SupportDecode

Reviewed for current 2026 law

Idaho Support Withholding Calculator

Check the disposable-earnings ceiling for an Idaho support notice.

Reviewed by SupportDecode Editorial Team Page content reviewed Sources Methodology Update log

withholding calculator

Earnings

Weekly pay left after deductions required by law, such as taxes (15 U.S.C. 1672). Voluntary deductions still count as disposable.

Situation
Does the paying parent support another spouse or dependent child?
Do the arrears cover a period more than 12 weeks ago?

Maximum weekly withholding for support: $480.00

That is 60% of disposable earnings, the federal CCPA ceiling that applies to this situation (15 U.S.C. 1673(b)(2)).

How this limit was computed
Line itemAmount
Federal CCPA ceiling: 60% of disposable earnings (15 U.S.C. 1673(b)(2))15 U.S.C. 1673 (CCPA garnishment limits: 50/55/60/65% for support) (U.S. Congress (text via Cornell LII mirror))$480.00
Maximum support withholding: 60% of disposable earnings15 U.S.C. 1673 (CCPA garnishment limits: 50/55/60/65% for support) (U.S. Congress (text via Cornell LII mirror))$480.00

Assumptions

  • Disposable earnings are earnings minus deductions required by law (15 U.S.C. 1672); voluntary deductions are not subtracted.
  • Obligor does not support another spouse or dependent child.
  • No arrears older than 12 weeks.

Estimate only. The court or state agency calculation controls.

Federal CCPA ceiling under 15 U.S.C. 1673(b)(2); state rules under Idaho Code § 32-1206; 15 U.S.C. § 1673(b). Rules last reviewed 2026-08-09.

The federal support tiers set the outer limit

The applicable 50%, 55%, 60%, or 65% tier turns on another supported family and arrears age.

The ceiling is not a new support order; payroll withholds the lesser amount authorized by law and the notice.

Federal ceiling
50%-65% of disposable earningssource
Idaho authority
Income withholding for supportsource

Start with disposable earnings

Subtract only deductions required by law before applying the tier.

What this estimate includes

  • CCPA maximum

What it leaves out

  • Multiple-order allocation
  • Employer processing details

Idaho withholding calculator FAQs

What are disposable earnings?

Pay remaining after deductions required by law.

Is 65% always allowed?

No, only the highest CCPA fact pattern.

Can payroll withhold more than the order?

No.

Does another family matter?

Yes.

Do old arrears matter?

Yes, more than 12 weeks can add five percentage points.

Is this legal advice?

No.

Official sources

Official sources last verified: .

Changelog: page reviewed . Material changes appear in the update log.