Do NC’s 2027 Child Support Guidelines Change My Existing Order?

North Carolina’s revised Child Support Guidelines apply to actions heard on or after January 1, 2027. If you already have a child support order, here is what changes, what does not, and how to decide whether to ask the court for a new amount.

The short answer: no automatic change

A new guideline year does not rewrite existing orders. If a judge ordered you to pay or receive a set amount in 2024, that amount stays the same in 2027 unless a court enters a new order. Keep paying, and keep tracking payments received, exactly as the current order says. Changing what you pay on your own, even if a calculator suggests a different number, can create arrears and contempt exposure.

How modification works in North Carolina

A child support order can be modified when the parent asking for the change shows a substantial change in circumstances since the order was entered. That is done by filing a motion in the case where the order was entered, or through North Carolina Child Support Services if your case is handled there.

The 15 percent, three-year presumption

The guidelines include a shortcut. When an existing order is at least three years old, and applying the current guidelines to current facts produces an amount that differs from the existing order by at least 15 percent, the difference is presumed to be a substantial change in circumstances. It is a presumption, not an automatic entitlement, and the court still applies the governing law to the facts.

Example: a 2022 order requires $800 a month. Under current incomes and the 2027 schedule, the guideline amount would be $940. That is a 17.5 percent difference on an order more than three years old, so the presumption may apply. If the new amount were $860, a 7.5 percent difference, the parent seeking the change would need to show a substantial change some other way.

Other changes that can justify a new order

• A significant, involuntary change in either parent’s income.
• A change in custody or in the number of overnights, especially one that crosses the 123-night shared-custody threshold or the 243-night primary-custody line.
• New child-care costs, a change in health insurance, or new extraordinary expenses.
• A child’s changing needs.

Timing: why you should not wait

Support payments that come due under an order generally vest when they become due, and North Carolina courts generally cannot reduce past-due payments that accrued before a motion to modify was filed. If your circumstances have changed, the filing date of your motion matters. Waiting can cost you money whichever side you are on.

Should you file in 2027?

1. Run the numbers. Use our 2027 North Carolina child support calculator with current, documented incomes and overnights.
2. Compare to your order. Calculate the percentage difference and note when the existing order was entered.
3. Check what else changed. Income, custody, insurance, child care, and the child’s needs.
4. Get advice before filing. A modification request can open up issues you did not expect, including the other parent’s claims about your income.

Where Lake Norman orders are modified

Motions are usually filed in the county where the order was entered: Mecklenburg County District Court for Huntersville, Cornelius, and most of Davidson; Iredell County for Mooresville; Lincoln County for Denver. See our Areas We Serve pages for courthouse details.

Related reading

• 2027 NC child support: worked examples
• How our 2027 calculator was built and tested
• Child support help from Adkins Law
• Child support document organizer

General information about North Carolina law, not legal advice. Sources: North Carolina Judicial Branch announcement of the 2027 Child Support Guidelines and AOC-A-162 (Rev. 1/27). Reviewed November 2026.