Moved from Oregon to South Carolina Mid-Year: Which State Tax Returns Do You File?
Answer
Oregon for the first part of the year, South Carolina for the rest. Each state's part-year return reports the income received during that state's residency period and prorates the standard deduction, exemptions and credits accordingly. Keep evidence of the date you actually changed domicile.
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 · OregonForm OR-40-P
File a Oregon part-year return covering the months you lived in Oregon. A part-year resident of Oregon reports the income received while a Oregon resident, plus any Oregon-source income received during the rest of the year, and prorates the deductions and credits to the residency period.
- 2Part-year return · South CarolinaForm SC1040 with Schedule NR
File a South Carolina part-year return covering the months you lived in South Carolina. A part-year resident of South Carolina reports the income received while a South Carolina resident, plus any South Carolina-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
| Oregon | South Carolina | |
|---|---|---|
| Taxes wages | Yes — graduated | Yes — graduated |
| Reciprocity partners | None | None |
| Convenience rule | No | No |
| Nonresident return | Form OR-40-N | Form SC1040 with Schedule NR |
| Part-year return | Form OR-40-P | Form SC1040 with Schedule NR |
| Credit for other-state tax | Schedule OR-ASC-NP | Form SC1040TC |
| Nonresident safe harbour | None published | None published |
| Local income tax | Yes | No |
| Revenue department | Oregon Department of Revenue | South Carolina Department of Revenue |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in South Carolina and working in Oregon 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: Oregon → South CarolinaBoth states — credit offsets the double tax
- Remote worker: Oregon → South CarolinaHome state only
- 1099 contractor: Oregon → South CarolinaHome state, plus the client state if you work there
Other Oregon pairs
Questions people actually ask
I moved from Oregon to South Carolina mid-year. Do I have to file in both states?
Oregon for the first part of the year, South Carolina for the rest. Each state's part-year return reports the income received during that state's residency period and prorates the standard deduction, exemptions and credits accordingly. Keep evidence of the date you actually changed domicile.
How do I split my income between Oregon and South Carolina?
By when you received it, measured against the date your domicile actually changed. Income received while you were a Oregon resident belongs on the Oregon return and income received afterwards on the South Carolina 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 Oregon and South Carolina rules on this page were last checked against Oregon Department of Revenue and South Carolina 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.
- Oregon Department of Revenue — individual income taxaccessed 2026-08-07
- South Carolina Department of Revenue — individual income taxaccessed 2026-08-07