💼 Side Hustle Tax Calculators South Carolina

South Carolina Side Hustle Tax Calculator

Calculate taxes on side hustle income in South Carolina. See self-employment tax, federal & state taxes, and quarterly payment estimates for gig workers.

Free — No Sign-up Verified Data Editorially Reviewed Updated Feb 2026

South Carolina Quick Facts

6.4% Income Tax Rate

0.57% Property Tax Rate

$56,227 Median Income

95 Cost of Living

How This Calculator Works

Calculation methodology and assumptions

Side hustle tax calculation for South Carolina. Side income over $400 triggers self-employment tax (15.3% on 92.35% of net earnings), covering Social Security (12.4%) and Medicare (2.9%). Federal income tax applies at marginal rates based on combined W-2 + side income. South Carolina state tax applies at up to 6.4%. Deductible expenses reduce both income tax and SE tax bases.

Key State Information

South Carolina side hustle tax facts: State tax up to 6.4% | Cost of living index 95 | Median income $56,227.

Standard financial formulas Pre-filled with real state data Estimates only — not financial advice

Data Source

IRS, Tax Foundation

View Original Source | Verified 2024-12-01 | Updated annually

Frequently Asked Questions

How much tax do I pay on side hustle income in South Carolina?

Side hustle income is subject to self-employment tax (15.3%) plus federal income tax at your marginal rate (typically 22-32% for most side hustlers). In South Carolina, add 6.4% state tax. Total effective rate is typically 30-45%.

Do I need to pay quarterly taxes on side hustle income in South Carolina?

If you expect to owe $1,000+ in taxes on your side income, the IRS requires quarterly estimated payments (due April 15, June 15, Sep 15, Jan 15). South Carolina also requires quarterly state estimated payments if you owe $500+.