Idaho Child Support Laws

Part of my Idaho Family Law Overview.

By Ronald W. Brilliant, Attorney at Law · Licensed in Idaho, Nevada & California · Last reviewed: September 2026 against the Idaho Code as posted by the Idaho Legislature (July 1, 2026)

In This TopicIdaho Family LawTopic 6 of 9: Child Support

In a divorce or child support case, an Idaho court may order either or both parents who owe a duty of support to a child to pay an amount reasonable or necessary for the child’s support and education (Idaho Code § 32-706(1)). Support is ordered without regard to marital misconduct (§ 32-706(1)).

Idaho’s income withholding law applies to any dependent child, regardless of the parents’ past or current marital status (Idaho Code § 32-1203(2)). This page covers how support is set, how long it lasts, how it is paid and enforced, and how it can be changed. It matters to any parent who pays or receives child support in Idaho.

How the Court Sets Child Support

The court considers all relevant factors, which may include (Idaho Code § 32-706(1)):

• The financial resources of the child;
• The financial resources, needs, and obligations of both the custodial and noncustodial parents, which ordinarily do not include a parent’s community property interest in the resources or obligations of a spouse who is not the child’s parent, unless compelling reasons exist;
• The standard of living the child enjoyed during the marriage;
• The physical and emotional condition and needs of the child, and the child’s educational needs;
• The availability of medical coverage for the child at reasonable cost; and
• The actual tax benefit recognized by the party claiming the federal child dependency exemption.

“Reasonable cost” for medical coverage means the cost to the obligor (the parent ordered to provide the coverage) does not exceed five percent (5%) of his or her gross income (Idaho Code § 32-1214B(11)).

The Idaho Child Support Guidelines

The Idaho Code authorizes the Idaho Supreme Court to adopt child support guidelines that apply these factors (Idaho Code § 32-706(5)). The guidelines themselves, including how amounts are calculated, are court rules and are not part of the Idaho Code, so they are not described here.

There is a rebuttable presumption that the amount resulting from the guidelines is the amount of support to be awarded, unless evidence shows that applying the guidelines would be unjust or inappropriate in that case (Idaho Code § 32-706(5)). A judge who departs from the guidelines must make a written or specific finding on the record explaining that applying them would be unjust or inappropriate (§ 32-706(5)).

Temporary Support and Tax Benefits

While a divorce is pending, the court may, on either party’s motion, order temporary support of a child of the marriage (Idaho Code § 32-704(1)). If the court awards one parent the right to claim tax benefits for a child, the order need not list every benefit, and that parent must attach a copy of the order to his or her income tax return (§ 32-706(6)).

How Long Child Support Lasts

Support may be ordered until the child is eighteen (18) years of age (Idaho Code § 32-706(1)). If the child is still in high school after turning eighteen, the court may, in its discretion, continue support until the child stops attending high school or turns nineteen (19), whichever is sooner (§ 32-706(2)).

When a child’s parent is a minor, the court may order the minor parent’s own parents to pay an amount reasonable or necessary for the child’s support and education until the minor parent turns eighteen (18) (Idaho Code § 32-706(4)). A premarital agreement may not adversely affect a child’s right to support (§ 32-923(2)).

How Support Is Paid

Unless the court orders otherwise, child support payments are paid to the Idaho Department of Health and Welfare, which keeps a record and sends each payment to the person entitled to it within two (2) business days of receiving it (Idaho Code § 32-710A(A)). If child support is not being paid as ordered, the person entitled to it may apply to the department for enforcement services (§ 32-710A(B)).

Both the paying parent (the obligor) and the receiving parent (the obligee) must file identifying information, such as their address, telephone number and employer, with the court or the department. They must give written notice of any change within thirty (30) days (Idaho Code § 32-1212).

Income Withholding

All child support orders must state that the order will be enforced by income withholding under chapter 12 of Title 32 (Idaho Code §§ 32-706(3), 32-710A(C)). The court must order income withholding in all support orders, effective the date of the order, unless an exception applies (§ 32-1204(1)).

Immediate withholding is not ordered if the court makes a specific written finding of good cause, or if the court finds that a written alternative arrangement reached by the parties (and the department, where it is providing child support services) is in the child’s best interests (Idaho Code § 32-1204(2)). Even without immediate withholding, the obligor becomes subject to withholding once a delinquency reaches at least one month of support, without a hearing (§ 32-1205).

Withholding rule	Idaho Code
Total withheld may not exceed 50% of the obligor’s disposable earnings, nor the limit in § 11-207	§ 32-1210(3)
Employer sends withheld money to the department within 7 business days after the date the amount would have been paid to the obligor	§ 32-1210(2)
Employer may deduct a processing fee of up to $5.00 per withholding	§ 32-1210(7)
Child support withholding has priority over other wage assignments or garnishments, except other child support orders	§ 32-1210(9)
Employer may not fire, discipline, or refuse to hire an obligor because of a withholding order	§ 32-1211(1)
When the department starts withholding upon a delinquency, the obligor may request an administrative review (limited to mistakes of fact) within 14 days after the notice is mailed; the department reviews within 35 days	§ 32-1207(2)(d)

An obligor may ask the court that issued the withholding order to quash, modify, or terminate it, but relief is granted only if the obligor shows a substantial probability of irreparable injury to the obligor and none to the obligee (Idaho Code § 32-1215(1)-(2)). If withholding has been in place for twelve (12) consecutive months and support is current, the court may end it on the obligor’s motion unless the obligee shows good cause to keep it (§ 32-1215(3)).

Medical Support

If a parent ordered to provide health coverage fails to do so, the order may be enforced directly by sending a national medical support notice to the parent’s employer, requiring the employer to enroll the child in a health benefit plan (Idaho Code §§ 32-1214C, 32-1214F). A child may not be denied enrollment because the child was born out of wedlock, is not claimed as a tax dependent, does not live with the obligor or in the insurer’s service area, or because it is not an enrollment season (§ 32-1214E).

When uncovered medical expenses, or premiums, deductibles or claim payments owed by the obligor, reach one hundred dollars ($100) or more, the obligee may file a petition or motion to enforce payment (Idaho Code § 32-1213(2)). After a hearing, the court orders payment of the sums owed and may order a monthly amount for ongoing expenses (§ 32-1213(4)).

Other Enforcement Tools

• Security. The court may require reasonable security for support payments and may enforce it by appointing a receiver or by other remedies (Idaho Code § 32-707). The court looks first to community property, then to either party’s separate property (§ 32-708).
• Bank account data match. The department runs a financial institution data match for obligors behind by at least ninety (90) days of support or two thousand dollars ($2,000), whichever is less (Idaho Code § 32-1601(2)(d)). It may then issue an asset withholding order freezing the account (§§ 32-1603, 32-1605(1)). A written hearing request must be received by the department within fourteen (14) days after the notice is mailed; if no request is made, the frozen funds are surrendered and applied to the arrears (§§ 32-1607(2), 32-1609).
• Necessaries. If a parent neglects to provide necessary items for a child in his or her charge, a third person who supplies them in good faith may recover their reasonable value from the parent (Idaho Code § 32-1003).

Changing a Child Support Order

A support order may be modified only upon a showing of a substantial and material change of circumstances, and only for installments coming due after the motion to modify (Idaho Code § 32-709(1)). The guidelines must provide that, in a modification, children of the requesting party born or adopted after the existing order are not considered (§ 32-706(5)).

The court may allow a credit against unpaid support for periods of more than one hundred twenty (120) days when the children lived primarily with the paying parent with the knowledge and consent of the custodial parent (Idaho Code § 32-709(2)). If the court finds a modification proceeding vexatious and harassing, attorney fees and costs shall be assessed against the party seeking modification (§ 32-718).

When the department is enforcing an order, each parent must be notified of the right to request a department review every thirty-six (36) months; more frequent reviews require a substantial and material change in circumstances (Idaho Code § 32-1218(1)). The department seeks a modification only if the review results in an obligation that differs by at least fifteen percent (15%), but not less than fifty dollars ($50.00) per month (§ 32-1218(3)).

Paternity Fraud

A court shall vacate a support order if it finds by clear and convincing evidence that the moving party is not the child’s biological father and that the obligee knowingly and intentionally misrepresented paternity (Idaho Code § 32-1009). The motion must be filed within two (2) years of discovering the evidence, and if the order is vacated, the obligor may sue for restitution of support paid (§ 32-1009).

Support is usually decided together with child custody and, in a divorce, property division and maintenance. For the broader divorce process, see our Idaho divorce page.

How I Can Help

I help Idaho parents seek, respond to, and change child support orders, and I help clients understand income withholding, medical support, and enforcement actions. If you have a child support question, Request a consultation to discuss your situation.

This page provides general information about Idaho family law, based on the Idaho Code, and is not legal advice. Court rules (including the Idaho Child Support Guidelines), regulations, and case law also affect family law matters. Every situation is different; consult an attorney about yours. Reading this page does not create an attorney-client relationship.