How to Use This Calculator
Enter your income, filing status, and any deductions. The calculator computes your North Carolina state income tax alongside your federal tax, showing exactly how much goes to each and what you take home.
The most useful thing to try? See how North Carolina's flat 4.25% rate affects different income levels, then test how deductions and retirement contributions change your bottom line.
Here's what each field means:
Annual Income is your total earnings before any taxes. Include wages, freelance income, investment income, and any other sources.
Filing Status determines which deductions and exemptions apply. North Carolina uses filing statuses similar to the federal system.
North Carolina Income Tax: What You Need to Know
North Carolina uses a flat income tax of 4.25% on all taxable income. Unlike states with progressive brackets, everyone pays the same percentage regardless of how much they earn. A teacher making $45,000 and a CEO making $500,000 both pay 4.25%.
North Carolina has been on a steady path of tax reduction. The flat rate dropped from 5.25% in 2022 to 4.25% in 2025, with plans to reach 2.49% by 2030. North Carolina switched from a progressive system to a flat tax in 2014 and has been reducing the rate ever since. The state has its own standard deduction amounts and does not allow itemized deductions. Social Security is fully exempt from state tax. North Carolina also does not tax military retirement pay.
A Real Example
Let's say you're a single filer earning $70,000 in North Carolina. After applying the standard deduction of $12,750, your approximate North Carolina state income tax would be around $2,431, for an effective state tax rate of about 3.5%.
That's just the state portion. Federal income tax and FICA taxes are additional.
Deductions and Exemptions
Standard Deduction: $12,750 for single filers and $25,500 for married couples filing jointly.
North Carolina standard deduction ($12,750 single / $25,500 MFJ). No itemized deductions allowed. The state offers a $2,500 child deduction and does not tax Social Security or military retirement income.
Local Taxes
No local income taxes in North Carolina.
Recent Changes
Rate dropped to 4.25% in 2025 with further reductions scheduled: 3.99% (2026), 3.49% (2027), 2.99% (2028), 2.49% (2029-2030). This is one of the most aggressive state tax reduction plans in the country.
How to Use This Calculator Strategically
Model a raise or job change. With a flat tax, the math is simpler — every additional dollar is taxed at 4.25%. But deductions and credits can still shift your effective rate.
Compare filing statuses. Even with a flat rate, different filing statuses unlock different deduction amounts that can affect your bottom line.
Plan retirement contributions. See how 401(k) or IRA contributions reduce your North Carolina taxable income and lower your state tax bill.
Evaluate a move. Compare North Carolina's flat 4.25% rate to other states. Depending on your income level, a flat tax state might save you money — or cost you more — compared to a progressive system.
References
- North Carolina Department of Revenue. (2025). Individual Income Tax.
This calculator is for educational purposes only and does not constitute tax or financial advice. Tax rates and rules change regularly. Consult a qualified tax professional for guidance specific to your situation.