Mississippi uses a percentage-of-AGI model per Miss. Code §43-19-101. The obligor pays a fixed percentage of their adjusted gross income: 14% for 1 child, 20% for 2, 22% for 3, 24% for 4, 26% for 5+.
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Mississippi calculates child support using the Percentage of obligor adjusted gross income established under Miss. Code §43-19-101. This is a statutory formula that leaves limited room for judicial discretion on the base calculation amount, ensuring consistency and predictability for families across the state.
Monthly child support = obligor AGI × percentage (14/20/22/24/26% based on number of children).
The calculation begins with determining each parent's net disposable income, which includes virtually all sources of income minus taxes, mandatory payroll deductions, and certain hardship deductions. The court then applies the statutory formula using the time each parent has primary physical responsibility for the children and the applicable income allocation brackets.
Beyond the base formula amount, Mississippirequires additional contributions for mandatory add-on expenses. These typically include childcare costs necessary for the custodial parent's employment or education, uninsured healthcare expenses for the children, and in some cases, educational and travel costs. These add-ons are split between parents in proportion to their respective incomes.
Primary statute: Miss. Code §43-19-101
14% of AGI for 1 child, 20% for 2, 22% for 3, 24% for 4, 26% for 5+.
Below $10,000/year AGI: court must make written finding on reasonableness.
Above $100,000/year AGI: court must make written finding on whether guideline is reasonable.
Uses adjusted gross income (gross minus taxes and certain deductions).
Simple percentage model — similar to Texas but based on AGI not net resources.
No-fault divorce requires BOTH spouses’ consent in Mississippi.
Fault affects both property division and alimony.
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Residency Requirement
6-month bona fide residency required (§93-5-5)
Mandatory Waiting Period
60-day waiting period for irreconcilable differences divorce
No-Fault Ground
Irreconcilable differences (§93-5-2) — REQUIRES BOTH SPOUSES’ CONSENT
State Income Tax
4% flat (first $10,000 exempt) — Build-Up Mississippi Act phase-down
Mississippi uses the Percentage of obligor adjusted gross income under Miss. Code §43-19-101. Mississippi uses a percentage-of-AGI model per Miss. Code §43-19-101. The obligor pays a fixed percentage of their adjusted gross income: 14% for 1 child, 20% for 2, 22% for 3, 24% for 4, 26% for 5+.
Key factors include both parents' income, the number of children, custodial time share, mandatory add-on expenses (childcare, health insurance), and any applicable deductions. 14% of AGI for 1 child, 20% for 2, 22% for 3, 24% for 4, 26% for 5+.
Yes. Either parent can request a modification if there has been a material change in circumstances, such as a significant change in income, custody arrangements, or the needs of the child. The court will recalculate support using the same statutory formula.
Monthly child support = obligor AGI × percentage (14/20/22/24/26% based on number of children).
Get a personalized child support calculation based on Mississippi's actual statutory formula.
Start My Free MississippiEstimate →This tool provides educational estimates based on Mississippi family law and does not constitute legal advice. Child support calculations are approximations of the statutory formula and may differ from court-ordered amounts. Consult a licensed Mississippi family law attorney before making decisions. Primary statute: Miss. Code §43-19-101.