Hawaii Estimated Tax Payments Calculator
2026 rulesEnter your expected income to see what to send Hawaii and the IRS each quarter.
Your numbers
Leave at 0 to use this year's estimate only.
Result
Hawaii quarterly payment
- Projected federal tax (incl. SE tax)$17,147
- Projected Hawaii tax$4,227
- Hawaii amount to pay in estimates$3,804
- Hawaii payment 1 · Apr 20, 2026$951
- Hawaii payment 2 · Jun 20, 2026$951
- Hawaii payment 3 · Sep 20, 2026$951
- Hawaii payment 4 · Jan 20, 2027$951
- Federal amount to pay in estimates$15,433
- Federal payment · Apr 15, 2026$3,858
- Federal payment · Jun 15, 2026$3,858
- Federal payment · Sep 15, 2026$3,858
- Federal payment · Jan 15, 2027$3,858
- First payment, state and federal$4,809
Hawaii at a glance
- Due dates
- Apr 20, 2026, Jun 20, 2026, Sep 20, 2026, Jan 20, 2027
- Rates
- Hawaii taxes income at 12 rates from 1.40% to 11%.
Hawaii tax brackets for 2026
| Rate | Taxable income |
|---|---|
| 1.40% | $0 – $9,600 |
| 3.20% | $9,600 – $14,400 |
| 5.50% | $14,400 – $19,200 |
| 6.40% | $19,200 – $24,000 |
| 6.80% | $24,000 – $36,000 |
| 7.20% | $36,000 – $48,000 |
| 7.60% | $48,000 – $125,000 |
| 7.90% | $125,000 – $175,000 |
| 8.25% | $175,000 – $225,000 |
| 9% | $225,000 – $275,000 |
| 10% | $275,000 – $325,000 |
| 11% | over $325,000 |
| Rate | Taxable income |
|---|---|
| 1.40% | $0 – $19,200 |
| 3.20% | $19,200 – $28,800 |
| 5.50% | $28,800 – $38,400 |
| 6.40% | $38,400 – $48,000 |
| 6.80% | $48,000 – $72,000 |
| 7.20% | $72,000 – $96,000 |
| 7.60% | $96,000 – $250,000 |
| 7.90% | $250,000 – $350,000 |
| 8.25% | $350,000 – $450,000 |
| 9% | $450,000 – $550,000 |
| 10% | $550,000 – $650,000 |
| 11% | over $650,000 |
Questions
When are Hawaii estimated tax payments due for 2026?
Apr 20, 2026, Jun 20, 2026, Sep 20, 2026, Jan 20, 2027.
How much do I need to pay to avoid a penalty?
This calculator uses the federal safe harbor: 90% of this year's tax, or 100% of last year's (110% if your AGI is over $150,000), less withholding. A few states use a different share of the current year's tax, so check the Hawaii estimated-tax instructions too.