This app will calculate in the part surrender calc the amount which is tax free. It does this by adding 5% (you can change this percentage if you like) but most bonds use 5% a year tax.
If you need to see the full surrender gain which is taxable the select this option.
All you need to do is enter the Bond details (Start date , Premium etc) , add withdraws and top-ups.
You are then ready to see the part surrender or full surrender taxable amounts.
It will save your input so you don't need to keep inputting the same data as with a spreadsheet.
This is a guide only and should not be taken as evidence in law etc.