I have around 10k worth of company shares from a previous share save with my old employer. The value has been pretty static for a while now so I am keen to sell and put the money in a stocks and shares ISA. I'm a higher rate tax payer although still under 60k so claim partial child benefit. Would the tax bill and child benefit impact mean the isa isn't worth doing? I'm confused about what is actually be charged to liquidate the current share holding. Any advice would be much appreciated.