the airport?
No. The biometric data in your passport is about face geometry, not expression. The photo is for human verification. Smiling or not, you'll pass through automated gates just fine.
Can Babies and Children Smile in US Passport Photos?
The smile rule applies to everyone — including babies.
But realistically, newborns won't smile. Infants might smile but have their eyes closed. Toddlers are unpredictable.
The same leniency that applies to baby expression in general applies to smiling. If your toddler smiles naturally in the photo, great. If they give a neutral stare, that's fine too.
US Dual Citizens: Smile for One Passport, Neutral for the Other
If you hold both a US passport and a passport from another country, you need different photos:
- US passport: Smile is fine
- UK, Canada, Germany, France, Australia, Japan, India, China, Brazil: Neutral expression required
The safest approach: take your photos with a neutral expression for the stricter country first, then take a separate smiling photo for your US passport. A neutral photo works for the US too (neutral is always accepted), but if you want to smile in your US photo, take it separately.
US Passport Photo Specifications Summary
For the complete picture, the US passport photo requires:
- Size: 2×2 inches / 51×51mm (600×600 pixels at 300 DPI)
- Background: White (#FFFFFF)
- Expression: Natural smile allowed (neutral also accepted)
- Glasses: Not allowed (banned since 2016)
- Head height: 1–1⅜ inches from chin to top of head
- Recency: Taken within 6 months
Note: while smiling is allowed, glasses are banned. The 2016 glasses ban was separate from the expression policy.
How Smiling Affects US Passport Facial Recognition
Some people worry that smiling in their passport photo will cause problems at automated passport control gates. It won't. TSA and CBP facial recognition systems at US airports (JFK, LAX, SFO, ORD, ATL, DFW, and others) are designed to match smiling faces to neutral faces and vice versa.
The technology has evolved significantly since the early biometric years. Modern systems handle expression variation with high accuracy. Your smiling passport photo won't slow you down at Global Entry kiosks or automated passport control.
Quick Checklist for US Passport Photo Expression
- Expression: natural smile OR neutral (both acceptable)
- No forced or exaggerated grin
- Eyes fully open
- No glasses (banned since 2016)
- White background
- No visible tongue
- Face fully visible, not obscured
Verify your photo with the passportsize-photo.online checker. For size specifications, see the US passport photo size guide. For full US passport rules, visit the United States hub.
