1099 Quarterly Taxes in North Carolina (2026)
If you're self-employed in North Carolina — freelancer, contractor, gig worker, or single-member LLC — you owe quarterly estimated taxes to two agencies: the IRS (federal) and North Carolina Department of Revenue (state). North Carolina uses a flat 3.99% income tax, which makes estimating your state burden simpler than progressive states. But you still need to send the money on time to avoid underpayment penalties.
North Carolina state income tax (2026)
North Carolina uses a flat income tax rate of 3.99% on all taxable income above the standard deduction. There are no brackets — every dollar of taxable income is taxed at the same rate.
How to pay North Carolina estimated taxes
Federal estimated tax due dates (April 15, June 15, September 15, 2026, and January 15, 2027) apply to your North Carolina state estimated payments as well — most states piggyback on the federal schedule. Pay North Carolina taxes through the North Carolina Department of Revenue's online portal: www.ncdor.gov. You can also mail Form NC-40 with a check.
North Carolina-specific quirk freelancers miss
North Carolina completed its multi-year glide path in 2026 — the rate dropped from 4.75% in 2023 to 4.50% in 2024, 4.25% in 2025, and 3.99% in 2026 (the floor under current statute).
Common deductions for North Carolina freelancers
- North Carolina allows the same business expenses (home office, mileage, software, etc.) as federal.
- Half of SE tax is deductible federally; check North Carolina's rules for state conformity.
- NC conforms to federal QBI deduction.
- SEP-IRA / Solo 401(k) contributions reduce both federal and North Carolina taxable income.
- Self-employed health insurance premiums are deductible federally.