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Moved from Oklahoma to Louisiana Mid-Year: Which State Tax Returns Do You File?

Two part-year returnsBoth states claim the income

Answer

Oklahoma for the first part of the year, Louisiana 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

  1. 1Part-year return · OklahomaForm 511-NR

    File a Oklahoma part-year return covering the months you lived in Oklahoma. A part-year resident of Oklahoma reports the income received while a Oklahoma resident, plus any Oklahoma-source income received during the rest of the year, and prorates the deductions and credits to the residency period.

  2. 2Part-year return · LouisianaForm IT-540B

    File a Louisiana part-year return covering the months you lived in Louisiana. A part-year resident of Louisiana reports the income received while a Louisiana resident, plus any Louisiana-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

 OklahomaLouisiana
Taxes wagesYes — graduatedYes — flat
Reciprocity partnersNoneNone
Convenience ruleNoNo
Nonresident returnForm 511-NRForm IT-540B
Part-year returnForm 511-NRForm IT-540B
Credit for other-state taxForm 511-TXSchedule G (Form IT-540)
Nonresident safe harbourNone publishedNone published
Local income taxNoNo
Revenue departmentOklahoma Tax CommissionLouisiana Department of Revenue
Last verified

The other direction

Reversing the commute does not always reverse the answer. Living in Louisiana and working in Oklahoma gives:Two part-year returns.

Louisiana to Oklahoma →

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.

Other Oklahoma pairs

Questions people actually ask

I moved from Oklahoma to Louisiana mid-year. Do I have to file in both states?

Oklahoma for the first part of the year, Louisiana 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 Oklahoma and Louisiana?

By when you received it, measured against the date your domicile actually changed. Income received while you were a Oklahoma resident belongs on the Oklahoma return and income received afterwards on the Louisiana 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 Oklahoma and Louisiana rules on this page were last checked against Oklahoma Tax Commission and Louisiana 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.