Missouri uses a specific math formula to figure out how much child support one parent owes the other. This formula is called the "income shares model," which means the court looks at both parents' incomes and divides the child support responsibility between them based on what each parent earns.
Free Guide to Making Stewed Tomatoes at Home →
The first step is determining each parent's "adjusted gross income." This includes wages from employment, but also other income sources like bonuses, overtime pay, self-employment income, rental income, and investment earnings. The court may also count unemployment benefits, workers' compensation, and disability payments in some cases. Income that is not counted includes public assistance payments like SNAP (food stamps) or Temporary Assistance (TANF).
Once the court knows both parents' combined income, it looks up the amount in Missouri's Child Support Guidelines. For example, if the combined adjusted gross income is $2,000 per month, the guideline amount for one child is approximately $358 per month. For two children, it is about $572 per month. For three children, it is roughly $723 per month. These amounts increase with higher combined incomes. A parent earning 60% of the combined income would owe 60% of the guideline amount.
The guideline amounts assume parents have physical custody part of the time. If one parent has the children 90% of the time or more, the calculation can be different. The court also adjusts the amount based on other factors, including childcare costs, health insurance expenses, and extraordinary educational expenses.
Missouri law allows for "deviation" from the guideline amount if following it would be unfair. Judges consider factors like each child's special needs, the standard of living the child would have if both parents were still together, and any significant parenting time differences. The judge must write down the reason if the final order differs from the guideline amount.
Practical takeaway: Understanding how income is counted and what the guidelines suggest can help you anticipate what a child support order might look like. You can find Missouri's current guideline amounts on the state judiciary website, and knowing your adjusted gross income and your co-parent's income will help you understand where your situation fits.
Missouri recognizes several different types of child support arrangements, and the type of order that applies to your situation affects how payments work, what changes can be made, and what happens if payments are not made.
Free Guide to Restoring Your WhatsApp Backup →
The most common type is a "court order," issued by a judge after a divorce, paternity case, or custody modification. A court order sets a specific monthly amount that one parent must pay to the other. This is a legal document signed by a judge, and both parents are legally required to follow it. If either parent fails to pay or fails to receive payment as ordered, they can report the problem to the court or to the Missouri Family Support Division, the government agency that handles child support enforcement.
Another type is a "voluntary agreement" between parents, also called a "stipulated agreement." Parents can agree on a child support amount without having a judge decide. However, the agreement must still be approved by a judge or submitted to the Family Support Division to become legally enforceable. A voluntary agreement that is only written and signed by the parents, but not approved by the court, is not legally binding and gives the parent receiving support less protection if payments stop.
Some parents use "income withholding orders," which automatically take child support money from the paying parent's paycheck before they receive it. This method is the most reliable for ensuring consistent payment. The employer withholds the amount and sends it to the state, which passes it to the receiving parent. Income withholding can be ordered by the court or can be part of a voluntary agreement.
Cases handled by the Missouri Family Support Division may have "administrative orders" instead of court orders. The Division can issue orders without going to court in some situations. These orders carry the same legal weight as court orders.
Some parents have "modification orders," which change an existing child support order. A modification might increase or decrease the payment amount, or change how payment is made. Either parent can request a modification if there has been a significant change in circumstances, such as a job loss, a major increase in income, or a change in how much time the children spend with each parent.
Practical takeaway: Know what type of order you have. If it is a court order or administrative order, you have legal protection and can use enforcement tools if there are problems. If you have only a written agreement between parents that was not filed with the court, you have fewer options if the paying parent stops paying.
Missouri offers several ways for parents to make child support payments, and understanding your options helps ensure payments are made correctly and on time.
Get Your Free DoorDash Food Guide →
The most common method is "income withholding," where the money comes directly out of the paying parent's paycheck. The employer sends the payment to the Missouri Family Support Division's payment processing center, and the state forwards it to the parent receiving support. This method is automatic and reliable—the paying parent does not have to remember to send a check each month. Income withholding is required in most child support cases unless both parents agree in writing that it is not necessary.
Parents can also make payments directly to the Missouri Family Support Division through several methods: writing a check and mailing it, making an automatic bank transfer, paying online through the state's payment website, or using a payment service that accepts debit or credit cards. If paying online or through a service, small processing fees may apply. Payments sent directly to the other parent (without going through the state system) are legal, but they are harder to track and prove in court if there is a dispute about whether money was paid.
Some cases allow parents to pay each other directly without involving the state, but even then, the receiving parent should keep records. This might include bank statements showing deposits, receipts signed by the other parent, or pictures of checks. If a question arises about whether payments were made, having records protects both parents.
The money that is collected goes to the parent who has primary custody of the children. If the case is being handled by the Family Support Division, the state may take a small portion to cover administrative costs before sending the rest to the receiving parent. If there is also unpaid child support debt from previous months, the state applies new payments to clear that debt first, then sends remaining money to the current recipient.
Missouri law says child support money belongs to the children and must be used for their care and benefit. Parents receiving support are not required to account for every dollar spent, but the money should go toward basic needs like housing, food, clothing, education, and healthcare.
Federal law requires that child support payments are tracked. The state sends statements showing all payments made and received, usually monthly or quarterly. These statements are important records and should be kept in case the paying parent needs to prove payments were made, or the receiving parent needs to prove payments were missed.
Practical takeaway: If possible, use income withholding or payment through the state system—these methods create clear records that protect both parents. Keep all payment statements and receipts. If you pay directly to the other parent, get a receipt or keep bank records showing the transfer.
Child support does not last forever. Missouri law is clear about when the paying parent's obligation ends, though there are some situations where support continues longer than expected.
Free Guide to Gmail Troubleshooting Solutions →
In most cases, child support ends when the youngest child turns 18 years old. However, the child must also have graduated from high school. If a child is still in high school after turning 18, support continues until the month after graduation or until the child turns 19, whichever comes first. So if a child turns 18 in January but will not graduate until June, the paying parent continues to pay support through June.
Child support also ends if the child is emancipated. Emancipation means the child legally becomes an adult before turning 18, usually because they marry, join the military, move out and become self-supporting, or the court declares them emancipated. The paying parent can ask the court to end support early if they believe the child is emancipated, but the court must agree.
Support also ends if the child dies or, in some cases, if the receiving parent dies. If the receiving parent dies, the paying parent should immediately notify the court or the Family Support Division. However, if the child is living with someone else, support may continue to that person if they are the child's legal guardian.
In situations
This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.