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How Mississippi Calculates Child Support

Mississippi uses the Percentage of Obligor Income model to determine child support obligations. This page explains the guidelines, formula, and key factors.

Model Type

Percentage of Obligor Income (adjusted gross income) (statutory guidelines)

Presumptive child support is set as a percentage of the noncustodial parent’s adjusted gross income by number of children, subject to statutory findings/deviations and special handling at very low/high incomes.

Income Basis & Definitions

Income Basis:

adjusted gross income (noncustodial parent) as defined in statute/guidelines

Number Of Children On Order

Selects the applicable percentage of adjusted gross income.

Source: Percentage schedule by # of children (Miss. Code §43-19-101)
Noncustodial Parent Adjusted Gross Income

Adjusted gross income for the obligor as defined (gross income minus specified adjustments).

Source: Definition of adjusted gross income; computation inputs
Included Income Types

Wages, salary, commissions/bonuses, self-employment, investment, etc., per statutory definitions.

Source: Gross income definition (included sources)

Parenting Time Handling

Custody Or Visitation Pattern

Parenting time is typically addressed via deviations rather than a fixed credit; calculator should capture visitation/custody facts as deviation flags.

Source: Deviation factors (custody/visitation considerations)

Deductions & Adjustments

Allowable Adjustments To Gross Income

Statute/guidelines specify allowable adjustments (e.g., FICA/Medicare, taxes, mandatory retirement, etc., as applicable).

Source: Allowable adjustments to compute adjusted gross income
Preexisting Child Support Paid

Existing child support obligations may be a deviation/adjustment factor.

Source: Deviation factors / other dependents

Add-Ons & Allocation

Work Related Childcare Costs

Childcare can be considered as additional support/deviation depending on order.

Source: Additional awards / deviation factors for childcare and related expenses
Child Health Insurance Premium Out Of Pocket

Health insurance/medical support can be allocated; calculator needs child’s premium share.

Source: Medical support / health insurance provisions
Extraordinary Medical Education Special Needs

Extraordinary medical, education, or special needs expenses can support deviations; calculator needs amount and allocation.

Source: Deviation factors: extraordinary medical/education/special needs

Caps, Minimums & Deviations

Income Threshold Findings

Guidelines address very low/high AGI with findings/deviation handling; calculator should flag when AGI falls outside guideline range triggering special handling.

Source: Special handling / findings for low/high income (Miss. Code §43-19-101)
Minimum Order Low Income Adjustment

Low-income handling is by statutory discretion/findings; capture as flag + court-determined amount.

Source: Low income considerations in statute/guidelines
Deviation Factors Enumeration

Deviation factors are enumerated in statute/guidelines; model as enumerated flags with notes.

Source: Deviation factors list

Try the Calculator

Use our Mississippi child support calculator to estimate your obligation.

Need Legal Help?

A family lawyer can help interpret these guidelines for your specific case.