What is the north carolina income tax calculator?
In short
North Carolina taxes all taxable income at a flat 4.25% income tax (2025) — a single flat rate rather than progressive brackets, so a higher salary doesn't push you into a higher state rate. On a $75,000 salary, a single filer keeps about $58,942 after $7,670 federal, $2,651 North Carolina state tax and $5,738 FICA — a 21.4% effective rate.
This North Carolina income tax calculator estimates your total tax — federal brackets + FICA (7.65%) + North Carolina's a flat 4.5% income tax. North Carolina switched from graduated brackets to a single flat rate in 2014 and has cut that rate nearly every year since.
How to use this calculator
- 1Enter your annual gross income.
- 2Choose your filing status (single, married, or head of household).
- 3North Carolina is pre-selected — switch states to compare.
- 4Enter pre-tax deductions (401k, HSA) and any itemized deductions.
- 5Read your federal tax, state tax, FICA, total, and effective rate.
The formula
- AGI
- — Gross income minus pre-tax deductions
- taxable income
- — AGI minus the standard or itemized deduction
- federal tax
- — Federal income tax from progressive brackets
- NC tax
- — North Carolina — a flat 4.25% income tax (2025)
- FICA
- — Social Security 6.2% + Medicare 1.45%
Worked example
The scenario
Single filer earning $75,000 in North Carolina, standard deduction.
The result
Federal ~$7,670, North Carolina state ~$2,651 (4.25% flat), FICA ~$5,738 → total ~$16,058, take-home $58,942 (21.4% effective).
Common use cases
- Estimating your total tax bill before filing in North Carolina
- Comparing North Carolina's flat 4.25% rate against progressive-bracket states
- Seeing how pre-tax 401(k)/HSA contributions lower your tax
- nC computes state taxable income from federal adjusted gross income (AGI), then applies its own standard deduction
Limitations & assumptions
- Local/city income taxes aren't included; North Carolina applies its 4.25% rate statewide.
- Rates change: NC has cut its flat rate almost every year: 4.99% (2022) → 4.5% (2024) → 4.25% (2025) → 3.99% (2026), with revenue-triggered cuts to 3.49% (2027) and 2.99% (2028) if targets are met.
- Federal calculation uses current brackets and the standard deduction unless you itemize.
- This is an estimate, not tax advice — verify against your actual return.
Frequently asked questions
What is the North Carolina state income tax rate?
How much is $75,000 taxed in North Carolina?
Does North Carolina have a standard deduction?
How much is $100,000 taxed in North Carolina?
Is North Carolina's income tax going down?
Disclaimer: KalkWise calculators are provided for general informational and educational purposes only and do not constitute financial, investment, tax, or legal advice. Results are estimates based on the figures you enter and the assumptions described above. Actual outcomes will vary. Consult a qualified professional before making financial decisions.