What South Carolina Child Support Amounts Look Like for One Child

South Carolina uses a formula, not a fixed dollar amount

South Carolina does not have a single child support number that applies to everyone with one child. Instead, the state uses a child support guidelines formula that calculates a monthly amount based on both parents' gross monthly income. The formula produces different results depending on how much each parent earns, how much time each parent spends with the child, and other factors the court considers.

The formula starts with a base amount tied to combined parental income, then adjusts for custody arrangements and specific expenses like health insurance and childcare. A parent earning $2,000 per month will owe a different amount than a parent earning $5,000 per month, even though both have one child.

South Carolina courts use these guidelines in most cases, though a judge can order a different amount if the guidelines would be unjust or inappropriate given the family's circumstances.

Key Takeaways

• South Carolina calculates child support using a formula based on both parents' gross monthly income, not a flat rate per child.
• The formula adjusts based on custody time, health insurance costs, childcare expenses, and other factors specific to each family.
• A parent's obligation ranges widely depending on income level, and the state publishes income tables to show approximate amounts at different earning levels.
• Child support orders can be modified if either parent's income changes significantly or custody arrangements change.
• The South Carolina Department of Social Services can help establish or enforce a child support order at no cost to the person receiving support.

How the South Carolina formula works

The state's guidelines use a combined parental income model. This means the court adds together both parents' gross monthly income (before taxes), then looks up a base child support amount on the state's income table. For one child, that base amount increases as combined income rises.

Once the court finds the base amount, it divides that obligation between the two parents based on their individual income percentages. If one parent earns 70 percent of the combined income, that parent typically pays 70 percent of the base obligation. The other parent pays 30 percent, though this may be paid as a credit if that parent has primary custody.

The formula also accounts for parenting time. If both parents share custody roughly equally, the obligation adjusts downward because the non-custodial parent is already spending money on the child during their time. If one parent has the child most of the time, the other parent's obligation is higher.

Income levels and approximate monthly amounts

South Carolina publishes child support guidelines tables that show base amounts at different income levels. These tables give a rough picture of what child support might look like, though your actual order depends on your specific situation.

For example, at a combined parental income of $1,500 per month, the base child support for one child is approximately $300 per month. At $3,000 combined income, the base is roughly $600 per month. At $5,000 combined income, it rises to around $1,000 per month. These are base amounts before adjustments for custody, insurance, or childcare.

Income above a certain threshold (currently around $15,000 per month combined) is handled differently—the court has discretion in how the process works the guidelines to very high-income families. The exact threshold and amounts change periodically, so checking the current South Carolina Department of Social Services guidelines table gives you the most accurate picture.

Adjustments that change the final amount

The base formula amount is a starting point, not the final order. Several adjustments commonly explore. If the paying parent pays for the child's health insurance, that cost is subtracted from their obligation. If one parent pays for childcare so the other can work, that expense is typically split between them or reduces the paying parent's obligation.

Custody time is a major adjustment. If the non-custodial parent has the child 40 percent or more of the time, the formula adjusts downward because that parent is already covering expenses during their parenting time. Joint custody arrangements produce different calculations than sole custody.

The court can also consider other factors: whether either parent has other children from different relationships, significant debts, or unusual expenses. A parent with substantial medical bills or a second family to support may receive an adjustment, though this is not automatic.

When child support orders change

A child support order is not permanent. Either parent can request a modification if circumstances change significantly. A job loss, a substantial raise, a change in custody, or the birth of another child are common reasons to modify an order.

South Carolina allows a modification request if there has been a material change in circumstances—typically defined as a change of 10 percent or more in either parent's income, or a significant change in custody time. The parent requesting the change must file a motion with the court or contact the South Carolina Department of Social Services if the order was established through that agency.

Modifications take effect from the date the motion is filed, not retroactively to when the change happened. If your income drops and you do not request a modification, you remain obligated to pay the original amount until a court changes it.

How to find your state's current guidelines

The South Carolina Department of Social Services maintains the official child support guidelines table, which is updated periodically. You can request a copy from the department's child support office, or many family law attorneys have current copies available.

If you are trying to estimate what child support might be, you need both parents' gross monthly income (including wages, self-employment income, bonuses, and certain benefits), the custody arrangement, and any childcare or health insurance costs. Plugging these into the state's formula or working with a family law attorney gives you a realistic picture.

The South Carolina Department of Social Services also offers free services to establish or modify child support orders. You do not need an attorney to work with the agency, though having one can help if the other parent contests the order.

Frequently Asked Questions

Does South Carolina have a minimum child support amount?

South Carolina does not set a flat minimum, but the guidelines formula produces an amount based on income. For very low-income parents, the amount may be small, but the court can order a minimum amount if it determines the parent has the ability to pay. Some judges set a floor of $50 to $100 per month even for low-income obligors.

What counts as income for child support purposes?

Gross income includes wages, salary, bonuses, self-employment income, rental income, and certain government benefits. It does not include child support or spousal support received from another relationship, or means-tested benefits like food stamps. The court looks at gross income before taxes and deductions.

Can I get child support modified if my income went down?

Yes, if your income dropped significantly—typically 10 percent or more—you can request a modification. You must file a motion with the court or contact the South Carolina Department of Social Services. The new order takes effect from the date you file, not from when your income actually dropped.

What if the other parent refuses to pay child support?

The South Carolina Department of Social Services can enforce the order through wage garnishment, tax refund interception, or other collection methods. You can also ask the court to hold the other parent in contempt. The agency handles enforcement at no cost if the order was established through them.

Does child support end when the child turns 18?

In South Carolina, child support typically ends when the child turns 18 or graduates from high school, whichever is later. If the child is still in high school after turning 18, support continues until graduation. Support also ends if the child marries, joins the military, or becomes self-supporting before age 18.