1099 Contractor in Mississippi with a Kentucky Client: Where Do You File?
Answer
Two possible returns, one certainty. The certainty is Mississippi, which taxes residents on all self-employment income and expects quarterly estimated payments. The possibility is Kentucky, which taxes nonresidents on services actually performed inside the state — invoices sent there do not count.
Last verified
Reciprocity agreements are the first thing contractors ask about and the first thing that does not apply to them. Every agreement in the country is a wage-withholding arrangement, and a 1099 has no withholding to switch off.
Kentucky publishes no de minimis day count or dollar floor for nonresidents. Any Kentucky-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 Kentucky Department of Revenue nonresident instructions before filing.
What you file
- 1Quarterly estimated payments · Mississippi
Make quarterly estimated payments to Mississippi Department of Revenue on your full self-employment income — nothing is withheld from a 1099.
- 2Nonresident return · KentuckyForm 740-NP
File a Kentucky nonresident return only if you performed services inside Kentucky. Kentucky publishes no de minimis day count or dollar floor for nonresidents. Any Kentucky-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 Kentucky Department of Revenue nonresident instructions before filing.
- 3Resident return · MississippiForm 80-160
File the Mississippi resident return last and claim the credit for any tax paid to Kentucky.
The two states, side by side
| Mississippi | Kentucky | |
|---|---|---|
| Taxes wages | Yes — flat | Yes — flat |
| Reciprocity partners | None | 7 (Form 42A809) |
| Convenience rule | No | No |
| Nonresident return | Form 80-205 | Form 740-NP |
| Credit for other-state tax | Form 80-160 | Schedule ITC |
| Nonresident safe harbour | None published | None published |
| Local income tax | No | Yes |
| Revenue department | Mississippi 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 Mississippi 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: Mississippi → KentuckyBoth states — credit offsets the double tax
- Remote worker: Mississippi → KentuckyHome state only
- Moved mid-year: Mississippi → KentuckyTwo part-year returns
Other Mississippi pairs
Questions people actually ask
I live in Mississippi and my client is in Kentucky. Do I have to file a Kentucky tax return?
Two possible returns, one certainty. The certainty is Mississippi, which taxes residents on all self-employment income and expects quarterly estimated payments. The possibility is Kentucky, which taxes nonresidents on services actually performed inside the state — invoices sent there do not count.
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 Mississippi and Kentucky hold an agreement makes no difference to a self-employed filer — sourcing rules decide the answer instead.
How current is this?
The Mississippi and Kentucky rules on this page were last checked against Mississippi 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.
- Mississippi Department of Revenue — individual income taxaccessed 2026-08-07
- Kentucky Department of Revenue — individual income taxaccessed 2026-08-07