Benefit in Kind, Lease Cars and Childcare Vouchers

ELL2018

I work in the NHS. And remain in an EdenRed Childcare voucher scheme - which is a benefit in kind. However I have noticed that I have a persistent surplus in my voucher account, as my child is now at school, so I don’t need the same level of childcare when he was younger.
I am now considering a Work Lease Car scheme, which is also a benefit in kind.
Obviously my pension will take a bigger hit with a salary sacrifice lease car. 

I am wondering, if it is worth me reducing my childcare voucher benefit in kind contributions, by 1/2, not stop it all together, just reduce. 

Would my pension contribution take less of a reduction if I did this, plus any money I save on fuel for a new EV car, the cost saving could I place that 8th my NHS pension as extra contribution. So juggle my benefits in kind around, so my pension doesn’t take as big a hit.
Thoughts ?

whizzywoo

You have posted your question in the Welfare Benefits part of the forum.

You are more likely to get some answers if you post in the Cutting Tax Section which all about income tax etc.

https://forums.moneysavingexpert.com/post/discussion/cutting-tax