Question about IHS payment when switching Dependent to SWV

Hello redditors,

I came to UK on T2 SWV in November 23, my wife and I are both in IT. My wife and kid as my dependents. All good - settled. Now my wife got a very well paying sponsorship job as which we are going to apply shortly. I might have to return to my previous employer by the end of this year in Middle East.

Question are, 1- do the kids need to transfer as dependents on their mother visa? 2- do i NEED to transfer as dependent as well by the end of this year? Will my ILR clock reset? 3- we have paid 3 year IHS per person already. Do my wife and kids need to pay IHS again now? If yes, what about the previous payments we made? If no, how does it work?

What is the best scenario for us. Thank you in advance.