North Carolina Business Tax Extension

North Carolina Business Tax Extension LLC / Partnership – S Corporation – C Corporation – Fiduciary

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North Carolina Quick Reference
LLC / Partnership • Business Tax Extension
State North Carolina (NC)
Entity Type LLC / Partnership
Extension ✓ Auto with Federal
Federal Form IRS Form 7004
State Form NC CD-419 / D-410P | North Carolina Extension Payment (payment only)
Original Deadline March 16, 2026
Extended Deadline September 15, 2026

North Carolina Business Tax Extension – LLC / Partnership

NC CD-419 / D-410P | North Carolina Extension Payment  •  LLC / Partnership
Original deadline: March 16, 2026 Extended to: September 15, 2026 Extension: 6 months automatic

North Carolina LLC & Partnership Tax Extension

North Carolina LLCs and partnerships with North Carolina source income file Form D-403 (Partnership Income Tax Return) with the North Carolina Department of Revenue. The return is due March 16, 2026, and a six-month extension to September 15, 2026 is available. North Carolina accepts the federal Form 7004 extension and does not require a separate state extension form–provided the full amount of North Carolina tax owed is paid by the original due date. A late payment will trigger the 10% failure-to-pay penalty even if the extension is valid.

Original Deadline March 16, 2026
Extended Deadline September 15, 2026
NC Tax Due March 16, 2026 – The extension moves the filing deadline only. North Carolina income tax owed by the LLC or partnership must be paid in full by March 16, 2026 to avoid the 10% failure-to-pay penalty and interest. There is no North Carolina payment extension separate from the filing extension.

Extending a North Carolina LLC or Partnership Return

File IRS Form 7004 before March 16, 2026 to activate the federal extension. North Carolina automatically follows the federal extension and grants additional time to September 15, 2026 to file Form D-403. Pay all North Carolina income tax owed by March 16, 2026 through the North Carolina Department of Revenue online payment portal or by mailing a check with Form D-410P to: NC Department of Revenue, P.O. Box 25000, Raleigh, NC 27640-0640. North Carolina LLCs with nonresident members should also confirm whether nonresident composite payment (Form NC-NPA) obligations apply.

North Carolina LLCs that have elected Pass-Through Entity (PTE) tax treatment may pay North Carolina income tax at the entity level. PTE estimated payments are due quarterly–confirm that all required estimated payments are current before the March 16, 2026 deadline to avoid underpayment interest.

NC LLC Extension Best Practices

  • File IRS Form 7004 before March 16, 2026 to extend the North Carolina Form D-403 return to September 15, 2026–no separate state extension form is needed.
  • Pay all North Carolina LLC income tax by March 16, 2026 through the NC online payment portal or by mail with Form D-410P to avoid the 10% failure-to-pay penalty.
  • Verify whether nonresident composite payment obligations exist for out-of-state members and remit those amounts by March 16, 2026.
  • File the completed Form D-403 with the North Carolina Department of Revenue by September 15, 2026.

Working with a Tax Professional

LLC / Partnership returns carry unique complexities – a licensed CPA or Enrolled Agent can navigate the details and ensure your North Carolina return is filed accurately and on time.

  1. Get matched with a verified U.S.-based CPA or Enrolled Agent
  2. Upload your business documents via secure drag-and-drop
  3. Review your return with transparent, upfront pricing
  4. Your TaxPro files the North Carolina return by September 15, 2026

Connect with a TaxPro →

How to Pay

North Carolina requires online payment for tax amounts of $750 or more. Submit electronically via the North Carolina Online Tax Extension Payment portal. For amounts under $750, complete NC CD-419 / D-410P | North Carolina Extension Payment and mail with your payment.

Online – Required $750+

North Carolina Online Payment Portal

Submit electronically through the North Carolina Online Tax Extension Payment system. Required for all payments $750 and above.

Mail – Under $750

NC CD-419 / D-410P | North Carolina Extension Payment by Check

Download NC CD-419 / D-410P | North Carolina Extension Payment and mail with your check or money order. Include your EIN and tax year on the check.

NC Department of Revenue
P.O. Box 25000
Raleigh, NC 27640-0640

Late Filing & Payment Penalties

Penalty TypeAmount
Failure to File5% of unpaid tax per month, up to 25%.
Failure to Pay10% of tax not paid by the original due date.

LLC / Partnership Quick Reference

State AbbreviationNC
Entity TypeLLC / Partnership
Extension StatusAutomatic with approved IRS Form 7004
Original Filing DeadlineMarch 16, 2026
Extended Filing DeadlineSeptember 15, 2026
Payment DueMarch 16, 2026 (100% of tax owed)
Payment FormNC CD-419 / D-410P | North Carolina Extension Payment
Online PaymentNorth Carolina Online Tax Extension Payment
State AgencyNorth Carolina Department of Revenue
Failure to File Penalty5% of unpaid tax per month, up to 25%.
Failure to Pay Penalty10% of tax not paid by the original due date.

North Carolina Business Tax Extension – S Corporation

NC CD-419 / D-410P | North Carolina Extension Payment  •  S Corporation
Original deadline: March 16, 2026 Extended to: September 15, 2026 Extension: 6 months automatic

North Carolina S Corporation Tax Extension

North Carolina S corporations file Form CD-401S (S Corporation Tax Return) with the North Carolina Department of Revenue. The CD-401S is due March 16, 2026, and a six-month extension to September 15, 2026 is available. North Carolina accepts the federal Form 7004 extension for S corporation returns–no separate state extension form is required–but the full amount of North Carolina S corporation income tax must be paid by March 16, 2026 to avoid the 10% failure-to-pay penalty. North Carolina S corporations are subject to a 2.5% income tax on income allocable to the state.

Original Deadline March 16, 2026
Extended Deadline September 15, 2026
NC Tax Due March 16, 2026 – North Carolina S corporations must pay all income tax owed by March 16, 2026. The filing extension to September 15, 2026 does not postpone the payment deadline, and unpaid tax accrues the 10% failure-to-pay penalty plus interest from the original due date.

How to Extend a North Carolina S Corporation Return

File IRS Form 7004 before March 16, 2026 to extend the North Carolina CD-401S return to September 15, 2026. Pay all North Carolina S corporation income tax owed by March 16, 2026 through the North Carolina Department of Revenue online portal or by mailing a payment with Form CD-419 to: NC Department of Revenue, P.O. Box 25000, Raleigh, NC 27640-0640. North Carolina S corporations that have North Carolina shareholders should also confirm whether those shareholders need to address the North Carolina PTE estimated payment obligations separately.

North Carolina's optional Pass-Through Entity (PTE) tax election allows S corporations to pay state income tax at the entity level. If the PTE election has been made for tax year 2025, include the PTE tax payment with the March 16, 2026 extension submission to keep the election in good standing and preserve the federal deduction benefit for shareholders.

NC S Corporation Extension Checklist

  • File IRS Form 7004 before March 16, 2026 to extend the North Carolina CD-401S S corporation return to September 15, 2026.
  • Pay all North Carolina S corporation income tax by March 16, 2026 through the NC online portal or by mail with Form CD-419 to avoid the 10% penalty.
  • Include any PTE tax election payment with the March 16, 2026 submission if the entity-level election has been made.
  • File the completed Form CD-401S with the North Carolina Department of Revenue by September 15, 2026.

Working with a Tax Professional

S Corporation returns carry unique complexities – a licensed CPA or Enrolled Agent can navigate the details and ensure your North Carolina return is filed accurately and on time.

  1. Get matched with a verified U.S.-based CPA or Enrolled Agent
  2. Upload your business documents via secure drag-and-drop
  3. Review your return with transparent, upfront pricing
  4. Your TaxPro files the North Carolina return by September 15, 2026

Connect with a TaxPro →

How to Pay

North Carolina requires online payment for tax amounts of $750 or more. Submit electronically via the North Carolina Online Tax Extension Payment portal. For amounts under $750, complete NC CD-419 / D-410P | North Carolina Extension Payment and mail with your payment.

Online – Required $750+

North Carolina Online Payment Portal

Submit electronically through the North Carolina Online Tax Extension Payment system. Required for all payments $750 and above.

Mail – Under $750

NC CD-419 / D-410P | North Carolina Extension Payment by Check

Download NC CD-419 / D-410P | North Carolina Extension Payment and mail with your check or money order. Include your EIN and tax year on the check.

NC Department of Revenue
P.O. Box 25000
Raleigh, NC 27640-0640

Late Filing & Payment Penalties

Penalty TypeAmount
Failure to File5% of unpaid tax per month, up to 25%.
Failure to Pay10% of tax not paid by the original due date.

S Corporation Quick Reference

State AbbreviationNC
Entity TypeS Corporation
Extension StatusAutomatic with approved IRS Form 7004
Original Filing DeadlineMarch 16, 2026
Extended Filing DeadlineSeptember 15, 2026
Payment DueMarch 16, 2026 (100% of tax owed)
Payment FormNC CD-419 / D-410P | North Carolina Extension Payment
Online PaymentNorth Carolina Online Tax Extension Payment
State AgencyNorth Carolina Department of Revenue
Failure to File Penalty5% of unpaid tax per month, up to 25%.
Failure to Pay Penalty10% of tax not paid by the original due date.

North Carolina Business Tax Extension – C Corporation

NC CD-419 / D-410P | North Carolina Extension Payment  •  C Corporation
Original deadline: April 15, 2026 Extended to: October 15, 2026 Extension: 6 months automatic

North Carolina C Corporation Tax Extension

North Carolina C corporations file Form CD-405 (C Corporation Tax Return) with the North Carolina Department of Revenue. The CD-405 is due April 15, 2026, and a six-month extension to October 15, 2026 is available. North Carolina accepts the federal Form 7004 extension for C corporation returns without requiring a separate state extension form. North Carolina's corporate income tax rate is 2.5%–currently the lowest flat corporate rate among states with a corporate income tax–with a scheduled phase-down to 0% by 2030. All North Carolina corporate tax must be paid in full by April 15, 2026 to avoid the 10% failure-to-pay penalty.

Original Deadline April 15, 2026
Extended Deadline October 15, 2026
NC Tax Due April 15, 2026 – North Carolina C corporations must pay their full income tax liability by April 15, 2026. The filing extension to October 15, 2026 does not extend the payment deadline. Unpaid tax accrues the 10% failure-to-pay penalty and interest from April 15, 2026.

Requesting a North Carolina C Corporation Extension

File IRS Form 7004 before April 15, 2026. North Carolina automatically extends the CD-405 filing deadline to October 15, 2026. Pay all North Carolina corporate income tax owed by April 15, 2026 through the North Carolina Department of Revenue online portal or by mailing a payment with Form CD-419 to: NC Department of Revenue, P.O. Box 25000, Raleigh, NC 27640-0640. C corporations apportioning income among multiple states should complete the North Carolina apportionment schedule before the payment deadline to accurately estimate the extension payment.

North Carolina uses a three-factor apportionment formula (sales, property, payroll) for corporations with income from multiple states, though single-sales-factor apportionment has been phased in for many industries. Multi-state C corporations should verify which apportionment formula applies before calculating the April 15, 2026 extension payment to avoid an underpayment.

NC C Corporation Extension Checklist

  • File IRS Form 7004 before April 15, 2026 to extend the North Carolina Form CD-405 return to October 15, 2026.
  • Pay all North Carolina corporate income tax by April 15, 2026 through the NC online portal or by mail with Form CD-419 to avoid the 10% penalty.
  • Apply North Carolina's applicable apportionment formula to estimate corporate income tax accurately before the April 15, 2026 payment deadline.
  • File the completed Form CD-405 with the North Carolina Department of Revenue by October 15, 2026.

Working with a Tax Professional

C Corporation returns carry unique complexities – a licensed CPA or Enrolled Agent can navigate the details and ensure your North Carolina return is filed accurately and on time.

  1. Get matched with a verified U.S.-based CPA or Enrolled Agent
  2. Upload your business documents via secure drag-and-drop
  3. Review your return with transparent, upfront pricing
  4. Your TaxPro files the North Carolina return by October 15, 2026

Connect with a TaxPro →

How to Pay

North Carolina requires online payment for tax amounts of $750 or more. Submit electronically via the North Carolina Online Tax Extension Payment portal. For amounts under $750, complete NC CD-419 / D-410P | North Carolina Extension Payment and mail with your payment.

Online – Required $750+

North Carolina Online Payment Portal

Submit electronically through the North Carolina Online Tax Extension Payment system. Required for all payments $750 and above.

Mail – Under $750

NC CD-419 / D-410P | North Carolina Extension Payment by Check

Download NC CD-419 / D-410P | North Carolina Extension Payment and mail with your check or money order. Include your EIN and tax year on the check.

NC Department of Revenue
P.O. Box 25000
Raleigh, NC 27640-0640

Late Filing & Payment Penalties

Penalty TypeAmount
Failure to File5% of unpaid tax per month, up to 25%.
Failure to Pay10% of tax not paid by the original due date.

C Corporation Quick Reference

State AbbreviationNC
Entity TypeC Corporation
Extension StatusAutomatic with approved IRS Form 7004
Original Filing DeadlineApril 15, 2026
Extended Filing DeadlineOctober 15, 2026
Payment DueApril 15, 2026 (100% of tax owed)
Payment FormNC CD-419 / D-410P | North Carolina Extension Payment
Online PaymentNorth Carolina Online Tax Extension Payment
State AgencyNorth Carolina Department of Revenue
Failure to File Penalty5% of unpaid tax per month, up to 25%.
Failure to Pay Penalty10% of tax not paid by the original due date.

North Carolina Business Tax Extension – Fiduciary

NC CD-419 / D-410P | North Carolina Extension Payment  •  Fiduciary
Original deadline: April 15, 2026 Extended to: October 15, 2026 Extension: 6 months automatic

North Carolina Fiduciary Tax Extension

North Carolina trusts and estates with North Carolina source income file Form D-407 (Estates and Trusts Income Tax Return) with the North Carolina Department of Revenue. The D-407 is due April 15, 2026, and a six-month extension to October 15, 2026 is available. North Carolina accepts the federal Form 7004 extension for fiduciary returns–no separate state extension form is needed–provided all North Carolina fiduciary income tax owed is paid by April 15, 2026. North Carolina fiduciary income tax rates follow the individual income tax rate schedule.

Original Deadline April 15, 2026
Extended Deadline October 15, 2026
NC Tax Due April 15, 2026 – North Carolina fiduciary income tax must be paid in full by April 15, 2026. The 10% failure-to-pay penalty and interest accrue on any unpaid balance after April 15, 2026, regardless of whether a valid extension has been filed.

Extending a North Carolina Fiduciary Return

File IRS Form 7004 before April 15, 2026. North Carolina automatically extends Form D-407 to October 15, 2026 based on the federal extension. Pay all North Carolina fiduciary income tax by April 15, 2026 through the North Carolina Department of Revenue online portal or by mailing a check with Form D-410P to: NC Department of Revenue, P.O. Box 25000, Raleigh, NC 27640-0640. North Carolina resident trusts are taxed on all income regardless of source, while nonresident trusts are taxed only on North Carolina-source income–confirm the trust's residency classification before computing the extension payment.

North Carolina trusts that distribute income to beneficiaries during the tax year may reduce the trust-level North Carolina income tax obligation, as distributed income is taxed to the beneficiaries rather than the trust. Fiduciaries considering pre-April 15 distributions should evaluate the impact on both the trust's North Carolina tax liability and the beneficiaries' North Carolina filing obligations.

NC Fiduciary Extension Checklist

  • File IRS Form 7004 before April 15, 2026 to extend the North Carolina Form D-407 return to October 15, 2026–no separate state extension form is needed.
  • Pay all North Carolina fiduciary income tax by April 15, 2026 through the NC online portal or by mail with Form D-410P to avoid the 10% failure-to-pay penalty.
  • Confirm whether the trust is a North Carolina resident or nonresident trust to determine the correct tax base for the extension payment.
  • File the completed Form D-407 with the North Carolina Department of Revenue by October 15, 2026.

Working with a Tax Professional

Fiduciary returns carry unique complexities – a licensed CPA or Enrolled Agent can navigate the details and ensure your North Carolina return is filed accurately and on time.

  1. Get matched with a verified U.S.-based CPA or Enrolled Agent
  2. Upload your business documents via secure drag-and-drop
  3. Review your return with transparent, upfront pricing
  4. Your TaxPro files the North Carolina return by October 15, 2026

Connect with a TaxPro →

How to Pay

North Carolina requires online payment for tax amounts of $750 or more. Submit electronically via the North Carolina Online Tax Extension Payment portal. For amounts under $750, complete NC CD-419 / D-410P | North Carolina Extension Payment and mail with your payment.

Online – Required $750+

North Carolina Online Payment Portal

Submit electronically through the North Carolina Online Tax Extension Payment system. Required for all payments $750 and above.

Mail – Under $750

NC CD-419 / D-410P | North Carolina Extension Payment by Check

Download NC CD-419 / D-410P | North Carolina Extension Payment and mail with your check or money order. Include your EIN and tax year on the check.

NC Department of Revenue
P.O. Box 25000
Raleigh, NC 27640-0640

Late Filing & Payment Penalties

Penalty TypeAmount
Failure to File5% of unpaid tax per month, up to 25%.
Failure to Pay10% of tax not paid by the original due date.

Fiduciary Quick Reference

State AbbreviationNC
Entity TypeFiduciary
Extension StatusAutomatic with approved IRS Form 7004
Original Filing DeadlineApril 15, 2026
Extended Filing DeadlineOctober 15, 2026
Payment DueApril 15, 2026 (100% of tax owed)
Payment FormNC CD-419 / D-410P | North Carolina Extension Payment
Online PaymentNorth Carolina Online Tax Extension Payment
State AgencyNorth Carolina Department of Revenue
Failure to File Penalty5% of unpaid tax per month, up to 25%.
Failure to Pay Penalty10% of tax not paid by the original due date.

Extended? Your North Carolina Business Return Deadline Is Coming Up.

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