Today my 12-year-old son asked me how much daddy makes. How do I have this convo with him? How much do I disclose?

that's alright - kids are inquisitive, and it is alright for your child to ask such questions. ask your child why this is important and how this info will help. you don't have to disclose the exact amount of course. just explain to him also that money is not always everything, though it is important.