North Carolina Quarterly Tax Calculator
Calculate your estimated quarterly tax payments for federal and North Carolina state taxes. Designed for self-employed individuals, freelancers, and independent contractors.
NC State Tax: Flat 4.5%
Quarterly Payment Amount
$6,429
Per quarter (4 remaining)
Annual Tax Breakdown
2026 Payment Schedule
Jan 1 - Mar 31
Due: April 15, 2026
$6,429
Apr 1 - May 31
Due: June 15, 2026
$6,429
Jun 1 - Aug 31
Due: September 15, 2026
$6,429
Sep 1 - Dec 31
Due: January 15, 2027
$6,429
Don't miss your quarterly payments!
The IRS may charge penalties and interest if you underpay or pay late. Consider setting up automatic payments or calendar reminders.
North Carolina Quarterly Tax Highlights
North Carolina has a flat 4.5% income tax rate
Rate has been reduced over several years
Use Form NC-40 for quarterly payments
North Carolina Quarterly Tax FAQ
What is North Carolina's income tax rate?
North Carolina has a flat 4.5% income tax rate. The rate has been gradually reduced from previous higher levels through tax reform legislation.
Official References
This calculator uses current federal and North Carolina tax rates and schedules:
- IRS Estimated Tax Guidelines
Federal quarterly tax requirements and Form 1040-ES
- NC DOR
Official North Carolina tax authority
- IRS Self-Employment Tax
Social Security and Medicare tax information
This calculator provides estimates based on 2026 tax rates. Your actual tax liability may vary based on deductions, credits, and other factors. Consult a tax professional for personalized advice.