Kentucky Child Support: Calculation, Collection, and Enforcement

Kentucky child support requires both parents to contribute financially to their children whether or not the parents were ever married or live together, with the amount set by a statutory formula based on both incomes and the number of children. The program is run by the Department of Child Support Services (DCSS) within the Office of the Attorney General, which handles establishing orders, collecting payments, and pursuing parents who fall behind.¹

How the Support Amount Is Calculated

Kentucky uses the Income Shares Model. The court combines both parents’ gross monthly incomes, looks up the base child support obligation for that combined income and the number of children in the table at KRS 403.212, and then splits that base amount between the parents in the same proportion as their incomes.² If one parent brings in 60% of the combined income, that parent owes 60% of the base support figure.

Gross income covers wages, salaries, bonuses, retirement, Social Security, disability, and most other income. Public assistance such as TANF and food stamps is excluded. For a self-employed parent, gross income means business receipts minus ordinary operating expenses, and the court scrutinizes those expenses because tax deductions don’t always reflect what’s actually available to pay support.²

Work-related childcare and the children’s health insurance premiums are added on top of the base obligation and split using the same income percentages. The guideline number is legally presumed to be correct. A judge can order a different amount, but only with written findings explaining why the standard figure would be unjust. Recognized reasons include a child’s extraordinary medical or educational needs, a parent’s own serious medical expenses, or the child’s independent financial resources.³

Parenting Time Credit

A paying parent who has the child for at least 88 overnights per year qualifies for a credit against the monthly obligation. The credit starts at 15% at the 88-night threshold and scales upward with more parenting time, reaching 50% when the parents share equal time. At equal time, the parent with the higher income is treated as the payer. The credit cannot be stacked with the self-support reserve; the paying parent gets whichever calculation produces the lower payment.⁴

Extraordinary Medical Expenses

Uninsured medical costs for the children above $250 per calendar year count as extraordinary medical expenses under Kentucky law. The category includes medical, surgical, dental, orthodontic, vision, counseling, and psychiatric costs. The parent carrying the child’s health insurance absorbs the first $250, and the rest is split between both parents in the same income proportions used for base support. Whether a specific expense qualifies as extraordinary is ultimately the court’s call.³

Establishing Paternity Before an Order Can Be Entered

For unmarried parents, a court cannot order a father to pay support until paternity is legally established. There are two paths.

The first is a voluntary acknowledgment. When an unmarried mother gives birth, hospital staff offer both parents a Declaration of Paternity (Form VS-8), signed in front of a notary; the father’s name then goes on the birth certificate and the acknowledgment carries the same legal weight as a court finding of paternity. Either parent can rescind it within 60 days, or before any court or administrative proceeding involving the child, whichever comes first. After that, it can only be undone by proving fraud, duress, or a factual mistake. Signing does not by itself grant the father custody or visitation; those require a separate court order.⁵

The second is a court action. Either parent or the state can file, and the court can order genetic testing of the mother, child, and alleged father. A biological match leads to a paternity finding and the court can move straight to setting support. A parent who has doubts can request genetic testing before signing the voluntary form.⁵

Applying for a Child Support Order

To open a case, complete the Application for Child Support Services (Form CS-33), available on the Attorney General’s website or at a local child support office.⁶ Gather these documents before you file:

Birth certificates and Social Security numbers for each child
Proof of your income: recent pay stubs (typically the last eight) or your most recent federal tax return
The other parent’s current address, Social Security number, and employer name and address
Any existing custody or support orders

You can submit the application through the Kentucky Child Support Interactive website, by mail, or in person at a local child support office.⁷ After filing, the agency assigns a case number, verifies the other parent’s employment and income against state and federal databases, and serves legal notice. Time from application to a scheduled hearing runs from several weeks to a few months, depending on caseload and how hard the other parent is to locate.

How Payments Are Collected

Almost every Kentucky support order is paid through automatic income withholding. The paying parent’s employer deducts the ordered amount from each paycheck and sends it to the state, which forwards it to the receiving parent. Income withholding has been the default on new and modified orders since 1990 and is the most reliable method because it takes memory and goodwill out of the equation.⁸

When wage withholding doesn’t work, such as for a self-employed parent, payments can be made online through the Kentucky Child Support Interactive portal, by mail with checks payable to Child Support Services, by phone through the support hotline, or in person at a local office. Receiving parents can take payments by direct deposit or on a prepaid Way2Go debit card.⁷

Modifying an Existing Order

Kentucky allows modification when there is a material change in circumstances that is substantial and continuing. The state applies a bright-line test: if recalculating under current guidelines produces a number at least 15% different from the current order, that difference is presumed to be a material change. A difference under 15% is presumed not to justify modification. The threshold works in both directions, whether you want the amount raised or lowered.⁹

Common triggers include permanent job loss, a substantial raise, a new support obligation for another child, or a major change in the parenting schedule. A short layoff or temporary dip in income won’t qualify. You can request a review through DCSS or file your own motion in family court.

One point that trips people up: keep paying the current amount until a judge signs the new order. Kentucky modifies support only for installments that come due after the modification motion is filed, and will not go back and adjust payments for the period before that filing date.⁹

When Child Support Ends

Support generally ends when the child turns 18. If the child is still in high school at 18, support continues through the end of the school year in which the child turns 19, and no further. Marriage before 18 also emancipates the child and ends the obligation.⁹

Death of the paying parent does not automatically end support. The court can modify the obligation, revoke it, or convert it into a lump sum paid from the parent’s estate, depending on the circumstances.⁹

Past-due support does not vanish when the child grows up. Arrears accumulated during the child’s minority remain collectible, and the state will keep using its enforcement tools until the balance is paid.

A boundary worth knowing: Kentucky courts cannot order a parent to pay college tuition or related post-secondary expenses. Standard child support ends at emancipation and no statute extends it. Parents can voluntarily agree to share college costs in a settlement, and once that agreement is incorporated into a court order it becomes enforceable like any other order.

What Happens When a Parent Doesn’t Pay

Enforcement escalates as arrears grow. Wage withholding handles most cases quietly, but Kentucky has several additional tools when payments stop.

Driver’s License Suspension

When arrears reach the equivalent of six months of unpaid support, the Transportation Cabinet suspends the delinquent parent’s driver’s license. The suspension lasts until the arrearage is paid off or the parent begins making court-ordered payments toward the balance. Kentucky law also bars auto insurance companies from raising a policyholder’s rates solely because the license was suspended for unpaid child support.¹⁰

Tax Refund Intercept and Passport Denial

The state can intercept federal and state tax refunds and apply them to unpaid support. At the federal level, once arrears exceed $2,500, the case is referred to the U.S. State Department, which will deny a new passport application and can revoke an existing passport. A planned international trip can collapse over a relatively modest arrearage.¹¹

Criminal Charges

Kentucky treats persistent nonpayment as a crime. Nonsupport, defined as persistently failing to provide support you can afford or being at least two months delinquent on a court order, is a Class A misdemeanor with up to a year in jail and a $500 fine. A second offense carries a mandatory minimum of seven days in jail; a third or later offense requires at least 30 days.¹²

The charge becomes flagrant nonsupport, a Class D felony, when the arrearage hits $1,000, when six consecutive months pass with no payment at all, or when the failure leaves the dependent in destitute circumstances. A felony conviction carries one to five years in prison.¹²

Interest on Arrears

Unpaid support in Kentucky accrues interest at 12% per year, compounded annually, from the date a judgment for unpaid support is entered. The compounding matters: a $5,000 arrearage generates $600 in interest in the first year alone, and the balance grows faster each year it sits.

Tax Treatment of Child Support

Child support payments are not tax-deductible for the parent who pays them, and they are not taxable income for the parent who receives them.¹³ The parent with primary custody generally claims the child as a dependent, though parents can agree to alternate the dependency exemption if their court order reflects the arrangement.

1
Kentucky Child Support Website. Kentucky Child Support Interactive
2
Justia. Kentucky Code 403.212 – Child Support Guidelines
3
Kentucky Legislative Research Commission. Kentucky Code 403.211 – Action to Establish or Enforce Child Support
4
Kentucky Legislative Research Commission. Kentucky Code 403.2122 – Shared Parenting Time Credit
5
Commonwealth of Kentucky Cabinet for Health and Family Services. Declaration of Paternity
6
Kentucky Office of the Attorney General. Application for Child Support Services CS-33
7
Kentucky Attorney General. Child Support
8
Kentucky Legislative Research Commission. Kentucky Code 403.215 – Assignment of Wages for Child Support Obligations
9
Kentucky Legislative Research Commission. Kentucky Code 403.213 – Criteria for Modification of Orders for Child Support
10
Kentucky Legislative Research Commission. Kentucky Code 186.570 – Denial or Suspension of License
11
Office of the Law Revision Counsel. 42 US Code 652 – Duties of Secretary
12
Kentucky Legislative Research Commission. Kentucky Code 530.050 – Nonsupport and Flagrant Nonsupport
13
Internal Revenue Service. Tax Information for Non-Custodial Parents