When I can apply for my family British nationality

[sajnan]

Hi my wife and 4 kids received their ILR approval yesterday 01/07/2024. My 2 eldest children are over 18 years. My question is when my family can apply for British nationality. As someone told me that my wife and 2 children under 18 can apply anytime now but the 2 over 18 have to wait for a year before they can apply for British citizenship.
Could you tell me is there any specific form and for my 2 youngest children whether we have to add them to their mother application or we have to apply on a separate form for every one

Thank you in advance for your help

[secret.simon]

my wife and 2 children under 18 can apply anytime now but the 2 over 18 have to wait for a year before they can apply for British citizenship.

If you are a British citizen, that would be correct.

Your two children over the age of 18 would need to meet all the same naturalisation requirements as any adult; 1 year after ILR, English language test, LITUK test, meet the absence and physical presence requirements, etc. And each would need to submit a separate application. As they are both adults, Form AN for both of them.

[contorted_svy]

2 youngest children can apply online with their mother. At the end of her application she will be asked if she wants to add other applicants, the form will adjust to form MN1 automatically once you declare that the subsequent applicants are under 18.