The GOV.UK website adds ... 88.50 to renew an adult passport online and £100 to renew an adult passport by post. Passport application forms should be available from your local Post Office.

If you are planning on travelling abroad while your passport is being renewed, you will want to check the rules and regulations.

Here's all the information you need on how to renew a child's passport in the UK. A child's passport can ... and 9 of the form. Your child needs to sign section 6 if they’re 12 or over.