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Formation Explained

LLC rules, unpacked for first-time owners.

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Learn the basics · South Carolina

3 Best LLC Services in South Carolina (2026), Compared

We recommend Mainstay Filing ($199), South Carolina Registered Agent.co ($199) and SC Registered Agent.org ($199) for LLC formation services in South Carolina in 2026, in that order. South Carolina charges $110 for the filing itself. Service fees across three years come to $397 to $597.
Formation Explained editorial team

The gist

Fee to file
$110, charged once
Upkeep each year
No recurring filing
Registered agent
Yes, by law
Our recommendations
Mainstay Filing, South Carolina Registered Agent.co then SC Registered Agent.org

Services we would pick in South Carolina

Order and weights are explained on how we pick.
1 Number one

1. Mainstay Filing: best for one invoice a year

$199 per year ($309 at signup including the state fee)

Mainstay Filing is where we would start in South Carolina. In short, its price stays at $199 a year at renewal and covers the formation and the registered agent.

Three years cost $200 more than South Carolina Registered Agent.co, and the extra pays for a provider that works in every state.

Includes

  • Articles prepared and submitted
  • Registered agent for the whole year
  • Help applying for an EIN
  • State fees without a markup

Points in its favor

  • Takes care of the EIN application
  • The price holds at $199
  • One yearly price: $199

Where it falls short

  • Renews $100 higher than South Carolina Registered Agent.co
  • No report filing to add to the price
2 South Carolina focus

2. South Carolina Registered Agent.co: best for a modest first-year bill

Formation $199, agent renewal $99, state fee extra

South Carolina Registered Agent.co takes the second slot: year one costs $199 and each later year $99.

Includes

  • Formation filing handled
  • No agent charge in year one

Points in its favor

  • $199 plus the state fee
  • Includes a first year of agent service
  • $99 annually after that

Where it falls short

  • The EIN add-on is $99
3 South Carolina focus

3. SC Registered Agent.org: best for one-state companies

Formation $199, agent renewal $99, state fee extra

SC Registered Agent.org takes the third slot: year one costs $199 and each later year $99.

Its published prices are identical to South Carolina Registered Agent.co, so choosing between them is a close call.

Includes

  • Formation filing handled
  • No agent charge in year one

Points in its favor

  • $99 annually after that
  • Includes a first year of agent service
  • $199 plus the state fee

Where it falls short

  • The EIN add-on is $99

Numbers side by side

#CompanyYear oneRenewal priceThree-year totalIncluded in the price
1 Mainstay Filing $199$199/yr$597articles prepared and submitted; registered agent for the whole year; Help applying for an EIN Learn more at Mainstay FilingPartner link. We may earn money if you buy.
2 South Carolina Registered Agent.co $199$99/yr$397formation filing handled; no agent charge in year one Learn more at South Carolina Registered Agent.coPartner link. We may earn money if you buy.
3 SC Registered Agent.org $199$99/yr$397formation filing handled; no agent charge in year one Learn more at SC Registered Agent.orgPartner link. We may earn money if you buy.
Service fees only, from each company's pricing as of November 13, 2026. State fees do not change with the service you choose.

Explanations

What is the full cost to form one?

$110 goes to the state, and $199 more if you hire a service in year one.

State fees for years one through three: $110. see scstatehouse.gov, October 2026

Which form do I file, and with whom?

The LLC comes into being when the South Carolina Secretary of State approves the Articles of Organization.

Legal basis: S.C. Code § 33-44-202. see scstatehouse.gov, October 2026

Does the state insist on a registered agent?

Every LLC must name a registered agent with an in-state street address.

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.

see scstatehouse.gov, October 2026

What is due in later years?

Report fees: none.

Is it possible to file it myself?

Yes, and the cost is then the state's $110 over three years.

Services charge $397 to $597 over three years for that work.

Why is the first pick first?

How much work the price handles counts for 28%, and Mainstay Filing comes out ahead on it.

The two heaviest criteria are what three years cost (34%) and how much work the price handles (28%), with three lighter ones behind them.

South Carolina has no recurring report to bundle in, so its lead over South Carolina Registered Agent.co is small.

How the ranking works

Checklist for South Carolina, with sources

What it coversFee or ruleOfficial source
Fee to file the LLC$110see scstatehouse.gov, October 2026
Registered agentYes, by lawsee scstatehouse.gov, October 2026
State fees across three years$110Our total of the rows above
Each amount above links to its official source. The three-year line is our own total of the filing, reports and any minimum tax.

More explanations

Does the price include the EIN application?

It is part of the Mainstay Filing price, while South Carolina Registered Agent.co bills $99 and SC Registered Agent.org bills $99.

What is the three-year price of each?

Over three years: Mainstay Filing ($597), South Carolina Registered Agent.co ($397), SC Registered Agent.org ($397) (service fees only).

Where do the numbers come from?

State fees come from South Carolina's official sources, cited by each figure. Service prices come from each company's own pricing page.

Does the law require a service?

No law demands one. A service is a convenience.

What comes due every year?

Report fees: none.

What is the best LLC service for South Carolina?

We would start with Mainstay Filing, then South Carolina Registered Agent.co and SC Registered Agent.org.

Official sources and price pages

  1. S.C via scstatehouse.gov, as of August 2026
  2. South Carolina service page from Mainstay Filing, prices as of November 13, 2026
  3. pricing page from South Carolina Registered Agent.co, prices as of November 13, 2026
  4. pricing page from SC Registered Agent.org, prices as of November 13, 2026