1099 Tax Calculator North Carolina 2026
North Carolina has a flat 4.25% individual income tax rate (reduced from 4.5% effective January 1, 2025, with further reduction to 3.99% scheduled for 2026). Self-employed workers in NC owe state tax on top of federal income tax (10-37%) and self-employment tax (15.3% on net earnings). Use the calculator below to estimate your 2026 total tax liability and quarterly estimated payment amounts.
Net income after business expenses
Enter your income to see your tax breakdown
How North Carolina taxes self-employment income
North Carolina has a flat 4.25% state income tax.
North Carolina has a flat 4.25% individual income tax rate (reduced from 4.5% effective January 1, 2025). The rate is scheduled to decline to 3.99% in 2026.
Federal tax also applies
Regardless of state, all 1099 contractors and self-employed workers in North Carolina owe federal income tax and self-employment tax. SE tax is 15.3% on net earnings (12.4% Social Security up to $184,500 in 2026, plus 2.9% Medicare with no cap). Federal income tax follows the standard bracket structure (10-37%).
The calculator above includes federal, SE, and North Carolina state tax in one estimate, and breaks down quarterly estimated payments due April 15, June 15, September 15, 2026, and January 15, 2027.