As of 2026, getting an EIN in South Carolina is free, and the IRS issues the federal number the same day you apply online. The state plays no part in it, because South Carolina doesn’t issue EINs. The state layer comes after: form your South Carolina LLC, then register with SCDOR through MyDORWAY for sales and withholding, and with SC DEW once you hire.
South Carolina EIN: the Short Version
A South Carolina EIN is the free federal tax ID the IRS issues to your LLC online, usually the same day you apply, while South Carolina itself issues separate state account numbers only after you register for them through SCDOR’s MyDORWAY and SC DEW’s SUITS.
Anyone with a multi-member LLC, employees, or a business bank account needs one. A single-member LLC with no staff isn’t federally required to have one, but should still apply.
- Cost: $0 directly from the IRS; paid sites charge $150 to $300 for the same free service.
- Where: the IRS EIN Assistant online, issued the same day.
- State taxes: SCDOR through MyDORWAY for the Retail License and withholding.
- Hiring: an SC DEW employer account through SUITS.
- IRS help line: the Business and Specialty Tax Line, 800-829-4933, Monday to Friday, 7am to 7pm local.
Does Your South Carolina LLC Need an EIN?
Whether a South Carolina LLC needs an Employer Identification Number (EIN) comes down to how it’s taxed and whether it has employees. The federal rule is identical in every state, but for most owners the answer lands on yes.
| Business type | EIN required? | Notes |
|---|---|---|
| Single-member LLC, no employees | No, but recommended | Disregarded entity; needed for a business bank account and payroll readiness |
| Single-member LLC with employees | Yes | Payroll and federal employment taxes require one |
| Multi-member LLC | Yes | Defaults to partnership treatment; files SC1065 |
| LLC taxed as S-corp or C-corp | Yes | Required for the election and SC1120 or SC1120S |
| Sole proprietor | Sometimes | Only with employees or certain excise taxes |
| Partnership | Yes | Required for federal and South Carolina partnership returns |
A single-member LLC with no staff counts as a disregarded entity for federal tax, so the IRS won’t strictly require an EIN. Banks still ask for one to open a business bank account, and you’ll need it the day you hire anyway.
SCDOR mirrors the federal classification: a single-member LLC that hasn’t elected corporate tax is taxed as its owner, while a multi-member LLC files as a partnership.
Owners still handling formation can check South Carolina LLC filing costs and line up a registered agent before they apply.
How to Apply for an EIN for Your South Carolina LLC Online
Most South Carolina owners wrap up the online application in a single sitting, as long as the LLC is already approved. In Aaron Kra’s experience filing across 25-plus states, the entity-classification screen is where applicants stall and refile.
- Confirm the LLC is approved: look up your approved LLC name on the South Carolina Secretary of State record first, since the EIN has to match it.
- Open the IRS EIN Assistant: the online tool runs Monday to Friday, 6am to 1am ET, with shorter weekend hours.
- Select the entity type: pick “Limited Liability Company,” then enter the member count; this is the screen people misread.
- Enter the legal name and any DBA: use the exact legal name on file, adding a trade name only if the LLC really uses one.
- Name the responsible party: a real person with a Social Security Number (SSN) or ITIN, never a nominee or formation-company employee.
- Choose a reason and submit: “started a new business” fits most LLCs.
- Download the CP 575 right away: save the EIN confirmation letter the moment it appears, because the IRS won’t resend it.
South Carolina EIN Approval: Save the CP 575 Before You Register With SCDOR or SC DEW
When the IRS approves your online EIN application, the confirmation appears on screen right away. That confirmation is the CP 575 EIN confirmation letter, and it is the record you want saved before you move into South Carolina tax registrations.
The CP 575 shows the federal EIN for your LLC. It is not the same thing as your SCDOR Retail License Number, SCDOR Withholding Number, or SC DEW Employer Account Number.
Sample IRS CP 575 EIN confirmation letter for a South Carolina LLC.
The EIN is free. Third-party sites that charge $150 to $300 are selling help with a form you can submit yourself at no cost.
Owners who can’t use the online tool can fax Form SS-4, which runs about 4 business days, or mail it, closer to 4 weeks.
The phone line at 267-941-1099 is for international applicants only, Monday to Friday, 6am to 11pm ET.
The IRS also caps issuance at one EIN per responsible party per day, so owners forming several LLCs at once can’t batch them in one go.
Keep the South Carolina LLC record clean before the EIN goes into tax accounts.
The EIN is free from the IRS, but the filing still needs to match your South Carolina Secretary of State record. Northwest Registered Agent can help with LLC formation, registered agent service, and optional EIN services so the legal name, responsible party, and CP 575 letter stay aligned before banking, MyDORWAY, payroll, or SUITS setup.
What South Carolina LLC Owners Need to Apply for an EIN
The right details on hand keep the application to one session, since the IRS tool logs you out after 15 minutes of inactivity. It’s worth pulling these together before you open it.
- Approved legal name: exactly as filed with the South Carolina Secretary of State Business Entities Online.
- Formation date: the date the Articles of Organization were approved.
- Responsible party and TIN: the controlling person’s name with an SSN or ITIN.
- Entity type and member count: single-member or multi-member.
- Reason for applying: usually starting a new business.
- Business address: the LLC’s principal South Carolina address.
Form the LLC first, then apply, so the name on the CP 575 matches the state record. That’s the mismatch you don’t want to untangle with the IRS later.
It helps to know how long South Carolina LLC approval takes and to have an operating agreement ready before payroll questions come up.
Owners weighing whether to file solo or hire help can compare South Carolina LLC services first.
EIN vs Your South Carolina Tax ID Numbers
This is where most of the confusion lives. The EIN is federal; South Carolina assigns its own account numbers after you register, and they aren’t interchangeable.
| Number | Issued by | Used for | Same as EIN? |
|---|---|---|---|
| Federal EIN (FEIN) | IRS | Federal tax, payroll, bank accounts, W-9s, state registration | This is the EIN |
| Retail License Number | SCDOR | Sales and use tax on retail sales | No |
| Withholding Number | SCDOR | South Carolina employer income tax withholding | No |
| Employer Account Number (EAN) | SC DEW | Unemployment insurance wage reporting | No |
| Secretary of State entity ID | SC Secretary of State | LLC formation record | No |
A retail South Carolina LLC with employees can hold all four at once, and they’re easy to mix up: one federal EIN plus three separate state numbers from two agencies.
I get this question from nearly every South Carolina client, and I do not blame them. One retailer I helped last year was sitting on four numbers with no idea which was which.
Registering for South Carolina Taxes With SCDOR and SC DEW
Once the EIN’s in hand, it unlocks the state registrations. South Carolina splits these across two portals: MyDORWAY for SCDOR accounts and SUITS for unemployment.
Sales and use tax: the Retail License
A South Carolina LLC selling taxable goods needs a Retail License before its first sale, and that covers internet and infrequent sales too. The fee is $50 and nonrefundable.
The license won’t expire while the same taxpayer stays at the same location, but it isn’t transferable, and each retail location needs its own.
The statewide rate is 6%, plus local taxes filed on one return, and a Retail License isn’t a city or county business license.
Remote sellers and the $100,000 nexus threshold
Out-of-state sellers cross South Carolina’s economic nexus threshold at $100,000 in gross revenue delivered into the state in the current or prior calendar year.
They register for a Retail License on MyDORWAY using the SCDOR-111 RS, then start collecting on the first day of the second calendar month after nexus is established.
Sellers who aren’t sure where they stand can run the Nexus Questionnaire on MyDORWAY before they register.
Marketplace facilitators collect and remit the tax on the seller’s behalf for sales made through their own platforms.
Employer withholding: the SCDOR Withholding Number
An LLC paying wages in South Carolina registers for a Withholding Number through the MyDORWAY Business Tax Application. Out-of-state employers with South Carolina staff need it too, even without an office here.
Unemployment insurance: SC DEW and SUITS
Employers register with SC DEW through SUITS to receive an Employer Account Number. Coverage generally kicks in after $1,500 or more in wages in a calendar quarter, or one worker employed in 20 different weeks during the year.
Corporate License Fee and other accounts
A standard LLC that hasn’t elected corporate tax doesn’t owe South Carolina’s Corporate License Fee.
Only corporations and LLCs taxed as corporations file the CL-1 and pay the $25 initial fee within 60 days, then the annual report and License Fee that follow.
MyDORWAY may also prompt for a Business Personal Property account based on location and NAICS code, a step plenty of guides skip right past.
EIN Mistakes That Trip Up South Carolina LLC Owners
The errors that cost South Carolina owners time tend to repeat. Most have nothing to do with the EIN itself; they’re about the state accounts around it.
- Wrong entity classification: picking “corporation” on the SS-4 when the LLC is really a default LLC.
- A nominee as responsible party: a formation-company employee listed instead of the real owner.
- A duplicate EIN: a second application when a 147C letter would confirm the existing number.
- Name mismatch: an EIN that doesn’t match the Secretary of State record.
- The EIN treated as a state license: the assumption that it covers the Retail License or withholding.
- Stopping at SCDOR: state tax registered, but SC DEW skipped after a first hire.
Two South Carolina mistakes hit my desk almost every month, and both are avoidable.
People pay $200 or so to a third-party site for an “EIN service” that just types their answers into the free IRS form, and that buys them nothing.
An owner hires a first employee, sets up the SCDOR Withholding Number, and never opens the SC DEW account in SUITS. South Carolina treats withholding and unemployment as two separate registrations.
How to Find a Lost EIN or Update a South Carolina LLC
An EIN goes missing more often than you’d think, and it’s almost always fixable without a new one. The quickest checks are the CP 575, a past tax return, or the bank account opened under it.
If none of those turn it up, owners can request a 147C verification letter from the IRS, or use older filings to recover a misplaced EIN.
State numbers sit in their own portals: the Retail License and Withholding Number in MyDORWAY, the Employer Account Number in SUITS.
A new EIN is only required for structural changes, like a sole proprietorship becoming an LLC or a single-member LLC taking on members. Name and address changes don’t need one; those go on Form 8822-B or Form 8832.
South Carolina EIN and State Tax Account Questions
These are the questions South Carolina owners raise most once the EIN arrives. The recurring thread is the line between the federal number and the state accounts.
Is a South Carolina EIN different from a federal EIN?
No, they’re the same number. The Internal Revenue Service issues one EIN, and it doesn’t change because the LLC is based in South Carolina. There’s no separate “South Carolina EIN,” so anyone selling you one is charging for the free federal application.
Is the IRS EIN really free for a South Carolina LLC?
Yes, completely free when you apply directly at IRS.gov. Sites that charge $150 to $300 sell form-filling help, not the number, and the IRS gives the same result at no cost in one online session.
Should I form my South Carolina LLC before applying for the EIN?
Yes, register the LLC with the Secretary of State first. The EIN application asks for your exact legal name, and the CP 575 has to match the state record. Applying early risks a name mismatch that’s slow to fix with the IRS.
Do I need a South Carolina Retail License if I already have an EIN?
If you sell taxable goods, yes. The EIN is federal and does nothing for state sales tax. Retail sales, including online and occasional ones, need a separate $50 Retail License from SCDOR, set up on MyDORWAY before the first sale.
What’s the difference between my EIN, Retail License Number, and Withholding Number?
Three numbers, three jobs. The EIN is your federal ID from the IRS. The Retail License Number is your SCDOR account for sales tax, and the Withholding Number is your SCDOR account for employer income tax. Same agency for the last two, but separate accounts on MyDORWAY.
Do South Carolina employers need both a Withholding Number and an Employer Account Number?
In most cases, yes. The SCDOR Withholding Number covers state income tax taken from paychecks; the SC DEW Employer Account Number covers unemployment insurance. They come from two agencies through MyDORWAY and SUITS, and neither stands in for the other.
What’s the South Carolina remote seller sales tax threshold?
$100,000 in gross revenue delivered into South Carolina in the current or prior calendar year. Cross it and you register for a Retail License through MyDORWAY, then start collecting on the first day of the second calendar month after nexus.
Does a standard South Carolina LLC owe the Corporate License Fee?
No. An LLC that hasn’t elected corporate tax treatment isn’t subject to it. Only corporations and LLCs taxed as corporations file the CL-1 and pay the fee, currently a $25 minimum.
Can a foreign owner get an EIN for a South Carolina LLC without an SSN?
Yes, though not through the online tool, which needs a valid SSN or ITIN. A responsible party without either files Form SS-4 by fax or mail instead. International applicants with no US presence can also call the IRS at 267-941-1099, a route domestic applicants can’t use.
Looking for an overview? See South Carolina LLC Services
Get Your South Carolina EIN Filed the Right Way with Harbor Compliance
The EIN itself is free from the IRS, but Harbor Compliance can help you prepare the application accurately so your South Carolina business has the federal tax ID it needs for banking, payroll, taxes, and state registration steps.
