Best Business Entity Types for South Carolina Businesses

A business entity is two decisions that are easy to confuse: the legal structure you form with the South Carolina Secretary of State, and the tax classification you have with the IRS. The same LLC can be taxed as a sole proprietorship, a partnership, an S corporation or a C corporation. The options below are listed roughly from simplest to most complex, with the South Carolina points that change the answer. For the most common decision, see our LLC vs. S corporation article.

1. 01

   Sole proprietorship

   Best for: A single owner testing an idea with little liability exposure

   No state formation filing is needed, and the income goes on the owner's return with self-employment tax on the profit. The owner has unlimited personal liability. South Carolina does not register DBAs at the state level, so a trade name is usually recorded on the local business license.

   • Simplest to start and run
   • Unlimited personal liability
   • Local business license still required
2. 02

   General partnership

   Best for: Two or more owners who have not formed an entity yet, often by default

   A partnership exists when two or more people run a business together, whether or not they file anything. Each partner has unlimited personal liability, and partners generally pay self-employment tax on their share. The partnership files a federal Form 1065 and a South Carolina SC1065.

   • Can arise without a formal filing
   • Unlimited liability for general partners
   • SC1065 due the 15th day of the third month
3. 03

   Limited partnership

   Best for: Ventures with passive investors alongside a managing partner

   A limited partnership separates general partners, who manage and carry unlimited liability, from limited partners, whose liability is limited. SC Business One Stop notes that limited partners are generally outside self-employment tax. It is used more for investment and real estate ventures than for operating businesses.

   • Needs at least one general partner
   • Limited partners generally outside SE tax
   • Files as a partnership for tax
4. 04

   Single-member LLC

   Best for: Most solo owners who want liability protection without a separate tax return

   Formed with the South Carolina Secretary of State, a single-member LLC gives the owner liability protection while the IRS, by default, disregards it: profit is reported on the owner's return and subject to self-employment tax. It can later elect to be taxed as an S or C corporation without changing the legal entity.

   • Formed online through Business Entities Online
   • Disregarded for federal tax by default
   • Can elect S or C corporation treatment later
   Read more →
5. 05

   Multi-member LLC

   Best for: Partners who want liability protection and flexible profit splits

   An LLC with two or more members is classified as a partnership for federal tax unless it elects otherwise on Form 8832. It files Form 1065 and the SC1065 and issues K-1s. A written operating agreement matters more here than almost anywhere else, because it governs how profits, losses and decisions are shared.

   • Partnership tax treatment by default
   • Flexible allocations under the operating agreement
   • Can make the SC active trade or business election at entity level
6. 06

   LLC taxed as an S corporation

   Best for: Profitable owner-operators who can support a reasonable salary

   Filing Form 2553 lets an eligible LLC be treated as a corporation and taxed as an S corporation without a separate Form 8832. The owner must be paid reasonable compensation through payroll before taking distributions, and only the wages carry payroll tax. The election must generally be filed within 2 months and 15 days after the start of the tax year it is to take effect.

   • Keeps the LLC as the legal entity
   • Reasonable compensation is required
   • Adds payroll, a separate return and K-1s
   Read more →
7. 07

   S corporation

   Best for: Owners who want corporate form with pass-through taxation

   A corporation that elects S status passes income through to shareholders. It must be a domestic corporation with no more than 100 shareholders and one class of stock, and shareholders cannot be partnerships, corporations or nonresident aliens. In South Carolina it files the SC1120S, which includes the annual report, and pays an annual license fee of 0.1% of capital and paid-in surplus plus $15, with a $25 minimum.

   • Up to 100 eligible shareholders, one class of stock
   • SC1120S due the 15th day of the third month
   • Annual SC license fee applies
8. 08

   C corporation

   Best for: Businesses raising outside equity or retaining most earnings in the company

   A C corporation pays its own tax: the federal rate is a flat 21%, and South Carolina imposes corporate income tax at 5% of SC taxable income. Dividends are taxed again to shareholders. SC corporations file the SC1120, pay the annual license fee, and submit the Initial Annual Report of Corporations (CL-1) to the Secretary of State.

   • SC corporate rate 5%
   • Profits taxed at entity level and again when distributed
   • SC1120 due the 15th day of the fourth month

The information on this site is general in nature and is not tax, legal, or accounting advice for your situation. Tax law changes and the right answer depends on facts we would need to review with you. Please speak with a qualified professional before acting on anything you read here.

Keep reading

• Best Small Business Accountants in Charleston (2026)Haigler CPA Group's 2026 list of Charleston-area CPA firms for small businesses: tax, bookkeeping and planning, with what each firm's own site says.
• Best Ways to Reduce Self-Employment TaxSeven legitimate ways to lower self-employment tax in 2026, from business deductions and depreciation to an S corporation election, and what does not help.
• Key South Carolina Tax DeadlinesSouth Carolina income, estimated, withholding, sales, S corp and C corp tax due dates for late 2026 and 2027, plus Charleston property tax and license dates.
• LLC vs. S Corporation Taxes in South CarolinaAn LLC and an S corporation are not two competing entities — one is a state-law structure, the other a federal tax election, and most South Carolina owners can have both. What changes is how much of your profit is exposed to self-employment tax.
• Business TaxYear-round planning, corporate returns, pass-through entities and multi-state compliance.
• Tax Planning & AdvisoryThe plan that ties entity choice, timing, property and exit decisions together.
• All Charleston tax & accounting guidesEvery list, choosing a CPA and the tax reference lists.