Child Support Calculation Worksheet - Idaho
DO NOT FILE THIS WORKSHEET. Use it to collect and reconcile the inputs for
the current official Idaho Affidavit Verifying Income and applicable child-
support worksheet. Use the current Rule 120 schedules and official form
revision in effect on the calculation date.
IDAHO CHILD-SUPPORT CALCULATION PREPARATION WORKSHEET
1. Form and Case Control
| Item | Verified information | Source reviewed | Checked on |
|---|---|---|---|
| Court, judicial district, and county | [________________________________] | Docket / operative order | [__/__/____] |
| Case number | [________________________________] | Docket / operative order | [__/__/____] |
| Original petitioner | [________________________________] | Operative caption | [__/__/____] |
| Original respondent | [________________________________] | Operative caption | [__/__/____] |
| Calculation purpose | ☐ Initial support ☐ Modification ☐ Temporary request ☐ Other: [________________] | Pleading / order | [__/__/____] |
| Calculation date | [__/__/____] | Working papers | [__/__/____] |
| Current Rule 120 page checked | [________________________________] | Idaho Supreme Court | [__/__/____] |
| Current Affidavit Verifying Income | Form / revision: [________________________________] | Official forms page | [__/__/____] |
| Applicable support worksheet | ☐ Standard ☐ Shared / split / mixed — form / revision: [________________] | Official forms page | [__/__/____] |
| Continued-support worksheet needed? | ☐ No ☐ Yes — [________________________________] | Rule 120 / official forms | [__/__/____] |
| Current support order, if any | Date and terms: [________________________________] | Filed order | [__/__/____] |
☐ The affidavit, worksheet, schedules, and instructions all come from the same current official form set.
2. Children and Parenting-Time Record
| Child | Date of birth | High-school status if age 18 | Overnights with parent A | Overnights with parent B | Other current support order or benefit |
|---|---|---|---|---|---|
| [________________________________] | [__/__/____] | [________________________________] | [____] | [____] | [________________________________] |
| [________________________________] | [__/__/____] | [________________________________] | [____] | [____] | [________________________________] |
| [________________________________] | [__/__/____] | [________________________________] | [____] | [____] | [________________________________] |
| [________________________________] | [__/__/____] | [________________________________] | [____] | [____] | [________________________________] |
Rule 120 measures parenting time by overnights during one calendar year.
Select the calculation route from the current official worksheet rather than
from labels used in an older order.
| Parenting-time route | Current Rule 120 screen | Applies |
|---|---|---|
| Primary | One parent has 25% or fewer of the overnights | ☐ |
| Shared physical custody | Each parent has more than 25% of the overnights | ☐ |
| Split physical custody | Each parent has physical custody of at least one child | ☐ |
| Mixed or other current Form 7 route | Apply the current official form and instructions | ☐ |
☐ The overnight count reconciles to the operative parenting plan and actual calendar evidence used in the case.
3. Gross-Income Classification
Do not assume that a tax-return label controls Rule 120. Record the amount,
period, source document, and proposed Rule 120 treatment for every item.
| Parent | Income or benefit item | Gross amount | Period | Rule 120 treatment and subsection | Proof |
|---|---|---|---|---|---|
| [A / B] | Wages / salary | $[____________] | [____________] | [________________________________] | [________________________________] |
| [A / B] | Commission / bonus | $[____________] | [____________] | [________________________________] | [________________________________] |
| [A / B] | Overtime or second job | $[____________] | [____________] | [________________________________] | [________________________________] |
| [A / B] | Self-employment / rent / royalty | $[____________] | [____________] | [________________________________] | [________________________________] |
| [A / B] | Pension / retirement / annuity | $[____________] | [____________] | [________________________________] | [________________________________] |
| [A / B] | Social Security / disability benefit | $[____________] | [____________] | [________________________________] | [________________________________] |
| [A / B] | Workers' compensation / unemployment | $[____________] | [____________] | [________________________________] | [________________________________] |
| [A / B] | Alimony / maintenance | $[____________] | [____________] | [________________________________] | [________________________________] |
| [A / B] | Veterans' benefit | $[____________] | [____________] | [________________________________] | [________________________________] |
| [A / B] | Education grant / scholarship / financial aid | $[____________] | [____________] | [________________________________] | [________________________________] |
| [A / B] | Employment benefit reducing living expense | $[____________] | [____________] | [________________________________] | [________________________________] |
| [A / B] | Gift / prize / sale proceeds / judgment | $[____________] | [____________] | [________________________________] | [________________________________] |
| [A / B] | Other | $[____________] | [____________] | [________________________________] | [________________________________] |
Potential-Income Screen
Rule 120 contains exceptions and timing rules; do not impute income merely
because actual income decreased.
| Question | Parent A | Parent B | Evidence / analysis |
|---|---|---|---|
| Voluntarily unemployed or underemployed? | ☐ No ☐ Possible | ☐ No ☐ Possible | [________________________________] |
| Physical or mental incapacity? | ☐ No ☐ Yes | ☐ No ☐ Yes | [________________________________] |
| Incarceration issue? | ☐ No ☐ Yes | ☐ No ☐ Yes | [________________________________] |
| Full-time same or similar occupation safe-harbor issue? | ☐ No ☐ Yes | ☐ No ☐ Yes | [________________________________] |
| Caring for a child under six months? | ☐ No ☐ Yes | ☐ No ☐ Yes | [________________________________] |
| Work history, qualifications, opportunities, and community earnings documented? | ☐ | ☐ | [________________________________] |
| Nonproducing or transferred asset issue? | ☐ No ☐ Yes | ☐ No ☐ Yes | [________________________________] |
4. Rule 120 Adjustments to Gross Income
Use only adjustments authorized by the current rule and supported by evidence.
In a modification, screen later-born or later-adopted children under Rule
120(f)(5) before entering any adjustment.
| Adjustment item | Parent A | Parent B | Order / payment proof | Allowed amount used |
|---|---|---|---|---|
| Child support ordered in another case | $[____________] | $[____________] | [________________________________] | $[____________] |
| Spousal maintenance ordered in another relationship | $[____________] | $[____________] | [________________________________] | $[____________] |
| Spousal maintenance ordered in this case | $[____________] | $[____________] | [________________________________] | $[____________] |
| Qualifying support paid without court order | $[____________] | $[____________] | [________________________________] | $[____________] |
| Qualifying child of another relationship residing in the home | $[____________] | $[____________] | [________________________________] | $[____________] |
| Total Rule 120 adjustments | $[____________] | $[____________] | ||
| Final Guidelines Income | $[____________] | $[____________] |
Combined Guidelines Income: $[____________] per [month / year]
Parent A percentage: [____]%
Parent B percentage: [____]%
5. Official Basic-Support Calculation
Enter the result from the current official Form 6 or Form 7 and its current
Rule 120 schedules. Do not recreate the schedule from this preparation packet.
| Calculation field | Entry |
|---|---|
| Combined Guidelines Income | $[____________] |
| Number of children in this calculation | [____] |
| Current schedule / form revision date | [__/__/____] |
| Basic Child Support Obligation | $[____________] |
| Parent A proportionate share | $[____________] |
| Parent B proportionate share | $[____________] |
| Parenting-time adjustment from official worksheet | $[____________] |
| Offset, if the official worksheet requires one | $[____________] |
| Basic monthly payment after official calculation | $[____________] |
Low-Income and Minimum-Support Screen
Rule 120 says the court should carefully review income and living expenses when
the paying parent's monthly income is below $800. The $50-per-child figure is a
rebuttable presumption, not an automatic minimum in every case.
| Item | Entry |
|---|---|
| Paying parent's monthly income | $[____________] |
| Monthly living-expense evidence | [________________________________] |
| Official worksheet result | $[____________] |
| Presumed minimum result, if applicable | $[____________] |
| Evidence supporting or rebutting the presumption | [________________________________] |
6. Adjustments to the Support Award
Record each item separately. Do not hide direct-payment terms inside the basic
support figure unless the current worksheet and proposed order treat them that
way.
| Item | Current amount and payer | Requested allocation | Evidence | Official worksheet / order treatment |
|---|---|---|---|---|
| Reasonable work-related child care | [________________________________] | [________________________________] | [________________________________] | [________________________________] |
| Transportation cost and responsibility | [________________________________] | [________________________________] | [________________________________] | [________________________________] |
| State and federal child-related tax benefits | [________________________________] | [________________________________] | [________________________________] | [________________________________] |
| Child health-insurance premium | [________________________________] | [________________________________] | [________________________________] | [________________________________] |
| Uncovered health-care expenses | [________________________________] | [________________________________] | [________________________________] | [________________________________] |
| Disability or retirement dependent benefit | [________________________________] | [________________________________] | [________________________________] | [________________________________] |
☐ Any health-care course of treatment creating more than $500 in actual out-of-pocket expense to the other parent was screened under Rule 120(g)(4)(B), including advance written approval, prior order, and extraordinary-circumstances issues.
7. Guideline Departure Record
Section 32-706(5) and Rule 120 require the ordinary guideline calculation to be
identified before a departure is justified.
| Item | Entry |
|---|---|
| Guideline amount before departure | $[____________] |
| Departure requested? | ☐ No ☐ Yes |
| Amount requested | $[____________] |
| Exact current Rule 120 factor or other authority | [________________________________] |
| Case-specific evidence | [________________________________] |
| Proposed written or on-record finding | [________________________________] |
☐ The requested result is not based on a generic checklist category unsupported by the current rule.
8. Duration and Modification Screen
Idaho Code § 32-706(1)-(2) addresses support through age 18 and permits the
court, in its discretion, to continue support during high school until the
child leaves high school or reaches age 19, whichever occurs first.
| Child | Age-18 date | High-school status | Potential end date under current order and § 32-706 | Continued-support worksheet entry |
|---|---|---|---|---|
| [________________________________] | [__/__/____] | [________________________________] | [________________________________] | [________________________________] |
| [________________________________] | [__/__/____] | [________________________________] | [________________________________] | [________________________________] |
| [________________________________] | [__/__/____] | [________________________________] | [________________________________] | [________________________________] |
If this calculation supports a modification request, § 32-709(1) requires a
substantial and material change and limits relief to installments accruing
after the modification motion. Rule 120(d) says a changed guideline amount may
constitute the required change; it does not create a universal 15% threshold.
| Modification item | Entry |
|---|---|
| Date of current order | [__/__/____] |
| Current ordered support | $[____________] |
| Current official worksheet result | $[____________] |
| Difference | $[____________] / [____]% |
| Facts supporting substantial and material change | [________________________________] |
| Motion filing date | [__/__/____] |
| First installment accruing after motion | [________________________________] |
| Requested effective date | [__/__/____] |
9. Transfer and Filing Checklist
☐ Every figure is in a consistent monthly or annual unit and the conversion is shown.
☐ Income, employment benefits, potential income, and Rule 120 adjustments are separately identified.
☐ The parenting-time route and overnight count match the current official worksheet.
☐ The current Rule 120 schedule was used; no table or percentage was copied from an older template.
☐ The $50 figure was treated as rebuttable, not automatic.
☐ Work-related child care, transportation, tax benefits, health insurance, uncovered health care, and dependent benefits were analyzed separately.
☐ The ordinary guideline amount and any requested departure are both stated.
☐ Any modification request was screened under § 32-709(1) and Rule 120(d), without a universal percentage trigger.
☐ Verified information was transferred to the current official affidavit and applicable worksheet.
☐ This preparation worksheet was not signed, certified, or filed as an official court form.
Sources and References
About this template
- Last updated
- August 23, 2026
- Citations checked
- August 23, 2026
- Jurisdiction
- Idaho
- Category
- Family Law
Legal authority
- Idaho Rules of Family Law Procedure 120
- Idaho Code § 32-706(1), (2), and (5)
- Idaho Code § 32-709(1)
Family law covers the paperwork that shapes divorce, custody, child support, adoption, guardianship, and other family matters. These filings are emotional and high-stakes, and they also have to meet strict procedural rules for service, financial disclosure, and parenting plans. Clean, accurate paperwork keeps the focus on getting a workable outcome for the family instead of getting derailed by technical problems that delay hearings or force amended filings.
Not legal advice
This template is provided for informational purposes. We recommend having an attorney review any legal document before signing, especially for high-value or complex matters.
Checked against the law it cites
A reviewer verified this template's legal citations against the official source on August 23, 2026.
Idaho Rules of Family Law Procedure, Rule 120 (Child Support Guidelines) (checked August 23, 2026): "Both parents must financially support their child. This responsibility should be divided proportionally to their Guidelines Income. The Guidelines amount can be adjusted if evidence shows that amount to be inappropriate. In such a case the court will set forth on the record the dollar amount of support that the Guidelines would ordinarily calculate and then cite the circumstances justifying departure from the Guidelines. If the monthly income of the paying parent is below $800.00, the court should carefully review the incomes and living expenses to determine the maximum amount of support that should be ordered without denying a parent the means for self-support at a minimum subsistence level. There is a rebuttable presumption that a minimum amount of support is at least $50.00 per month per child. In all cases, the Affidavit Verifying Income, Child Support Worksheet, and the Continued Child Support Worksheet will be provided to the court."
Idaho Rules of Family Law Procedure 120(e)(3) (checked August 23, 2026): "If a parent is voluntarily unemployed or underemployed, child support will be based on gross potential income, except that potential income should not be included for a parent that is physically or mentally incapacitated. Incarceration may not be treated as voluntary unemployment in establishing or modifying support orders. Determination of potential income will be made according to any or all of the following methods, as appropriate, including employment potential and probable earnings based on the parent's work history, qualifications, and job opportunities and earnings levels in the community."
Idaho Rules of Family Law Procedure 120(f) (checked August 23, 2026): "A deduction will be allowed from Gross Income for the amount ordered in any other court order for child support or spousal maintenance from another relationship. A deduction will be allowed from gross income for any spousal maintenance ordered in the current case. A deduction will be allowed from Gross Income for payments without court order currently being made for the support of a child from another relationship where that parent has shown a pattern of payment. A deduction will be allowed from Gross Income when a natural or adopted child of another relationship resides in the home of either parent. In a proceeding to modify an existing award, children who are born or adopted after the entry of the existing order will not be considered."
Idaho Rules of Family Law Procedure 120(i)(3), (4), and (6) (checked August 23, 2026): "When one parent has 25% or less of the overnight parenting time, the calculation will be the same basic amount from the tables above. If the child spends more than 25% of the overnights in a year with each parent, an adjustment in the Guidelines amount will be made. When each parent has physical custody of at least one child, an adjustment will be made."
Draft your Child Support Calculation Worksheet in the editor
Answer a few questions, let the AI editor draft each section from your answers, review it, and download Word and PDF. $99 one time, or $249 per month for every document and every Ezel app.