The short answer: South Carolina requires workers compensation insurance from every employer that regularly employs four or more workers, full-time or part-time, with narrow exemptions for businesses under 3,000 dollars in prior-year payroll, agricultural labor, and railroads. The coverage pays injured workers’ medical bills and about two-thirds of lost wages, and in exchange employees generally cannot sue you over the injury.
Here is the whole picture: who is in, what it pays, what it costs, and what happens to businesses that gamble.
Who is required to carry workers comp in South Carolina?
Count the people who regularly work in your business. At four or more, the Workers’ Compensation Act applies, whatever your entity type: corporation, LLC, partnership, or sole proprietorship. Part-timers count. Family members on the payroll count. Corporate officers count as employees by default, though they can elect out of coverage for themselves; how owners are treated across entity types is its own topic, covered in Do LLCs Need Workers Comp in South Carolina.
The exemptions are narrower than people hope:
- Businesses whose total payroll in the previous calendar year was under 3,000 dollars
- Agricultural employees
- Railroads and railway express companies
- Casual employees whose work is not part of your usual trade or business
Notice what is not on that list: restaurants, retail, contractors, landscapers, home care agencies, daycares. If you are reading this from behind a counter in Sumter with four names on the schedule, the law almost certainly means you.
What does workers comp actually pay for?
When an employee is hurt on the job, the policy handles:
- Medical care related to the injury, with no deductible or copay for the worker
- Lost wages, generally two-thirds of the worker’s average weekly wage while they cannot work, up to the state maximum
- Permanent disability benefits when an injury leaves lasting impairment
- Death benefits for dependents after a fatal accident
The trade running underneath all of it: workers comp is the exclusive remedy, meaning a covered employee generally cannot also sue you over the accident. The policy is not just protecting them; it is the wall between a bad day and your business’s bank account.
How are premiums calculated?
Three inputs decide your price:
- Class codes. Every job type carries a rate per 100 dollars of payroll. Clerical work rates in the pennies-to-quarters range; roofing and tree work rate in double digits.
- Payroll. Rate times payroll sets the base premium, which is why accurate payroll estimates and a year-end audit are part of every policy.
- Experience modifier. Once your business is large enough, your claims history scales the premium up or down. Clean years literally pay for themselves.
Practical cost control looks boring: classify employees correctly, run a real safety routine, get injured workers back on modified duty quickly, and shop the policy through an independent agency. With 40 plus carriers, Griffin Insurance regularly finds meaningful spreads between quotes on the same risk.
What happens if I skip required coverage?
Three bad things, stacked:
- Daily fines from the Workers’ Compensation Commission for operating uninsured
- Full personal exposure: an injured worker’s medical bills and wage benefits become your bills, uncapped by any policy
- Criminal exposure for willfully refusing to insure
A single surgery-and-rehab claim can run into six figures. No four-person business saves enough premium to cover that math.
Frequently asked questions
Do part-timers and family members count toward four employees? Yes and yes. Hours and last names do not change the count.
What does coverage cost in South Carolina? A class-code rate per 100 dollars of payroll, adjusted by claims history. Office-heavy businesses pay little; high-risk trades pay real money.
What are the penalties for going without? Daily fines, unlimited personal liability for injuries, and possible prosecution.
Are out-of-state employees covered? Only if the policy lists those states. Tell your agent everywhere your people work.
Want to know exactly where your business lands? Call or text 803-848-0089 and a local agent at our Broad Street office in Sumter will sort your headcount, class codes, and options in one conversation.