1099 Quarterly Taxes in Hawaii (2026)
If you're self-employed in Hawaii — freelancer, contractor, gig worker, or single-member LLC — you owe quarterly estimated taxes to two agencies: the IRS (federal) and Hawaii Department of Taxation (state). Hawaii's top marginal rate is 11%, applied progressively. Getting your estimates right matters because under-payment penalties stack on top of the actual tax owed.
Hawaii state income tax (2026)
Hawaii uses a progressive bracket system on top of federal tax. For single filers in 2026:
| Income (single filer) | Marginal rate |
|---|---|
| $0 – $9,600 | 1.40% |
| $9,600 – $14,400 | 3.20% |
| $14,400 – $19,200 | 5.50% |
| $19,200 – $24,000 | 6.40% |
| $24,000 – $36,000 | 6.80% |
| $36,000 – $48,000 | 7.20% |
| $48,000 – $150,000 | 7.60% |
| $150,000 – $175,000 | 7.90% |
| $175,000 – $200,000 | 8.25% |
| $200,000 – $300,000 | 9.00% |
| $300,000 – $350,000 | 10.00% |
| $350,000+ | 11.00% |
How to pay Hawaii estimated taxes
Hawaii estimated tax due dates do not piggyback federal: Apr 20 / Jun 20 / Sep 20 / Jan 20 (vs federal Apr 15 / Jun 15 / Sep 15 / Jan 15). Confirm via N-200V instructions before paying. Pay Hawaii taxes through the Hawaii Department of Taxation's online portal: hitax.hawaii.gov. You can also mail Form N-200V with a check.
Hawaii-specific quirk freelancers miss
Hawaii has the second-highest top marginal rate in the US (11%) and a General Excise Tax (4% state + 0.5% county surcharge in Honolulu) that effectively functions like a gross-receipts tax on most freelance income. GET applies even to professional services.
Common deductions for Hawaii freelancers
- Hawaii allows the same business expenses (home office, mileage, software, etc.) as federal.
- Half of SE tax is deductible federally; check Hawaii's rules for state conformity.
- HI conforms to most federal rules but has its own modifications. QBI is allowed.
- SEP-IRA / Solo 401(k) contributions reduce both federal and Hawaii taxable income.
- Self-employed health insurance premiums are deductible federally.