Idaho Child Support Calculator

Idaho uses the income shares model. Idaho uses the Income Shares Model under Idaho Rule of Family Law Procedure 126 (Idaho Child Support Guidelines). The combined gross monthly income of both parents is used to determine a basic child support obligation from a guidelines schedule table. That obligation is then divided between the parents proportionate to their respective incomes. Adjustments are made for health insurance premiums, work-related childcare costs, and extraordinary medical expenses exceeding $250 per child per year. A parenting time credit applies when the non-custodial parent has overnight parenting time for at least 25% of the year (approximately 91 nights).

Gross income from all sources is typically used, including wages, salary, bonuses, commissions, self-employment income, rental income, investment income, Social Security benefits, unemployment benefits, and disability benefits. Courts may also impute income if a parent is voluntarily unemployed or underemployed.

Child support in Idaho generally continues until the child turns 18, or through high school graduation if the child is still in school. Some orders extend to age 19 or 21 depending on the state and circumstances (college support, special needs).

Yes, child support orders in Idaho can be modified when there is a substantial change in circumstances. Common reasons include significant income changes (job loss, promotion), changes in custody arrangement, changes in the child's needs, or changes in healthcare costs.

Idaho has enforcement mechanisms including wage garnishment, tax refund interception, license suspension (driver's and professional), bank account levies, contempt of court charges, and reporting to credit bureaus. Failure to pay can result in fines and jail time.