S.C. Code § 12-67-170
Notwithstanding any other provision of this chapter, if a taxpayer files a notice of intent to rehabilitate and has been rehabilitating an abandoned building continuously for the preceding year and is more than sixty percent complete, then the taxpayer must be allowed to extend the placed in service date until ninety days after completion of construction, provided construction continues diligently until that date. Nothing in this section may be construed to allow a taxpayer to earn a credit allowed by this chapter before the applicable phase or portion of the building site is placed in service.
S.C. Code § 12-67-170
2019 Act No. 50, Sections 2.A and 3, provide as follows:
"SECTION 2.A. Notwithstanding Section 1 of Act 265 of 2018, and Section 1.B. of Act 57 of 2013, upon the repeal of Chapter 67, Title 12 of the 1976 Code, any carryforward credits shall continue to be allowed until the five or eight year time period in Section 12-67-140 is completed."
"SECTION 3. This act takes effect upon approval by the Governor and first applies to tax years beginning after 2017."
2021 Act No. 21, Section 1, provides as follows:
"SECTION 1. Notwithstanding SECTION 1.B. of Act 57 of 2013, the provisions of Chapter 67, Title 12 of the 1976 Code are repealed on December 31, 2025."