North Carolina income tax goes up to 3.99% at the top bracket. Calculate your combined federal + state effective tax rate for 2026. Formula shown, sources cited — no account required.
North Carolina simplified its tax code by moving to a flat 3.99% income tax rate, which applies to all earned income above the standard deduction. That rate is notably lower than neighboring states and makes take-home pay predictable regardless of income level. The median earner at $73,958 owes roughly $2,950 to the state in income tax before credits and deductions, which is one of the lower state burdens in the Southeast. At the federal level, that same earner likely falls in the 22% marginal bracket, so combined effective rates often run in the 18–23% range depending on filing status. North Carolina does not tax Social Security benefits, which creates a meaningful advantage for retirees comparing states. There is no special deduction for retirement account contributions beyond the standard federal treatment, but the low flat rate still makes the state attractive for savers. Run the tax bracket calculator to model your combined state and federal liability and identify where planning opportunities exist.
North Carolina Tax Brackets Explained (2026)
North Carolina has a state income tax with a top marginal rate of 3.99%. On top of federal rates (10%–37%), residents can face a combined marginal rate exceeding 35% at higher income levels. However, your effective rate is always lower than the marginal rate because only income above each threshold is taxed at that bracket's rate.
The median household in North Carolina earns $73,958/year. At that income (single filer), the federal effective rate is approximately 12–14%, bringing total income tax (federal + state) to roughly 14–17%.
How Marginal vs. Effective Rate Works
The marginal rate is the rate on your last dollar of income — it does not apply to all income. The effective rate is your total tax divided by total income. For example, someone earning $100,000 in North Carolina has a 22% federal marginal rate but an effective federal rate of roughly 15%, because the first $44,725 (2024) is taxed at 10% and 12%, not 22%.