North Carolina tax guide

North Carolina taxes for self-employed workers in 2026

North Carolina's rate falls to 3.99% for 2026. Here's who has to make estimated payments, when they're due, and how to skip the last one.

Published by Cadus Labs LLC · Last updated November 9, 2026 · How we write these guides

Based on North Carolina Department of Revenue estimated tax guidance and its 2026 tax estimator worksheet.

North Carolina estimated tax payments for 2026

You have to pay estimated tax if the tax due on your return, after North Carolina withholding and credits, is $1,000 or more. The state's 2026 estimator multiplies North Carolina taxable income by 3.99%.

The form is Form NC-40, and you can generally pay online instead of mailing it.

2026 North Carolina estimated tax payment dates for calendar-year filers
Payment dueShare of the year's required payment
April 15, 202625%
June 15, 202625%
September 15, 202625%
January 15, 202725%

If you file your return by January 31, 2027 and pay your entire balance, you don't have to make the January 15 payment.

A quick estimate

The North Carolina Department of Revenue publishes a 2026 individual income tax estimator worksheet. It's a useful way to check your own number before you make your first payment.

Your federal tax comes first

Wherever you live, self-employed income is subject to federal income tax and self-employment tax. A single filer with $60,000 of net profit and no other income owes about $12,037 in federal tax for 2026, or 20% of profit, before any state or local tax.

Federal estimated payments are due April 15, June 15, and September 15, 2026, and January 15, 2027. Use our 1099 tax calculator to run your own numbers.

Recordkeeping checklist

Set aside for federal and state tax from every payment you receive.
Make federal and state estimated payments if you expect to owe enough.
Keep receipts and a mileage log for everything you deduct.
Run North Carolina's 2026 estimator worksheet.

Free tools for this

Calculator

1099 and Self-Employment Tax Calculator

Enter your 1099 income and business expenses to estimate self-employment tax, federal income tax, and what to set aside each quarter. No sign-up, and nothing you type is saved.

Calculator

Quarterly Tax Set-Aside Calculator

Turn expected profit into a practical tax savings target, then use Cadus to keep income, expenses, deductions, receipts, and reports organized.

Template

Quarterly Tax Savings Worksheet

Use this worksheet to turn expected monthly profit into a practical tax savings target before estimated tax due dates arrive.

Template

Business Expense Log Template

Copy this table to start organizing business purchases, receipt proof, categories, and business purpose before moving records into Cadus.

Official sources

NCDOR: estimated income taxNCDOR: 2026 estimator worksheet

Related guides

Self-employment tax guide

Self-Employment Tax

The self-employment tax rate is 15.3%. See who pays, how the 2026 wage base works, the deduction for half the tax, and a worked example.

Estimated tax guide

Quarterly Estimated Taxes

2026 estimated tax due dates, who has to pay, how to avoid the penalty, and a worked example for a self-employed worker earning $60,000.

Schedule C education

Schedule C Expense Categories

Every Schedule C expense line in plain English: what goes on each one, what doesn't, and the records to keep for self-employed workers.

North Carolina Taxes FAQ

What is North Carolina's income tax rate for 2026?

The state's 2026 estimator worksheet uses 3.99%.

When do I have to pay North Carolina estimated tax?

If the tax due on your return, after North Carolina withholding and credits, is $1,000 or more.

Cadus educational content is not tax, legal, or accounting advice. Tax rules can change, and individual facts matter. Review official guidance or speak with a qualified tax professional before filing.