North Carolina Income Tax Calculator 2026

North Carolina Income Tax: 4.5% Flat Rate

North Carolina uses a flat income tax rate of 4.5%, meaning all taxable income is taxed at the same rate regardless of how much you earn. North Carolina has been steadily reducing its flat rate, down from 5.25% in 2022.

On top of the 4.5% state tax, North Carolina residents also pay federal income tax ranging from 10% to 37%. This calculator combines both federal and North Carolina state tax to show your total liability, effective rate, and take-home pay.

How North Carolina's Flat Tax Compares

A flat tax simplifies filing — you pay 4.5% on all taxable income without navigating multiple brackets. Compared to the national median top state rate of around 5.5%, North Carolina's 4.5% rate is below average. For a single filer earning $100,000, the North Carolina state tax would be approximately $4,500.

States with flat taxes tend to have simpler returns and more predictable tax bills. The trade-off is that lower-income residents pay the same percentage as higher earners, unlike graduated systems where rates increase with income.

Reducing Your North Carolina Tax Bill

While you cannot change the flat rate, you can reduce your taxable income. Contributions to traditional 401(k) and IRA accounts reduce both your federal and North Carolina state taxable income. The 2026 401(k) limit is $24,500 ($32,500 with catch-up for age 50+). HSA contributions are also pre-tax for both federal and state purposes in most states.