Louisiana pass through entity return

File the Louisiana pass through entity return with the Louisiana Department of Revenue by the 15th day of the 5th month after the fiscal year ends (May 15 for a calendar year), with the owners' state K-1s.

When: By the 15th day of the 5th month after the fiscal year ends (May 15 for a calendar year).
Agency: Louisiana Department of Revenue
Applies to: S corporations, partnerships and LLCs taxed as partnerships registered in Louisiana.
Source: revenue.louisiana.gov, read October 22, 2026

Jay explains

An S corporation or partnership doing business in Louisiana files a state information return by the 15th day of the 5th month after the fiscal year ends (May 15 for a calendar year), on the state's own date rather than the federal one, so the owners can report their shares on their own Louisiana returns. Some states charge a minimum tax or filing fee with it; check the Louisiana Department of Revenue page.

Next dates

For a calendar year company. Shown as the agency states them; if a date falls on a weekend, file before it.

May 15, 2027
May 15, 2028

Also in Louisiana

Louisiana annual report Louisiana annual report Louisiana annual report Louisiana nonprofit annual report Louisiana charitable organization registration: only with a paid solicitor Louisiana corporate income tax return Louisiana corporate estimated tax payment Louisiana personal income tax return with business income Louisiana unemployment insurance wage report Louisiana annual withholding reconciliation Louisiana sales tax return

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Your company's compliance calendar

Three answers to start. Refine it after.

What kind of organization is it?

An LLC's tax treatment decides which federal return it files. Choose the line that matches yours. Nonprofits are covered too.

State of formation

Employees

Count everyone on payroll. An S corporation's working owners are employees: they are paid a salary.

Where is it based? The state of the office, or of most of the people

A company based outside its state of formation is registered in both and files in both.

More about the company: other states, payroll, dates, abroad

Company name

Date registered in each other state

Optional. Some states key their report to the day you registered there rather than your date of formation; without it, the formation date stands in and the calendar says so.

Who runs payroll?

Fiscal year ends in

Date of formation

Louisiana keys its report to this date. Add it and the calendar places it.

Annual revenue

Some taxes start at a revenue threshold.

We pay independent contractors We offer a retirement plan (401(k), SIMPLE, SEP)

Outside the United States We hold a bank or financial account outside the US A person or company outside the US owns 25% or more of it We own 10% or more of a company outside the US We pay people or companies outside the US

Each adds the FinCEN or IRS form that comes with it: the FBAR, Form 5472, Form 5471, Forms 1042 and 1042-S.

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