This blog was last updated on March 13, 2019
The South Carolina Department of Revenue recently published Information Letter #17-9, detailing interest rates for overpayments and underpayments relating to withholding tax through September 2017. South Carolina publishes these Information Letters periodically throughout the year, and these letters are the primary method of notifying the taxpaying public about changes in withholding tax interest.
The effective interest rate for overpayments and underpayments relative to withholding tax payments remains unchanged from the previous Information Letter (#17-5) at 4% through September 30, 2017.
To review this letter in full, please click here.