How to File for Divorce in Idaho With Minor Children

To file for divorce in Idaho with minor children, the filing spouse must have lived in the state for six consecutive weeks, submit a petition to the district court with a $207 filing fee, serve the other spouse, and then work through the extra steps that apply whenever kids are involved: a parenting education class, a parenting plan, a custody determination, and a child support order. The court will not finalize anything until those pieces are in place and a short waiting period passes.

Confirm You Meet the Residency Requirement

Idaho requires the filing spouse (the “plaintiff”) to have lived in the state for at least six consecutive weeks immediately before filing the petition.¹ Only one spouse needs to meet it. The other can live anywhere, including another state or overseas.

Proof is easy to assemble. An Idaho driver’s license, voter registration, a lease in your name, or utility bills all work. If you moved recently, just make sure six full weeks have passed before you file.

Choose Your Grounds

Idaho recognizes eight grounds for divorce, among them adultery, extreme cruelty, willful desertion, willful neglect, habitual intemperance, felony conviction, permanent insanity, and irreconcilable differences.² Most parents file under irreconcilable differences, which Idaho defines as substantial reasons that make continuing the marriage untenable.³ It’s the no-fault option, so neither spouse has to prove the other did anything wrong. That tends to keep attention on the children rather than on blame.

File the Petition and Serve Your Spouse

The case begins when you file a petition in the district court for your county. The petition sets out your grounds and what you’re asking for on custody, support, and property. The filing fee is $207.⁴ The Idaho Court Assistance Office publishes the forms, including the versions tailored for cases with minor children.

After filing, you have to formally serve your spouse with the papers. Service gives them notice and starts their clock to respond. Under Idaho’s family law rules, the responding spouse has 21 days after service to file an answer.⁵

What happens next depends on whether the two of you agree. If you agree on custody, support, and property division, you can submit a stipulated decree and avoid a trial. If you don’t agree, the court may send you to mediation first. Mediation gives parents a structured setting to negotiate with a neutral third party and resolves many disputes without a hearing. Cases that still can’t settle go to trial, where a judge decides.

Finish the Parenting Education Class

Most Idaho judicial districts require divorcing parents of minor children to complete a parenting education course before the divorce can be finalized. The classes cover how separation affects children at different ages, co-parent communication, and conflict reduction. They usually cost between $25 and $100, and many are available online. You’ll need to file a certificate of completion with the court; skip it and your case stalls.

This requirement comes from local court rules in individual judicial districts, not from a single statewide statute. Check with your county courthouse or the Idaho Court Assistance Office to confirm which course your district accepts and whether a fee waiver is available.

Work Out Custody and a Parenting Plan

Idaho starts from a clear presumption: joint custody is in the child’s best interests. That applies to both joint physical custody (the child spends significant time living with each parent) and joint legal custody (both parents share decisions about health, education, and welfare). If a judge decides against joint custody, the order must give specific reasons.⁶

Joint physical custody doesn’t mean a 50/50 split. The statute specifically says it doesn’t require equal time or rigid alternating schedules. The actual division of time is set based on what works for the child.

Best Interest Factors

When deciding custody, the court weighs all relevant factors, which may include:

Each parent’s wishes about the arrangement
The child’s wishes, with more weight given to older children
How the child interacts with each parent and with siblings
The child’s adjustment to their home, school, and community
The character and circumstances of everyone involved in the child’s life
The need to promote stability and consistency
Any history of domestic violence, whether or not the child witnessed it

These come from Idaho Code 32-717, and courts treat the list as a starting point rather than a closed checklist.⁷ A judge can consider anything relevant to the child’s well-being.

The Parenting Plan

Every custody case needs a parenting plan. It spells out where the child lives during the school year and summer, how holidays and vacations are divided, who makes decisions about medical care and schooling, and how exchanges happen. Plans that both parents agree on are almost always approved; courts prefer cooperative arrangements over ones imposed from the bench. When parents can’t agree, the court writes the plan using the best interest factors.

Domestic Violence Changes the Calculation

Domestic violence carries special weight. If a court finds that one parent is a habitual perpetrator of domestic violence, the law presumes that joint custody is not in the child’s best interests.⁶ That parent has to overcome the presumption to get any joint custody. Courts can also order supervised visitation when safety is a concern, with supervision ranging from a trusted family member being present to visits at a professional facility with trained monitors.

Set Child Support

Idaho calculates child support under the Idaho Child Support Guidelines, which use an income shares model: both parents contribute in proportion to their incomes. The guidelines apply to children under 18, or up to 19 if the child is still in high school.⁸

A few principles drive the numbers:

Each parent’s share of the obligation matches their share of combined income. If one parent earns 60% of the total, that parent covers 60% of the child-related costs.
Courts give child support priority over other debts. A judge will rarely reduce support because of credit card balances or car payments.
There’s a rebuttable presumption of at least $50 per month per child, even for low-income parents. When the paying parent earns less than $800 per month, the court looks more carefully to avoid pushing that parent below subsistence.⁸
Support is calculated without regard to the gender of the custodial parent.

The base amount can be adjusted for health insurance premiums, daycare, and extraordinary medical costs. If either parent believes the guideline figure is inappropriate for the circumstances, the court can deviate from it, but the order must state the standard amount and explain the departure.⁸

Expect the order to address health insurance for the child. If a parent has access to employer-sponsored group coverage at a reasonable cost, the court typically orders that parent to enroll the child. Copays, deductibles, and expenses not covered by insurance are usually split between parents in proportion to income.

Wait Out the Minimum Period and Get the Decree

Idaho imposes a waiting period of at least 20 to 21 days after the respondent is served before the court will finalize a divorce. Even in cases where both spouses agree on every term, the court won’t enter a decree until that window closes. The waiting period gives both parties a minimum amount of time to review the terms before the divorce becomes final.

Once the waiting period has passed, the parenting class certificate is filed, and the court has approved the parenting plan and support calculation, the judge can sign the decree. If you reached a full agreement, that often happens on paper without a hearing. If there was a trial, the decree reflects what the judge ordered.

Changing the Order Later

A divorce decree with custody and support terms isn’t locked in forever. Either parent can ask the court to modify these orders when circumstances change significantly. Common triggers include a job loss or major income change, a child’s changing needs as they get older, a parent’s move, or a change in the child’s living situation that affects their well-being.

The parent asking for the change has to show a substantial and material change in circumstances since the original order. Courts won’t revisit custody because a parent is unhappy with the outcome or because of minor scheduling disagreements. The same best interest factors that governed the original decision apply to any modification.⁷

For child support, the guidelines offer a built-in benchmark: if running the current numbers produces an amount that differs substantially from the existing order, that difference alone can justify modification. Either parent can file the motion, and the court recalculates using updated income.⁸

One more thing worth knowing as a parent after the divorce: Idaho law guarantees the noncustodial parent access to the child’s medical, dental, health, school, and educational records. A school or doctor’s office cannot refuse to share records just because you don’t have primary custody.⁹ The one exception is the child’s address, which can be withheld if the custodial parent notifies the records custodian in writing — a protection meant for situations involving safety concerns.

1
Idaho State Legislature. Idaho Code 32-701 – Residence Required by Plaintiff
2
Idaho State Legislature. Idaho Code 32-603 – Causes for Divorce
3
Idaho State Legislature. Idaho Code 32-616 – Irreconcilable Differences
4
Idaho Court Assistance Office. Divorce
5
Idaho Supreme Court. IRFLP 206 – Time to Serve Responsive Pleading
6
Idaho State Legislature. Idaho Code 32-717B – Joint Custody
7
Idaho State Legislature. Idaho Code 32-717 – Custody of Children – Best Interest
8
Idaho Supreme Court. IRFLP 120 – Idaho Child Support Guidelines
9
Idaho State Legislature. Idaho Code 32-717A – Parents Access to Records and Information