Form IT-540 (2023): Louisiana Resident

Form IT-540 is the official Louisiana income tax return for residents who filed federal income taxes for the year 2023. It allows you to report your income earned in LA, claim deductions and credits, and determine if you owe taxes to the state or are eligible for a refund.

Who Should File Form IT-540?

A. You must file Form IT-540 if you were a resident of Louisiana for all or part of 2023 and had taxable income from any source.

B. You may want to file even if you didn't owe federal income tax, as you might qualify for Louisiana-specific deductions and credits.

What Information Do I Need to File Form IT-540?

  • Your Social Security number(s)
  • Filing status (Single, Married Filing Jointly, etc.)
  • W-2 forms from all employers
  • 1099 forms reporting other income sources (interest, dividends, etc.)
  • Records of deductions and credits you may be eligible for

How to File Form IT-540?

A. Electronically: The Louisiana Department of Revenue encourages e-filing through their website for faster processing and fewer errors.

B. Paper Form: You can download the paper form IT-540 attached below and mail it.

To access the current year's Form IT-540, click here.