3 Best Registered Agents in South Carolina (2026) and the Facts Behind Them
South Carolina 2026 ranking of registered agents: Mainstay Filing ($149 a year), SC Registered Agent.org ($99 a year) and South Carolina Registered Agent.co ($99 a year). Agent prices start at $99 to $149 in year one and total $297 to $447 over three.
LLC Q and A editorial team ·
Quick answers
Agent required?
Yes, the statute demands one
Title in law
Registered agent
Agent price
$99 to $149 per year
Pick
Mainstay Filing, SC Registered Agent.org then South Carolina Registered Agent.co
Best in South Carolina, in order
Prices come from each company's own page. See the method.
1#1 pick
1. Mainstay Filing: best for one price in all states
$149/yr, renews at $149
Mainstay Filing ranks first since price: $149 a year in all states, $149 at renewal.
SC Registered Agent.org saves $150 over three years if the LLC never leaves South Carolina.
Price covers
Street address in the state
Free scans: three government mailings per year
Also serves corporations, LPs, LLPs and nonprofits
Prices as of November 13, 2026. State fees are in the checklist below.
Questions and replies
Must the LLC name a registered agent?
Every LLC must name a registered agent with an in-state street address.
Statute: S.C. Code § 33-44-108. scstatehouse.gov (October 2026) is the source of record
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.
An eligible owner may be the agent for free.
Agent price per year?
$99 to $149/yr, or $297 to $447 for three years.
State fees do not change with your choice of agent.
What does an agent do?
Receives legal papers and state notices for the company in South Carolina.
Three-year total = filing + report in year 2 + report in year 3 + minimum tax (if any). Fees without a fixed amount, like newspaper notices, are not summed.
Also asked
Can I be my own agent?
Usually yes: check who qualifies and which address counts.
What address counts?
The address has to be a street address in South Carolina for the agent, stated in the articles. P.O. boxes are not accepted.
What do the picks cost over three years?
Mainstay Filing will run $447, SC Registered Agent.org will run $297, South Carolina Registered Agent.co will run $297
Are the fees official?
Official South Carolina sources for the state side, published prices for the service side.
Is a service required?
No law requires a service; it is a paid convenience.
Which registered agent should I use in South Carolina?
Mainstay Filing: one $149-a-year account works in whichever state the LLC registers. Behind it: SC Registered Agent.org and South Carolina Registered Agent.co.
Sources
Reference line for S.C, drawn from scstatehouse.gov and confirmed August 2026, as noted by our editors
Price page: Mainstay Filing South Carolina service page, accessed November 13, 2026