3 Best Foreign Registration Services in South Carolina (2026) and Why
In 2026, we rank South Carolina Registered Agent.co ($199), SC Registered Agent.org ($199) and Mainstay Filing ($199), in that order, as the foreign registration services for South Carolina. The state's registration fee is $110 whoever files, and services total $397 to $497 across three years.
By the LLC Answered editorial team
Quick reply
Short reply
Price to register
$110
Home-state certificate needed?
Yes, attach it (30 days, no older)
Later filing
Nothing to file yearly
Best first
South Carolina Registered Agent.co, SC Registered Agent.org then Mainstay Filing
State fees reach $110 over three years, counting any recurring report. source dor.sc.gov (October 2026) on file
What gets submitted?
The place to send the Application for a Certificate of Authority by a Foreign Limited Liability Company (Form F0008) is the South Carolina Secretary of State.
Include with it certificate of existence from the home-state Secretary of State not older than 30 days.
What does staying registered cost?
No repeating filing follows registration.
Why this order?
South Carolina Registered Agent.co leads on three-year price, a 36% test.
The two heavy tests are three-year price (36%) and paperwork covered (29%); three lighter tests follow.
South Carolina Registered Agent.co: $397 for three years, which undercuts Mainstay Filing by $100.
The bottom line adds up the filing fee, the reports for years two and three and the minimum tax if there is one. A cost with no set price, like a newspaper notice, is left out of the sum.
Short Q&A
Do both states require an agent?
Each state applies its own rule, so your home state still needs an agent. A provider active in every state, such as Mainstay Filing, covers both.
How do the three-year totals compare?
Three-year costs are South Carolina Registered Agent.co, $397; SC Registered Agent.org, $397; Mainstay Filing, $497, not counting state fees.
How do you know these fees?
Fees set by the state come from South Carolina's own publications; what services charge comes from their published prices.
Does the law require a service?
Nothing requires it. Think of a service as paid convenience.
Do these companies file it?
Every company on this page handles the filing for you; the state charges the same regardless.
Who is your first choice in South Carolina?
South Carolina Registered Agent.co, because $199 files the registration, and the agent renews at $99 each year. Then SC Registered Agent.org and Mainstay Filing.