Hawaii taxes self-employment income through its state income tax. This calculator adds the Hawaii brackets on top of federal self-employment and income tax so you see one number to hold back from every payment.
Single-filer brackets applied by the calculator (doubled for married filing jointly). Source: Tax Foundation 2026 state rate survey with 2026 legislative updates.
| Taxable income (single) | Rate |
|---|---|
| $0 | 1.40% |
| over $9,600 | 3.20% |
| over $14,400 | 5.50% |
| over $19,200 | 6.40% |
| over $24,000 | 6.80% |
| over $36,000 | 7.20% |
| over $48,000 | 7.60% |
| over $125,000 | 7.90% |
| over $175,000 | 8.25% |
| over $225,000 | 9.00% |
| over $275,000 | 10.00% |
| over $325,000 | 11.00% |
For a single filer in Hawaii with $72,000 of 1099 income and $9,000 of expenses and no other income, the calculator estimates a set-aside rate of 20.7%: $8,902 of self-employment tax, $3,827 of federal income tax, and $2,140 of Hawaii income tax.
Federal estimated payments are due April 15, June 15 and September 15, 2026, and January 15, 2027, if you expect to owe $1,000 or more after withholding. Hawaii has its own estimated tax schedule and safe-harbor rules; the state share in the tracker is a quarter of the projected annual state tax.
Track it all year with the 2026 Set-Aside Tracker, which includes every state.