Reviewed for current 2026 law
Kentucky Child Support Arrears Calculator
Apply the special support-judgment rate without confusing it with ordinary judgment interest.
Reviewed by SupportDecode Editorial Team Page content reviewed Sources Methodology Update log
arrears calculator
Estimated arrears with interest: $5,006.00
Interest of $6.00 at 0.12% compound per year (KRS 360.040(2)).
| Line item | Amount |
|---|---|
| Arrears principalKRS 360.040 — interest on judgments (Kentucky General Assembly) | $5,000.00 |
| Interest at 0.12% per year, compounded annually, for 12 month(s) (KRS 360.040(2))A judgment for unpaid child support bears 12% interest compounded annually from the date the judgment is entered.KRS 360.040 — interest on judgments (Kentucky General Assembly) | $6.00 |
| Arrears principal plus interestKRS 360.040 — interest on judgments (Kentucky General Assembly) | $5,006.00 |
Assumptions
- Accrual period expressed as 12 month(s); partial months prorate.
- Compounding applied annually at 0.12% per period. A partial compounding period prorates through a fractional exponent, which slightly understates the balance versus compounding each completed period and adding simple interest for the remainder; the tool never overstates.
Estimate only. The court or state agency calculation controls.
Kentucky arrears interest under KRS 360.040(2); rules last reviewed 2026-08-09.
Kentucky support judgments use 12% annually
A judgment for unpaid child support bears 12% interest compounded annually from the date the judgment is entered.
The six-percent general judgment rule does not replace this special support provision.
Use judgment principal and entry date
Do not treat every missed installment as though a separate arrears judgment was entered on its due date.
What this estimate includes
- Annual compound estimate
What it leaves out
- Pre-judgment accrual
- Payment-by-payment ledger
- Official payoff
Kentucky arrears calculator FAQs
What rate applies?
Twelve percent to a judgment for unpaid child support.
Is it simple interest?
No. KRS 360.040 says compounded annually.
When does it begin?
From the date the judgment is entered.
Is the ordinary rate six percent?
Yes for many judgments, but subsection (2) separately sets support judgments at 12%.
Do later payments matter?
Yes, their timing changes the actual ledger.
Is this an official balance?
No. Obtain the court or agency ledger.
Official sources
Official sources last verified: .
- KRS 360.040 — interest on judgments
Kentucky General Assembly Last checked
Changelog: page reviewed . Material changes appear in the update log.