Tax Time Twist: South Carolina Goes Its Own Way, Leaving Taxpayers Scratching Their Heads
This year, South Carolina taxpayers are in for a surprise. While federal tax laws have changed thanks to the One Big Beautiful Bill Act, South Carolina has decided to chart its own course, creating a unique—and potentially confusing—situation for filers. But here’s where it gets controversial: the state’s refusal to adopt federal changes means some taxpayers could end up paying more than they expected. Why? Because South Carolina is no longer automatically conforming to federal tax law updates, and state legislators haven’t stepped in to fill the gap.
As of 2024, South Carolina’s alignment with the Internal Revenue Code has officially ended. This means the state isn’t required to mirror federal tax deductions or adjustments. In a recent conformity letter dated January 30, the state confirmed it won’t implement certain deductions, including those for qualified tips, overtime pay, and passenger vehicle loan interest. And this is the part most people miss: these changes will hit service members particularly hard, as these deductions often make a significant difference in their tax liability.
Susan Vatell, a Liberty Tax franchise owner, explains, “The big change we’re seeing is that South Carolina is taxing tips and overtime, which were previously excluded at the federal level. This means higher taxable income for many filers.” Seniors could also feel the pinch, though South Carolina does offer its own senior deduction, which may soften the blow for some.
Here’s the kicker: even though state legislation could still vote to adopt some federal changes, there’s no guarantee. Vatell advises taxpayers not to wait around. “File as soon as you can,” she urges. “We don’t know if or when the state will act, and waiting could mean unexpected surprises.”
Bold question for our readers: Is South Carolina’s decision to diverge from federal tax laws a smart move for state autonomy, or a recipe for taxpayer confusion? Let us know your thoughts in the comments below.
For now, taxpayers should brace themselves for differences between their federal and state returns. While South Carolina still has time to conform, exceptions and delays mean this year’s filings are likely to include some unwelcome additions. Stay informed, stay prepared, and stay connected with us for more updates like this. For free content and the latest news, download our apps at https://www.wmbfnews.com/page/wmbf-news-apps/. Have feedback? We’d love to hear it—click here to share your thoughts.
Copyright 2026 WMBF. All rights reserved.