South Carolina Annual Report: Corporate Filing Rules, Deadlines, and Fees

If you own or manage a business in South Carolina, you may hear the phrase "annual report" used in more than one way. For corporations, the annual report is not a separate standalone filing in the way it is in some states. Instead, it is part of the South Carolina corporate income tax return, and it is filed with the South Carolina Department of Revenue (SCDOR).

That distinction matters. Many business owners assume all entities have the same reporting requirements, but South Carolina treats corporations, S corporations, and LLCs differently depending on how the business is taxed. Filing the wrong form, missing the due date, or overlooking the one-time initial filing can lead to penalties and compliance problems.

This guide explains who must file, what the annual report includes, when it is due, how fees are calculated, and what to expect if your business is an LLC or a corporation taxed as a corporation.

What South Carolina Means by "Annual Report"

In South Carolina, the corporate annual report is included in the state corporate income tax return. The annual report information appears on Schedule D, which is part of the return.

For corporations, the filing generally serves two purposes:

• It reports the business information the state requires.
• It calculates and pays the corporate license fee and any income tax due.

This is different from states that require a separate annual report filing with the secretary of state or a similar agency.

Who Must File

Generally, the following entities must file a South Carolina corporate income tax return with the annual report included:

• Domestic corporations doing business in South Carolina
• Foreign corporations qualified to do business in South Carolina
• Other corporations required to file a South Carolina income tax return under state law

S corporations and C corporations both have filing obligations, but they use different return forms and have different due dates.

An LLC may also have filing obligations if it is taxed as a corporation. If an LLC is not taxed as a corporation, it is generally not subject to the corporate annual report or the corporate license fee.

Who Usually Does Not File

Not every business entity in South Carolina files this annual report.

In general, the following are not subject to the corporate annual report or license fee:

• LLCs not taxed as corporations
• Entities that are not required to file a South Carolina corporate income tax return

If your business structure changed, or if you elected corporate tax treatment for federal or state purposes, review the filing rules carefully. The tax classification, not just the legal entity type, determines the filing obligation.

Initial Annual Report and CL-1

Before the regular annual filing cycle begins, corporations may also have an initial filing requirement.

South Carolina requires an Initial Annual Report of Corporations, known as Form CL-1, along with a one-time initial corporate license fee of $25. This initial filing is generally due within 60 days of doing business in South Carolina or using capital in the state.

In practice, the CL-1 often comes up when:

• A domestic corporation files Articles of Incorporation
• A foreign corporation applies for authority to transact business in South Carolina
• A corporation begins doing business or uses capital in the state and has not already satisfied the initial filing requirement

If the CL-1 and the $25 fee were not already submitted with the Secretary of State filing, they may need to be sent to the SCDOR within the required time frame.

Due Dates

The filing due date depends on your business type and tax year.

For calendar-year filers, that usually means:

• C corporations: April 15
• S corporations: March 15

If the due date falls on a weekend or state holiday, the filing deadline moves to the next business day.

What the Annual Report Includes

The South Carolina annual report is part of the corporate return, so the form asks for both tax and business information.

Typical information includes:

• Legal business name
• FEIN
• Mailing and audit contact information
• Principal business address
• Registered agent information
• Officer, director, or equivalent management information
• Date the corporation was incorporated
• Date business began in South Carolina
• State of incorporation
• Business activity details
• Share information for corporations, where applicable
• Federal return details and any required attachments

For S corporations, the return also reflects the state income tax treatment for the entity and any other required schedules.

License Fee Rules

South Carolina corporate filings typically include a license fee in addition to any income tax due.

The license fee is generally calculated as:

• 0.1% of capital stock and paid-in surplus
• Plus $15
• Minimum fee: $25

This fee applies to corporations subject to South Carolina corporate reporting requirements. It is important to use the correct figures from your books and records when completing the return.

Filing and Payment Options

South Carolina allows corporate tax returns to be filed electronically or by paper, depending on the filing situation.

Electronic filing is usually the preferred option. The SCDOR recommends filing through approved third-party tax preparation software when possible. Payment can be made through MyDORWAY, the state’s online tax portal.

If your total tax due is $15,000 or more, you must file and pay electronically.

Paper filing is still available for some returns, but the rules are narrower than they used to be. If you choose paper filing, make sure the correct form, schedules, and federal attachments are included.

Common Filing Mistakes

Businesses often run into avoidable problems when they rush the annual report.

Common mistakes include:

• Filing the wrong form for the entity type
• Confusing the annual report with the initial CL-1 filing
• Missing the due date
• Forgetting to include the federal return attachment
• Using outdated ownership or officer information
• Omitting the FEIN
• Assuming an LLC automatically files the same way as a corporation
• Ignoring the electronic filing requirement for larger tax liabilities

A careful review before submission can prevent a late filing penalty and reduce the chance of processing issues.

Late Filing Penalties

If a corporation files late, South Carolina may assess a penalty on unpaid tax.

The general late-filing penalty is 5% of the unpaid tax for each month the return is late, up to a maximum of 25%.

If the return is filed on time but payment is late, separate penalties and interest may apply. Even when a business has little or no activity, the return may still be required if the entity remains active for tax purposes.

What If Your Business Had No Income?

A common misconception is that a business without income does not need to file.

For South Carolina corporations, the return is still generally required even if the business had no income or no business activity for the year. If the corporation is still registered and has not been dissolved or withdrawn, compliance may still be necessary.

That is one reason many owners treat the annual report as a calendar item rather than a tax-season afterthought.

South Carolina Annual Report FAQ

Is the annual report filed with the Secretary of State?

For corporations, the annual report is part of the corporate income tax return filed with the SCDOR. It is not a separate annual report filing like in some other states.

Do LLCs file a South Carolina annual report?

LLCs that are not taxed as corporations generally do not file the corporate annual report or pay the corporate license fee.

Does an LLC taxed as a corporation have to file?

Yes. If an LLC is taxed as a corporation, it may have corporate filing obligations.

What form does an S corporation use?

S corporations generally file Form SC1120S.

What form does a C corporation use?

C corporations generally file Form SC1120.

Is the initial CL-1 the same as the annual report?

No. The CL-1 is the initial annual report of corporations and one-time initial license fee filing. The regular annual report is part of the yearly corporate tax return.

Staying Compliant in South Carolina

The easiest way to handle South Carolina annual reporting is to track three things:

• Your entity classification
• Your filing due date
• Whether the CL-1 and initial fee have already been handled

Once those basics are clear, annual compliance becomes much easier to manage. That is especially true for businesses with changing ownership, multiple officers, or operations in more than one state.

For many business owners, the biggest risk is not the tax calculation itself. It is missing a filing deadline because the state’s annual report is embedded in the income tax return rather than appearing as a separate reminder.

How Zenind Can Help

Zenind helps business owners stay organized with formation and compliance support so important state deadlines are not overlooked. If your South Carolina business needs help keeping track of filing obligations, building a compliance calendar, or handling business entity maintenance, support from a dedicated service can reduce administrative friction.

The key is simple: know whether your entity must file, know which form applies, and file on time.

Final Takeaway

South Carolina’s annual report system is straightforward once you understand the structure. For corporations, the annual report is included in the state corporate income tax return, not filed as a separate standalone document. S corporations and C corporations have different deadlines, the initial CL-1 filing may apply early in the life of the business, and LLCs are generally treated differently unless they are taxed as corporations.

If you keep the entity type, tax classification, and due date straight, South Carolina compliance is manageable and predictable.