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Hawaii Business State Tax Extension I C Corporations Filing Guide

N201V | Business Income Tax Payment Voucher  ·  C Corporations  ·  Business Filing Guide

Overview

Hawaii C Corporations are subject to state corporate income tax requirements, administered by the Hawaii Department of Taxation. Hawaii automatically grants an extension to file with no application or form submission required.

Original Filing Deadline

The original due date for the Hawaii C Corporations return is April 20, 2026. File or remit full payment by this date to remain in good standing.

Extension Granted Automatically

Hawaii automatically grants a filing extension for C Corporations. The extended filing deadline is October 20, 2026. No application or form submission is required to receive this extension.

Payment Is Still Due by Original Deadline

The extension applies to filing only—it is not an extension to pay taxes owed. Any outstanding tax liability must be paid by the original due date of April 20, 2026 to avoid penalties and interest. Use the Hawaii | Online Tax Extension Payment to pay electronically. For mail-in payments, use N201V | Business Income Tax Payment Voucher and send to: Hawaii Department of Taxation Attn: Payment Section P.O. Box 1530 Honolulu, Hawaii 96806-1530

Late Filing and Payment Penalties

• Failure to File: 5% of the tax owed for each month that the failure continues up to a maximum 25%.
• Failure to Pay: Up to 25% of the underpayment.

Best Practices

• Estimate and pay your Hawaii business tax by April 20, 2026 to avoid interest and penalties.
• No extension form is required—Hawaii grants the extension automatically.
• Use the state online payment portal for fast, convenient electronic payment.
• Set a reminder to file your completed Hawaii C Corporations return by October 20, 2026.

Final Thoughts

• Hawaii’s automatic extension simplifies the process—no paperwork required. Pay any balance due by April 20, 2026 and file your return by October 20, 2026.
• Quick Reference Table
• State Abbreviation
• HI
• State Name
• Hawaii
• Business Entity Type
• C Corporations
• Extension Status
• Approved Automatically
• Return Due Date
• April 20, 2026
• Extended Due Date
• October 20, 2026
• Other Information
• Hawaii grants you an automatic 6-month extension to file your business tax return.
• The extension is NOT an extension to pay any taxes you may have due. Tax payments are due by the original return due date.
• Online Payment
• Hawaii | Online Tax Extension Payment
• Payment Voucher Form
• N201V | Business Income Tax Payment Voucher
• State Payment Agency
• Hawaii Department of Taxation
• Mailing Address with Payment
• Hawaii Department of Taxation Attn: Payment Section P.O. Box 1530 Honolulu, Hawaii 96806-1530
• Failure to File Penalties
• 5% of the tax owed for each month that the failure continues up to a maximum 25%.
• Failure to Pay Penalties
• Up to 25% of the underpayment.

Working with a Tax Professional

Business tax returns are complex—a licensed CPA or Enrolled Agent can maximize deductions, ensure accurate calculations, and handle filing on your behalf. Here's how working with a TaxPro typically goes:

1. 1Get matched with a verified U.S.-based CPA or Enrolled Agent
2. 2Upload your business documents via secure drag-and-drop
3. 3Review and approve your return with upfront, transparent fees
4. 4Your TaxPro files your Hawaii return by October 20, 2026

Quick Reference Table

State Abbreviation	HI
State Name	Hawaii
Business Entity Type	C Corporations
Extension Status	Approved Automatically
Return Due Date	April 20, 2026
Extended Due Date	October 20, 2026
Other Information	Hawaii grants you an automatic 6-month extension to file your business tax return. The extension is NOT an extension to pay any taxes you may have due. Tax payments are due by the original return due date.
Online Payment	Hawaii | Online Tax Extension Payment
Payment Voucher Form	N201V | Business Income Tax Payment Voucher
State Payment Agency	Hawaii Department of Taxation
Mailing Address with Payment	Hawaii Department of Taxation Attn: Payment Section P.O. Box 1530 Honolulu, Hawaii 96806-1530
Failure to File Penalties	5% of the tax owed for each month that the failure continues up to a maximum 25%.
Failure to Pay Penalties	Up to 25% of the underpayment.