Yes you do. Gross income includes "Expense reimbursements or in-kind payments received by a parent in the course of employment, self-employment, or operation of a business if they are significant and reduce personal living expenses."
Yes, they can and will be used in calculating your income and ultimately in determining the child support amount.
The information provided in this answer does not create an attorney-client relationship. If you are interested in his legal services, feel free to call Chris at (303) 409-7635 at his law office in the Denver Tech Center. All initial consultations are free of charge.