Income generally includes wages, salaries, commissions and tips; assets & business income; assistance & support (alimony, social security, child support, etc.) and military income. Check out our Lender Manual here for more details; income info starts on page 12:
http://www.calhfa.ca.gov/homeownership/bulletins/manual.pdf
Please also note that for purposes of income limits, CalHFA uses only the income of the person(s) who are qualifying for the first mortgage. We do not include the income of occupants who are not on the first mortgage.