Does 50/50 Custody Mean No Child Support in Louisiana?

Jefferson parish Child Support Lawyer

Many parents assume that if they split parenting time with their children exactly down the middle, neither parent will owe the other child support. It is an understandable assumption—but it is not how Louisiana law works.

Splitting parenting time equally does not automatically cancel child support. Louisiana courts calculate support using both parents' incomes, and the higher earner typically continues paying support to the lower earner, even with a perfect 50/50 schedule.

Below is a breakdown of how Louisiana handles child support under equal custody, how the state calculates obligations, and why the myth persists.

How Louisiana Calculates Support Under Shared Custody

Louisiana calculates child support based on combined parental income and each parent’s proportion of that total, not simply on who has physical custody for more nights

When parents have shared custody, courts use Obligation Worksheet B under La. R.S. 9:315.9 and R.S. 9:315.20. This is a separate calculation from the standard Worksheet A used in sole or primary-custody arrangements. Even parents with exactly equal timeshares will end up with a child support order under Worksheet B if their incomes differ. 

Under Louisiana Revised Statutes 9:315 et seq., the shared-custody calculation generally works as follows:

1. Combine Monthly Incomes: The court adds both parents' gross monthly incomes to establish the total combined income.  

   
   

2. Determine the Basic Obligation: The total income and number of children are cross-referenced against the state's support schedule to find the base support amount.

   
   

3. Calculate Percentage Shares: Each parent’s percentage contribution to the combined total income is calculated.  

   
   

4. Apply the Shared-Custody Multiplier: Under La. R.S. 9:315.9, the basic obligation is multiplied by 1.5. This 50% increase accounts for the duplicated fixed costs of maintaining two fully equipped homes for the child (such as housing, utilities, and bedrooms).  

   
   

5. Cross-Credit and Net the Obligations: Each parent's obligation is calculated based on their income percentage and relative time with the child. These obligations are netted against each other.  

   
   
   
   

The Result: The higher-earning parent usually pays the lower-earning parent, even with an exact 50/50 time split. The size of that payment depends primarily on the income gap—a minor gap leads to a small payment, while a substantial disparity results in a larger one. 

Worksheet A vs. Worksheet B: How Custody Split Changes the Calculation

To understand why 50/50 custody yields a different support result, it helps to see how Louisiana chooses between its two support formulas:

• Worksheet A (Sole or Primary Custody): Used when one parent is designated as the primary/domiciliary parent and the other parent has standard visitation. Under Worksheet A, the non-domiciliary parent's support obligation is calculated as a direct percentage of combined income, without a shared-time multiplier.

• Worksheet B (Shared Custody): Reserved exclusively for arrangements where physical custody is split approximately equally (50/50). It applies a 1.5× multiplier to the basic obligation to account for duplicate household expenses, then cross-credits the obligations based on the exact percentage of time spent in each home. 

Why Income, Not Just Time, Drives the Outcome

Louisiana’s guidelines are built on the principle that a child is entitled to share in each parent’s standard of living relative to that parent’s financial means. An equal timeshare addresses where the child sleeps—it does not equalize what each household can financially provide. If one parent earns significantly more, support ensures the child experiences a comparable standard of living in both homes.

Key Factors Affecting 50/50 Support Calculations

Several additional financial elements influence the final child support order:

• Income Disparity: Larger income gaps directly yield larger support payments.  

• Childcare and Health Insurance: Work-related childcare and health insurance premiums are added to the basic support obligation and divided according to each parent's income percentage.  

• Extraordinary Expenses: Special educational costs, athletic expenses, or medical bills not covered by insurance are factored in separately.

• Voluntary Unemployment or Underemployment: If a parent is capable of earning more but chooses not to, courts may impute potential income to them under La. R.S. 9:315.11.

• Guideline Deviations: Courts may deviate from the mathematical formula under La. R.S. 9:315.1 if strictly applying it would be unjust or inequitable.

Things To Know

• Do not assume 50/50 time means $0 in support. Evaluate how Worksheet B applies to both specific income figures early on.  

• Gather financial records promptly. Gross income documentation, health insurance cost breakdowns, and childcare receipts dictate the calculation.  

• Consult with an Attorney. Small differences in reported income, deductions, or extraordinary expenses can meaningfully change what is owed.

Frequently Asked Questions

Does 50/50 custody eliminate child support in Louisiana?

No. Support is based on combined parental income and state guidelines, not solely on physical custody. A support obligation typically applies when an income disparity exists.  

Which parent pays child support in a 50/50 custody arrangement?

The higher-earning parent pays the lower-earning parent, adjusted for time spent and each parent's proportional share of combined income.  

Can I modify a current child support order if I move to 50/50 custody?

Modifying a child support order generally requires showing a material change in circumstances since the prior order was entered.

Contact Moisant Law Firm

If you have questions about child support, 50/50 custody, or how a custody arrangement may affect your financial obligations, Moisant Law Firm can help. Our family law attorneys represent parents in New Orleans, Orleans Parish, Metairie, Jefferson Parish, and surrounding areas in matters involving child support, child custody, divorce, and modifications. Contact Moisant Law Firm ( CLICK HERE) or call 504-317-1685 today to schedule a consultation and discuss your specific situation with an experienced Louisiana family law attorney.

This article provides general information about Louisiana law and is not legal advice. Child support and custody outcomes depend on the specific facts of each case. Consult a licensed Louisiana family law attorney to discuss your situation.