North Carolina Business Tax Deadlines (2026)
Next: May 15 — Form 990 due for nonprofits
Next Deadline: May 15 — Form 990 due for nonprofits
Federal Tax Deadlines (2026)
| Form | Who Files | Due Date | Extension Deadline |
|---|---|---|---|
| Form 1040 (Schedule C) | Sole proprietors | April 15 | October 15 |
| Form 1065 | Partnerships, Multi-member LLCs | March 15 | September 15 |
| Form 1120-S | S-Corporations | March 15 | September 15 |
| Form 1120 | C-Corporations | April 15 | October 15 |
| Form 990 | Nonprofits | May 15 | November 15 |
| Estimated Taxes (Q1-Q4) | All | Apr 15, Jun 15, Sep 15, Jan 15 2027 | — |
North Carolina State Tax Deadlines (2026)
| Tax Type | Who Files | Due Date | Extension Deadline |
|---|---|---|---|
| Individual Income Tax (D-400) | Individuals, sole proprietors | April 15 | October 15 |
| Estimated Income Tax (Q1-Q4) | Individuals owing $1,000+ | Apr 15, Jun 15, Sep 15, Jan 15 2027 | — |
| Corporate Income Tax (CD-405) | C-Corporations | April 15 (calendar year) | October 15 |
| Franchise Tax (CD-405) | Corporations | April 15 (filed with income tax) | October 15 |
| S-Corp Return (CD-401S) | S-Corporations | March 15 | September 15 |
| Partnership Return (D-403) | Partnerships | April 15 | October 15 |
| Sales & Use Tax | Businesses with taxable sales | Monthly (20th) or quarterly | — |
| Payroll — Withholding Tax | Employers | Monthly or quarterly | — |
| Annual Report | Corporations and LLCs | April 15 | — |
Quarterly Estimated Tax Deadlines in North Carolina
North Carolina follows the federal estimated tax schedule:
| Quarter | Due Date |
|---|---|
| Q1 | April 15 |
| Q2 | June 15 |
| Q3 | September 15 |
| Q4 | January 15, 2027 |
Estimated payments are required if you expect to owe $1,000 or more in NC income tax after withholding and credits.
North Carolina-Specific Tax Requirements
North Carolina imposes a flat individual income tax rate of 4.5% for 2026 (the rate has been gradually decreasing from 5.25% in 2022 under HB 334, with plans to reach 3.99% by 2027). This flat rate applies to all taxable income, including business income from sole proprietorships and pass-through entities. The simplicity of the flat rate makes NC relatively straightforward for business owners.
The Corporate Income Tax rate is 2.5% for 2026, applied to net income apportioned to North Carolina. In addition, all corporations doing business in NC must pay a Franchise Tax — the greater of $200 or $1.50 per $1,000 of the largest of three bases: net worth, 55% of appraised value of NC property, or actual investment in NC tangible property. The franchise tax is filed together with the corporate income tax return on Form CD-405.
North Carolina's Sales and Use Tax has a state rate of 4.75%, with local additions of 2%–2.75%, bringing combined rates to 6.75%–7.5% depending on the county. Monthly filers must remit by the 20th of the following month. Employers must withhold state income tax and file returns on a schedule determined by the amount withheld. All corporations and LLCs must also file an Annual Report with the NC Secretary of State by April 15 each year ($25 for LLCs, $25 for corporations).
What Happens If You Miss a North Carolina Tax Deadline?
North Carolina charges a 5% per month late filing penalty on the unpaid tax, with a minimum penalty of $5 and a maximum of 25%. A separate late payment penalty of 10% of the unpaid tax is assessed if the tax is not paid by the due date.
Interest accrues on unpaid taxes at a rate set semiannually by the NC Department of Revenue — typically the federal short-term rate plus 4%, approximately 8%–9% per year. A 25% negligence penalty may be added if the underpayment is due to negligence.
North Carolina grants an automatic 6-month extension if you file Form D-410 by April 15, but you must pay at least 90% of the tax due with the extension request. Franchise tax and corporate income tax extensions follow the same rules using Form CD-419.
North Carolina Department of Revenue
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