Important Announcement

Due to critical system updates and the Labor Day holiday, the Louisiana Department of Revenue (LDR) will be closed from 2 p.m. on Friday, Sept. 4, 2026, through Monday, Sept. 7, 2026. In addition to the closure of all LDR offices during this period, all online services including electronic tax filing and payments and the Louisiana Taxpayer Access Point (LaTAP) portal will be unavailable as well. All in-person, telephone and online customer service will resume on Tuesday, Sept. 8.

Tax Forms

Find the Right Louisiana Tax Form

Whether you’re filing an individual tax return, registering a business, requesting a Power of Attorney, or applying for a resale certificate, the Louisiana Department of Revenue (LDR) provides the forms, instructions, and publications you need.

Search for forms by form number, tax type, keyword, or tax year.

Search Examples

  • IT-540
  • Power of Attorney
  • Resale Certificate
  • Estimated Tax
  • Withholding
  • Extension

Electronic Filing Available

Many Louisiana tax forms and returns can be completed or filed electronically. Whenever possible, LDR encourages taxpayers to use File & Pay Online or LaTAP instead of submitting paper forms.

Individual Income Tax Return (IT-540)

File a Louisiana Resident Individual Income Tax Return.

File Online Download Form

 

Nonresident & Part-Year Resident Return (IT-540B)

File a Louisiana Nonresident or Part-Year Resident Individual Income Tax Return.

File Online (not available for first-time filers) Download Form

 

Louisiana Resale Certificate (R-1064)

Apply for, renew, print, or validate your Louisiana Resale Certificate through LaTAP.

Access LaTAP Learn More

 

Corporation Income & Franchise Tax Return (CIFT-620)

File a Louisiana Corporation Income and Franchise Tax Return.

Download Form

 

Employee Withholding Exemption Certificate (L-4)

Complete or update your Louisiana Employee Withholding Exemption Certificate.

Download Form

 

Power of Attorney (R-7006)

Authorize an individual or business to represent you before the Louisiana Department of Revenue.

Download Form Electronic Submission

 

Declaration of Estimated Tax (IT-540ES)

Make estimated Louisiana individual income tax payments.

Make an Online Payment LaTap Link Download Form

 

Business Registration (R-16019)

Apply for a Louisiana Revenue Account Number when online registration is unavailable.

Access LaTAP Download Form

 

Nonprofit Fundraising Sales Tax Exemption (R-1048)

Request an exemption from collecting Louisiana state sales tax for qualifying nonprofit fundraising events.

Download Form Learn More

 

Looking to File a Sales Tax Return?

Louisiana Sales Tax Returns are required to be filed electronically.

File your return, make a payment, view your account, or manage your sales tax account using one of LDR’s secure online services.

File and Pay Taxes