Effective June 28, 2012, South Carolina income tax rates for pass-through trade and business income are gradually reduced from 5% to 3% over a three-year period. For tax years 2008 through 2011, the rate was 5%; for 2012, the rate is 4.33%; for 2013, the rate is 3.67%; and for tax years after 2013, the rate is 3%.
H.B. 5418 , Laws 2012, effective as noted above