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 | $4,244 |
| FICA | $7,650 | $7,650 |
| Total tax | $24,301 | $25,064 |
| Take-home | $75,699 | $74,936 |
| Effective rate | 24.30% | 25.06% |
| Annual Difference | $763 less | $763 more |
The $763 difference is primarily because South Carolina has a progressive income tax with rates up to 6.0%, while North Carolina has a flat 4.3% income tax. At your income level, South Carolina's marginal rate is 5.2% vs North Carolina's 4.0%.
Why the difference
You'd pay $763/year ($64/month) more 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%.
Effective rate at your income
At $100,000, North Carolina's effective state rate is 3.5% vs 4.2% in South Carolina — a 0.8 percentage point gap.
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
24.30% effective rate
South Carolina Total Tax
25.06% effective rate
Annual savings
by living in North 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 0.49%—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 $680 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 ~0.66%; no special homestead assessment ratio | Effective rate ~0.49%; owner-occupied homes assessed at just 4% of market value |
| Sales Tax | Base rate 4.75%, combined rates up to 8.25% with local taxes | Base rate 6%, plus local option taxes; groceries taxed at reduced rate |
| Retirement Income | Social Security exempt; Bailey exclusion for qualifying state, local and federal government retirees (Schedule S line 20); other retirement income fully taxed | Social Security fully exempt; retirement income deduction of $3,000, rising to $10,000 from age 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 (single filer). In SC, the bill is about $5,286 under the 2026 H.4216 structure, which starts from federal AGI and phases South Carolina's own deduction out entirely by $95,000 of income. However, if you buy a $350,000 home in Fort Mill (SC) versus Ballantyne (NC), you save about $700-$1,000 in property taxes, closing most of that gap. NC is still cheaper for most W-2 earners.
Retirees with $80K+ in pension and IRA income
A single retiree drawing $80,000 from a pension and IRA pays about $2,683 in NC income tax. In SC, a retiree aged 65 or older takes the $10,000 retirement deduction, which brings that to $70,000 and the partly phased-out South Carolina Income Adjusted Deduction takes off about $4,100 more, yielding about $2,467 in tax under the 2026 structure, before the separate age-65 deduction in S.C. Code 12-6-1170(B), which lowers it further. 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, and North Carolina now deducts it in full too for a retiree who served at least 20 years or was medically retired (Form D-400 Schedule S), so a career retiree pays neither state on the pension. The difference falls on a shorter-service, non-medical retiree: on $40,000 of military pension, North Carolina charges about $1,087 a year (single filer, 2026) and South Carolina nothing.
Bottom line: At $150,000 income (single filer), North Carolina's 3.99% flat tax (2026) yields about $5,476 versus South Carolina's roughly $6,849 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 | $16,065 | +$173 |
| $100,000 | $24,301 | $25,064 | +$763 |
| $150,000 | $41,685 | $43,058 | +$1,373 |
| $200,000 | $58,544 | $60,527 | +$1,983 |
Based on single filer, standard deduction, 2026 tax year. Includes federal income tax, state income tax, and FICA.
Why the difference
You'd pay $763/year ($64/month) more 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%.
Effective rate at your income
At $100,000, North Carolina's effective state rate is 3.5% vs 4.2% in South Carolina — a 0.8 percentage point gap.
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, North Carolina has a lower tax burden. At $100K income, you'd save $763 annually in North Carolina compared to South Carolina. However, total cost of living also depends on property taxes, sales taxes, and housing costs.
How much would I save moving from South Carolina to North Carolina?
A single filer earning $100,000 would save approximately $763 per year in total taxes by living in North Carolina instead of South Carolina. At $150,000 income, the savings change to $1,373 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%.