1099 Contractor in Alabama with a Wisconsin Client: Where Do You File?
Answer
Alabama always, Wisconsin sometimes. With no withholding on a 1099 the whole tax is yours to manage: estimate to Alabama through the year, and file a Wisconsin nonresident return for any income from work you physically performed in Wisconsin, claiming the credit back on the Alabama 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 Wisconsin is measured in days on the ground rather than in invoices sent.
Wisconsin publishes a dollar floor for nonresidents rather than a day count. Wisconsin publishes a nonresident gross-income floor: a nonresident with Wisconsin gross income below the published amount is not required to file a Wisconsin return. Reaching it brings the whole Wisconsin-source amount into the return.
What you file
- 1Quarterly estimated payments · Alabama
Make quarterly estimated payments to Alabama Department of Revenue on your full self-employment income — nothing is withheld from a 1099.
- 2Nonresident return · WisconsinForm 1NPR
File a Wisconsin nonresident return only if you performed services inside Wisconsin. Wisconsin publishes a nonresident gross-income floor: a nonresident with Wisconsin gross income below the published amount is not required to file a Wisconsin return. Reaching it brings the whole Wisconsin-source amount into the return.
- 3Resident return · AlabamaSchedule CR
File the Alabama resident return last and claim the credit for any tax paid to Wisconsin.
The two states, side by side
| Alabama | Wisconsin | |
|---|---|---|
| Taxes wages | Yes — graduated | Yes — graduated |
| Reciprocity partners | None | 4 (Form W-220) |
| Convenience rule | No | No |
| Nonresident return | Form 40NR | Form 1NPR |
| Credit for other-state tax | Schedule CR | Schedule OS |
| Nonresident safe harbour | None published | Dollar floor published |
| Local income tax | Yes | No |
| Revenue department | Alabama Department of Revenue | Wisconsin Department of Revenue |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in Wisconsin and working in Alabama 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: Alabama → WisconsinBoth states — credit offsets the double tax
- Remote worker: Alabama → WisconsinHome state only
- Moved mid-year: Alabama → WisconsinTwo part-year returns
Other Alabama pairs
Questions people actually ask
I live in Alabama and my client is in Wisconsin. Do I have to file a Wisconsin tax return?
Alabama always, Wisconsin sometimes. With no withholding on a 1099 the whole tax is yours to manage: estimate to Alabama through the year, and file a Wisconsin nonresident return for any income from work you physically performed in Wisconsin, claiming the credit back on the Alabama 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 Alabama and Wisconsin hold an agreement makes no difference to a self-employed filer — sourcing rules decide the answer instead.
How current is this?
The Alabama and Wisconsin rules on this page were last checked against Alabama Department of Revenue and Wisconsin 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.
- Alabama Department of Revenue — individual income taxaccessed 2026-08-07
- Wisconsin Department of Revenue — individual income taxaccessed 2026-08-07