North Carolina vs South Carolina Taxes
Compare the total tax burden between North Carolina (3.99% flat) and South Carolina (1.99% – 5.21%). Enter your income to see which state saves you more.
| Tax Component | North Carolina | South Carolina |
|---|---|---|
| Federal Tax | $13,170 | $13,170 |
| State Tax | $3,481 | $3,405 |
| FICA | $7,650 | $7,650 |
| Total Tax | $24,301 | $24,225 |
| Take-Home | $75,699 | $75,775 |
| Effective Rate | 24.30% | 24.23% |
| Annual Difference | $76 more | $76 less |
The $76 difference is primarily because North Carolina has a flat 4.3% income tax, while South Carolina has a progressive income tax with rates up to 6.0%. At your income level, North Carolina's marginal rate is 4.0% vs South Carolina's 5.2%.
Why the difference
You'd save $76/year ($6/month) in South Carolina vs North Carolina.
Tax structure
North Carolina has a flat 4.3% state income tax, while South Carolina uses progressive brackets up to 6.0%.
Tip: With a flat tax rate, your effective state rate is predictable and consistent. Focus tax reduction on pre-tax contributions (401k, HSA) and any state-specific deductions or credits available.
Tip: In a progressive-bracket state, pre-tax 401(k) and HSA contributions reduce your state tax bill along with federal tax. If you are near a bracket boundary, an additional contribution can drop you into a lower state bracket.
North Carolina Total Tax
$24,30124.30% effective rate
South Carolina Total Tax
$24,22524.23% effective rate
Annual Savings
$76by living in South Carolina
North Carolina vs South Carolina: The I-77 tax divide reshaping Charlotte's suburbs
North Carolina and South Carolina share a 334-mile border, and the Charlotte metro area straddles it—making this one of the most tax-sensitive commuter corridors in the country. North Carolina levies a 3.99% flat income tax in 2026 (down from 4.25% in 2025 and 5.25% a few years ago as part of a planned phase-down), while South Carolina restructured its tax for 2026 under H.4216: 1.99% on taxable income under $30,000 and an effective 5.21% above that (equivalent to a flat 5.21% minus a $966 credit), down from a 6.0% top graduated rate in 2025. On paper, NC looks cheaper for high earners, and it usually is.
But the comparison flips when you factor in property taxes. North Carolina's effective property tax rate averages about 0.66%, while South Carolina comes in at roughly 0.48%—and SC offers an exceptionally generous homestead assessment for owner-occupied homes, taxing them at just 4% of market value versus 6% for other property types. For a $400,000 home, that translates to roughly $720 less in annual property tax in SC on the headline rates alone, and more once the 4% assessment ratio is applied.
Migration between the two states has been substantial, with about 30,000 people moving each direction annually. South Carolina's lower property taxes and cost of living attract retirees, while North Carolina's Research Triangle and Charlotte financial district draw younger professionals. SC also exempts Social Security benefits from state income tax entirely, making it a strong retirement destination despite the higher marginal income tax rate.
Key Differences Beyond Income Tax
| Category | North Carolina | South Carolina |
|---|---|---|
| Property Tax | Effective rate ~0.70%; no special homestead assessment ratio | Effective rate ~0.53%; owner-occupied homes assessed at just 4% of market value |
| Sales Tax | Base rate 4.75%, combined rates up to 7.5% with local taxes | Base rate 6%, combined rates up to 9% in some areas; groceries taxed at reduced rate |
| Retirement Income | Social Security exempt; $2,000 deduction for government retirement income; other retirement income fully taxed | Social Security fully exempt; $10,000 retirement income deduction for those under 65; generous military retirement exclusion |
| Business Taxes | Corporate income tax 2.5% (decreasing); franchise tax based on capital stock or net worth | Corporate income tax 5%; no franchise tax for most businesses |
| Cost of Living | Charlotte and Raleigh metros moderately priced; overall index about 5% below national average | Greenville, Columbia, and Charleston notably affordable; overall index 8-12% below national average |
Who Benefits from Moving?
Charlotte-area commuters earning $120K+
A worker earning $120,000 pays about $4,279 in NC income tax. In SC, the bill is roughly $4,447 under the 2026 H.4216 structure. However, if you buy a $350,000 home in Fort Mill (SC) versus Ballantyne (NC), you save about $700-$1,000 in property taxes, narrowing the gap further. NC is still cheaper for most W-2 earners, though the gap has narrowed since SC's 2026 rate cut.
Retirees with $80K+ in pension and IRA income
A retiree drawing $80,000 from a pension and IRA pays about $2,683 in NC income tax. In SC, the $10,000 deduction drops taxable retirement income to $70,000, yielding roughly $2,680 in tax under the 2026 structure. Combined with SC's lower property taxes, retirees often save modestly by choosing SC.
Military families and veterans
South Carolina exempts all military retirement pay from state income tax, while NC taxes it as ordinary income (with a modest $4,000 deduction). A retired E-8 with $40,000 in military pension saves about $1,600 annually in SC—a meaningful difference on a fixed income.
Bottom line: At $150,000 income, North Carolina's 3.99% flat tax (2026) yields about $5,476 versus South Carolina's roughly $6,010 under its 2026 H.4216 structure—a narrower gap than in past years, and SC's lower property taxes and retirement exemptions can close or reverse it for homeowners and retirees.
Tax at Different Income Levels
| Income | North Carolina Total Tax | South Carolina Total Tax | Annual Savings |
|---|---|---|---|
| $75,000 | $15,891 | $15,510 | Save $381 |
| $100,000 | $24,301 | $24,225 | Save $76 |
| $150,000 | $41,685 | $42,219 | +$534 |
| $200,000 | $58,544 | $59,688 | +$1,144 |
Based on single filer, standard deduction, 2026 tax year. Includes federal income tax, state income tax, and FICA.
Why the difference
You'd save $76/year ($6/month) in South Carolina vs North Carolina.
Tax structure
North Carolina has a flat 4.3% state income tax, while South Carolina uses progressive brackets up to 6.0%.
Tip: With a flat tax rate, your effective state rate is predictable and consistent. Focus tax reduction on pre-tax contributions (401k, HSA) and any state-specific deductions or credits available.
Tip: In a progressive-bracket state, pre-tax 401(k) and HSA contributions reduce your state tax bill along with federal tax. If you are near a bracket boundary, an additional contribution can drop you into a lower state bracket.
Understanding Each State
North Carolina
This state uses a flat income tax rate, meaning the same percentage applies to all taxable income regardless of how much you earn. This simplifies tax planning but means there is no bracket benefit for lower earners. The effective rate is very close to the headline rate after deductions.
Tip: With a flat tax rate, your effective state rate is predictable and consistent. Focus tax reduction on pre-tax contributions (401k, HSA) and any state-specific deductions or credits available.
South Carolina
This state uses a progressive income tax system with multiple brackets, similar to the federal system. Only the income within each bracket is taxed at that rate, so your effective state rate is lower than the top bracket. Tax planning strategies include maximizing pre-tax retirement contributions to reduce state-taxable income.
Tip: In a progressive-bracket state, pre-tax 401(k) and HSA contributions reduce your state tax bill along with federal tax. If you are near a bracket boundary, an additional contribution can drop you into a lower state bracket.
Key Comparison Points
Income tax structure: North Carolina has a flat income tax (3.99% flat), while South Carolina has a progressive income tax (1.99% – 5.21%).
Beyond income tax: State tax comparisons should also consider property tax rates, sales tax, and cost of living. A state with no income tax may have higher property or sales taxes that offset the savings.
SALT deduction cap: Under OBBBA, the 2026 federal SALT cap is $40,400, phasing out above $505,000 MAGI toward a $10,000 floor. This limits the federal tax benefit of living in a high-tax state, so the gross state tax difference remains close to the net difference for most earners — especially high earners inside the phaseout.
Frequently asked questions
Is it cheaper to live in North Carolina or South Carolina?
Based on income tax alone, South Carolina has a lower tax burden. At $100K income, you'd save $76 annually in South Carolina compared to North Carolina. However, total cost of living also depends on property taxes, sales taxes, and housing costs.
How much would I save moving from North Carolina to South Carolina?
A single filer earning $100,000 would save approximately $76 per year in total taxes by living in South Carolina instead of North Carolina. At $150,000 income, the savings change to $534 per year.
What is the income tax rate in North Carolina?
North Carolina has a flat income tax with rates of 3.99% flat.
What is the income tax rate in South Carolina?
South Carolina has a progressive income tax with rates of 1.99% – 5.21%.