UK Child Passport Checklist
UK child passport applications are generally made online via GOV.UK. Children under 16 cannot hold a passport jointly with a parent — they need their own. A countersignatory (someone who knows the family and holds a UK passport) may be required for children who have not held a passport before or look noticeably different from a previous photo.
Quick answer
You generally apply online at GOV.UK, provide the child's birth certificate or citizenship proof, arrange a compliant passport photo (countersigned if required), pay the fee (currently £53.50 online), and confirm parental responsibility. The countersignatory must know the family and hold their own UK passport.
Documents you may need
- Online application via GOV.UK — applying online is the standard route and typically faster than postal
- Child's proof of British citizenship — birth certificate registered in the UK or a naturalisation/registration certificate
- Compliant passport photo of the child — must meet UK government photo guidelines (different from US specs); countersignatory must sign the back if the child has not held a UK passport before or looks noticeably different
- Countersignatory details — someone aged 18+ who has known a parent/guardian for at least 2 years, holds a valid UK passport, and is not a close relative; they confirm the photo is a true likeness
- Proof of parental responsibility — typically established by the birth registration; additional evidence may be needed for adoptive or step-parents
- Application fee — currently £53.50 for an online child application; check GOV.UK for current fees before applying
Common mistakes
- Photo not meeting UK size or background requirements — UK specs differ from US; the photo must be 35mm × 45mm with a plain cream or light grey background
- Not arranging a countersignatory when one is required — check the GOV.UK guidance to confirm whether your child's application requires one
- Using a countersignatory who is a close relative or does not hold a valid UK passport
- Applying by post when the online route is available — the online route is generally faster
Official sources
- Apply for or renew a passport (GOV.UK)
- Passport photo requirements (GOV.UK)
- Passport fees (GOV.UK)
- Countersignatory guidance (GOV.UK)
Last reviewed: June 2026
Frequently asked questions
- How do I apply for a UK child passport?
- Apply online through GOV.UK. It's the standard and fastest route for most children. A postal option exists but is slower.
- Does my child need a countersignatory?
- A countersignatory is needed if the child has never held a UK passport before, or if they look noticeably different from their last passport photo. The countersignatory must know a parent/guardian for at least 2 years, be aged 18+, hold a valid UK passport, and not be a close relative.
- What are UK passport photo requirements for children?
- The photo must be 35mm × 45mm, in colour, on a plain cream or light grey background, with the child facing forward, eyes open and clearly visible. UK specs differ from US — check the photo guidance on GOV.UK before printing.
- How long does a UK child passport take?
- The GOV.UK guidance says to allow up to 10 weeks. Check current processing times on GOV.UK before applying.
- How long is a UK child passport valid?
- UK passports for children under 16 are valid for 5 years.
This is a simplified guide. Passport requirements can change without notice. Always confirm the final documents, fees, photos, and application method on the official passport authority website before applying.