Child support in Mississippi.
What the state’s own guideline says, where the number comes from, and the one figure that moves it more than anything you will argue about.
See a different stateMississippi
Mississippi is one of the simplest systems in the country and one of the bluntest. The court takes only the paying parent's adjusted gross income and applies a flat percentage based on how many children there are. The other parent's income does not enter the formula at all, and neither does the parenting schedule.
How Mississippi works out the number
Authority: Miss. Code Ann. § 43-19-101 (child support award guidelines) and § 43-19-103 (criteria for overcoming the guideline presumption)Mississippi's guidelines set no overnight threshold and no shared-custody formula. A parent who has the children half the time is still calculated at the full percentage unless the judge deviates under § 43-19-103.
No official calculator
We could not find a calculator or worksheet published by Mississippi itself. Private sites offer them; none of those numbers binds a judge. If you use one, treat the result as an estimate and take the guideline itself to your hearing.
What goes into the calculation
What counts as income
The percentages apply to "adjusted gross income," which starts from gross income including "wages and salary income; income from self-employment; income from commissions" and other listed sources. Overtime, bonuses and second-job earnings fall within wage and salary income. One notable exclusion: gross income does not include "monetary benefits derived from a second household, such as income of the absent parent's current spouse." From gross income the court subtracts "Federal, state and local taxes; Social security contributions; Retirement and disability contributions except any voluntary" ones, plus existing court-ordered child support and, potentially, an allowance for other children living in the obligor's home. The percentages are 14% for one child, 20% for two, 22% for three, 24% for four, and 26% for five or more.
When a judge can treat you as earning more
We could not confirm how this state handles a parent a judge believes is under-earning on purpose.
If you do not earn much
Mississippi does not publish a self-support reserve or a formula for low-income paying parents. What the statute does require is a written finding at both ends of the range: "In cases in which the adjusted gross income as defined in this section is more than One Hundred Thousand Dollars ($100,000.00) or less than Ten Thousand Dollars ($10,000.00), the court shall make a written finding in the record as to whether or not the application of the guidelines established in this section is reasonable." The state's own 2022 guidelines review noted Mississippi was "one of only three states not to provide a formula to adjust for low-income" and recommended one; we found no confirmation that the recommendation has been enacted.
Childcare and health insurance
Neither is built into the percentages. Medical support is mandatory — "All orders involving support of minor children, as a matter of law, shall include reasonable medical support." Childcare that lets a parent work is one of the § 43-19-103 criteria a judge can use to adjust the award, and in practice judges add daycare, health insurance and similar costs on top of the percentage figure rather than inside it.
Private school, special needs, activities
These are deviation criteria under § 43-19-103, not line items. The listed criteria include extraordinary expenses, the child's special needs, the age of the child, the child's own independent income, seasonal variation in a parent's income, childcare expenses, available assets, and a catch-all for "any other adjustment which is needed to achieve an equitable result."
When a judge can depart from the number
The guideline amount is rebuttably presumed correct. It "may be overcome by a judicial or administrative body awarding or modifying the child support award by making a written finding or specific finding on the record that the application of the guidelines would be unjust or inappropriate in a particular case as determined according to the following criteria," and § 43-19-103 then lists them.
Two things stand out. Support in Mississippi runs to 21 — three years longer than most states — which is a very large difference in total dollars. And the formula ignores both the other parent's income and your parenting time entirely, so a 50/50 schedule buys you nothing automatically. If you have the children half the time, you have to ask the judge to deviate and give reasons.
Later on
When it ends
Mississippi has the highest age in the country. "The age of majority in Mississippi is 21 years old," and support runs until the child reaches majority or is emancipated. Emancipation happens automatically on marriage, full-time military service, or a felony conviction carrying a sentence of two or more years. On a parent's petition, a court may also find emancipation where the child stops attending school full time after 18 (unless disabled), lives independently while employed full time before 21, or lives with someone else without the parents' approval. Arrears can still be collected past 21.
College and support after 18
Because support runs to 21, Mississippi orders routinely cover the college years without needing a separate college-support order. Whether a particular parent must pay tuition specifically, as opposed to ordinary support, depends on the order and on case law we could not verify from an official source.
Changing the amount later
A substantial change of circumstances. Parents receiving state child support services can also get a review every three years without having to prove a substantial change first.
How far back a change can reach
We could not confirm this state’s rule on how far back an order or a change can be applied. It matters: in some states the clock starts the day you file, so filing late costs money you do not get back.
If someone stops paying
Mississippi's Division of Child Support Enforcement publishes: immediate income withholding from wages, commissions, workers' compensation, disability, annuities and retirement; driver's and professional license suspension when a parent is a month behind, defaults on a payment plan, or ignores a subpoena, with 90 days' notice before the first suspension; federal and state tax refund intercept ($150 or more in arrears for assistance cases, $500 for others); credit bureau reporting after 60 days unpaid; liens against workers' compensation and personal injury claims; freezing and seizing bank accounts; passport denial or revocation at $2,500 or more in arrears; and contempt proceedings that can lead to jail unless the parent shows an inability to pay.
What we could not confirm
- Mississippi's official guidelines document is from 2020, and the state's own 2022 review recommended adding lower percentages for low-income parents and adjusting the rates. We could not confirm on a Mississippi government site that any of those changes became law, so treat the 14/20/22/24/26 percentages as current but ask your attorney or the chancery clerk whether the legislature has changed them. We also could not confirm Mississippi's standard for imputing income to an unemployed parent, or how far back an order can reach.
Compare all fifty states
The overnight thresholds, the ending ages and the college rules, side by side.