S.C. Code Ann. § 12-37-223A
(A) As authorized by Section 3, Article X of the South Carolina Constitution, the General Assembly hereby authorizes the governing body of a county by ordinance to exempt an amount of fair market value of real property located in the county sufficient to limit to fifteen percent any valuation increase attributable to a countywide appraisal and equalization program conducted pursuant to Section 12-43-217. An exemption allowed by this section does not apply to:
(D) Once the taxable value of a property is reduced because of the exemption provided for in subsection (A), that reduced value shall continue and remain in effect, except as otherwise provided in subsection (A)(3), until the implementation of the next equalization and reassessment program, provided the ordinance authorizing such exemption remains in effect. The effect of this exemption is, that upon the implementation of each subsequent equalization and reassessment program, the value of the property as determined under Section 12-37-930, reduced by the amount of any exemption granted under this section, may increase no more than fifteen percent.
When a property is transferred such that the property is no longer eligible for the exemption provided for in subsection (A), the property is subject to being taxed in the tax year following the transfer at its value, as determined under Section 12-37-930, at market value based on the sale or transfer of ownership or at the appraised value determined by the county assessor.
Property transferred on or after January first of the year of implementation of an appraisal and equalization program conducted pursuant to Section 12-43-217 but prior to the effective date of the ordinance implementing the exemption authorized in subsection (A) shall be eligible for the exemption; such exemption shall remain in effect until a subsequent disqualifying transfer.
(E) For counties adopting an ordinance as authorized in subsection (A), the closing attorney involved in a real estate transfer occurring subsequent to such enactment shall provide the following notice to the buyer(s):
REAL PROPERTY TRANSFERRED AS A RESULT OF THIS TRANSACTION MAY BE SUBJECT TO PROPERTY TAXATION DURING THE NEXT TAX YEAR AT A VALUE THAT REFLECTS ITS FAIR MARKET VALUE.
(F) To qualify for the exemption authorized under subsection (A), the owner of the property for which the exemption is sought or the owner's agent must apply to the county assessor where the property is located and establish eligibility for the exemption. The time period for making application for the exemption provided for in subsection (A), or for seeking a refund of taxes paid as a result of a subsequent determination of eligibility for the exemption, shall be the same as provided for in Section 12-43-220(c) for administering the special legal residence assessment ratio, mutatis mutandis.
Under penalty of perjury, the taxpayer must certify that the property meets the qualifications established in subsection (A) for eligibility for the exemption and provide such other proof as may be required by the county assessor. The burden is on the taxpayer to establish eligibility for the exemption. The Department of Revenue shall assist the applicant and the assessor to the extent practicable in providing information necessary or helpful in determining eligibility. If the assessor determines the applicant ineligible, the value of the property shall be determined by the assessor.
No further application is necessary from the owner who qualified the property for the exemption while the property continues to meet the eligibility requirements. If a change in ownership occurs, the owner who had qualified for the exemption shall notify the assessor within six months of the transfer of title. Another application is required by the new owner if the new owner seeks to qualify for the exemption provided by this section.
If a person signs the certification, obtains the exemption, and is, thereafter, found not eligible, a penalty may be imposed equal to one hundred percent of the tax paid, plus interest on that amount at a rate of one-half of one percent a month, but in no case less than thirty dollars nor more than the current year's taxes assessed on the value of the property without regard to the exemption.