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North Carolina Statutory Child Support Calculator

North Carolina calculates child support under N.C. Gen. Stat. § 50-13.4 using the Income Shares Model. The state utilizes Worksheet A (Form AOC-CV-627) for primary custody and Worksheet B (Form AOC-CV-628) for shared physical custody when both parents exercise at least 123 overnights per year (~33.7%). Worksheet B applies a 1.5x basic obligation multiplier to reflect dual household overhead. Official statutory authority: N.C. Gen. Stat. § 50-13.4.

Specialized Scenarios:50/50 Shared Custody ↓High-Income Deviation ↓Sole Custody Guidelines ↓
Statutory Scope: This page calculates estimated Child Support under N.C. Gen. Stat. § 50-13.4. It does not compute Spousal Support (Alimony). Child support is determined strictly for minor children.

Statutory Case Parameters

North Carolina (NC)
1Governing Jurisdiction
Statutory Basis: N.C. Gen. Stat. § 50-13.4
2Monthly Incomes & Allowable Deductions
$
Pre-tax salary, wages, business revenue
$
Mandatory union dues & retirement
$
Pre-tax salary, wages, business revenue
$
Mandatory union dues & retirement
3Number of Dependent Children Covered
4Annual Custody Overnights (Out of 365)
Parent A: 183 Overnights (50.1%) Parent B: 182 Overnights (49.9%)
0 nights (Sole Parent B)183 nights (Equal 50/50)365 nights (Sole Parent A)
5Children's Health Insurance Premium
$
Only incremental premium for child(ren)
Cost is credited or prorated by income shares
Parent A (Obligor)NC Guideline
Estimated Baseline Guideline Amount
$391 / mo
Annualized: $4,692 / year
⚠️ESTIMATE ONLY — NOT LEGAL ADVICE

This automated tool calculates a preliminary statutory guideline estimate. Actual child support orders are determined by a judge and frequently deviate based on health insurance, childcare, taxes, and judicial discretion.

Notice: This tool calculates Child Support, not Spousal Support (Alimony).
Combined Income$12,000
Basic Support Total$2,815
Parent A Share62.5%
Parent B Share37.5%
Independent Legal NoticeNC Family Law Guidance

When to Consult a Licensed North Carolina Family Law Attorney

Judges in North Carolina routinely depart from statutory guideline math when specific deviation factors exist (unusual travel costs for visitation, private school tuition, extraordinary medical needs, or dual-household expenses).

  • ■Evaluate discretionary deviation thresholds for your specific jurisdiction
  • ■Verify allowable self-employment deductions & net resource offsets
  • ■Draft enforceable formal stipulations with the clerk of court
Find Licensed Counsel via Official Bar Directory →

Alimonify is an independent informational calculation tool and is not a law firm, legal aid provider, or certified lawyer referral service. Alimonify does not provide legal representation, legal advice, or attorney referral services.

Statutory Framework Analysis

North Carolina Legal Mechanics & Court Standards

Legislative Formula & Terminology

Combined gross monthly incomes determine basic support from the NC schedule table. In sole custody (Worksheet A), the non-custodial parent pays their income share. In shared custody (Worksheet B, 123+ overnights), basic support is multiplied by 1.5 and cross-allocated by reciprocal overnight percentages.

  • Custodial Parent Term: Primary Physical Custody Parent
  • Obligor Parent Term: Non-Custodial Parent (Obligor)
  • Shared Custody Regime: Shared Physical Custody (≥ 123 Overnights / Worksheet B)
  • Official Court Form: Child Support Guidelines Worksheet B (Shared Custody) (Form AOC-CV-628)

Key Statutory Thresholds (2025/2026)

Shared Custody Trigger123 Overnights
Triggers cross-credit calculation
Statutory Cap$30,000/mo
$360,000/yr ceiling
Self-Support Reserve$1,150/mo
Protected subsistence income
Minimum Order Floor$50/mo
Statutory floor for indigent payors
Custody & Income Case Law Compendium

North Carolina Custody Schedules, High-Income Caps & Precedent

How North Carolina family courts apply N.C. Gen. Stat. § 50-13.4 across 50/50 equal parenting schedules, high-net-worth income deviations, and traditional sole physical custody orders:

Equal Parenting Time

North Carolina: 50/50 Shared Custody

Load 50/50 Shared Custody Preset ↑

Statutory Rule: Under N.C. Gen. Stat. § 50-13.4, equal 50/50 custody meets the 123-overnight threshold, mandating Worksheet B with a 1.5x basic obligation multiplier.

Key Statutory Rules

  • Equal 50/50 custody exceeds the 123-overnight threshold, mandating North Carolina Worksheet B (Form AOC-CV-628).
  • Basic support is multiplied by 1.5 to cover duplicated expenses in both parental households.
  • Each parent’s grossed-up obligation is multiplied by 50% (the time spent with the other parent), and the higher earner pays the difference.
  • Uninsured medical expenses over $250/year and childcare are apportioned strictly by income shares.

Judicial Application & Controlling Case Law

North Carolina District Court judges strictly enforce Worksheet B math without discretionary variance unless deviation is pleaded.

Controlling Authority: N.C. Gen. Stat. § 50-13.4; Biggs v. Greer, 136 N.C. App. 294 (2000).

Practical Calculation Benchmark

Parent A earning $6,000/mo gross and Parent B earning $4,000/mo gross with 2 children at 50/50 yields Parent A paying $327/month.

Cap Deviation Analysis

North Carolina: High-Income Deviation

Load High-Income Deviation Preset ↑

Statutory Rule: Under N.C. Gen. Stat. § 50-13.4, guidelines cap at $30,000/mo ($360k/yr). Support on excess income is determined based on the reasonable needs of the child.

Key Statutory Rules

  • The North Carolina child support guidelines apply up to $30,000/month ($360,000/year) in combined gross parental income.
  • When income exceeds $30,000/mo, N.C. Gen. Stat. § 50-13.4(c) instructs the court to determine support on an individualized case-by-case basis.
  • The court starts with the $30,000 table figure ($4,185/mo for 2 children) and awards supplemental support only to the extent justified by proven expenses.
  • Parties must submit detailed financial affidavits establishing historical spending during the intact marriage.

Judicial Application & Controlling Case Law

North Carolina judges balance reasonable lifestyle parity against preventing speculative windfalls.

Controlling Authority: N.C. Gen. Stat. § 50-13.4(c); Loosvelt v. Brown, 235 N.C. App. 88 (2014).

Practical Calculation Benchmark

On $50,000/mo combined income, court orders the $4,185/mo base guideline plus $1,800/mo for private tennis coaching and tutoring.

Primary Custodian Baseline

North Carolina: Sole Custody Guidelines

Load Sole Custody Guidelines Preset ↑

Statutory Rule: Worksheet A (Form AOC-CV-627) applies when the non-custodial parent has fewer than 123 overnights per year.

Key Statutory Rules

  • When the non-custodial parent has fewer than 123 overnights per year, North Carolina Worksheet A (Form AOC-CV-627) strictly governs.
  • No parenting-time discount or multiplier is applied under Worksheet A.
  • The obligor pays their pro-rata share of the basic table obligation, adjusted for health insurance and childcare.
  • Low-income obligors are protected by the Self-Support Reserve and statutory $50/month floor.

Judicial Application & Controlling Case Law

North Carolina judges mandate Worksheet A for sole custody, entering deviations only upon specific written findings.

Controlling Authority: N.C. Gen. Stat. § 50-13.4; Rose v. Rose, 108 N.C. App. 90 (1992).

Practical Calculation Benchmark

Non-custodial parent earning $5,000/mo gross where custodial parent earns $3,000/mo (62.5% share) pays $1,163/month for 2 children ($1,860 table).

Statutory Adjustment Guide

Allowable Income Deductions in North Carolina

Under N.C. Gen. Stat. § 50-13.4, gross earnings are adjusted for mandatory expenses prior to applying the guideline schedule. The following statutory deductions reduce parental support obligations:

N.C. Gen. Stat. § 50-13.4

Pre-existing Court-Ordered Child Support Actually Paid

Support orders actively paid for other children from prior relationships.

NC Guidelines (Responsibility for Other Children)

Responsibility for Other Biological or Adopted Children

Adjustment for other natural or adopted children living in the parent’s household.

Judicial Discretion

Grounds for Departure from North Carolina Guideline Math

Statutory child support formulas carry a rebuttable presumption of correctness. However, family court judges may depart from formula yields upon written findings of extraordinary circumstances:

⚖️ Worksheet B Shared Custody 1.5x Multiplier

Mandatory statutory application when both parents have at least 123 overnights per year.

⚖️ Extraordinary Expenses (Medical / Dental / Psychological)

Uninsured medical costs exceeding $250 per child per year.

⚖️ Special Needs or Educational Enrichment

Special education, tutoring, or recognized athletic/artistic talent development.

⚖️ Extraordinary Travel Expenses for Visitation

Long-distance travel costs incurred to maintain contact with the minor child.

Mathematical Case Study

North Carolina Worksheet B Shared Custody Example (2 Children, 183 Overnights)

Case Facts: Parent A earns $6,000/mo gross (60%); Parent B earns $4,000/mo gross (40%). Both share equal 50/50 custody (183 overnights).
Step 1: Combined Gross Income$6,000 + $4,000 = $10,000/mo

Parent A represents 60.0% of combined income; Parent B represents 40.0%.

Step 2: Basic Obligation & 1.5x Multiplier$2,180 × 1.5 = $3,270/mo

Under Worksheet B, basic support ($2,180) is multiplied by 1.5 to cover duplicated household expenses.

Step 3: Apportion by Overnights with Other ParentParent A: $3,270 × 60% × 50% = $981; Parent B: $3,270 × 40% × 50% = $654

Each parent’s proportional share is multiplied by the other parent’s custody percentage (50%).

Step 4: Calculate Net Difference$981 - $654 = $327/mo

Parent A pays the net differential between the two obligations.

💡 Calculated Judicial Order: Parent A pays $327/month in guideline child support to Parent B under Worksheet B.
State Legal Questions

North Carolina Child Support Guidelines FAQ

What is the 123 overnights rule for North Carolina child support?

Under the North Carolina Child Support Guidelines, shared physical custody begins when each parent has the child for at least 123 overnights per year (approximately one-third of the year). When this threshold is met, parents calculate child support using Worksheet B (Form AOC-CV-628) rather than Worksheet A.

How does Worksheet B calculate child support in 50/50 custody?

Under Worksheet B, the basic child support obligation from the statutory schedule is multiplied by 1.5 (150%) to reflect the duplicated costs of maintaining two separate homes. Each parent’s share of this grossed-up obligation is multiplied by the percentage of time the child spends with the OTHER parent. The higher-obligation parent pays the net difference.

What happens when combined income exceeds $30,000/month in North Carolina?

Pursuant to N.C. Gen. Stat. § 50-13.4(c), when combined parental income exceeds $30,000 per month ($360,000 annually), the guidelines cease to be strictly binding. The court orders the guideline maximum as a presumptive base and sets child support on an individualized case-by-case evaluation of the child’s reasonable lifestyle needs.

How are health insurance and childcare costs apportioned in North Carolina?

Out-of-pocket health insurance premiums and verified work-related childcare expenses are added to the basic support obligation and divided pro-rata according to each parent’s percentage of combined gross income. Whichever parent pays the provider receives a direct dollar-for-dollar credit.

Administrative & Interstate Framework

North Carolina Title IV-D Agency & Interstate Support Framework

Official State Enforcement

North Carolina Administrative Office of the Courts

Title IV-D child support services in North Carolina are administered through the North Carolina Administrative Office of the Courts. The agency manages automated income withholding, interstate order registration, federal parent locator queries (FPLS), and medical support enforcement under N.C. Gen. Stat. § 50-13.4.

Mandatory Court Worksheet: Child Support Guidelines Worksheet B (Shared Custody) (Form AOC-CV-628)
Interstate Moves & UIFSA

Continuing Exclusive Jurisdiction (CEJ)

If either parent or child relocates outside of North Carolina, modification and collection proceedings are strictly governed by the Uniform Interstate Family Support Act (UIFSA, 42 U.S.C. § 666(f)) and the Full Faith and Credit for Child Support Orders Act (28 U.S.C. § 1738B).

Read Interstate Child Support & UIFSA Guide →