Mississippi uses guideline calculations to determine child support, taking into account both parents’ gross incomes, the number of children, and certain allowable deductions. The guidelines provide a presumptive amount that the court will apply unless there is a documented reason for deviation. Other factors such as childcare costs, health insurance premiums, and extraordinary medical or educational expenses may be added to the basic guideline amount to reflect the child’s actual needs. To prepare for a calculation, gather recent pay stubs, tax returns, and records of benefits or other income. Accurate reporting of all income sources—wages, self-employment, and benefits—helps ensure the guideline amount is calculated correctly. When deviations are sought, documentation supporting the reason for a different amount is essential to persuade the court to adjust the presumptive figure.