3 Best Foreign Registration Services in South Carolina (2026): The Straight Story
For foreign registration services in South Carolina in 2026, we'd rank Mainstay Filing ($199), SC Registered Agent.org ($199) and South Carolina Registered Agent.co ($199), best first. Here's the money: $110 to the state, $397 to $497 to a service across three years.
Straight from the LLC Straight Talk editorial team
The short of it
The short of it
What the state charges to register
$110
Bring a home-state certificate?
Yes (30 days old, tops)
Once you're registered
No report
Who we'd use
Mainstay Filing, SC Registered Agent.org then South Carolina Registered Agent.co
1. Mainstay Filing: best for registering in several states
Service $199 plus $110 to the state; agent renewal $149
There's one fee, $199, whatever state you're registering in, and the registered agent is waived for the first year. That's why Mainstay Filing is first.
You'd save $100 over three years with SC Registered Agent.org, as long as the LLC never leaves South Carolina.
Skip the registered agent charge in year one. Afterward expect $149 a year in every state.
What you get
Registration, start to finish
The same fee no matter the state
Pluses
All fifty states
$199 on top of South Carolina's fee
What's not
SC Registered Agent.org renews its agent $50 lower
#2South Carolina only
2. SC Registered Agent.org: best for registering in one place only
Service $199 plus $110 to the state; agent renewal $99
SC Registered Agent.org comes in second because you'll pay $199 over the state fee and get the agent free for year one, then $99 a year.
What you get
South Carolina registration filing
The first agent year's on them
Pluses
Then $99 yearly
Year one of the agent comes with it
$199 plus the state fee
What's not
Your home state needs its own agent
#3South Carolina only
3. South Carolina Registered Agent.co: best for another in-state choice
Service $199 plus $110 to the state; agent renewal $99
South Carolina Registered Agent.co comes in third because you'll pay $199 over the state fee and get the agent free for year one, then $99 a year.
Price for price, it's a tie with SC Registered Agent.org.
What you get
South Carolina registration filing
The first agent year's on them
Pluses
$199 plus the state fee
Year one of the agent comes with it
Then $99 yearly
What's not
Your home state needs its own agent
The numbers
#
Who
Year one
Then
Three-year total
Covers
1
Mainstay Filing
$199
$149/yr
$497
Registration, start to finish; the same fee no matter the state
Figure $110 to the state and $199 if you hire help.
Over three years the state's fees reach $110, counting any recurring report. go check dor.sc.gov, last confirmed October 2026
Which form, and who gets it?
The form's the Application for a Certificate of Authority by a Foreign Limited Liability Company (Form F0008), and the South Carolina Secretary of State gets it.
Attach certificate of existence from the home-state Secretary of State issued within the last 30 days.
Is there a filing that repeats?
Foreign LLCs don't file a recurring report here.
Why this order?
On jobs the price actually covers (30% of the score), Mainstay Filing wins.
We run five tests: money out the door in three years (35%), jobs the price actually covers (30%), no hunting for the price (14%), no surprise at renewal (11%) and where it works (10%).
With two states in play, a provider that covers every state beat SC Registered Agent.org.
Every line above links to the state's own page. The total's ours: the filing, two reports and any minimum tax.
Still wondering?
Do I still need an agent at home?
Each state sets its own rule, so keep an agent at home too. A provider that works in every state, like Mainstay Filing, can handle both.
What do the picks cost over three years?
Over three years you're looking at $497 at Mainstay Filing, $397 at SC Registered Agent.org, $397 at South Carolina Registered Agent.co, with state fees on top.
Are the fees official?
Each state fee links to its official page, and each service price comes from the company's own site.
Is a service required?
Not required. The state takes filings from owners.
Can I pay somebody to register the LLC?
All of them do, so the service fee's the only difference.
Who's first in South Carolina?
Mainstay Filing, because South Carolina's fee plus $199 gets you registered, and nobody bills you for the registered agent until year two. After that, SC Registered Agent.org and South Carolina Registered Agent.co.