Just the facts · South Carolina
Year one $99; each renewal $99
We'd use SC Registered Agent.org in South Carolina. One state, $99 a year, and then $99.
With a lower three-year cost than Mainstay Filing, it comes first for a company that stays put.
Your money buys
The good
Trade-offs
Year one $149; each renewal $149
Number 2 is Mainstay Filing: one account at $149 a year works in whichever state you register in.
At $150 more than SC Registered Agent.org over three years, it lands lower on our list.
Your money buys
The good
Trade-offs
Year one $99; each renewal $99
South Carolina Registered Agent.co takes third, because one state, $99 a year, and then $99.
The same published prices as SC Registered Agent.org, so go with whichever you like.
Your money buys
The good
Trade-offs
| # | Who | First year | Renews at | Over three years | In the price | |
|---|---|---|---|---|---|---|
| 1 | SC Registered Agent.org | $99 | $99/yr | $297 | your registered office address; online copies of any legal papers | Take a look at SC Registered Agent.orgPartner link. We may earn money if you buy. |
| 2 | Mainstay Filing | $149 | $149/yr | $447 | registered office on file; we scan up to three government mailings a year at no charge; Not just LLCs: corporations, LPs, LLPs and nonprofits as well | Take a look at Mainstay FilingPartner link. We may earn money if you buy. |
| 3 | South Carolina Registered Agent.co | $99 | $99/yr | $297 | your registered office address; online copies of any legal papers | Take a look at South Carolina Registered Agent.coPartner link. We may earn money if you buy. |
Every LLC must name a registered agent with an in-state street address.
Cited law: S.C. Code § 33-44-108. official: scstatehouse.gov, October 2026
A South Carolina resident, a South Carolina corporation, another LLC, or a corporation or company from another state authorized to do business in South Carolina.
An owner who meets the rule may be the agent with no charge from the state.
Our picks charge $99 to $149 a year, and three years cost $297 to $447.
Naming a different agent doesn't change any state fee.
When a lawsuit or state letter reaches your LLC in South Carolina, the agent is who receives it.
Service is only as good as the forwarding, so ask how documents reach you. A closer look at service of process
No report falls due.
It comes down to cost across three years, and SC Registered Agent.org is best at it.
Five checks set the order: cost across three years (33%), work taken off your hands (31%), prices stated clearly (14%), renewal price (12%) and where it works (10%).
On cost, SC Registered Agent.org takes it at $297, a saving of $150 against Mainstay Filing.
| What | The answer | Where we found it |
|---|---|---|
| LLC filing fee | $110 | official: scstatehouse.gov, October 2026 |
| Registered agent | Yes, it's required | official: scstatehouse.gov, October 2026 |
| State cost over three years | $110 | The rows above, added up |
Usually yes. Check the two rules above, who qualifies and the address.
The address has to be a street address in South Carolina for the agent, stated in the articles. P.O. boxes are not accepted.
Three-year totals are SC Registered Agent.org, $297; Mainstay Filing, $447; South Carolina Registered Agent.co, $297
Official South Carolina sources on the state side and company pricing on the service side, all dated.
It's your call. You can file on your own if you meet the rules on this page.
SC Registered Agent.org comes first: it's $99 a year, $99 once you renew, for an LLC that stays in South Carolina. Then come Mainstay Filing and South Carolina Registered Agent.co.