Documents for Tier-1 Dependent Extension

[Yash001]

Hi All,

Need help and guidance from seniors of this forum. Recently My Tier-1 Visa was successfully extended and now I want to apply for my wife and my son (3 Yrs and 4 months old) 2nd Visa extension. Currently both of them hold Tier-1 Dependent Leave to Remain Visa. I am planning to submit following documents as part of their application

1. Bank Statement (which includes my wife name) to show 90 days of the Maintanence Fund for my wife and son
2. Marriage Certificate
3. Son's Birth Certificate
4. My Passport and BRP Card
5. Council Bill which includes my wife name

Do I need to submit any other document as part of their visa application?

Appreciate if seniors of this forum guide me on this.

Regards,
Yash

Note-I am operating through my own limited company.