Idaho Child Support Calculator
Calculate child support in Idaho using the state's official Income Shares Model. Includes custody adjustments, health insurance credits, and childcare deductions.
Idaho divorces typically cost 52% less than the national average of $12,900.
Child Support in Idaho
- Formula
- Income Shares Model
- Income cap
- None specified
- Equal parenting presumption
- No
- Property system
- Community property
Child Support Calculator in Idaho: What You Should Know
Idaho uses the Income Shares Model under the Idaho Child Support Guidelines, combining both parents' gross incomes to set the basic support obligation. That obligation is then divided between the parents in proportion to their incomes, with adjustments for health insurance, work-related childcare, and significant shared parenting time. Idaho's guidelines reduce support when a parent has the children for more than a set share of overnights. There is no statutory income cap, so above the guideline schedule the court uses its discretion.
Key point: Idaho follows the Income Shares Model, prorating a combined-income obligation between the parents and adjusting for substantial shared parenting time.
Tell us the basics
Locked to Idaho on this page.
Use your gross (before-tax) monthly income. If you are paid annually, divide by 12.
Use their gross (before-tax) monthly income. If they are paid annually, divide by 12.
This estimate is for planning purposes only and does not constitute legal or financial advice. Consult a licensed family law attorney in your state for guidance specific to your situation.
Child Support in Idaho - Frequently Asked Questions
How is child support calculated in Idaho?
Idaho uses the Income Shares Model to calculate child support. Both parents' gross incomes are combined, and each parent's share of the total obligation is proportional to their share of the combined income.
Can child support be modified in Idaho?
Yes. Either parent can request a child support modification if there has been a substantial change in circumstances, such as a significant change in income, change in custody arrangements, or changes in the child's needs. Courts in Idaho typically require a change of at least 15-20% in the support amount to justify modification.
Does custody arrangement affect child support in Idaho?
Yes. Parenting time is a significant factor in child support calculations. When a parent has the children for a substantial portion of time (typically 40% or more overnights per year), child support is adjusted to reflect the additional direct costs that parent bears.
Is there an income cap for child support in Idaho?
Idaho does not set a specific income cap in its child support formula. However, courts have discretion to deviate from the guideline amount in cases with very high incomes.
How long does child support last in Idaho?
Child support in Idaho typically continues until the child turns 18 or graduates from high school, whichever is later. Support may continue longer if the child has a disability or if the parents agree to extend support for college expenses.
This estimate is for planning purposes only and does not constitute legal or financial advice. Consult a licensed family law attorney in your state for guidance specific to your situation.