1099 Contractor in Wisconsin with a Louisiana Client: Where Do You File?
Answer
Wisconsin always, Louisiana sometimes. With no withholding on a 1099 the whole tax is yours to manage: estimate to Wisconsin through the year, and file a Louisiana nonresident return for any income from work you physically performed in Louisiana, claiming the credit back on the Wisconsin 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 Louisiana is measured in days on the ground rather than in invoices sent.
Louisiana publishes no de minimis day count or dollar floor for nonresidents. Any Louisiana-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 Louisiana Department of Revenue nonresident instructions before filing.
What you file
- 1Quarterly estimated payments · Wisconsin
Make quarterly estimated payments to Wisconsin Department of Revenue on your full self-employment income — nothing is withheld from a 1099.
- 2Nonresident return · LouisianaForm IT-540B
File a Louisiana nonresident return only if you performed services inside Louisiana. Louisiana publishes no de minimis day count or dollar floor for nonresidents. Any Louisiana-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 Louisiana Department of Revenue nonresident instructions before filing.
- 3Resident return · WisconsinSchedule OS
File the Wisconsin resident return last and claim the credit for any tax paid to Louisiana.
The two states, side by side
| Wisconsin | Louisiana | |
|---|---|---|
| Taxes wages | Yes — graduated | Yes — flat |
| Reciprocity partners | 4 (Form W-220) | None |
| Convenience rule | No | No |
| Nonresident return | Form 1NPR | Form IT-540B |
| Credit for other-state tax | Schedule OS | Schedule G (Form IT-540) |
| Nonresident safe harbour | Dollar floor published | None published |
| Local income tax | No | No |
| Revenue department | Wisconsin Department of Revenue | Louisiana Department of Revenue |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in Louisiana and working in Wisconsin 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: Wisconsin → LouisianaBoth states — credit offsets the double tax
- Remote worker: Wisconsin → LouisianaHome state only
- Moved mid-year: Wisconsin → LouisianaTwo part-year returns
Other Wisconsin pairs
Questions people actually ask
I live in Wisconsin and my client is in Louisiana. Do I have to file a Louisiana tax return?
Wisconsin always, Louisiana sometimes. With no withholding on a 1099 the whole tax is yours to manage: estimate to Wisconsin through the year, and file a Louisiana nonresident return for any income from work you physically performed in Louisiana, claiming the credit back on the Wisconsin 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 Wisconsin and Louisiana hold an agreement makes no difference to a self-employed filer — sourcing rules decide the answer instead.
How current is this?
The Wisconsin and Louisiana rules on this page were last checked against Wisconsin Department of Revenue and Louisiana 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.
- Wisconsin Department of Revenue — individual income taxaccessed 2026-08-07
- Louisiana Department of Revenue — individual income taxaccessed 2026-08-07