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Researched and written by the Launchwise Review editorial team
Launchwise Review

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

Launch guide · South Carolina · foreign registration

3 Best Foreign Registration Services in South Carolina (2026)

Researched and written by the Launchwise Review editorial team
For a 2026 launch in South Carolina, Launchwise Review grades foreign registration services this way: SC Registered Agent.org ($199), South Carolina Registered Agent.co ($199) and Mainstay Filing ($199). SC Registered Agent.org earns the top grade here: it registers the company in South Carolina for $199, first agent year included, then $99 a year.
1
Best here

1. SC Registered Agent.org: best for companies adding only South Carolina

Pay $199 plus the state fee, then $99 a year for the agent

Our mark 9.5 out of 10

Top grade, SC Registered Agent.org: $199 beyond the state fee gets the company into South Carolina, with the agent renewing at $99.

You get an in-state street address for the registered office, and any papers served on the company are scanned into your online account.

Three years of its fees come to less than Mainstay Filing charges.

In the price

  • The registration filing
  • One year of registered agent service to begin with

Pros

  • Registers the company for $199, state fee extra
  • Your first registered agent year comes at no cost
  • Then $99 a year to keep the agent

Less good

  • South Carolina only; the home state needs its own agent
  • EIN application costs extra ($99)
Visit SC Registered Agent.orgPartner link. We may earn money if you buy.
Read the SC Registered Agent.org launch review
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Best value here

2. South Carolina Registered Agent.co: best for South Carolina registrations only

Pay $199 plus the state fee, then $99 a year for the agent

Our mark 9.2 out of 10

Next up is South Carolina Registered Agent.co: $199 beyond the state fee gets the company into South Carolina, with the agent renewing at $99.

You get an in-state street address for the registered office, and any papers served on the company are scanned into your online account.

Their posted prices and features match, so SC Registered Agent.org and South Carolina Registered Agent.co grade as a near tie.

In the price

  • The registration filing
  • One year of registered agent service to begin with

Pros

  • Second-year agent price: $99
  • $199 covers the registration work, fees extra
  • Covers the first year of registered agent service

Less good

  • South Carolina only; the home state needs its own agent
  • EIN application costs extra ($99)
Visit South Carolina Registered Agent.coPartner link. We may earn money if you buy.
Read the South Carolina Registered Agent.co launch review
3
Best for expanding companies

3. Mainstay Filing: best for founders working in several states

$199 for the service, $309 due at checkout including the state fee; agent service is $149 a year from the second year

Our mark 8.9 out of 10

Rounding out the list is Mainstay Filing: the South Carolina registration costs $199, the first registered agent year is free, and later years are $149.

Once the free first year ends, the agent is $149 a year, in any state.

SC Registered Agent.org is $100 lower across three years, which puts Mainstay Filing behind it on cost.

In the price

  • The registration filing, done for you
  • Free scan of served papers the same business day they arrive

Pros

  • $199 for the service, with the state fee added
  • One price in every state
  • Papers served on the company are scanned the same business day, free

Less good

  • The agent costs $149 a year after year one, $50 above SC Registered Agent.org
Visit Mainstay FilingPartner link. We may earn money if you buy.
Read the Mainstay Filing launch review

The 3 grades at a glance

Place Company Launch grade Service price Second year Best fit Go
1 SC Registered Agent.org 9.5 $199 $99/yr The lowest agent renewal on this page Visit SC Registered Agent.orgPartner link. We may earn money if you buy.
2 South Carolina Registered Agent.co 9.2 $199 $99/yr The lowest agent renewal on this page Visit South Carolina Registered Agent.coPartner link. We may earn money if you buy.
3 Mainstay Filing 8.9 $199 $149/yr Founders opening a second state Visit Mainstay FilingPartner link. We may earn money if you buy.
Each grade out of 10 reflects our editors' reading of the weighted criteria on How we rank, not a customer rating.

South Carolina foreign registration service cost in 2026: first year, renewals, three-year total

Company Year 1 Year 2 Year 3 Three years, total Agent covered, year one
SC Registered Agent.org $199 $99 $99 $397 Included
South Carolina Registered Agent.co $199 $99 $99 $397 Included
Mainstay Filing $199 $149 $149 $497 Not stated
Prices were copied from each company's own pages on November 12, 2026. Add South Carolina's $110 registration fee to any row; it is not in the totals.

Why SC Registered Agent.org grades first

Launchwise Review puts 26% on cost to launch and stay and 26% on launch paperwork handled, then spreads 48% over renewal behavior, state match and price transparency. For South Carolina, the call came down to cost to launch and stay.

SC Registered Agent.org comes to $397 over three years, $100 under Mainstay Filing. Both include year one, so the renewal price broke the tie.

Every criterion and weight is listed on How we rank.

Opening in South Carolina as a foreign LLC: fee, form and office

Your registration goes to the South Carolina Secretary of State, on the Application for a Certificate of Authority by a Foreign Limited Liability Company (Form F0008). Budget $110 for the state. Have certificate of existence from the home-state Secretary of State in hand too, dated within 30 days of filing; South Carolina asks for it.

There is no yearly report for foreign LLCs in South Carolina.

Before you file, get these together

  • Certificate of existence from the home-state Secretary of State, issued within 30 days of your filing date.
  • Your company's exact legal name and the date it was formed at home.
  • A registered agent with a street address in the state; every company graded on this page can serve.
  • The $110 state fee, ready to pay with the filing.

What skipping South Carolina registration can cost you

Without registration, an outside LLC cannot bring a lawsuit in South Carolina courts (S.C. Code 33-44-1008(a)). Contracts it signs remain valid (S.C. Code 33-44-1008(b)).

Quick answers about South Carolina foreign registration services

When does an LLC from elsewhere have to register in South Carolina?

Once it does business there. Until then it cannot bring a lawsuit in the state's courts.

What should I budget to bring an existing LLC into South Carolina?

The state fee is $110; add a service fee of $199.

Which form brings a foreign LLC into South Carolina?

Ask the South Carolina Secretary of State for the Application for a Certificate of Authority by a Foreign Limited Liability Company (Form F0008).

Do I need a document from my home state first?

Yes, order certificate of existence from the home-state Secretary of State and file within 30 days of its date.

Does the foreign LLC still need a registered agent?

Yes. Keep a registered agent with a street address in the state for as long as the company is registered there.

Which service is the best way to register a foreign LLC in South Carolina?

SC Registered Agent.org, because $199 plus the state fee, year-one registered agent service included, then $99 a year for the agent.

More from us

Sources and dates

  1. S.C. Code § 33-44-202 and § 33-44-203, dated August 2026
  2. South Carolina Business Entities Online, dated October 2026
  3. SC Secretary of State, business entity FAQs, dated October 2026
  4. SC Department of Revenue, corporate FAQs, dated October 2026
  5. S.C. Code Title 33, Chapter 44, Uniform Limited Liability Company Act, dated November 2026
  6. From SC Registered Agent.org: pricing and service pages, copied November 12, 2026
  7. From South Carolina Registered Agent.co: pricing and service pages, copied November 12, 2026
  8. From Mainstay Filing: South Carolina service page, copied November 12, 2026