1099 Contractor in Oklahoma with a Arizona Client: Where Do You File?
Answer
Oklahoma taxes all of it; Arizona taxes only what you earn on its soil. Nothing is withheld from a 1099, so you pay Oklahoma quarterly. A Arizona client alone creates no Arizona filing obligation — performing services inside Arizona does, and Oklahoma then credits that tax.
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 Arizona is measured in days on the ground rather than in invoices sent.
Arizona publishes no de minimis day count or dollar floor for nonresidents. Any Arizona-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 Arizona Department of Revenue nonresident instructions before filing.
What you file
- 1Quarterly estimated payments · Oklahoma
Make quarterly estimated payments to Oklahoma Tax Commission on your full self-employment income — nothing is withheld from a 1099.
- 2Nonresident return · ArizonaForm 140NR
File a Arizona nonresident return only if you performed services inside Arizona. Arizona publishes no de minimis day count or dollar floor for nonresidents. Any Arizona-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 Arizona Department of Revenue nonresident instructions before filing.
- 3Resident return · OklahomaForm 511-TX
File the Oklahoma resident return last and claim the credit for any tax paid to Arizona.
The two states, side by side
| Oklahoma | Arizona | |
|---|---|---|
| Taxes wages | Yes — graduated | Yes — graduated |
| Reciprocity partners | None | None |
| Convenience rule | No | No |
| Nonresident return | Form 511-NR | Form 140NR |
| Credit for other-state tax | Form 511-TX | Form 309 |
| Nonresident safe harbour | None published | None published |
| Local income tax | No | No |
| Revenue department | Oklahoma Tax Commission | Arizona Department of Revenue |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in Arizona and working in Oklahoma 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: Oklahoma → ArizonaBoth states — credit offsets the double tax
- Remote worker: Oklahoma → ArizonaHome state only
- Moved mid-year: Oklahoma → ArizonaTwo part-year returns
Other Oklahoma pairs
Questions people actually ask
I live in Oklahoma and my client is in Arizona. Do I have to file a Arizona tax return?
Oklahoma taxes all of it; Arizona taxes only what you earn on its soil. Nothing is withheld from a 1099, so you pay Oklahoma quarterly. A Arizona client alone creates no Arizona filing obligation — performing services inside Arizona does, and Oklahoma then credits that tax.
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 Oklahoma and Arizona hold an agreement makes no difference to a self-employed filer — sourcing rules decide the answer instead.
How current is this?
The Oklahoma and Arizona rules on this page were last checked against Oklahoma Tax Commission and Arizona Department 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.
- Oklahoma Tax Commission — individual income taxaccessed 2026-08-07
- Arizona Department of Revenue — individual income taxaccessed 2026-08-07