Moved from Missouri to Kentucky Mid-Year: Which State Tax Returns Do You File?
Answer
Expect a part-year filing on each side. The point of a part-year return is that neither state taxes the whole year, so you are not double-taxed by default — but income received close to the move date has to be assigned carefully, and a lingering Missouri source can still pull a nonresident filing along with it.
Last verified
Part-year returns are designed so that neither state taxes the whole year. The risk is not double taxation by default; it is misassigning income received near the move date, and losing the proration on deductions and credits.
What you file
- 1Part-year return · MissouriForm MO-1040 with Form MO-NRI
File a Missouri part-year return covering the months you lived in Missouri. A part-year resident of Missouri reports the income received while a Missouri resident, plus any Missouri-source income received during the rest of the year, and prorates the deductions and credits to the residency period.
- 2Part-year return · KentuckyForm 740-NP
File a Kentucky part-year return covering the months you lived in Kentucky. A part-year resident of Kentucky reports the income received while a Kentucky resident, plus any Kentucky-source income received during the rest of the year, and prorates the deductions and credits to the residency period.
The two states, side by side
| Missouri | Kentucky | |
|---|---|---|
| Taxes wages | Yes — graduated | Yes — flat |
| Reciprocity partners | None | 7 (Form 42A809) |
| Convenience rule | No | No |
| Nonresident return | Form MO-1040 with Form MO-NRI | Form 740-NP |
| Part-year return | Form MO-1040 with Form MO-NRI | Form 740-NP |
| Credit for other-state tax | Form MO-CR | Schedule ITC |
| Nonresident safe harbour | None published | None published |
| Local income tax | Yes | Yes |
| Revenue department | Missouri Department of Revenue | Kentucky Department of Revenue |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in Kentucky and working in Missouri gives:Two part-year returns.
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: Missouri → KentuckyBoth states — credit offsets the double tax
- Remote worker: Missouri → KentuckyHome state only
- 1099 contractor: Missouri → KentuckyHome state, plus the client state if you work there
Other Missouri pairs
Questions people actually ask
I moved from Missouri to Kentucky mid-year. Do I have to file in both states?
Expect a part-year filing on each side. The point of a part-year return is that neither state taxes the whole year, so you are not double-taxed by default — but income received close to the move date has to be assigned carefully, and a lingering Missouri source can still pull a nonresident filing along with it.
How do I split my income between Missouri and Kentucky?
By when you received it, measured against the date your domicile actually changed. Income received while you were a Missouri resident belongs on the Missouri return and income received afterwards on the Kentucky return, with each state prorating your deductions, exemptions and credits to its own part of the year. Keep evidence of the move date — a lease, a closing statement, a licence issue date.
How current is this?
The Missouri and Kentucky rules on this page were last checked against Missouri Department of Revenue and Kentucky 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.
- Missouri Department of Revenue — individual income taxaccessed 2026-08-07
- Kentucky Department of Revenue — individual income taxaccessed 2026-08-07