South Carolina business compliance calendar: annual report, taxes, employer filings

South Carolina business compliance calendar

What South Carolina asks of a company or a nonprofit registered or doing business there, beyond the federal filings every organization owes. Pick your entity type for the full calendar with dates.

Registration and franchise filings

Entity	Filing	Fee	If missed
Corporations	Corporate income tax return with the annual report, by the 15th day of the 4th month after the fiscal year ends (April 15 for a calendar year), with the South Carolina Department of Revenue	$25 license fee plus license tax on capital, with the income tax at 5%	5% a month late, up to 25%
LLCs	No annual report
Partnerships	No annual report
Nonprofits	No annual report

Taxes and employers

Corporate income tax: Yes. C corporations file a South Carolina return by the 15th day of the fourth month after the year ends, with the South Carolina Department of Revenue.
Personal income tax: Yes. S corporations and partnerships file a South Carolina information return, and employers withhold state income tax.
Employers: Register for unemployment insurance and file wage reports every quarter. Reconcile income tax withholding after year end.
Sources: South Carolina Secretary of State, South Carolina Department of Revenue

All South Carolina rules in the pack

South Carolina corporate income tax return with the annual reportby the 15th day of the 4th month after the fiscal year ends (April 15 for a calendar year)
South Carolina charitable organization registration renewalby the 15th day of the 5th month after the fiscal year ends (May 15 for a calendar year)
South Carolina corporate estimated tax paymenton the 15th day of the 4th, 6th, 9th, 12th months of the fiscal year (April 15, June 15, September 15, December 15 for a calendar year)
South Carolina pass through entity returnby the 15th day of the 3rd month after the fiscal year ends (March 15 for a calendar year)
South Carolina personal income tax return with business incomeby April 15 each year
South Carolina unemployment insurance wage reportby the last day of the 1st month after each quarter
South Carolina annual withholding reconciliationby January 31 each year
South Carolina sales tax returnby the 20th day of the 1st month after each quarter

Your company's compliance calendar

Three answers to start. Refine it after.

What kind of organization is it?

An LLC's tax treatment decides which federal return it files. Choose the line that matches yours. Nonprofits are covered too.

State of formation

Employees

Count everyone on payroll. An S corporation's working owners are employees: they are paid a salary.

Where is it based? The state of the office, or of most of the people

A company based outside its state of formation is registered in both and files in both.

More about the company: other states, payroll, dates, abroad

Company name

Date registered in each other state

Optional. Some states key their report to the day you registered there rather than your date of formation; without it, the formation date stands in and the calendar says so.

Who runs payroll?

Fiscal year ends in

Date of formation

Needed for states that key filings to the anniversary of formation.

Annual revenue

Some taxes start at a revenue threshold.

We pay independent contractors We offer a retirement plan (401(k), SIMPLE, SEP)

Outside the United States We hold a bank or financial account outside the US A person or company outside the US owns 25% or more of it We own 10% or more of a company outside the US We pay people or companies outside the US

Each adds the FinCEN or IRS form that comes with it: the FBAR, Form 5472, Form 5471, Forms 1042 and 1042-S.

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