How can you find out ex- spouse income, without doing a Child support modification?

You can send a Request for Income and Expense Declaration after judgment. You are permitted to do this once a year. It’s a judicial counsel form. Here’s a link: http://www.courtinfo.ca.gov/selfhelp/family/famforms.htm Family Forms Best of luck to you. If you found this answer helpful, let me know by clicking the "thumbs-up" button at the bottom of this answer. It’s easy and appreciated. This response is intended to be a general statement of law, should not be relied upon as legal advice, does not create an attorney/client relationship and does not create a right to continuing email exchanges.