Hawaii Estimated Tax Payments (2026)

Do you have to pay estimated taxes in Hawaii?

Yes. If you're self-employed in Hawaii and expect to owe $500 or more in Hawaii income tax for 2026 after withholding, you must make quarterly estimated payments to Hawaii Department of Taxation. That is below the federal $1,000 threshold, so most part-time freelancers owe them too. Hawaii taxes income at graduated rates up to 11%.

When are Hawaii estimated taxes due in 2026?

Hawaii doesn't follow the standard federal due dates in 2026. The 2026 due dates are:

• Q1, April 20, 2026

• Q2, June 22, 2026

• Q3, September 21, 2026

• Q4, January 20, 2027

How much should you set aside for Hawaii estimated taxes?

Plan to set aside 25% to 30% of your net self-employment profit to cover federal and Hawaii taxes combined, then confirm the exact amount with the calculator above. On $50,000 of net freelance profit, federal self-employment tax alone is about $7,065 (15.3% on 92.35% of your earnings). On top of that you'll owe federal income tax and Hawaii income tax at graduated rates up to 11%.

How do you avoid a Hawaii underpayment penalty?

To avoid a Hawaii underpayment penalty, pay the smaller of 60% of your 2026 Hawaii tax or 100% of your 2025 tax, in four on-time installments. Paying the full amount late doesn't help; each installment has to be on time. You can estimate a federal underpayment penalty here.

What deductions lower your Hawaii estimated taxes?

Because estimated taxes are based on your net profit, every business write-off you claim lowers what you owe each quarter. Common deductions for 1099 workers, reported on Schedule C, include the home-office deduction, car mileage, phone and internet, software, and supplies. You can also deduct half of your self-employment tax, and the federal Qualified Business Income (QBI) deduction can remove up to 20% of your qualified business income, which flows through to your Hawaii return in most states.

Keeper's 1099 tax calculator estimates your bill after deductions, and our write-off guides list the deductions for your line of work.

Do Hawaii freelancers owe local or other taxes too?

Yes. Beyond income tax, Hawaii freelancers can owe another tax. General Excise Tax (GET) on gross business receipts, most Hawaii self-employed people owe this in addition to income tax, filed separately.

Note: Figures are current for the 2026 tax year and are for planning, not tax advice. Confirm the details with the Hawaii Department of Taxation before you file.

How to file quarterly taxes in Hawaii

Filing quarterly in Hawaii means two separate payments each period: one to the IRS for federal tax, and one to Hawaii Department of Taxation for your state taxes. Here’s how to do it.

1. Confirm you need to pay. You owe estimated payments when tax isn’t withheld from enough of your income — 1099 or freelance work, investment income, or other untaxed income. Federal and Hawaii run separate tests: the state generally requires estimated payments if you expect to owe $500 or more in Hawaii tax after withholding and credits, subject to its safe-harbor rules.
2. Calculate your federal estimate. Use the Form 1040-ES worksheet (or tax software). Estimate your full-year income, add your federal income tax and self-employment tax, subtract anything already withheld from a paycheck, and split the rest across the year. The estimate at the top of this page gives you a starting number.
3. Calculate your Hawaii estimate separately. Work out your Hawaii amount on its own using Form N-200V. Don’t just send part of your federal payment to the state — the Hawaii calculation is separate, based on your Hawaii income tax, credits, and any Hawaii withholding.
4. Pay the IRS. Pay through IRS Direct Pay (or EFTPS) and choose the estimated tax / Form 1040-ES option. Select tax year 2026 and save the confirmation number. This money counts only toward your federal taxes.
5. Pay Hawaii separately. Make a second payment to Hawaii Tax Online and select the Form N-200V estimated payment for 2026. Save that confirmation too. This money counts only toward your Hawaii taxes.
6. Repeat on each deadline. For 2026, federal estimated payments are due April 15, 2026, June 15, 2026, September 15, 2026, and January 15, 2027. Hawaii sets its own due dates: April 20, 2026, June 22, 2026, September 21, 2026, and January 20, 2027. Don’t assume the 15th.

Steps reflect 2026 rules and are for planning, not tax advice.