If you are a parent or guardian of a child aged 5 to 15 years, you’ll need to provide the same information online as you do to register as an adult – name, address, date of birth and contact details. However, you’ll also need to provide a passport-style digital photograph of them for their smartcard. Make sure when registering for a Child Key Smartcard, you enter your child’s details for an online account.
To complete a child’s registration, you must also verify the child’s age at any Gatwick Express, Great Northern, Southern or Thameslink ticket office along with proof of identification, such as a passport or birth certificate.
Please note, child Keycards do take longer to issue than adult cards due to the extra steps involved in the process as stated above.
If your child is 16 or over, please apply for an adult card.
Once a child smartcard has expired, an adult smartcard will need to be applied for by the person named on the smartcard. Please contact customer services who can action this request on your behalf.
More information about your online account is available here