1099 Contractor in Iowa with a Utah Client: Where Do You File?
Answer
Iowa always, Utah sometimes. With no withholding on a 1099 the whole tax is yours to manage: estimate to Iowa through the year, and file a Utah nonresident return for any income from work you physically performed in Utah, claiming the credit back on the Iowa return.
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 Utah is measured in days on the ground rather than in invoices sent.
Utah publishes no de minimis day count or dollar floor for nonresidents. Any Utah-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 Utah State Tax Commission nonresident instructions before filing.
What you file
- 1Quarterly estimated payments · Iowa
Make quarterly estimated payments to Iowa Department of Revenue on your full self-employment income — nothing is withheld from a 1099.
- 2Nonresident return · UtahForm TC-40 with Schedule TC-40B
File a Utah nonresident return only if you performed services inside Utah. Utah publishes no de minimis day count or dollar floor for nonresidents. Any Utah-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 Utah State Tax Commission nonresident instructions before filing.
- 3Resident return · IowaForm IA 130
File the Iowa resident return last and claim the credit for any tax paid to Utah.
The two states, side by side
| Iowa | Utah | |
|---|---|---|
| Taxes wages | Yes — flat | Yes — flat |
| Reciprocity partners | 1 (Form 44-016) | None |
| Convenience rule | No | No |
| Nonresident return | Form IA 1040 with Schedule IA 126 | Form TC-40 with Schedule TC-40B |
| Credit for other-state tax | Form IA 130 | Schedule TC-40S |
| Nonresident safe harbour | None published | None published |
| Local income tax | Yes | No |
| Revenue department | Iowa Department of Revenue | Utah State Tax Commission |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in Utah and working in Iowa 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: Iowa → UtahBoth states — credit offsets the double tax
- Remote worker: Iowa → UtahHome state only
- Moved mid-year: Iowa → UtahTwo part-year returns
Other Iowa pairs
Questions people actually ask
I live in Iowa and my client is in Utah. Do I have to file a Utah tax return?
Iowa always, Utah sometimes. With no withholding on a 1099 the whole tax is yours to manage: estimate to Iowa through the year, and file a Utah nonresident return for any income from work you physically performed in Utah, claiming the credit back on the Iowa return.
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 Iowa and Utah hold an agreement makes no difference to a self-employed filer — sourcing rules decide the answer instead.
How current is this?
The Iowa and Utah rules on this page were last checked against Iowa Department of Revenue and Utah State Tax Commission 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.
- Iowa Department of Revenue — individual income taxaccessed 2026-08-07
- Utah State Tax Commission — individual income taxaccessed 2026-08-07