Child support on $35,000 a year in Idaho (1 child)
Idaho guidelines effective July 1, 2025. Idaho overview
If Parent A earns $35,000 a year, Parent B earns $40,000 and the child lives mostly with Parent B (52 overnights a year with Parent A), Idaho's guideline amount is $325 a month (Parent A pays Parent B).
Across the table below it ranges from $477 paid by Parent B (Parent B earns $100,000, equal time) to $507 (Parent B earns $20,000, Parent A has no overnights).
This is the guideline amount, not a court order.
Change the numbers
Guideline child support
Idaho · 1 child · Parent A $35000 per year · Parent B $40000 per year · children live mostly with Parent B
$325 a month
Parent A pays Parent B
- Parent A: 46.7% of combined income
- Parent B: 53.3%
How it adds up
- Combined income
- $6,250 a month
- Basic obligation
- $880 a month
- Parent A's share of income
- 46.7%
- Tax benefit adjustment
- -$86 a month
- Guideline amount
- $325 a month
See the worksheet for this example
Idaho uses the income shares model under Idaho Rules of Family Law Procedure, Rule 120 (Idaho Child Support Guidelines); Idaho Code § 32-706. Official worksheet: Standard Child Support Worksheet (I.R.F.L.P. Form 6) or Shared, Split, or Mixed Custody Child Support Worksheet (Form 7). Child support agency: Idaho Department of Health and Welfare, Child Support Services.
Estimate under Idaho's child support guidelines effective July 1, 2025. Verified against the official Idaho sources on October 7, 2026. Not legal advice. Courts can deviate from the guidelines. How we calculate →
By parenting time and the other parent's income
| Overnights | $0 | $20,000 | $30,000 | $40,000 | $50,000 | $60,000 | $80,000 | $100,000 |
|---|---|---|---|---|---|---|---|---|
| 0 | $475 A→B | $507 A→B | $328 A→B | $325 A→B | $318 A→B | $307 A→B | $283 A→B | $262 A→B |
| 52 | $475 A→B | $507 A→B | $328 A→B | $325 A→B | $318 A→B | $307 A→B | $283 A→B | $262 A→B |
| 104 | $475 A→B | $432 A→B | $202 A→B | $154 A→B | $106 A→B | $60 A→B | $24 B→A | $94 B→A |
| 128 | $463 A→B | $363 A→B | $124 A→B | $67 A→B | $12 A→B | $41 B→A | $133 B→A | $212 B→A |
| 182 | $357 A→B | $210 A→B | $52 B→A | $128 B→A | $200 B→A | $266 B→A | $380 B→A | $477 B→A |
The Idaho worksheet for this example
| Line | Official label | Value |
|---|---|---|
| A9 | Gross income subtotal (Affidavit Verifying Income) (Parent A)Parent A's gross monthly income | $2,916.67 a month |
| A9 | Gross income subtotal (Affidavit Verifying Income) (Parent B)Parent B's gross monthly income | $3,333.33 a month |
| 1 | Monthly ICSG income (Parent A)Parent A's monthly Guidelines Income | $2,916.67 a month |
| 1 | Monthly ICSG income (Parent B)Parent B's monthly Guidelines Income | $3,333.33 a month |
| 1 | Monthly ICSG income, combinedCombined monthly Guidelines Income | $6,250.00 a month |
| 2 | Percentage share of income (Parent A)Parent A's income share | 46.67% |
| 2 | Percentage share of income (Parent B)Parent B's income share | 53.33% |
| 3 | Basic child support obligationSchedule amount for both parents | $880.00 a month |
| 4 | Each parent's support obligation (Parent A)Parent A's share of the schedule amount | $410.67 a month |
| 4 | Each parent's support obligation (Parent B)Parent B's share of the schedule amount | $469.33 a month |
| 5 | Recommended base supportBase support | $410.67 a month |
| 6c | Total tax benefit for all exemptions divided by 12Tax benefit for the children, per month | $183.75 a month |
| 6c | Tax benefit multiplied by line 2 % (Parent A)Parent A's share of the other parent's tax benefit | $85.75 a month |
| 7 | Total amount to be orderedGuideline amount | $325.00 a month |
With child care and health insurance
| Costs | Guideline amount |
|---|---|
| No add-ons | $325 a month A→B |
| Child care $500 a month | $558 a month A→B |
| Child care $1,000 a month | $792 a month A→B |
| Health insurance $150 a month | $395 a month A→B |
| Health insurance $300 a month | $465 a month A→B |
Work-related child care and the children's health insurance premium are shared by income share, with credit to the parent who pays. The parent with the larger tax benefit for the children under the official tables claims them, and the other parent receives their income share of that benefit.
How Idaho works it out
Idaho uses the income shares model. The schedule is a set of percentages of the parents' combined annual Guidelines Income, falling as income rises; each bracket's monthly amount is added up, and each parent is responsible for their share of combined income.
Guidelines Income is gross income before taxes from almost any source, less support and maintenance paid under other orders, maintenance ordered in this case, and the guideline support for other children living with a parent. Child support received doesn't count.
When the children spend more than 25% of the overnights with each parent, the basic obligation is multiplied by 1.5, each parent's share is multiplied by the other parent's share of overnights, and the two are offset. No one pays more than they would without shared custody.
Frequently asked questions
How much child support is paid on $35,000 in Idaho for 1 child?
If Parent A earns $35,000 a year, Parent B earns $40,000 and the child lives mostly with Parent B (52 overnights a year with Parent A), Idaho's guideline amount is about $325 a month (Parent A pays Parent B).
How much is that a week?
That is about $75 a week (the monthly amount × 12 ÷ 52).
What if the parents share time equally?
With about equal parenting time and the same incomes, the guideline amount is about $128 a month (Parent B pays Parent A).
What if Parent B has no income?
If Parent B has no income and the child lives mostly with Parent B, the guideline amount is about $475 a month (Parent A pays Parent B).
Official sources and verification
- Law: Idaho Rules of Family Law Procedure, Rule 120 (Idaho Child Support Guidelines); Idaho Code § 32-706
- Idaho child support guidelines
- Standard Child Support Worksheet (I.R.F.L.P. Form 6) or Shared, Split, or Mixed Custody Child Support Worksheet (Form 7)
- Idaho Department of Health and Welfare, Child Support Services
- Changing a Idaho child support order
Guidelines effective July 1, 2025. Verified against the official Idaho sources on October 7, 2026. How we calculate →