Hi sakeden,
As the first £30k of your Redundancy Payment is tax free, it should not affect your Adjusted Net Income.
Any amount received over the £30K limit would be classed as taxable income, and affect your ANI accordingly.
If you have paid any tax on your £30K redundancy payment, and would like us to check if you are entitled to a rebate, contact us here:
Income Tax: general enquiries
Thank you.