Mississippi House Bill 1662 Establishes Equal Custody Presumption Starting July 2026
Mississippi is poised to fundamentally reshape how courts award custody in divorce cases. House Bill 1662, which passed both legislative chambers in March 2026, creates a rebuttable presumption that children should spend equal time with both parents after divorce. If Governor Tate Reeves signs the bill, Mississippi will become the sixth state with mandatory joint custody presumption when the law takes effect July 1, 2026.
| Key Facts | Details |
|---|---|
| What happened | Mississippi Legislature passed HB 1662 establishing 50-50 custody presumption |
| When | Passed March 2026; effective July 1, 2026 if signed |
| Who's affected | All Mississippi parents in divorce, modification, or paternity cases |
| Key change | Judges must now start from equal parenting time, not sole custody |
| Child support impact | New formula compares both parents' incomes |
| Current status | In conference committee; awaiting Governor's signature |
What House Bill 1662 Actually Changes
House Bill 1662 transforms Mississippi from a "best interests" state with wide judicial discretion into a structured equal-parenting framework. Under current Miss. Code Ann. § 93-5-24, judges have broad authority to award custody based on twelve factors without any presumptive starting point. Many Mississippi judges have historically favored primary custody with one parent and standard visitation (typically every other weekend plus one evening) with the other.
The new law flips this default. According to Mississippi Today's reporting, HB 1662 requires courts to begin every custody determination with the presumption that equal physical custody (50-50 parenting time) serves the child's best interests. Judges who deviate from this presumption must document their reasoning in written findings.
This written-findings requirement represents a significant accountability mechanism. Under the current system, a judge can award 80-20 custody without explaining why equal time was rejected. Under HB 1662, that same judge must specify which statutory factors justified the unequal arrangement and why the presumption was rebutted.
How the New Child Support Formula Works
HB 1662 overhauls Mississippi's child support calculations alongside the custody changes. Current Mississippi child support under Miss. Code Ann. § 43-19-101 uses a percentage-of-income model based primarily on the non-custodial parent's gross income: 14% for one child, 20% for two children, 22% for three children, 24% for four children, and 26% for five or more children.
The new legislation introduces an income-shares model that compares both parents' earnings. Under this approach, courts calculate the total child support obligation based on combined parental income, then allocate that obligation proportionally based on each parent's percentage of the total. When parents share equal custody time, this often results in significantly reduced support payments compared to the current formula because both parents' contributions through direct caregiving are recognized.
For example, consider parents earning $60,000 and $40,000 respectively with two children. Under the current 20% formula, the higher earner as non-custodial parent would pay approximately $1,000 monthly. Under an income-shares model with 50-50 custody, the offset could reduce the net transfer to $200-400 monthly, depending on how Mississippi's specific income-shares table is structured.
Which States Already Have Joint Custody Presumption
Mississippi would join a growing minority of states that have enacted similar legislation. Arizona established joint custody presumption in 2012 under Ariz. Rev. Stat. § 25-403.02. Kentucky followed in 2018 with KRS § 403.270, requiring courts to award joint custody and equal parenting time unless specific findings justify deviation.
Arkansas enacted its presumption in 2021, West Virginia in 2022, and Florida joined in 2023 with Fla. Stat. § 61.13 creating rebuttable presumption of equal time-sharing. Florida's implementation provides a useful comparison because the law has been in effect long enough to generate appellate decisions interpreting the presumption.
Early data from Kentucky, which has tracked outcomes since its 2018 reform, shows that average parenting time for non-primary parents increased from approximately 25% to 40% of overnights within three years of implementation. Contested custody litigation decreased by roughly 15% as the clearer presumption reduced incentives to fight over every percentage point of parenting time.
What Rebuts the Presumption
HB 1662 includes specific factors that can overcome the equal custody presumption. Courts may deviate from 50-50 arrangements when evidence demonstrates domestic violence, substance abuse, child abuse or neglect, abandonment, or conviction of certain felonies. The bill also allows deviation when geographic distance between parents makes equal time impractical for school-age children or when a child's special needs require primary residence with one parent.
Notably absent from the rebuttal factors is "parental preference" or "status quo." Under current Mississippi law, judges often cite the existing custodial arrangement as a factor favoring continuation of that arrangement. HB 1662 explicitly prevents courts from using the pre-filing custody arrangement as justification for unequal post-divorce custody unless other statutory factors apply.
This change particularly impacts parents who served as primary caregivers during the marriage. A parent who stayed home with children while the other parent worked full-time cannot rely solely on that historical caregiving role to secure primary custody. Both parents begin the divorce process on equal footing regarding custody, regardless of their roles during the marriage.
Practical Takeaways for Mississippi Parents
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Document your current parenting involvement now. If HB 1662 becomes law and you seek to rebut the presumption, you will need evidence of the other parent's unfitness, not merely evidence of your superior involvement.
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Understand that 50-50 does not necessarily mean week-on-week-off. Equal parenting time can be structured as 2-2-3 rotations, 5-2-2-5 schedules, or other arrangements totaling equal overnights annually. Courts retain flexibility in structuring how the 50% is achieved.
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Prepare for child support recalculation if you have an existing order. Mississippi courts will need to address whether the new income-shares formula applies to modification requests filed after July 1, 2026, or only to new cases.
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Consider mediation before litigation. The new law strengthens incentives for parents to agree on parenting arrangements rather than asking a judge to apply the presumption rigidly.
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Watch for the Governor's signature. The bill remains in conference committee as of late March 2026, and Governor Reeves has not publicly committed to signing or vetoing the legislation.
Frequently Asked Questions
Does HB 1662 guarantee I will get 50-50 custody?
No, the presumption is rebuttable, not absolute. HB 1662 requires courts to start from the assumption that equal parenting time serves children's best interests, but judges may deviate when evidence demonstrates domestic violence, substance abuse, abuse or neglect, geographic impracticality, or other specified factors. You must still present evidence supporting equal custody.
When does the new Mississippi custody law take effect?
House Bill 1662 contains an effective date of July 1, 2026, contingent on Governor Tate Reeves signing the legislation. Cases filed before July 1, 2026 will proceed under current Miss. Code Ann. § 93-5-24. Cases filed on or after that date will be subject to the new presumption.
Will my existing custody order automatically change to 50-50?
No, existing custody orders remain in effect until modified. To change an existing order after July 1, 2026, you must file a modification petition and demonstrate either that the new law constitutes a material change in circumstances or that other traditional modification grounds exist. Courts will then apply the new presumption when determining the modified arrangement.
How will child support change under HB 1662?
The bill replaces Mississippi's percentage-of-income formula with an income-shares model comparing both parents' earnings. When parents share equal custody time, the higher-earning parent typically pays a reduced support amount that reflects the other parent's direct contribution through caregiving. Support calculations become more complex but often more equitable under shared custody arrangements.
Can I move out of state if I have 50-50 custody?
Relocation with a child typically requires court approval or the other parent's written consent under Miss. Code Ann. § 93-5-23. The 50-50 presumption does not change existing relocation law, but it may make courts less willing to approve relocations that would disrupt an equal custody arrangement. Geographic distance that makes equal parenting time impractical is a factor that can rebut the presumption.
Navigating custody arrangements during divorce requires understanding how Mississippi law applies to your specific family circumstances. Our directory connects you with experienced Mississippi family law attorneys who can explain how HB 1662 may affect your case.
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This article discusses recent news and provides general legal commentary. It does not constitute legal advice. Every case is unique. Consult a qualified family law attorney for advice specific to your situation.