Filing your 2024 Hawaii state income tax return is essential for every individual and business in the islands. Whether you’re a first-time filer or have been submitting returns for years, understanding Hawaii’s income tax system—and how it interacts with general excise tax and other tax licenses—can help you manage your tax liability and avoid unexpected taxes owed. With the Hawaii Department of Taxation offering both paper and online options, you can choose the most convenient and secure way to file tax returns that works for you.

This guide will teach you which state tax forms to use, from Form N-11 for full-year residents to Form N-15 for part-year filers and nonresidents, and various schedules for claiming tax credits. We’ll walk through key deadlines—including the April 21, 2025, due date and the automatic October extension—and show you how to determine your taxable income, calculate your tax rates, and apply credits to reduce your tax liability. Along the way, you will see how to submit payments, check refund status, and conduct everyday transactions through Hawaii Tax Online, where you can e-file returns, make ACH or credit card payments, and access other services.

By the end of this introduction, you will understand the essentials: who needs to file, what documents to gather, and how to navigate both federal and state tax requirements in Hawaii. We’ll cover everything from income sources—wages, dividends, and business receipts—to deductions, exemptions, and credits available for Hawaii taxpayers. Whether you live on Oahu, Maui, or any other island, this guide will equip you with the necessary resources to file accurately, claim every benefit you’re granted, and stay compliant with Hawaii’s taxation rules.

Overview of Hawaii State Income Tax for 2024

Who Needs to File

Hawaii’s state tax system requires residents and certain nonresidents to file an income tax return when their gross income exceeds specific thresholds. Filing ensures you accurately report your total taxable income, calculate your overall tax liability, and determine whether you owe taxes or will receive a refund.

  • Residents Under Age 65: For 2024, single filers or married couples filing separately must file if their gross income exceeds $5,544, heads of household file at $7,568, and married couples filing jointly at $11,088. These thresholds prevent low-income taxpayers from unnecessarily filing and ensure that Hawaii collects revenue fairly.

  • Residents Age 65 or Older: Taxpayers 65 or older benefit from higher filing thresholds: $6,688 for single or married filing separately, $8,712 for heads of household, and up to $13,376 for married couples filing jointly when both spouses are over 65. The increased limits recognize retirement income sources and ease the burden on senior residents.

  • Special Filing Requirements: Anyone conducting business in Hawaii—such as holding tax licenses or collecting general excise tax—must file regardless of income level, and dependents must file if their standard deduction exceeds their income. These rules ensure that all taxable activities are reported and that dependents with unearned income still meet their reporting obligations.

Key Deadlines

Meeting filing and payment deadlines helps you avoid costly penalties and interest. Hawaii’s penalty structure includes a 5% late-filing penalty per month (up to 25%), a 0.5% late-payment penalty per month (up to 25%), and interest on any unpaid balance from the original due date.

  • Primary Filing Deadline: April 21, 2025 — To avoid penalties, you must file your return and pay any balance due by this date.

  • Automatic Extension Deadline: October 21, 2025 — Hawaii grants a six-month extension when you’re due a refund or pay at least 90% of your estimated tax liability by April 21. An automatic extension postpones the filing deadline, not the payment due date.

  • Estimated Tax Payments: April 21, June 20, September 20, 2024, and January 21, 2025 — If you expect to owe $500 or more, make quarterly payments to avoid underpayment penalties.

What’s New in 2024

Hawaii continually updates tax policies to reflect economic needs and provide targeted relief. The 2024 changes lower taxable income for many residents and offer new planning opportunities for businesses and military personnel.

  • Increased Standard Deductions: Standard deductions rose to $4,400 for single or married filing separately, $6,424 for heads of household, and $8,800 for married filing jointly or qualifying surviving spouses. These higher deductions reduce taxable income and can lower the taxes owed for most filers.

  • Pass-Through Entity Election: Partnerships and S corporations may now elect to pay state income tax at the entity level, with owners claiming a credit on their tax-paid returns. This change prevents double taxation on business income and simplifies filing for many small businesses.

  • Expanded Military Pay Exclusion: Up to $8,082 of Hawaii National Guard or reserve duty pay can now be excluded from gross income. This exclusion provides valuable tax relief for servicemembers and recognizes their contribution to state and national security.

What Forms to Use

Form N-11 (Resident Return)

  • Use When: You lived in Hawaii all year, your federal adjusted gross income (AGI) is nonzero, and you do not qualify for the simplified form.

  • Where to Get It:  Download Form N-11 (Rev. 2024) and instructions from the Hawaii Department of Taxation website, or file electronically via Hawaii Tax Online.

Form N-11SF (Simplified Return)

Your federal and Hawaii AGIs are zero; you were a resident all year, cannot be claimed as a dependent, and you only claim the Refundable Food/Excise Tax Credit. You must have a valid government-issued ID and meet presence requirements.

Form N-15 (Nonresident or Part-Year Return)

You lived in Hawaii for part of 2024 or earned Hawaii-source income as a nonresident. File to report income tax liability on wages, interest, dividends, and other taxable income earned in Hawaii.

Common Schedules & Credits

  • Schedule CR (Tax Credits): This form is required when claiming refundable or nonrefundable credits. The 2024 version includes columns for unused carryover credits.

  • Form N-200V (Payment Voucher): Use this voucher when submitting checks or money orders for balances due.

  • Form N-210 (Underpayment of Estimated Tax): File if you owe underpayment penalties on quarterly estimated payments.

  • Form N-311 (Refundable Food/Excise Tax Credit): Claim this credit if eligible to reduce your tax liability or receive a refund even with no tax owed.

Step-by-Step Instructions to Complete Your Return

Step 1: Gather Required Documents and State Tax Forms

Before you begin filing, assemble all necessary paperwork in one place.

  • W-2 and 1099 Forms: Collect W-2s from every employer and 1099-INT, 1099-DIV, 1099-R, and other 1099 forms reporting interest, dividends, and retirement distributions.

  • Schedule K-1s and Business Records: Include K-1s from partnerships or S corporations and profit-and-loss statements if you operate a sole proprietorship or small business.

  • Deduction Documentation: Mortgage interest statements (Form 1098), charitable donation receipts, and medical expense records help you decide whether to itemize deductions instead of taking the standard deduction.

  • Prior-Year Return and Bank Information: Keep a copy of your 2023 Hawaii and federal returns for reference, and have your bank routing and account numbers ready if you prefer direct deposit for any refund.

Step 2: Choose Your Filing Status

Your filing status determines which tax rates, standard deductions, and credits you qualify for, so selecting the correct status can significantly affect your tax liability. 

  • Single: Unmarried individuals file under this status. This option uses the standard deduction and tax brackets designed for individuals without dependents, which may result in a higher tax liability than other statuses.

  • Married Filing Jointly: Couples combine income and deductions on one return. Filing jointly typically offers the lowest combined tax rates and allows spouses to claim full credits and deductions.

  • Married Filing Separately: Spouses file separate returns, each reporting only their income and deductions. While this can benefit financial situations, it often disqualifies or limits certain credits and deductions.

  • Head of Household: Unmarried taxpayers with qualifying dependents may use this status. It provides a larger standard deduction and more advantageous tax brackets than the single status, reducing overall tax liability.

  • Qualifying Surviving Spouse: Widowed individuals with a dependent child can use this status for up to two years after their spouse’s death. It mirrors the Married Filing Jointly rates and deductions, offering more favorable tax treatment.

Step 3: Calculate Hawaii AGI

Begin with your federal AGI from your federal tax return, then adjust for Hawaii-specific items:

  • Hawaii Additions: Add state and local tax refunds previously deducted and interest from non-Hawaii bonds.

  • Hawaii Subtractions: Subtract interest from Hawaii state and local bonds and up to $8,082 of military reserve or National Guard pay.

Step 4: Decide Standard vs. Itemized Deduction

Compare your allowable itemized expenses—medical costs above 7.5% of AGI, state and local taxes paid, and charitable gifts—to the 2024 standard deduction amounts. Choose whichever yields a lower taxable income.

Step 5: Apply Tax Credits

Before you calculate your final tax liability, it’s important to claim credits for which you’re eligible, as they directly reduce the amount of taxes owed or can increase your refund. 

  • Refundable Food/Excise Tax Credit: This credit can result in a refund even if your tax liability is zero, helping lower your overall taxes owed and putting cash back in your pocket.

  • Earned Income Tax Credit (EITC): The EITC is a benefit for low- to moderate-income taxpayers based on earned income and family size, and it can significantly reduce their tax liability or increase their refund.

  • Child Tax Credit (if eligible): Provides up to a set amount per qualifying child, which can lower your tax bill or boost your refund when claimed as a refundable credit.

  • Renewable Energy Technologies Credit: A nonrefundable credit that helps offset the cost of installing qualifying renewable energy systems, reducing your tax liability but not generating a refund.

  • Child and Dependent Care Credit:  This credit allows you to claim a percentage of eligible care expenses for dependents so you can work or seek employment, reducing your overall tax owed.

  • Low-Income Housing Credit: A nonrefundable credit designed to encourage investment in affordable housing, which can lower your tax liability to the amount you owe.

Step 6: Compute Your Tax

Use Hawaii’s progressive tax tables based on filing status and taxable income. Rates range from 1.4% on the first $2,400 to 11.0% on income over $200,000. Calculate the tax liability, subtract credits, and determine any balance due or refund amount.

Common Mistakes to Avoid

  • Wrong Form: Filing N-15 instead of N-11 for residents can delay processing.

  • Missed Adjustments: Overlooking Hawaii-specific subtractions and additions.

  • Forgotten Signatures: Both spouses must sign joint returns, or e-filing won’t be accepted.

  • Missing Schedules: Omit Schedule CR when claiming credits; you will lose valuable tax relief.

How to File Your Return 

Electronic Filing (Recommended)

Filing online is a convenient and secure way to submit returns and payments. Visit hitax.hawaii.gov to e-file basic returns free, receive instant confirmation, and choose direct deposit for refunds. Many approved commercial tax software programs also support joint federal and state filing.

Paper Filing

If you prefer to file a paper return, print and complete the appropriate form (N-11, N-11SF, or N-15), attach all required schedules and payment vouchers, and mail your packet via certified mail or with delivery confirmation to ensure it arrives by the deadline. Be sure to include any check or money order payable to “Hawaii Department of Taxation,” with your Social Security number and tax year noted on the memo line.

  • Without payment, send your return to:
    • Hawaii Department of Taxation
      P.O. Box 3559
      Honolulu, HI 96811-3559

  • For payment or to submit estimated payment vouchers and extension requests, send to:
    • Hawaii Department of Taxation
      P.O. Box 1530
      Honolulu, HI 96806-1530

Include the correct Form N-200V voucher and your Social Security number or taxpayer ID on all checks or money orders.

How to Make a Payment

Online Payment Options

  • ACH Debit (Free): Pay directly from checking or savings at no fees.

  • Credit/Debit Card: Available via Hawaii Tax Online; third-party fees of 2–3% apply.

Traditional Methods

  • Check or Money Order: Payable to “Hawaii Department of Taxation.” Include your SSN and tax year on the memo line.

  • Payment Voucher: Attach Form N-200V to your payment for proper crediting.

Deadlines & Penalties

The balance due and estimated payments of over $500 must be paid by April 21, 2025. Late-filing penalties are 5% per month (max 25%), and late-payment penalties are 0.5% per month (max 25%). Interest accrues from the original due date.

Payment Plans

If you owe over $100 and cannot pay in full, request a payment plan through Hawaii Tax Online to spread payments over time and avoid additional penalties.

How to Track Your Refund or Balance Due

Where’s My Refund Tool

Check daily at tax.hawaii.gov/wheres-my-refund. The electronic returns process takes 7–8 weeks; paper returns take 9–10 weeks.

Checking Balance Due

Log in to your Hawaii Tax Online account to view current account details, payments made, and any remaining balance due.

Identity Verification

You will receive a mailed notice with instructions if additional verification is required. Respond promptly to avoid processing delays.

Final Filing Checklist

Completed the Correct Tax Forms

Ensure you’ve filled out Form N-11, N-11SF, or N-15 accurately and attached all required state tax forms and schedules, such as Schedule CR for claiming tax credits. Using the right forms helps the Hawaii Department determine your taxable income and total tax liability before you file your return.

Gathered All Income and Deduction Documents

Collect W-2s, 1099s, Schedule K-1s, and records for deductible items like mortgage interest, charitable gifts, or general excise tax paid on business purchases. Complete documentation supports every line on your tax return and maximizes your ability to claim exemptions and credits.

Verified Calculations and Payments

Double-check your math for taxable income, applicable tax rates, and total taxes owed. Confirm that payments—whether ACH debit or credit card fees made through Hawaii Tax Online—have posted to your account by April 21 to avoid late-payment penalties and interest charges. 

Reviewed Personal and Account Information

Ensure names, Social Security numbers, and direct-deposit details (bank routing and account numbers) are correctly entered. Accurate information prevents errors, ensures prompt refund deposits, and keeps your account secure when you file.

Secured Proof of Filing or Mailing

If you choose the most convenient and secure way to e-file, save the confirmation page or email showing that you submitted your tax return. If you mail your packet, use certified mail or delivery confirmation—and retain the tracking receipt as evidence you submitted by the deadline.

Set Up Post-Filing Reminders and Record Retention

Save copies of your filed return, payment vouchers (Form N-200V), and supporting publications in a safe place for at least four years. Use a calendar or online task tool to remind yourself of next year’s filing due date, quarterly estimated payments, and other everyday transactions online.

Frequently Asked Questions

What if I miss the April 21 deadline?

If you miss the April 21 filing and payment due date, file your tax return as soon as possible to limit additional tax liability and penalties. Hawaii’s Department of Taxation charges a 5% late-filing penalty per month on taxes owed (capped at 25%) and a 0.5% late-payment penalty per month (also capped at 25%). Interest accrues on both taxable income balances and penalties from the original due date.

Can I e-file for free?

Yes, Hawaii Tax Online provides a convenient and secure way for taxpayers to file tax returns and submit payments without fees. You can file individual income tax returns, claim tax credits, and manage your state tax account online. If your adjusted gross income is $66,000 or less, you generally qualify for free e-file services, ACH debit transactions, and direct deposit of any refund.

What deductions do people often miss?

Taxpayers frequently overlook deductions that reduce taxable income and tax liability. Commonly missed items include general excise tax paid on business purchases, educator expenses, Hawaii state disability insurance premiums, and non-cash charitable contributions. Wages used for itemized medical expenses, moving costs for military members, and investment interest expense often slip through the cracks. Review various forms, receipts, and publications from the Hawaii Department to claim every eligible benefit.

How do I request an extension?

You don’t need to submit a special form to receive Hawaii’s automatic six-month extension, which is granted when you pay at least 90% of your estimated tax liability or are due a refund by April 21. This extension gives you until October 21 to file your state tax return and attach all schedules. Payments remain due on April 21 to avoid interest and late-payment fees.

Can I file jointly if I moved mid-year?

Yes, married couples can file a joint return even if one spouse moved to or from Hawaii during the year. Typically, you’ll use Form N-15 for part-year residents and Form N-11 for full-year residents, or allocate income, exemptions, and credits proportionally. Consult Hawaii Department publications to determine taxable income shares and everyday transactions online, and ensure you submit the correct tax forms and schedules.

How long should I keep my tax records?

Keep your completed tax returns and supporting documents—including W-2s, 1099s, general excise tax certificates, and receipts—for at least four years from the original due date. If you omitted reportable income, retain records for six years. You may need to keep files longer for fraudulent returns or worthless securities claims. Proper record management helps you respond to IRS or Hawaii Department inquiries and calculate amendments accurately.