Moved from Wyoming to Mississippi Mid-Year: Which State Tax Returns Do You File?
Answer
A single part-year filing in Mississippi. Your former state asks for nothing, having no income tax to levy. Make sure your employer switched withholding to Mississippi at the right date — a late switch leaves a balance due on the Mississippi return.
Last verified
Coming from a state with no income tax means arriving with no Mississippi withholding history and no prior-year liability to base estimates on. The first Mississippi return is where that catches up, so the withholding start date matters.
What you file
- 1Part-year return · MississippiForm 80-205
File a Mississippi part-year return covering the months you lived in Mississippi. Wyoming has no wage income tax, so there is nothing to file for the earlier part of the year.
The two states, side by side
| Wyoming | Mississippi | |
|---|---|---|
| Taxes wages | No | Yes — flat |
| Reciprocity partners | None | None |
| Convenience rule | No | No |
| Nonresident return | Not applicable | Form 80-205 |
| Part-year return | Not applicable | Form 80-205 |
| Credit for other-state tax | No income tax | Form 80-160 |
| Nonresident safe harbour | Not applicable | None published |
| Local income tax | No | No |
| Revenue department | Wyoming Department of Revenue | Mississippi Department of Revenue |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in Mississippi and working in Wyoming gives:One part-year return — the state you left.
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: Wyoming → MississippiWork state only
- Remote worker: Wyoming → MississippiNo state income tax on your wages
- 1099 contractor: Wyoming → MississippiClient state only, if you work there
Other Wyoming pairs
Questions people actually ask
I moved from Wyoming to Mississippi mid-year. Do I have to file in both states?
A single part-year filing in Mississippi. Your former state asks for nothing, having no income tax to levy. Make sure your employer switched withholding to Mississippi at the right date — a late switch leaves a balance due on the Mississippi return.
How do I split my income between Wyoming and Mississippi?
By when you received it, measured against the date your domicile actually changed. Income received while you were a Wyoming resident belongs on the Wyoming return and income received afterwards on the Mississippi return. Keep evidence of the move date — a lease, a closing statement, a licence issue date.
How current is this?
The Wyoming and Mississippi rules on this page were last checked against Wyoming Department of Revenue and Mississippi 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.
- Wyoming Department of Revenue — individual income taxaccessed 2026-08-07
- Mississippi Department of Revenue — individual income taxaccessed 2026-08-07