My tax return is asking for the dollar amount on my son's tax return from form BC428. However, when I go to my son's return there is NOTHING about this form there.

I tried to search for the form as well (in turbo tax) but no results

Getting started

When you go through the Provincial section of your son's return, at the end it will show a summary that includes the amount of British Columbia non-refundable tax credits. 

 

Or, you can you can look at the PDF archive of your son's return to see the BC428 form.