Sometimes, items such as a car allowance can be used to supplement or increase your income. Usually there will need to be a steady history of the car allowance and your employer may have to indicate that your car allowance should and will continue.

Child support can be figured as income if you have been receiving it for at least 12 months and it will continue on for an additional 2 years. You must be able to show proof of the support payment such as bank statements or cancelled checks.

Social Security can be used as a form of non W2 income to qualify for a mortgage loan. In order to use Social Security as income it has to be continued for at least the next 3 years.