OKLAHOMA Part 54

For the self-employed, gross income is defined as "gross receipts minus ordinary and necessary expenses required for self-employment or business operations."

The Oklahoma Child Support Guideline Schedule is used to determine the parents' base child support. The schedule is based on the combined income of both parents and the number of children in the household. Each parent's percentage share of the combined gross monthly family income sets that parent's percentage share of the base child support obligation. The parent who is not the primary custodian of the child generally becomes the "obligor," and pays the primary custodian his or her share of the base support.

The actual medical and dental insurance premiums for the child are allocated between the parents in the same proportion as their adjusted gross income and added to the base child support obligation.