South Carolina offers one of the most favorable state tax environments for long-term investors. While the state does tax capital gains as ordinary income, South Carolina provides a 44% net capital gains deduction, which significantly reduces the effective tax rate for long-term capital gains. This makes South Carolina an appealing state for individuals selling appreciated stock, real estate, or business interests. This guide breaks down how capital gains are taxed in South Carolina in 2025, how federal rules apply, and which strategies can help reduce your tax burden.
What Are Capital Gains?
Capital gains are the profits earned when you sell assets—such as stocks, rental properties, cryptocurrency, or business interests—for more than your purchase price.
Only realized capital gains are taxable. Unrealized gains (increases in value before selling) are not taxed.
Short-Term vs. Long-Term Capital Gains
For federal tax purposes:
- Short-term capital gains: Held one year or less and taxed at regular federal income tax rates.
- Long-term capital gains: Held more than one year and taxed at lower federal rates.
South Carolina uses this distinction only to determine eligibility for the 44% state deduction on net long-term gains.
Federal Capital Gains Tax (2025)
Short-Term Capital Gains
Taxed under federal ordinary income tax brackets:
| Taxable Income (Single) | Taxable Income (Married Joint) | Rate |
|---|---|---|
| $0–$11,925 | $0–$23,850 | 10% |
| $11,925–$48,475 | $23,850–$96,950 | 12% |
| $48,475–$103,350 | $96,950–$206,700 | 22% |
| $103,350–$197,300 | $206,700–$394,600 | 24% |
| $197,300–$250,525 | $394,600–$501,050 | 32% |
| $250,525–$626,350 | $501,050–$751,600 | 35% |
| $626,350+ | $751,600+ | 37% |
Long-Term Capital Gains
| Taxable Income (Single) | Taxable Income (Married Joint) | Rate |
|---|---|---|
| $0–$48,350 | $0–$96,700 | 0% |
| $48,350–$533,400 | $96,700–$600,050 | 15% |
| $533,400+ | $600,050+ | 20% |
Additional federal rules:
- Collectibles: up to 28%
- Real estate depreciation recapture: 25%
- NIIT (3.8%) applies to AGI above
- $200,000 (single)
- $250,000 (married joint)
South Carolina Capital Gains Tax in 2025
South Carolina taxes capital gains as ordinary income but offers a significant long-term capital gains deduction.
South Carolina Income Tax Rates (2025)
South Carolina has simplified its income tax system, with a top marginal rate of:
- 6.3%
Most high-income earners will fall into this bracket.
44% Net Capital Gains Deduction
South Carolina allows taxpayers to deduct 44% of net long-term capital gains.
This applies to:
- Publicly traded stock
- Real estate
- Business asset sales
- Many other long-term capital assets
Effective State Capital Gains Tax Rate
With the deduction:
- Taxable portion = 56% of long-term capital gains
- Effective rate for long-term gains =
6.3% × 56% = 3.528%
This makes South Carolina one of the more tax-efficient states for long-term investing.
Short-Term Capital Gains
Short-term gains are not eligible for the 44% deduction and are taxed at the full 6.3%.
Case Study: South Carolina Capital Gains Example
Scenario:
Marcus, a South Carolina resident, purchases 6,000 shares of stock at $45 in 2020 and sells them in 2025 for $95.
Total gain:
6,000 × $50 = $300,000
Federal Taxes
Marcus falls into the 15% federal long-term capital gains bracket:
- Federal long-term tax:
$300,000 × 15% = $45,000
NIIT applies to $50,000 of the gain:
- NIIT:
$50,000 × 3.8% = $1,900
Total federal tax: $46,900
South Carolina State Taxes
Since this is a long-term gain:
- Taxable portion:
$300,000 × 56% = $168,000
State tax:
$168,000 × 6.3% = $10,584
Total Tax Liability
- Federal: $46,900
- South Carolina: $10,584
- Total: $57,484
South Carolina’s 44% deduction reduces what would have been a $18,900 tax bill (at 6.3%) to $10,584.
Strategies to Reduce Capital Gains Taxes in South Carolina
1. Maximize the 44% Long-Term Deduction
Ensure assets meet the long-term holding requirement before selling.
2. Harvest Capital Losses
Offset gains with realized losses to reduce both state and federal taxes.
3. Use Tax-Efficient Charitable Strategies
CRTs and donor-advised funds help avoid or defer federal capital gains.
4. Consider Opportunity Zone Funds
Federal law may allow deferral or exclusion of certain capital gains.
5. Use Installment Sales for Large Transactions
Spreading the gain over multiple years can reduce federal brackets and NIIT exposure.
6. Coordinate Timing of Major Sales
Selling in lower-income years can reduce federal long-term rates and NIIT impact.
South Carolina’s combination of moderate tax rates and its 44% long-term capital gains deduction gives investors flexibility and efficiency. Because tax savings depend on income level, holding periods, asset type, and timing, consider consulting a qualified tax professional or financial advisor to determine the best strategy for your specific financial situation.
