Business Tax Deadlines

State filing information

North Carolina

Business tax filing in North Carolina: state returns, sales tax, other business taxes, and the federal dates that apply everywhere.

checked 2026-09-01Verified against North Carolina Department of Revenue (NCDOR). 14 sources.

Corporate income tax return

April 15
Combined corporate franchise and income tax return (Form CD-405) is due on the 15th day of the 4th month following the close of the income year

Partnership / S corporation returns

April 15
Partnerships April 15; Same for S corporations

Sales tax return

20th of the following month
sales and use tax · NCDOR assigns frequency based on the taxpayer's consistent total tax liability: quarterly if consistently less than $100 per month; monthly if...

Other business taxes

1 tax
Franchise tax (filed on Schedule A of CD-405 / CD-401S)

North Carolina Department of Revenue

Other business taxes

TaxWho owes itDue
Franchise tax (filed on Schedule A of CD-405 / CD-401S)All active and inactive domestic corporations and all foreign corporations with a Certificate of Authority, including S corporations. 2025 C corporations: $1.50 per...With the annual franchise and income tax return on the 15th day of the 4th month after the income year...

Rules in full

Corporate income tax

Combined corporate franchise and income tax return (Form CD-405) is due on the 15th day of the 4th month following the close of the income year. Corporate income tax rate is 2.25% of NC net income for tax year 2025 (rate is being phased down under prior legislation).

Extension. Form CD-419 filed by the original due date

Partnerships and S corporations

Taxed Pass-Through Entity election available for tax years beginning on or after 2022-01-01. The election is made annually by filling in the circle on the timely filed CD-401S or D-403 by the return due date including extensions; an election on a late-filed return is invalid and cannot be made or revoked after the original return is filed. Taxed S corporations/partnerships pay tax at the individual rate (4.25% for 2025). S corporations also owe NC franchise tax ($200 on the first $1,000,000 of tax base plus $1.50 per $1,000 above that; minimum $200) with the CD-401S.

Sales and use tax

Due date. Monthly and monthly-with-prepayment filers: return and payment due on or before the 20th day of the month following the calendar month. Quarterly filers: due on or before the last day of the month following the calendar quarter (last day of January, April, July, October).

Filing frequency. NCDOR assigns frequency based on the taxpayer's consistent total tax liability: quarterly if consistently less than $100 per month; monthly if consistently at least $100 but less than $20,000 per month; monthly with prepayment if consistently at least $20,000 per month.

Thresholds. Quarterly: < $100/month liability. Monthly: $100 to < $20,000/month. Monthly with prepayment: >= $20,000/month.

Prepayments. Monthly-with-prepayment filers (>= $20,000/month) must, with each monthly return due the 20th, also prepay the next month's liability equal to at least 65% of (a) the current month's tax, (b) the tax for the same month of the prior year, or (c) the average monthly tax for the preceding calendar year; two separate online payment transactions are required and the return must be filed online.

Notes

NC S corporation and partnership returns are due April 15 (4th month), not March 15. Franchise tax computation changed for 2025: the C corporation rate on the first $1,000,000 of net worth is capped at $500 and S corporations pay $200 on the first $1,000,000. Corporate income tax rate is 2.25% for 2025.

What we could not confirm. Extension length conflicts between official pages: the 2025 CD-405 and CD-401S instructions say seven months, the CD-419 information page says six months; treat 7 months as current for 2025 returns but verify. The D-403A instruction pages read did not state the due date explicitly; the 15th-day-of-4th-month rule for partnerships comes from the NCDOR PTE Important Notice. LLC-specific fees: none found in the fetched material (NC does not have a separate LLC tax at NCDOR, but this was not affirmatively verified). Secondary corroboration for the corporate items is from a second official NCDOR page rather than a third-party source (Wolters Kluwer pages returned 403).

Federal dates that apply in North Carolina

  1. SEP15Tue
    Individuals & Sole Proprietors
    Q3 2026 estimated tax payment (Form 1040-ES)
  2. SEP15Tue
    Partnerships
    Form 1065 extended return (Form 7004), tax year 2025
  3. SEP15Tue
    S-Corporations
    Form 1120-S extended return (Form 7004), tax year 2025
  4. SEP15Tue
    C-Corporations
    Q3 2026 corporate estimated tax (Form 1120-W)
  5. OCT15Thu
    Individuals & Sole Proprietors
    Form 1040 extended return (Form 4868), tax year 2025
  6. OCT15Thu
    C-Corporations
    Form 1120 extended return (Form 7004), tax year 2025

All 2026 federal deadlines

Sources

  1. https://www.ncdor.gov/taxes-forms/corporate-income-franchise-tax/filing-requirements official
  2. https://www.ncdor.gov/ official
  3. https://www.ncdor.gov/tax-forms/2025-cd-405-c-corporation-tax-return-instructions/open official
  4. https://www.ncdor.gov/cd-419-information official
  5. https://www.ncdor.gov/taxes-forms/information-tax-professionals/tax-bulletins-directives-and-other-important-notices/important-notices-and-frequently-asked-questions-personal-taxes/important-notice-regarding-north-carolinas-recently-enacted-pass-through-entity-tax official
  6. https://www.ncdor.gov/tax-forms/2025-cd-401s-s-corporation-tax-return-instructions/open official
  7. https://www.ncdor.gov/tax-forms/2025-d-403a-partnership-tax-return-instructions/open official
  8. https://www.ncdor.gov/taxes-forms/individual-income-tax/personal-taxes-division-directives/directive-ta-23-1 official
  9. https://www.ncdor.gov/taxes-forms/sales-and-use-tax/sales-and-use-tax-filing-requirements-payment-options/filing-frequency-and-due-dates official
  10. https://www.ncdor.gov/taxes-forms/sales-and-use-tax/sales-and-use-tax-frequently-asked-questions official
  11. https://www.ncdor.gov/taxes-forms/sales-and-use-tax/filing-requirements-payment-options/filing-frequency-and-due-dates/monthly-filing-prepayment official
  12. https://www.ncdor.gov/taxes-forms/corporate-income-franchise-tax/corporate-annual-reports-no-longer-filed-ncdor-2018 official
  13. https://www.avalara.com/taxrates/en/state-rates/north-carolina/north-carolina-sales-tax-guide.html
  14. https://www.taxjar.com/sales-tax/north-carolina

Checked 2026-09-01; researcher confidence 0.85. Corrections with a link to the state's own page: contact@businesstaxdeadlines.com.