From Citi:

Annual Income:
For example, current or reasonably expected salary, wages, bonuses, tips, commission. Please note that alimony, child support or separate maintenance income need not to be revealed if you do not wish to have it considered as a basis for repaying this obligation.


Other Annual Income:
For example, annual amounts from interest or dividends, social security or retirement benefits, rental income, alimony, child support or separate maintenance payments.<br />
Please note that alimony, child support or separate maintenance income need not to be revealed if you do not wish to have it considered as a basis for repaying this obligation.