Child support in North Carolina is calculated using the statewide North Carolina Child Support Guidelines. The guidelines combine both parents’ incomes, account for how many overnights the children spend with each parent, and add costs such as health insurance and work-related childcare. The result is a presumptive figure that courts generally follow unless there is a good reason to deviate. That figure can change later if circumstances change in a substantial way.
For separating parents, the numbers can feel like the most stressful part of the process. Will I be able to afford this? Will my children have what they need? Is the other parent being honest about their income? At Kurtz & Blum, our family law team has helped Raleigh and Wake County parents work through these questions for decades. Understanding how the calculation works is the first step toward an outcome that feels fair.
How North Carolina Sets Child Support Using the Guidelines
The current North Carolina Child Support Guidelines took effect on January 1, 2023, and they apply to child support actions heard on or after that date. Revised guidelines take effect for actions heard on or after January 1, 2027, so some of the figures below will change for cases heard from that date.
The guidelines rest on a simple idea: children should receive the share of parental income they would have received if the household had stayed together. To get there, the court adds the parents’ incomes together, finds the basic support obligation for that combined income and number of children on the guidelines schedule, and then divides that obligation between the parents in proportion to what each earns.
Under the 2023 guidelines, the schedule covers combined adjusted gross incomes up to $40,000 per month ($480,000 per year), and the 2027 guidelines raise that ceiling to $50,000 per month. When combined income is higher than the ceiling, the schedule no longer applies, and the court sets support based on the children’s reasonable needs and each parent’s ability to pay.
Which Incomes and Expenses Factor Into the Calculation
Income under the guidelines means a parent’s actual gross income from any source. It can include wages and salary, bonuses and commissions, self-employment and business income, and certain benefits. For business owners and parents with variable pay, simply identifying income can become the most contested part of the case.
The guidelines also allow a court to impute income to a parent in limited situations. Potential income can be attributed to a parent only when the court finds that the parent’s unemployment or underemployment is the result of bad faith or a deliberate suppression of income. Imputing income is not automatic, and the court must consider the parent’s actual circumstances.
Once the basic obligation is set, several child-related costs are added and shared between the parents in proportion to their incomes:
- Health insurance premiums for the children, counting only the portion of the premium that covers them
- Work-related childcare that a parent pays because of employment or a job search
- Extraordinary expenses the court finds reasonable, necessary, and in the child’s best interest, such as certain special educational needs or transportation between homes
Small errors in these numbers add up over years of payments, so we build an accurate financial picture before any figure goes to the court.
The Three Worksheets and When Each One Applies
The guidelines use three worksheets, and which one applies depends on the custody arrangement.
Worksheet A applies when one parent has primary physical custody, which the guidelines define as the children living with that parent for 243 or more nights a year.
Worksheet B applies to shared custody, where the children live with each parent for at least 123 nights during the year and each parent covers the children’s expenses during their time.
Worksheet C applies to split custody, where each parent has primary custody of at least one of the children.
The worksheet matters because overnights change the math. A shift of a few nights a year can move a family from one worksheet to another, which is one reason child custody and child support are so closely connected.
When a Court Will Deviate From the Guideline Amount
The guideline figure is presumed to be correct, but it is not the final word in every case. A court may deviate if it finds that applying the guidelines would not meet or would exceed the child’s reasonable needs or would be otherwise unjust or inappropriate.
Deviation is not a casual decision. The court must make written findings that state the presumptive guideline amount, determine the child’s reasonable needs and each parent’s ability to pay, explain why the guideline amount is inadequate, excessive, or unjust, and state the basis for the amount it orders. A parent asking for a deviation needs strong documentation and a clear legal argument to support it.
What Can Change Child Support After It Is Set
Life rarely stands still after a support order is entered. Under North Carolina law, a child support order can be modified when there has been a substantial change in circumstances. Common examples include a significant change in either parent’s income, a change in custody or parenting time, and a change in the child’s needs.
The guidelines include a helpful presumption here. If an order was entered at least three years before a request to modify it, a difference of 15% or more between the current amount and the amount the guidelines would produce today is presumed to be a substantial change.
Timing matters too. Under N.C. Gen. Stat. 50-13.10, each child support payment becomes vested when it comes due, which means past-due payments generally cannot be reduced after the fact. If your circumstances change, waiting to file can cost you. A written motion filed with notice to the other party is what allows future payments to be adjusted.
How Experienced Local Counsel Protects Your Interests
The guidelines are a formula, but the inputs are where cases are won or lost. Which income counts, whether income should be imputed, how many overnights each parent truly has, and whether an expense is reasonable can all be disputed.
At Kurtz & Blum, our team approach means your case benefits from more than one experienced family law attorney. We review the financial records together, test the numbers from both sides, and prepare to present your position clearly, whether that happens at the negotiating table or in a Wake County courtroom. Every case is different, and we will always give you honest, realistic advice about what to expect. You can learn more about how we handle these matters on our child support page.
Talk With Our Raleigh Family Law Team
Child support affects your budget, your children’s daily lives, and your peace of mind for years. You deserve to understand where the numbers come from and to have a team in your corner making sure they are right.
If you are facing a new child support case or need to revisit an existing order, schedule a consultation with our family law team. We will walk through your situation, explain your options in plain language, and help you move forward with confidence.
Frequently Asked Questions
How is child support calculated in North Carolina?
North Carolina uses statewide Child Support Guidelines that combine both parents’ incomes, find the basic support obligation for that income and number of children, and divide it between the parents in proportion to their incomes. Health insurance for the children, work-related childcare, and certain extraordinary expenses are added. The result is a presumptive amount that courts generally follow.
Can child support be different from the guideline amount?
Yes. A court can deviate from the guideline figure if applying it would not meet or would exceed the child’s reasonable needs or would be unjust or inappropriate. The court must make written findings explaining the deviation, so the parent requesting it needs solid evidence and a clear argument.
Which parent pays child support?
The obligation is based on both parents’ incomes and the custody arrangement. In many cases, the parent with fewer overnights or the higher income pays support to the other parent, but the worksheet that applies to your custody schedule determines the specific amount.
Can child support be changed after it is set?
Yes. Support can be modified when there is a substantial change in circumstances, such as a significant income change, a shift in custody, or a change in the child’s needs. Because past-due payments generally cannot be reduced retroactively, it is important to file a motion promptly once circumstances change.
Do I need an attorney for a child support matter in Wake County?
Parents can handle a child support case on their own, but an attorney helps make sure incomes and expenses are represented accurately and that the outcome is fair. Legal guidance is especially valuable when income is disputed, a parent is self-employed, or a deviation from the guidelines is on the table.







