South Carolina State Tax Extension

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Filing an Extension in South Carolina

The South Carolina Department of Revenue will grant an automatic six-month extension of time to file until Oct 15, 2017 by filing SC Form SC 4868 on or before April 18, 2017.

South Carolina will also accept a federal extension of time to file if no South Carolina income tax is anticipated to be due on your return. In this case, you do not need to send SC a copy of the federal form by the due date. Check the box on the front of the SC Form SC1040 if you have filed an extension and attach a copy of the federal extension to your return when filed.

To avoid penalties, South Carolina requires that at least 90% of your total tax liability (or 100% of your 2016 tax liability) by April 18, 2017 and the balance with the filing of your return. An extension to file your return is not an extension of time to pay your taxes, and avoids a late filing penalty.

 

If You Owe

If you owe additional state income tax, you are required to file Form SC4868 and attach payment of taxes you estimate you owe by April 18, 2017. To avoid penalties, South Carolina requires that 90% of the total tax liability be paid by April 18, 2017. Note: If your Adjusted Gross Income exceeded $150,000 in 2016, you must pay 90% of your 2016 tax liability or 110% of your 2016 tax liability to avoid a penalty. Remember, an extension only allows you additional time to file your return. Your tax must still be paid to avoid penalty and interest.

Pay Online

Pay your taxes online at the South Carolina Department of Revenue ePAY. Pay by Visa or MasterCard or Electronic Funds Withdrawal (EFW). There is no additional charge for paying your balance due by credit card. If you pay your balance due by EFW, funds are automatically withdrawn from your checking or savings account based on the payment date you select. EFW is also a free service to taxpayers.

You can also pay your taxes online at Official Payments Corporation. Visa, MasterCard, Discover Network, and American Express credit and debit cards, and other forms of payment, such as Bill Me LaterĀ® are accepted. To make a debit card payment you can use a MasterCard or Visa Debit Card or any debit card with Nyce, Pulse or Star logos.

There is a convenience fee for this service which is paid directly to the company. The amount of the fee is based on the amount of your payment.

Pay by Phone

Pay your taxes by phone by calling Official Payments toll-free at 1-800-272-9829. This automated service is available 24 hours, 7 days a week. At the end of your call you will be given a confirmation number. Save this as proof of payment for your records.

There is a convenience fee for this service which is paid directly to the company. The amount of the fee is based on the amount of your payment.

Pay by Mail

Along with the extension form, send a check or money order in the amount of the estimated tax due made payable to SC Department of Revenue. Mail to:
SC Department of Revenue
Income Tax
Columbia, SC 29214-0013

Penalty and Interest Charges on Tax Owed

In all cases, interest will be charged from the date the tax should have been paid (April 18, 2017) until the date of payment. Any unpaid portion of the final due will incur interest at the prevailing federal rates. In addition, the state may assess the following penalties:

  • Late Payment Penalty: South Carolina may assess a late payment penalty of 0.5% (0.5%) per month to a maximum of 25% of the outstanding balance if you do not pay 90% of the tax due with the filing of your return.
  • Failure to File Penalty: If you do not file your return by August 15, 2017, you may be assessed an additional penalty of 5% per month up to 25% of the balance due.

If You Do Not Owe

South Carolina requires that you request an extension, even if you do not owe or are expecting a tax refund.

For more information, visit South Carolina Department of Revenue.