Louisiana — Estimated Tax Voucher (Instructions)
More about the Louisiana Form IT-540ESi
eFile your Louisiana tax return now 
eFiling is easier, faster, and safer than filling out paper tax forms. File your Louisiana and Federal tax returns online with TurboTax in minutes. FREE for simple returns, with discounts available for Tax-Brackets.org users!
File Now with TurboTaxWe last updated Louisiana Form IT-540ESi in March 2026 from the Louisiana Department of Revenue. This form is for income earned in tax year 2025, with tax returns due in April 2026. We will update this page with a new version of the form for 2027 as soon as it is made available by the Louisiana government.
Other Louisiana Individual Income Tax Forms:
In addition to information about Louisiana's income tax brackets, Tax-Brackets.org provides a total of 35 Louisiana income tax forms, as well as many federal income tax forms. Here's a list of some of the most commonly used Louisiana tax forms:
| Form Code | Form Name |
|---|---|
| Form R-540INS (Obsolete) | Refund Request of LA Citizens for Property Insurance-Individual |
| Form 540V | Electronic Filing Payment Voucher |
| Form IT-540 | Resident Income Tax Return |
| Form IT-540 Tax Table | Louisiana Tax Table |
| Form R-210R | Resident Underpayment Penalty Computation Worksheet |
View all 35 Louisiana Income Tax Forms
Disclaimer: While we do our best to keep Form IT-540ESi up to date and complete on Tax-Brackets.org, we cannot be held liable for errors or omissions. Is this form missing or out-of-date? Please let us know so we can fix it!
Tax Form Sources:
- Louisiana Department of Revenue ( http://www.rev.state.la.us/ )
- Department of Revenue Income Tax Forms ( http://www.revenue.louisiana.gov/sections/taxforms/default.aspx?code=PSN&ye )