6.0% (temporarily reduced from 6.2% through June 2026)
Capital Gains Rate
6.0% (same as income, 44% exclusion available)
PTET Election Available
Yes
✓ SALT Workaround Available
Bonus Depreciation Conformity
Does Not Conform
⚠ Add-Back Required
BUSINESS & CORPORATE TAX NOTE
South Carolina corporate income tax is 5.0%. Does not conform to federal bonus depreciation.
Key Planning Insight:
South Carolina offers a 44% capital gains exclusion for gains on SC-source assets — significantly reducing the effective rate to about 3.36%. PTET election is available.
South Carolina-Specific Tax Strategies
These strategies are especially powerful or unique in South Carolina. Click any strategy to learn more.
South Carolina's PTET election allows pass-through entities to pay state income tax at the entity level. The entity-level payment is deductible federally, providing a SALT cap workaround for business owners.
South Carolina allows a 44% exclusion on net long-term capital gains. This effectively reduces the state capital gains rate to approximately 3.9% — making SC one of the more favorable states for realizing capital gains from business sales, real estate, and investments.
Section 179 allows businesses to deduct the full purchase price of qualifying equipment, vehicles, and software in the year of purchase rather than depreciating over time. The 2026 federal limit is over $1 million. Some states cap or limit Section 179 conformity — check your state rules.
S-Corp owners must pay themselves a "reasonable salary" subject to payroll taxes (15.3%), but remaining profits distributed as shareholder distributions avoid self-employment tax entirely. Optimizing the salary-to-distribution ratio is one of the most impactful tax strategies for business owners earning $60,000+ in net profit.
A SEP-IRA allows self-employed individuals and small business owners to contribute up to 25% of net self-employment income (max ~$69,000 for 2026) as a tax-deductible retirement contribution. This is one of the simplest and most powerful ways to reduce taxable income while building retirement savings.
Choosing the right business structure is the single biggest tax decision you'll make. Here's what South Carolina LLC and S-Corp owners need to know.
South Carolina LLC Formation
South Carolina LLCs are taxed as pass-through entities by default. All profits flow to your personal return and are taxed at 6.0% (temporarily reduced from 6.2% through June 2026). Electing S-Corp status can significantly reduce your self-employment tax burden.
LLC vs. S-Corp in South Carolina
South Carolina offers a Pass-Through Entity Tax (PTET) election — a major advantage for LLC and S-Corp owners. By paying state income tax at the entity level, you bypass the $10,000 federal SALT deduction cap and deduct the full state tax bill on your federal return.
Top LLC Write-Offs in South Carolina
South Carolina LLC owners can deduct: business expenses (IRC §162), home office (IRC §280A), vehicle mileage (IRC §179), Section 179 equipment expensing, retirement contributions (Solo 401k or SEP-IRA), health insurance premiums, and business meals. Note: South Carolina does not conform to federal bonus depreciation — an add-back on your state return may be required.
South Carolina Business Tax Note
South Carolina corporate income tax is 5.0%. Does not conform to federal bonus depreciation.
All Federal Write-Offs That Apply in South Carolina
These federal strategies apply to South Carolina residents and business owners. Click any strategy to see full details, savings estimates, and eligibility requirements.
Common questions about South Carolina LLC taxes, S-Corp elections, and business write-offs — answered by Uncle Kam's tax advisors.
South Carolina's top marginal income tax rate is 6.0% (temporarily reduced from 6.2% through June 2026). Business owners and self-employed individuals pay this rate on their net business income. Strategies like the S-Corp election, pass-through entity tax (PTET) election, and maximizing deductions can significantly reduce your effective South Carolina tax rate.
The most powerful write-offs for South Carolina LLC owners include: the S-Corp election to reduce self-employment taxes, Section 179 and bonus depreciation for equipment and real estate, the home office deduction, vehicle and mileage deductions, Solo 401(k) or SEP-IRA contributions, and business meals and travel. South Carolina-specific strategies like the PTET election and state-specific credits can add further savings.
Yes. South Carolina offers a pass-through entity tax election that allows S-Corps and partnerships to pay state income tax at the entity level. This is a powerful SALT workaround that lets business owners deduct state taxes on their federal return, bypassing the $10,000 SALT cap. Uncle Kam's tax advisors can help you determine if the South Carolina PTET election is right for your business.
South Carolina does not fully conform to federal bonus depreciation rules. You may need to add back bonus depreciation on your South Carolina state return and depreciate assets over a longer schedule. However, Section 179 expensing may still be available up to South Carolina's state cap. A tax advisor can help you navigate this.
For most South Carolina business owners earning over $60,000 in net profit, electing S-Corp status can save $5,000–$20,000 per year in self-employment taxes. The right choice depends on your income level, South Carolina's franchise or minimum tax requirements, and your business structure. Uncle Kam's advisors specialize in South Carolina entity structuring — book a free call to get a personalized recommendation.
Self-employed individuals in South Carolina can reduce state taxes by: maximizing business deductions (home office, vehicle, equipment), contributing to a Solo 401(k) or SEP-IRA, electing S-Corp status to reduce self-employment tax, using the PTET election if available, and timing income and deductions strategically. A South Carolina-based tax strategy session with Uncle Kam can identify your biggest opportunities.
Real estate investors in South Carolina benefit most from cost segregation studies (accelerating depreciation on commercial and rental properties), the 1031 exchange (deferring capital gains on property sales), bonus depreciation (if South Carolina conforms), the short-term rental loophole, and real estate professional status (REPS). South Carolina's specific tax rules can significantly impact your real estate ROI — get a free strategy review from Uncle Kam.
WHAT MOST SOUTH CAROLINA BUSINESS OWNERS DON'T KNOW
The South Carolina PTET election can save S-Corp and LLC owners thousands by bypassing the $10,000 SALT cap — most accountants don't file it proactively.
South Carolina does NOT conform to federal bonus depreciation — you may need a state add-back, which many taxpayers miss.
Most taxpayers leave the QBI deduction unclaimed — it reduces taxable income by up to 23% starting 2026 under the OBBBA.
