Sydney
re your comment that I have further separated out:
"Leaving him is not really an option as I have children with him and don't want to put my kids though that"
See my previous response. I would additionally add these situations do not improve any and once your eyes are further opened you cannot unsee what he is doing to you all here. Its a harsh and fast learning curve.
" but I would love some advise on what I can do because he's made it clear and his counter argument is oh I don't ask yours and never have and won't ask but that's not the issue."
Leave is my counsel to you; there is really no other option. If you consider counselling GO ON YOUR OWN. Certainly do not do any form of joint counselling with him; it is not recommended in these situations. He's being deliberately obtuse; I would think he knows precisely what you earn because he is in full control of the finances.
"I don't know how else to get him to understand where I am coming from and that it should just be natural for him to share what he bloody gets as I openly share".
You will never get him to understand as this is who he really is; a secretive and in addition a financially controlling individual. These types never want to share.
"I am not after his money and can look after myself but it's just common logic and decency"
I can well imagine you've had to learn and learn fast how to budget money effectively for you and your kids. Your point of view is irrelevant to him and so he further stonewalls and otherwise dissuades you; itself abusive actions.
I sincerely hope you can and will find it within yourself to be free of him and his power and control of you all.