1099 Contractor in Hawaii with a Delaware Client: Where Do You File?
Answer
Two possible returns, one certainty. The certainty is Hawaii, which taxes residents on all self-employment income and expects quarterly estimated payments. The possibility is Delaware, which taxes nonresidents on services actually performed inside the state — invoices sent there do not count.
Last verified
The client's location is the wrong thing to track. What matters is where you were sitting when you did the work — which is why a contractor's exposure to Delaware is measured in days on the ground rather than in invoices sent.
Delaware publishes no de minimis day count or dollar floor for nonresidents. Any Delaware-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 Delaware Division of Revenue nonresident instructions before filing.
What you file
- 1Quarterly estimated payments · Hawaii
Make quarterly estimated payments to Hawaii Department of Taxation on your full self-employment income — nothing is withheld from a 1099.
- 2Nonresident return · DelawareForm PIT-NON
File a Delaware nonresident return only if you performed services inside Delaware. Delaware publishes no de minimis day count or dollar floor for nonresidents. Any Delaware-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 Delaware Division of Revenue nonresident instructions before filing.
- 3Resident return · HawaiiSchedule CR
File the Hawaii resident return last and claim the credit for any tax paid to Delaware.
The two states, side by side
| Hawaii | Delaware | |
|---|---|---|
| Taxes wages | Yes — graduated | Yes — graduated |
| Reciprocity partners | None | None |
| Convenience rule | No | Yes — general rule |
| Nonresident return | Form N-15 | Form PIT-NON |
| Credit for other-state tax | Schedule CR | Schedule I (Form PIT-RES) |
| Nonresident safe harbour | None published | None published |
| Local income tax | No | Yes |
| Revenue department | Hawaii Department of Taxation | Delaware Division of Revenue |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in Delaware and working in Hawaii 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: Hawaii → DelawareBoth states — credit offsets the double tax
- Remote worker: Hawaii → DelawareConvenience-of-the-employer rule — both states tax you
- Moved mid-year: Hawaii → DelawareTwo part-year returns
Other Hawaii pairs
Questions people actually ask
I live in Hawaii and my client is in Delaware. Do I have to file a Delaware tax return?
Two possible returns, one certainty. The certainty is Hawaii, which taxes residents on all self-employment income and expects quarterly estimated payments. The possibility is Delaware, which taxes nonresidents on services actually performed inside the state — invoices sent there do not count.
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 Hawaii and Delaware hold an agreement makes no difference to a self-employed filer — sourcing rules decide the answer instead.
How current is this?
The Hawaii and Delaware rules on this page were last checked against Hawaii Department of Taxation and Delaware Division of Revenue 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.
- Hawaii Department of Taxation — individual income taxaccessed 2026-08-07
- Delaware Division of Revenue — individual income taxaccessed 2026-08-07