Idaho Child Support Calculator (2026)
Estimate your child support payments in Idaho using our free calculator based on the official ID Guidelines (IRCP 126). Enter your income details below to get an instant estimate.
Idaho Child Support Calculator
Based on Idaho's 2024 ID Guidelines (IRCP 126)
This is an estimate only. See our full disclaimer.
Key Facts: Child Support in Idaho
- Idaho uses the Income Shares model under IRCP 126, basing child support on both parents' combined gross income.
- The basic child support obligation for 1 child ranges from approximately $168/month at $1,000 combined income to $1,548/month at $20,000 combined monthly income.
- Each parent pays their proportional share of the total obligation based on their percentage of the combined gross income.
- Idaho includes adjustments for health insurance, work-related child care costs, and extraordinary expenses.
- Courts may deviate from the guidelines when strict application would produce an unjust or inappropriate result.
Source: ID Guidelines (IRCP 126) • Last verified: 2026-05-30
How Much Is Child Support in Idaho?
If you make $60,000 a year in Idaho, child support for 1 child is estimated at $606 per month ($7,272 per year) based on the ID Guidelines (IRCP 126). This assumes the other parent earns approximately $36,000/year. Actual amounts depend on both parents' incomes, custody arrangements, and additional expenses.
If you make $1,000 a week ($52,000/year) in Idaho, child support for 1 child is approximately $552/month.
Idaho Child Support Estimates by Income (2026)
| Annual Income | 1 Child | 2 Children | 3 Children |
|---|---|---|---|
| $40,000/yr | $463/mo | $626/mo | $729/mo |
| $50,000/yr | $539/mo | $729/mo | $849/mo |
| $60,000/yr | $606/mo | $819/mo | $954/mo |
| $70,000/yr | $663/mo | $896/mo | $1,045/mo |
| $80,000/yr | $715/mo | $967/mo | $1,127/mo |
| $100,000/yr | $804/mo | $1,087/mo | $1,267/mo |
| $120,000/yr | $877/mo | $1,186/mo | $1,383/mo |
Estimates assume the other parent earns 60% of your income. Actual amounts vary based on both parents' incomes, custody time, and adjustments. Compare all states →
How Child Support Is Calculated in Idaho
Idaho uses the Income Shares model to calculate child support obligations. This model combines both parents' incomes to determine the total child support obligation, then divides it proportionally based on each parent's share of the combined income.
Factors That Affect Child Support in Idaho
Important Notes for Idaho
- Idaho uses the Income Shares model, combining both parents' gross incomes to determine the total child support obligation.
- Each parent's share is proportional to their percentage of the combined gross income.
- Idaho considers additional expenses including health insurance, work-related child care, and extraordinary expenses for the children.
- The court may deviate from the guidelines when strict application would produce an unjust result.
Example Child Support Calculation in Idaho
Scenario: Parent A earns $5,000/month, Parent B earns $3,000/month, 2 children.
Step 1: Combined monthly income: $5,000 + $3,000 = $8,000
Step 2: Parent A's income share: $5,000 / $8,000 = 62.5%
Step 3: Look up basic obligation from the guidelines schedule for $8,000 combined income and 2 children.
Step 4: Multiply the basic obligation by Parent A's share (62.5%) to determine their payment.
Note: Additional adjustments for health insurance, child care, and parenting time may apply.
Frequently Asked Questions About Idaho Child Support
How is child support calculated in Idaho?
What income is used for Idaho child support?
Does shared custody affect child support in Idaho?
Can Idaho courts deviate from child support guidelines?
How long does child support last in Idaho?
About This Calculator
This calculator uses the official ID Guidelines (IRCP 126) (2024 guidelines) to estimate child support in Idaho. Calculations were last verified against the official source on 2026-05-30.
Disclaimer: This calculator provides estimates only and does not constitute legal advice. Actual child support amounts are determined by Idaho courts and may differ based on factors not included here. For legal advice, consult a Idaho family law attorney.
Our methodology: Based on the Income Shares model as defined in the ID Guidelines (IRCP 126). Updated for 2026.