$82,980/yr
take-home on a $120,000 salary in South Carolina — after $7,440 state income tax (6.20%) and $29,580 federal + FICA.
The breakdown
$120,000 × ~17% federal effective + 7.65% FICA = $29,580 federal/payroll
+ $7,440 SC state income tax (6.20%, ~6.2% top (2025))
= $82,980/yr after tax
· Tax Foundation, “State Individual Income Tax Rates and Brackets, 2025” + state revenue departments. Modeled as an effective planning rate for a typical $80k–$160k filer — not a full bracket engine.