For a frequent traveller child’s passport, it will cost £59 online or £68.50 by paper form.
If you were born on or before September 2, 1929, your passport application is free either online or by paper form.
If you are looking to receive your passport urgently, you will have to pay a higher fee.
And if you are a British national overseas, you will also pay a different fee for your passport, and the Government website details how to renew a passport in these circumstances.