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Understanding Child Support in South Carolina

By Attorney John S. Keffer

November 9, 2026

Divorce. Angry black parents fighting over their child

Child support in South Carolina is a legal obligation both parents share, and the Family Court sets the amount using statewide guidelines.

Child support is a key part of many family law cases in South Carolina, especially in divorce and custody situations. Knowing how support is calculated, what factors influence the amount, and how orders can be modified or enforced helps parents make informed decisions. If you’re navigating child support issues, a Sumter family law attorney can help protect your rights and ensure the process works in your child’s best interests.

What Is Child Support in South Carolina?

In South Carolina, child support is intended to ensure that children receive financial support from both parents, even if the parents no longer live together. Support helps cover needs such as food, housing, education, and healthcare until a child reaches the age of 18 or finishes high school. 

Child support in South Carolina – Keffer Law Firm, Sumter SC

How Child Support Is Calculated

South Carolina uses the Income Shares Model to determine child support amounts. This means the court looks at both parents’ gross incomes and calculates a support obligation that reflects what it would cost to raise the child if the parents were living together. 

Key factors in the calculation include:

  • Gross income of both parents: wages, bonuses, self-employment earnings, and other income sources. 
  • Number of children: The more children involved, the higher the support obligation. 
  • Custodial arrangements: Time spent with each parent can affect the support figure. 
  • Childcare and health insurance costs: Premiums and work-related childcare expenses are considered. 
  • Extraordinary medical or educational expenses: These can increase support. 

The South Carolina Department of Social Services provides an online child support calculator that parents can use to estimate support amounts based on these factors. 

When the Court Can Deviate from the Guidelines

Although the state’s Child Support Guidelines form the basis for calculations, a family court judge may deviate from the guideline amount if certain factors justify a different figure. Such circumstances may include:

  • Extraordinary expenses beyond standard childcare or health costs. 
  • Special needs of a child. 
  • Significant differences in income or shared time arrangements. 

A deviation must still serve the child’s best interests and is not the norm in most cases. 

Child support in South Carolina guidance from Attorney John S. Keffer

Modifying Child Support Orders

South Carolina law allows parents to request a modification of a child support order when they can show a substantial and material change in circumstances. This might include a job loss, change in income, increased medical or childcare costs, or changes in custody arrangements. 

Both the Department of Social Services (DSS) and the family court have authority to review and adjust support orders when appropriate. 

Enforcement of Child Support

If a parent fails to pay child support as ordered, South Carolina law provides enforcement mechanisms, including wage garnishment, interception of tax refunds, and other collection actions through the family court or the DSS child support enforcement division. 

Child support in South Carolina help in South Carolina

When Support Ends

Child support typically continues until the child turns 18 and is no longer attending high school. In some cases involving special needs, support may continue past age 18. 

Conclusion

Understanding how child support works in South Carolina — from calculation, modification, to enforcement — is essential for parents navigating family law matters. An experienced Sumter family law attorney can help you understand your rights, estimate support amounts, and guide you through the legal process with confidence.

Child support obligations are addressed in Title 63, Chapter 17 of the South Carolina Code.

Child Support in South Carolina FAQs

How is child support in South Carolina calculated?

Child support in South Carolina is calculated using the state guidelines, which consider both parents’ incomes, the number of children, health insurance and work-related child care costs.

When does child support in South Carolina end?

Child support in South Carolina generally ends when the child turns 18 or graduates from high school, whichever is later, though some exceptions apply.

Can child support be modified?

Yes. A parent can ask the Family Court to change child support in South Carolina when there is a substantial change in circumstances, such as a major change in income.

About the Author

John S. Keffer, Attorney at Law

Attorney Keffer has practiced law in South Carolina since 1999. A U.S. Air Force veteran and University of South Carolina law graduate, he represents clients in family law, DUI, criminal defense, and injury cases.

This article is general information, not legal advice. Reading it does not create an attorney-client relationship.

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