Freelance Software Engineer Tax Calculator — South Carolina 2026
Tax estimate for freelance Software Engineers in South Carolina: SE tax (15.3%) + federal + South Carolina state income tax (6%), with software engineer-specific deductions.
📌 South Carolina has progressive taxes up to 6.2% for income over $17,500.
📊 Your South Carolina Tax Estimate as a Software Engineer
SE Tax (15.3%)
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Federal Income Tax
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South Carolina State Tax (6%)
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Total Tax Bill
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Effective Rate
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Quarterly Payment
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Top Software Engineer Tax Deductions in South Carolina
✓ Home office (dedicated desk or room)
✓ Computer hardware, monitors, keyboards
✓ Software subscriptions and developer tools
✓ Cloud hosting, APIs, and SaaS for client work
✓ Online courses and technical certifications
✓ Domain names, hosting, and side project costs
✓ Internet bill (business use portion)
💡 Software Engineer tip: Software engineers can deduct the home internet bill at 100% if exclusively used for work, or proportionally if mixed. $80/mo internet = $960/year in deductions.