1099 Contractor in California with a Hawaii Client: Where Do You File?
Answer
Pay California by instalments, and watch your Hawaii days. Reciprocity agreements do not help here: every one of them covers wage withholding, and a 1099 has no withholding to switch off. California taxes the full profit, Hawaii taxes the on-site share, and the California credit reconciles them.
Last verified
Reciprocity agreements are the first thing contractors ask about and the first thing that does not apply to them. Every agreement in the country is a wage-withholding arrangement, and a 1099 has no withholding to switch off.
Hawaii publishes no de minimis day count or dollar floor for nonresidents. Any Hawaii-source wage income above the state's general filing threshold requires a nonresident return, and that threshold is reset each year — check the current figure on the Hawaii Department of Taxation nonresident instructions before filing.
What you file
- 1Quarterly estimated payments · California
Make quarterly estimated payments to California Franchise Tax Board on your full self-employment income — nothing is withheld from a 1099.
- 2Nonresident return · HawaiiForm N-15
File a Hawaii nonresident return only if you performed services inside Hawaii. Hawaii publishes no de minimis day count or dollar floor for nonresidents. Any Hawaii-source wage income above the state's general filing threshold requires a nonresident return, and that threshold is reset each year — check the current figure on the Hawaii Department of Taxation nonresident instructions before filing.
- 3Resident return · CaliforniaSchedule S
File the California resident return last and claim the credit for any tax paid to Hawaii.
The two states, side by side
| California | Hawaii | |
|---|---|---|
| Taxes wages | Yes — graduated | Yes — graduated |
| Reciprocity partners | None | None |
| Convenience rule | No | No |
| Nonresident return | Form 540NR | Form N-15 |
| Credit for other-state tax | Schedule S | Schedule CR |
| Nonresident safe harbour | None published | None published |
| Local income tax | No | No |
| Revenue department | California Franchise Tax Board | Hawaii Department of Taxation |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in Hawaii and working in California gives:Home state, plus the client state if you work there.
Same two states, different situation
The withholding answer turns on how you are paid and where the work happens, not only on which two states are involved.
- W-2 commuter: California → HawaiiBoth states — credit offsets the double tax
- Remote worker: California → HawaiiHome state only
- Moved mid-year: California → HawaiiTwo part-year returns
Other California pairs
Questions people actually ask
I live in California and my client is in Hawaii. Do I have to file a Hawaii tax return?
Pay California by instalments, and watch your Hawaii days. Reciprocity agreements do not help here: every one of them covers wage withholding, and a 1099 has no withholding to switch off. California taxes the full profit, Hawaii taxes the on-site share, and the California credit reconciles them.
Do reciprocity agreements help a 1099 contractor?
No. Every state reciprocity agreement in the country is an arrangement about wage withholding between two revenue departments, and a 1099 has no withholding to switch off. Whether California and Hawaii hold an agreement makes no difference to a self-employed filer — sourcing rules decide the answer instead.
How current is this?
The California and Hawaii rules on this page were last checked against California Franchise Tax Board and Hawaii Department of Taxation on 2026-08-07. We re-check the full grid every December after state legislative sessions close, and re-check the convenience-of-the-employer states quarterly because that is where the rules move fastest.
Sources
Every fact above comes from the revenue department that publishes the rule. We do not cite secondary summaries, and we do not restate a figure we could not find at source.
- California Franchise Tax Board — individual income taxaccessed 2026-08-07
- Hawaii Department of Taxation — individual income taxaccessed 2026-08-07