South Carolina State Tax Rulings
Free plain-English summaries of state tax letter rulings and advisory opinions issued in South Carolina, with full citations and the original source on every page.
No South Carolina rulings match these filters
Try a different search term or clear the filters.
What is South Carolina's tax interest rate for underpayments and overpayments for the period beginning October 1, 2023 (per SC IL #23-17)?
8%. SC Information Letter #23-17 sets South Carolina's interest rate on tax underpayments and overpayments at 8% for the period October 1, 2023 through March 31, 2024. Interest is compounded daily, ex…
What South Carolina tax interest rate applied from October 1 through December 31, 2023, including eligible refund interest?
South Carolina's listed tax interest rate increased from 7% to 8% for October 1 through December 31, 2023. Interest generally compounded daily, except estimated-tax underpayments used simple interest.…
What South Carolina tax interest rate applied through September 30, 2023, including eligible refund interest for fiscal year 2023-2024?
The listed South Carolina tax interest rate remained 7% from January 1 through September 30, 2023. Interest generally compounded daily, except estimated-tax underpayments used simple interest. For fis…
What South Carolina tax interest rate applied from January 1 through June 30, 2023, including eligible refund interest?
The listed rate for South Carolina tax underpayments and overpayments from January 1 through June 30, 2023 was 7%. Interest generally compounded daily, while estimated-tax underpayments used simple in…
What is South Carolina's tax interest rate for underpayments and overpayments for the period beginning January 1, 2023 (per SC IL #22-22)?
7%. SC Information Letter #22-22 sets South Carolina's interest rate on tax underpayments and overpayments at 7% for the period January 1, 2023 through March 31, 2023, up from 6% for the prior period …
What is South Carolina's tax interest rate for underpayments and overpayments for the period beginning October 1, 2022 (per SC IL #22-13)?
6%. SC Information Letter #22-13 sets South Carolina's interest rate on tax underpayments and overpayments at 6% for the period October 1, 2022 through December 31, 2022, up from 5% for the prior peri…
What is South Carolina's tax interest rate for underpayments and overpayments for the period beginning July 1, 2022 (per SC IL #22-9)?
5%. SC Information Letter #22-9 sets South Carolina's interest rate on tax underpayments and overpayments at 5% for the period July 1, 2022 through September 30, 2022, up from 4% for the prior period …
What is South Carolina's tax interest rate for underpayments and overpayments for the period beginning April 1, 2022 (per SC IL #22-3)?
4%. SC Information Letter #22-3 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2022 through June 30, 2022, up from 3% for the prior period (Jul…
What is South Carolina's tax interest rate for underpayments and overpayments for the period ending June 30, 2021 (per SC IL #21-5)?
3%. SC Information Letter #21-5 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period July 1, 2020 through June 30, 2021. Interest is compounded daily, except …
What is South Carolina's tax interest rate for underpayments and overpayments for the period ending June 30, 2020 (per SC IL #20-1)?
5%. SC Information Letter #20-1 sets South Carolina's interest rate on tax underpayments and overpayments at 5% for the period July 1, 2019 through June 30, 2020. Interest is compounded daily, except …
What is South Carolina's tax interest rate for underpayments and overpayments for the period ending June 30, 2019 (per SC IL #19-6)?
6%. SC Information Letter #19-6 sets South Carolina's interest rate on tax underpayments and overpayments at 6% for the period January 1, 2019 through June 30, 2019. Interest is compounded daily, exce…
What is South Carolina's tax interest rate for underpayments and overpayments for the period beginning April 1, 2018 (per SC IL #18-11)?
5%. SC Information Letter #18-11 sets South Carolina's interest rate on tax underpayments and overpayments at 5% for the period April 1, 2018 through December 31, 2018. Interest is compounded daily, e…
What is South Carolina's tax interest rate for underpayments and overpayments for the period beginning April 1, 2018 (per SC IL #18-7)?
5%. SC Information Letter #18-7 sets South Carolina's interest rate on tax underpayments and overpayments at 5% for the period April 1, 2018 through September 30, 2018. Interest is compounded daily, e…
What is South Carolina's tax interest rate for underpayments and overpayments for the period beginning April 1, 2018 (per SC IL #18-2)?
5%. SC Information Letter #18-2 sets South Carolina's interest rate on tax underpayments and overpayments at 5% for the period April 1, 2018 through June 30, 2018. Interest is compounded daily, except…
What is South Carolina's tax interest rate for underpayments and overpayments for the period ending September 30, 2017 (per SC IL #17-9)?
4%. SC Information Letter #17-9 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2016 through September 30, 2017. Interest is compounded daily, e…
What is South Carolina's tax interest rate for underpayments and overpayments for the period ending June 30, 2017 (per SC IL #17-5)?
4%. SC Information Letter #17-5 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2016 through June 30, 2017. Interest is compounded daily, except…
What is South Carolina's tax interest rate for underpayments and overpayments for the period April 1, 2016 through December 31, 2016 (per SC IL #16-9)?
4%. SC Information Letter #16-9 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2016 through December 31, 2016. Interest is compounded daily, ex…
What is South Carolina's tax interest rate for underpayments and overpayments for the period April 1, 2016 through September 30, 2016 (per SC IL #16-7)?
4%. SC Information Letter #16-7 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2016 through September 30, 2016. Interest is compounded daily, e…
What is South Carolina's tax interest rate for underpayments and overpayments for the period April 1, 2016 through June 30, 2016 (per SC IL #16-4)?
4%. SC Information Letter #16-4 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2016 through June 30, 2016. Interest is compounded daily, except…
What is South Carolina's tax interest rate for underpayments and overpayments for the period ending March 31, 2016 (per SC IL #16-1)?
3%. SC Information Letter #16-1 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through March 31, 2016. Interest is compounded daily, exc…
What is South Carolina's tax interest rate for underpayments and overpayments for the period ending December 31, 2015 (per SC IL #15-13)?
3%. SC Information Letter #15-13 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through December 31, 2015. Interest is compounded daily,…
What is South Carolina's tax interest rate for underpayments and overpayments for the period ending September 30, 2015 (per SC IL #15-8)?
3%. SC Information Letter #15-8 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through September 30, 2015. Interest is compounded daily,…
What is South Carolina's tax interest rate for underpayments and overpayments for the period ending June 30, 2015 (per SC IL #15-2)?
3%. SC Information Letter #15-2 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through June 30, 2015. Interest is compounded daily, exce…
What is South Carolina's tax interest rate for the period ending March 31, 2015 (per SC IL #14-16)?
3%. SC Information Letter #14-16 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through March 31, 2015. Interest is compounded daily, ex…
What is South Carolina's tax interest rate for the period ending December 31, 2014 (per SC IL #14-13)?
3%. SC Information Letter #14-13 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through December 31, 2014. Interest is compounded daily,…
What is South Carolina's tax interest rate for the period ending September 30, 2014 (per SC IL #14-8)?
3%. SC Information Letter #14-8 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through September 30, 2014. Interest is compounded daily,…
What is South Carolina's tax interest rate for the period ending June 30, 2014 (per SC IL #14-3)?
3%. SC Information Letter #14-3 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through June 30, 2014. Interest is compounded daily, exce…
What is South Carolina's tax interest rate for the period ending March 31, 2014 (per SC IL #13-18)?
3%. SC Information Letter #13-18 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through March 31, 2014. Interest is compounded daily, ex…
What is South Carolina's tax interest rate for the period ending December 31, 2013 (per SC IL #13-14)?
3%. SC Information Letter #13-14 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through December 31, 2013. Interest is compounded daily,…
What is South Carolina's tax interest rate for the period ending September 30, 2013 (per SC IL #13-11)?
3%. SC Information Letter #13-11 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through September 30, 2013. Interest is compounded daily…
What is South Carolina's tax interest rate for the period ending June 30, 2013 (per SC IL #13-5)?
3%. SC Information Letter #13-5 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through June 30, 2013. Interest is compounded daily, exce…
What is South Carolina's tax interest rate for the period ending March 31, 2013 (per SC IL #12-20)?
3%. SC Information Letter #12-20 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through March 31, 2013. Interest is compounded daily, ex…
What is South Carolina's tax interest rate for the period ending December 31, 2012 (per SC IL #12-12)?
3%. SC Information Letter #12-12 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through December 31, 2012. Interest is compounded daily,…
What is South Carolina's tax interest rate for the period ending September 30, 2012 (per SC IL #12-8)?
3%. SC Information Letter #12-8 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through September 30, 2012. Interest is compounded daily,…
What is South Carolina's tax interest rate for the period ending June 30, 2012 (per SC IL #12-3)?
3%. SC Information Letter #12-3 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through June 30, 2012. Interest is compounded daily, exce…
What is South Carolina's tax interest rate for the period ending March 31, 2012 (per SC IL #11-20)?
3%. SC Information Letter #11-20 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through March 31, 2012. Interest is compounded daily, ex…
What is South Carolina's tax interest rate for the period ending December 31, 2011 (per SC IL #11-14)?
3%. SC Information Letter #11-14 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period October 1, 2011 through December 31, 2011 — down from 4% in the prior qu…
What is South Carolina's tax interest rate for the period ending September 30, 2011 (per SC IL #11-10)?
4%. SC Information Letter #11-10 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2011 through September 30, 2011. Interest is compounded daily, …
What is South Carolina's tax interest rate for the period ending June 30, 2011 (per SC IL #11-3)?
4%. SC Information Letter #11-3 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2011 through June 30, 2011. Interest is compounded daily, except…
What is South Carolina's tax interest rate for the period ending March 31, 2011 (per SC IL #10-14)?
3%. SC Information Letter #10-14 sets South Carolina's interest rate on tax underpayments and overpayments at 3% for the period January 1, 2011 through March 31, 2011. Interest is compounded daily, ex…
What is South Carolina's tax interest rate for the period ending December 31, 2010 (per SC IL #10-8)?
4%. SC Information Letter #10-8 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2009 through December 31, 2010. Interest is compounded daily, ex…
What is South Carolina's tax interest rate for the period ending September 30, 2010 (per SC IL #10-5)?
4%. SC Information Letter #10-5 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2009 through September 30, 2010. Interest is compounded daily, e…
What is South Carolina's tax interest rate for the period ending June 30, 2010 (per SC IL #10-2)?
4%. SC Information Letter #10-2 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2009 through June 30, 2010. Interest is compounded daily, except…
What is South Carolina's tax interest rate for the period ending March 31, 2010 (per SC IL #09-22)?
4%. SC Information Letter #09-22 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2009 through March 31, 2010 — extending the same 4% rate the De…
What is South Carolina's tax interest rate for the period ending December 31, 2009 (per SC IL #09-15)?
4%. SC Information Letter #09-15 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2009 through December 31, 2009. Interest is compounded daily, e…
What is South Carolina's tax interest rate for the period ending September 30, 2009 (per SC IL #09-7)?
4%. SC Information Letter #09-7 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2009 through September 30, 2009. Interest is compounded daily, e…
What is South Carolina's tax interest rate for the period ending June 30, 2009 (per SC IL #09-3)?
4%. SC Information Letter #09-3 sets South Carolina's interest rate on tax underpayments and overpayments at 4% for the period April 1, 2009 through June 30, 2009. Interest is compounded daily, except…
What is South Carolina's tax interest rate for the period January 1, 2009 through March 31, 2009 (per SC IL #08-25)?
5%. SC Information Letter #08-25 sets South Carolina's interest rate on tax underpayments and overpayments at 5% for the period January 1, 2009 through March 31, 2009. Interest is compounded daily, ex…
What is South Carolina's tax interest rate for the period October 1, 2008 through December 31, 2008 (per SC IL #08-18)?
6%. SC Information Letter #08-18 sets South Carolina's interest rate on tax underpayments and overpayments at 6% for the period October 1, 2008 through December 31, 2008. Interest is compounded daily,…
What is South Carolina's tax interest rate for the period July 1, 2008 through September 30, 2008 (per SC IL #08-9)?
5%. SC Information Letter #08-9 sets South Carolina's interest rate on tax underpayments and overpayments at 5% for the period July 1, 2008 through September 30, 2008. Interest is compounded daily, ex…
What is South Carolina's tax interest rate for the period April 1, 2008 through June 30, 2008 (per SC IL #08-4)?
6%. SC Information Letter #08-4 sets South Carolina's interest rate on tax underpayments and overpayments at 6% for the period April 1, 2008 through June 30, 2008. Interest is compounded daily, except…
What is South Carolina's tax interest rate for the period January 1, 2008 through March 31, 2008 (per SC IL #07-21)?
7%. SC Information Letter #07-21 sets South Carolina's interest rate on tax underpayments and overpayments at 7% for the period January 1, 2008 through March 31, 2008. Interest is compounded daily, ex…
What is South Carolina's tax interest rate for the period July 1, 2006 through December 31, 2007 (per SC IL #07-17)?
8%. SC Information Letter #07-17 sets South Carolina's interest rate on tax underpayments and overpayments at 8% for the period July 1, 2006 through December 31, 2007. Interest is compounded daily, ex…
What is South Carolina's tax interest rate for the period July 1, 2006 through September 30, 2007 (per SC IL #07-13)?
8%. SC Information Letter #07-13 sets South Carolina's interest rate on tax underpayments and overpayments at 8% for the period July 1, 2006 through September 30, 2007. Interest is compounded daily, e…
What is South Carolina's tax interest rate for the period July 1, 2006 through June 30, 2007 (per SC IL #07-6)?
8%. SC Information Letter #07-6 sets South Carolina's interest rate on tax underpayments and overpayments at 8% for the period July 1, 2006 through June 30, 2007. Interest is compounded daily, except …
What South Carolina tax interest rate applied from October 1, 2005 through June 30, 2006?
7%. SC Information Letter #06-6 lists South Carolina's interest rate on tax underpayments and overpayments as 7% for October 1, 2005 through June 30, 2006. Interest was compounded daily, except simple…
Browse South Carolina rulings by topic
These are official tax letter rulings and advisory opinions issued by South Carolina's revenue authority in response to questions from specific taxpayers about how the tax law applies to their facts. A ruling is binding on the department only for the taxpayer who requested it and cannot be relied on by anyone else, but it is strong evidence of how the state reads the law. Every ruling above has a plain-English question and short answer, plus a link to the full original source.