Questions re Adjusted Net Income and Capital Gains Tax

Question 1) If I pay into a workplace nursery scheme through salary sacrifice this reduces my taxable income - how does this affect adjusted net income? Question 2) My workplace offers a five year Share Incentive Plan which vests in the 24/25 current tax year. I intend to sell the shares on the day they vest. Does this contribute to my adjusted net income for the tax year and if so what portion is liable. Question 3) In the above scenario am I liable to pay Capital Gains Tax if I sell the shares on the day they vest?

Hi,
1. please refer to:
Personal Allowances: adjusted net income     
2. No this is not taken into account  
3. No
Thank you.