New York Child Support Arrears Interest 2026: How 9% Is Calculated

9% Interest — But Not Automatically: How NY Arrears Interest Works

New York's child support arrears interest is governed by CPLR § 5004, which sets the statutory interest rate at 9% per year on money judgments. This rate applies to all civil money judgments in New York, including child support arrears that have been reduced to judgment.

The critical phrase is "reduced to judgment." Unlike many states, New York does not automatically impose interest on unpaid child support from the date each payment was missed. The interest clock does not start until the custodial parent takes a specific legal action: docketing the accumulated arrears as a formal money judgment with the court.

This means that a parent who is owed years of unpaid child support but has never taken legal steps to formalize that debt is not entitled to 9% interest. The interest obligation is created by the judgment — not by the underlying support order alone.

Once a judgment is entered, interest accrues at 9% per year on the outstanding principal, calculated as simple interest (not compound). The interest continues to accrue until the debt is paid in full or until the 20-year collection window expires under CPLR § 211(e).

The Judgment Requirement Under CPLR § 5004

CPLR § 5004 provides that interest shall be at the rate of nine per centum per annum on any money judgment. The statute applies broadly to civil judgments, and courts have consistently held that child support arrears, once docketed as a judgment, qualify for this 9% rate.

The key is that the judgment must exist. A child support order — even one that has been violated for years — is not automatically a money judgment for the purposes of CPLR § 5004. The custodial parent must file a petition with the Family Court or Supreme Court to have the arrears formally entered as a money judgment.

Once the judgment is entered: - The court records the exact dollar amount of arrears as of the judgment date - Interest begins accruing from the judgment date at 9% per year - The judgment becomes enforceable through all standard civil judgment enforcement tools - The 20-year statute of limitations under CPLR § 211(e) begins running

This procedural distinction separates New York from states like California and Missouri, where interest runs automatically from each missed payment date without any required court action.

How to Docket Arrears as a Judgment in New York

To trigger CPLR § 5004 interest, the custodial parent must obtain a formal money judgment. The process generally involves the following steps:

Step 1 — File a Petition for Arrears: File a petition in Family Court (or Supreme Court if applicable) seeking entry of a money judgment for the accumulated arrears. The petition should specify the total amount owed, the period covered, and the existing support order.

Step 2 — Serve the Non-Custodial Parent: The non-custodial parent must be formally served with the petition and given an opportunity to respond or contest the amount.

Step 3 — Hearing and Calculation: The court will review payment records, typically from the Support Collection Unit (SCU), and calculate the arrears balance. The SCU tracks all payments and arrears in cases where income withholding is in place.

Step 4 — Entry of Judgment: Once the court confirms the arrears amount, it enters a money judgment. From this date forward, 9% annual interest applies to the judgment balance under CPLR § 5004.

Step 5 — Enforcement: With a formal money judgment, the custodial parent gains access to the full range of civil enforcement tools, including wage execution, bank levies, property liens, and license suspension through OCSE.

Many custodial parents skip this step and simply rely on administrative enforcement through the SCU — which remains effective but does not generate CPLR § 5004 interest on the accumulated balance.

Step-by-Step: Calculating 9% Interest

New York's 9% interest under CPLR § 5004 is simple interest, calculated annually on the outstanding principal balance.

Formula: Interest = Principal × 9% × Years

Or expressed daily: Daily interest = Principal × 0.09 ÷ 365

Example 1 — $10,000 Judgment, 3 Years With Judgment: - Principal: $10,000 - Rate: 9% per year - Duration: 3 years - Annual interest: $10,000 × 0.09 = $900 - Total interest: $900 × 3 = $2,700 - Total owed: $12,700

Example 2 — $10,000 Arrears, 3 Years Without Judgment: - Interest accrued: $0 - Total owed: $10,000 - Difference: $2,700 lost in interest by not filing

Example 3 — $25,000 Judgment, 10 Years: - Annual interest: $25,000 × 0.09 = $2,250 - Total interest over 10 years: $22,500 - Total owed: $47,500

Example 4 — Daily Rate on $15,000: - Daily interest: $15,000 × 0.09 ÷ 365 = $3.70/day - Monthly interest: approximately $111/month - Annual interest: $1,350

Partial Payments: When the non-custodial parent makes a partial payment, courts generally apply the payment first to accrued interest, then to principal. This means interest already accrued is not erased by a partial payment — the principal reduction only affects future interest calculations.

Use the calculator above to estimate interest based on your specific arrears amount, judgment date, and current date.

New York's 20-Year Window: CPLR § 211(e)

CPLR § 211(e) provides a 20-year statute of limitations for enforcement of child support judgments in New York. This is one of the longest collection windows of any state and gives custodial parents significant time to collect.

The 20-year period runs from each payment's original due date (not from the judgment date), which means that even old arrears can be collected if they are reduced to judgment within 20 years of when they were due.

What the 20-Year Window Means in Practice: - A parent who fell behind on support in 2006 could still have those arrears reduced to judgment and enforced as late as 2026 - Once reduced to judgment, the judgment itself is subject to CPLR § 211's general 20-year limit on enforcement - Each new payment that becomes due and goes unpaid starts its own 20-year clock

Combined with 9% Interest: $30,000 in arrears from 2016, reduced to judgment in 2016, and collected in 2026: - 10 years at 9% simple interest - Total interest: $30,000 × 0.09 × 10 = $27,000 - Total collected: $57,000

This is why timely docketing is so important — the interest accrual runs from the judgment date, so delaying the judgment costs interest.

The Real Cost of Not Filing: What Creditors Lose

Many custodial parents in New York rely entirely on administrative enforcement through the Support Collection Unit and never obtain a formal money judgment. This approach works for collecting current support and can recover arrears, but it forfeits the CPLR § 5004 interest entirely.

Scenario A — Administrative Enforcement Only (No Judgment): - $20,000 in arrears over 5 years - Interest accrued: $0 - Total recoverable: $20,000

Scenario B — Judgment Obtained, Same Facts: - $20,000 in arrears, judgment entered - 5 years at 9% per year: $20,000 × 0.09 × 5 = $9,000 - Total recoverable: $29,000 - Difference: $9,000 forfeited by not filing

Scenario C — Large Balance, Long Duration: - $50,000 in arrears, judgment entered - 15 years at 9% per year: $50,000 × 0.09 × 15 = $67,500 - Total recoverable: $117,500 - Without judgment: $50,000

The longer the arrears go unpaid after judgment, the more pronounced the difference becomes. For large balances over extended periods, the interest can exceed the original principal.

Family law attorneys in New York typically recommend obtaining a money judgment any time arrears reach a significant amount and there is reason to believe collection may be prolonged.

NY DCSS Enforcement Tools

New York's Division of Child Support Services (DCSS) and the Office of Temporary and Disability Assistance (OTDA) administer child support enforcement statewide. Enforcement tools include:

Income Withholding: New York law requires income withholding orders in most child support cases. Employers and other income sources must withhold support payments directly from wages.

Wage Garnishment / Wage Execution: When a formal money judgment exists, the custodial parent can execute directly against the non-custodial parent's wages through a Marshal or Sheriff. The federal Consumer Credit Protection Act limits garnishment to 50–65% of disposable earnings for child support.

License Suspension: New York can suspend driver's licenses, professional licenses, recreational licenses (hunting, fishing), and vehicle registrations when a non-custodial parent is four or more months behind on support.

Tax Intercept: Federal and state tax refunds are intercepted and applied to arrears. The federal program applies to refunds of any amount; the New York state program intercepts state tax refunds.

Passport Denial: Under federal law (42 U.S.C. § 652), the State Department will deny or revoke a passport when arrears exceed $2,500.

Contempt of Court: A non-custodial parent who fails to pay support in violation of a court order can be held in contempt. Contempt penalties in New York include fines and up to 6 months incarceration per violation.

Credit Reporting: Arrears of $1,000 or more are reported to consumer credit bureaus, affecting the non-custodial parent's credit score.

More information: New York OTDA Child Support — otda.ny.gov/programs/child-support

New York vs Missouri vs California: Interest Rate Comparison

Understanding how New York's approach compares to other major states helps both custodial and non-custodial parents evaluate their situations accurately.

New York (CPLR § 5004): - Rate: 9% per year - Type: Simple interest - Trigger: Only after formal judgment is docketed - Without judgment: Zero interest accrues - Collection window: 20 years (CPLR § 211(e))

California (Fam. Code § 17433.5): - Rate: 10% per year - Type: Simple interest - Trigger: Automatic from the date each payment was due - No judgment required - Collection window: 10 years renewable

Missouri (RSMo § 454.520): - Rate: 12% per year - Type: Simple interest - Trigger: Automatic on all unpaid support - No judgment required - Among the highest automatic rates in the US

Illinois (735 ILCS 5/2-1303): - Rate: 9% per year - Type: Simple interest - Trigger: Requires judgment (similar to NY) - Same rate as NY, same judgment requirement

Comparison on $10,000 Arrears Over 2 Years:

New York (with judgment): 9% — $1,800 interest — $11,800 total New York (no judgment): 0% — $0 interest — $10,000 total California: 10% automatic — $2,000 interest — $12,000 total Missouri: 12% automatic — $2,400 interest — $12,400 total Illinois (with judgment): 9% — $1,800 interest — $11,800 total

Key Takeaway: For custodial parents in New York, obtaining a formal judgment is the single most important step to ensure interest accrues. Without it, New York offers no interest advantage — and produces the worst outcome of any of these states.

Sources: CPLR § 5004 (legislature.ny.gov) | NY OTDA Child Support (otda.ny.gov/programs/child-support)