Use Form SC4868 to request an extension of time to file a South Carolina individual income tax return. File this request on or before April 15, or before the original due date of a fiscal year return. This extension will allow you an additional six months to file your return. The extension of time to file your South Carolina tax return granted by this request does not extend the time for payment of tax. If no income tax is anticipated to be due and you have been granted a federal extension of time to file a federal income tax return, the SCDOR will accept a copy of the federal extension. In this case, you do not need to send South Carolina a copy of the federal form by the due date of the tax return. File your extension and pay your balance due online or file a paper Form SC4868. Mail the original with payment if any. Be sure to check the appropriate box when filing your SC1040 to indicate that you have filed a state or federal extension.