South Carolina Child Support Calculator
Estimate child support under S.C. Code Ann. § 63-17-470 and S.C. Regs. 114-4710 et seq.. Calculate baseline support, parenting time overnights, health insurance credits, and work-related childcare costs.
1. Enter Case Information
SC RulesEstimated Child Support
SC EstimateUnderstanding South Carolina Child Support Guidelines
South Carolina uses an Income Shares model governed by S.C. Regs. 114-4710. Combined gross income determines basic obligation, with allocations for health insurance and work-related daycare.
Shared Custody & Overnights in South Carolina
Under Worksheet B, shared physical custody applies when each parent has the child for at least 110 overnights per year (30%), applying a 1.5 multiplier and cross-credit allocation.
Calculate Your Exact Overnights →Official Court Worksheets & Forms
Family court filings in South Carolina require completing: Form DSS 1827 (Worksheet A - Sole Custody), Worksheet B (Shared Custody), Worksheet C (Split Custody). Review official forms before filing.
View State Worksheets Directory →Worked Calculation Example: Standard South Carolina Scenario
Here is a realistic line-by-line computation for two parents in South Carolina raising 2 children:
| Guideline Worksheet Line Item | Parent A (Paying) | Parent B (Receiving) | Combined / Order Total |
|---|---|---|---|
| Monthly Guideline Income | $4600 | $3100 | $7700 |
| Parental Income Proportion | 60% | 40% | 100% |
| Basic Child Support Schedule Obligation | - | - | $1280 /mo |
| Work-Related Childcare Cost | - | - | +$360 /mo |
| Health & Dental Insurance Premium | - | - | +$200 /mo |
| Total Combined Child Financial Needs | - | - | $1840 /mo |
| Final Estimated Monthly Support Order | Paid by Parent A to Parent B | $1040 /month | |
Frequently Asked Questions in South Carolina
Key legal questions regarding child support establishment, modifications, and enforcement in South Carolina.
What is the shared custody threshold in South Carolina?
Under S.C. Regulations, shared custody is defined as each parent having the child for more than 109 overnights per year (at least 110 nights), requiring Worksheet B.
Does South Carolina allow deductions for other biological children?
Yes. South Carolina allows a credit for natural or adopted children living in the parent's household who are not covered by the current proceeding.
How does South Carolina treat alimony payments between the parents?
Alimony paid between the parties in the same proceeding is subtracted from the payer's gross income and added to the payee's gross income.
Next Useful Steps for Your Case
Take the next step in preparing your family financial documentation:
Convert Irregular Income
Standardize hourly wages, seasonal overtime, or commissions into monthly gross figures.
Launch Income Tool →Explore 50/50 Custody
See how equal time sharing and reciprocal guidelines impact final transfer payments.
50/50 Custody Tool →Download Official Worksheets
Find the exact PDF court forms and financial affidavits required by your court clerk.
Court Worksheets Directory →