North Carolina Child Support Calculator & Guide (2025)
Overview of North Carolina Child Support
North Carolina calculates child support using the Income Shares Model as defined in N.C.G.S. 50-13.4. This model estimates the amount parents would spend on their children if the family were intact, then divides that obligation based on each parent's proportional share of combined gross income.
North Carolina is unique in using three different worksheets based on the custody arrangement: Worksheet A for primary custody, Worksheet B for shared custody, and Worksheet C for split custody. Each worksheet applies a different calculation method to ensure support reflects the actual parenting arrangement.
How Child Support Is Calculated in North Carolina
The calculation follows these steps:
- Determine gross income for both parents (salary, wages, bonuses, commissions, self-employment, disability, Social Security, unemployment, pensions, rental income)
- Combine gross incomes to get total household income
- Find the basic obligation from the NC Child Support Guidelines schedule based on combined income and number of children
- Add health insurance premiums for the child and work-related childcare expenses
- Add extraordinary expenses such as special education or extraordinary medical costs
- Select the appropriate worksheet (A, B, or C) based on custody arrangement
- Allocate proportionally — each parent's share is based on their percentage of combined income
Worksheet Types
| Worksheet | Custody Type | When Used |
|---|---|---|
| Worksheet A | Primary Custody | One parent has the child for 243+ overnights/year |
| Worksheet B | Shared Custody | Non-custodial parent has 123+ overnights/year |
| Worksheet C | Split Custody | Children are divided between parents |
Example Calculation (Worksheet A — Primary Custody)
| Factor | Parent A | Parent B |
|---|---|---|
| Monthly Gross Income | $3,800 | $2,200 |
| Combined Income | $6,000 | |
| Basic Obligation (2 children) | ~$1,500 | |
| Income Share | 63.3% | 36.7% |
| Each Parent's Share | $950 | $550 |
| Parent A pays Parent B | ~$950/month | |
Key Factors in North Carolina Calculations
Income Definition
North Carolina uses gross income (before taxes and deductions). Income sources include wages, salary, bonuses, commissions, self-employment income, Social Security benefits, disability benefits, unemployment compensation, pension and retirement income, rental income, workers' compensation, and any other form of recurring income. The court may impute income based on earning capacity for voluntarily unemployed or underemployed parents.
Shared Custody (Worksheet B)
When the non-custodial parent has the child for 123 or more overnights per year, Worksheet B applies. This shared custody calculation adjusts the support amount by considering the number of overnights with each parent, reducing the obligation to account for the non-custodial parent's direct expenses during their parenting time.
Health Insurance and Childcare
Health insurance premiums for the child and work-related childcare costs are added to the basic support obligation and shared proportionally between parents. These additions ensure both parents contribute to the full cost of raising the child.
Minimum and Maximum Amounts
North Carolina sets a minimum support order of $50 per month per child. This minimum applies even when the paying parent's income is very low. There is no fixed statutory maximum — the guidelines apply to all income levels, and the court has discretion for high-income cases.
North Carolina also provides a self-support reserve to ensure the paying parent retains enough income to meet their own basic needs. If the support obligation would reduce the obligor below the self-support reserve, the obligation may be reduced.
Modification and Enforcement
Modification
Either parent can request a modification by filing a motion with the clerk of court. Modification is warranted when:
- A substantial change in circumstances has occurred since the last order
- Three years have passed — NC allows a guidelines review without showing changed circumstances
- Either parent's income has changed significantly
- Custody or visitation arrangements have changed
- A child has been emancipated
Enforcement
The North Carolina Department of Health and Human Services, Division of Child Support Enforcement enforces child support through:
- Income withholding orders
- Tax refund interception (state and federal)
- Driver's license suspension
- Professional license suspension
- Credit bureau reporting
- Property liens
- Contempt of court proceedings
- Passport denial for arrears exceeding $2,500
Get your North Carolina child support estimate now: Use our free calculator to see what you might owe or receive under North Carolina guidelines.
Frequently Asked Questions
How is child support calculated in North Carolina?
What is the minimum child support in North Carolina?
Does shared custody affect child support in North Carolina?
What income is counted for North Carolina child support?
How do I modify child support in North Carolina?
Who enforces child support in North Carolina?
What are the three custody worksheets in North Carolina?
Legal Disclaimer
This article is for informational purposes only and does not constitute legal advice. Child support laws vary by state and are subject to change. For advice specific to your situation, please consult a qualified family law attorney in your jurisdiction.