Place1
Top pick on this pageMainstay Filing
1. Mainstay Filing: best for growing companies
$149/yr (renewal $149/yr)
Our mark9.3out of 10
Mainstay Filing takes the top spot: $149 a year with the same price at renewal, and service of process scanned the same business day at no fee.
You pay $150 more over three years than with South Carolina Registered Agent.co, for more in the price.
What you get
- A physical in-state address on the public record
- Service of process scanned the same business day, no fee
- First three government mailings a year scanned free
- Compliance reminders
Why pick it
- Works for LLCs, corporations, LPs, LLPs and nonprofits
- $149/yr, renews at $149
- Service of process scanned the same business day, no fee
- First three government mailings a year scanned free
Less good
- $50 a year more than South Carolina Registered Agent.co for the agent alone
- No report filing on the agent-only plan
Place2
Best value hereSouth Carolina Registered Agent.co
2. South Carolina Registered Agent.co: best for a low flat yearly price
$99/yr (renewal $99/yr)
Our mark9.1out of 10
South Carolina Registered Agent.co ranks second: a $99 yearly plan built for South Carolina companies, renewing at $99.
Served documents are scanned and shared online, and the registered office is a South Carolina street address.
What you get
- South Carolina street address for your registered office
- Online copies of legal papers served on the company
Why pick it
- Lower yearly price than Mainstay Filing
- Also files LLC formations
- $99 yearly, same to renew
Place3
South Carolina-focusedSC Registered Agent.org
3. SC Registered Agent.org: best for a South Carolina specialist
$99/yr (renewal $99/yr)
Our mark8.8out of 10
Number 3 is SC Registered Agent.org: a $99 yearly plan built for South Carolina companies, renewing at $99.
Served documents are scanned and shared online, and the registered office is a South Carolina street address.
Prices and features match South Carolina Registered Agent.co exactly, so the two are close to interchangeable.
What you get
- South Carolina street address for your registered office
- Online copies of legal papers served on the company
Why pick it
- Lower yearly price than Mainstay Filing
- $99 yearly, same to renew
- Also files LLC formations
The 3 picks side by side
| Rank | Service | Our score | Annual price | Renewal price | Best for | Link |
|---|
| 1 | Mainstay Filing | 9.3 | $149 | $149/yr | Agent plus fifty-state coverage | Visit Mainstay FilingPartner link. We may earn money if you buy. |
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| 2 | South Carolina Registered Agent.co | 9.1 | $99 | $99/yr | Lowest yearly price on this list | Visit South Carolina Registered Agent.coPartner link. We may earn money if you buy. |
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| 3 | SC Registered Agent.org | 8.8 | $99 | $99/yr | Lowest yearly price on this list | Visit SC Registered Agent.orgPartner link. We may earn money if you buy. |
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Each score is our editorial judgment out of 10 (see How we rank), not an average of customer ratings.
Annual and renewal prices in South Carolina, 2026
| Service | Year one | Year two | Year three | Three-year total | Same price at renewal |
|---|
| Mainstay Filing | $149 | $149 | $149 | $447 | Yes |
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| South Carolina Registered Agent.co | $99 | $99 | $99 | $297 | Yes |
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| SC Registered Agent.org | $99 | $99 | $99 | $297 | Yes |
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Published prices, read November 12, 2026 on each company's site. South Carolina's own filing fees are the same whichever agent you name.
Why Mainstay Filing is first
What one price covers decided this page. It is one of our two 30% criteria, alongside three-year cost.
Mainstay Filing's plan covers more per dollar on our coverage criterion: same-day scanning of legal papers at no fee, three free mailing scans a year and one price in all fifty states. South Carolina Registered Agent.co wins on cost, and its score sits close behind.
More on the criteria: How we rank.
South Carolina registered agent requirements (official, South Carolina Secretary of State)
Every LLC must name a registered agent with an in-state street 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. Source: S.C. Code § 33-44-108.
Does South Carolina require a yearly report?
No yearly report is due in South Carolina. The registered agent requirement continues all year.
Registered agents in South Carolina: questions
Does a South Carolina LLC need a registered agent?
Yes. Every LLC must name a registered agent with an in-state street address.
How much does a registered agent cost in South Carolina?
The services we rank charge $99 to $149 a year, and each keeps the same price at renewal.
Can I be my own registered agent?
Possibly; the state sets who qualifies. 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.
Which registered agents do you rank here?
Mainstay Filing ($149 a year), South Carolina Registered Agent.co ($99 a year) and SC Registered Agent.org ($99 a year), in this order.
What does the registered agent do?
The registered agent receives lawsuits, subpoenas and official notices for the company at its street address and passes them on; every plan on this page scans them and sends them to you online.
Which South Carolina registered agent is the best value?
Mainstay Filing tops our list: a flat $149 plan that also works in the other forty-nine states, so a South Carolina company that expands keeps one agent.
Official sources and price pages
- S.C. Code § 33-44-202 and § 33-44-203 (checked August 2026): www.scstatehouse.gov/code/t33c044.php
- Mainstay Filing, South Carolina service page (read November 12, 2026)
- South Carolina Registered Agent.co, pricing and service pages (read November 12, 2026)
- SC Registered Agent.org, pricing and service pages (read November 12, 2026)