Reviewed for current 2026 law

Idaho Arrears Interest Guide

Identify the applicable judgment rate for each period without freezing a market-linked rate.

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

arrears interest guide

Arrears owed

The unpaid support amount itself, before any interest.

Accrual period
How do you want to enter the period?

Estimated arrears with interest: $5,000.00

Interest of $0.00 under Idaho Code § 28-22-104.

How this estimate was computed
Line itemAmount
Arrears principalIdaho Code § 28-22-104, legal rate of interest on judgments (Idaho Legislature)$5,000.00
Interest not computed: no verified numeric rate (Idaho Code § 28-22-104)Idaho judgment interest resets from a statutory market-based formula. Verify the rate applicable to each judgment period rather than applying one permanent percentage.Idaho Code § 28-22-104, legal rate of interest on judgments (Idaho Legislature)$0.00
Arrears principal plus interestIdaho Code § 28-22-104, legal rate of interest on judgments (Idaho Legislature)$5,000.00

Assumptions

  • Accrual period expressed as 12 month(s); partial months prorate.
  • No verified numeric interest rate for this state; interest shown as 0 and the result is an estimate of principal only.

Estimate only. The court or state agency calculation controls.

Idaho arrears interest under Idaho Code § 28-22-104; rules last reviewed 2026-08-09.

Idaho judgment interest changes

Section 28-22-104 derives the judgment rate from a market benchmark and updates it annually.

A single permanent percentage would misstate multi-year arrears.

Rate type
Annual market-linked judgment ratesource

Build the ledger period by period

Match each principal balance and payment to the legally applicable rate period.

What this estimate includes

  • Current rate mechanism

What it leaves out

  • A stale fixed-rate projection
  • Payment-allocation findings

Idaho arrears interest guide FAQs

Why is no permanent rate shown?

The statutory judgment rate changes annually.

Can one rate cover several years?

Not safely without confirming each annual period.

Should payments reduce principal?

Use the official ledger and allocation rules.

Is every unpaid installment treated identically?

The order and judgment record control.

Does this calculate penalties?

No.

Is this legal advice?

No.

Official sources

Official sources last verified: .

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