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.

Fiduciary

Tax Year 2025

Advanced Tax Solutions, LLC
Product Name- MyTaxPrepOffice
1603 Capitol Ave. Suite 310 A254
Cheyenne, WY 82001
https://www.mytaxprepoffice.com/
IT-541
IT-541-2D

Bloomberg Industry Group (Superform)
1801 S. Bell Street
Arlington, VA. 22202
https://pro.bloombergtax.com/spftware/
IT-541-2D

CCH Incorporated
9111 E Douglas Ave., Ste. 300
Wichita, KS 67207
http://taxna.wolterskluwer.com
IT-541
IT-541-2D
IT-541 Extension Payments

Crosslink Professional Tax Solutions, LLC.
16916 S Harlan Rd.
Lathrop, CA. 95330
Phone: 800-345-4337
https://www.CrossLinkTax.com
IT-541
IT-541-2D
IT-541 Extension Payments

Drake Software, LLC. (Drake Tax)
235 E. Palmer Street
Franklin, NC 28734
http://www.drakesoftware.com
IT-541
IT-541-2D
IT-541 Extension Payments

Instead, LLC. (Instead)
515 Folsom 2nd Floor
San Francisco, CA. 94105
https://www.instead.com/
IT-541
IT-541-2D
IT-541 Extension Payments

Intuit ProSeries Business
7535 Torrey Santa Fe Road
San Diego, CA 92129
Phone: 800-934-1040 (Sales)
https://proconnect.intuit.com
IT-541
IT-541-2D

Intuit Lacerte
7535 Torrey Santa Fe Road
San Diego, CA 92129
Phone: 800-934-1040 (Sales)
https://accountants.intuit.com/tax-software/lacerte/
IT-541
IT-541-2D
IT-541 Extension Payments

Intuit ProConnect Tax Online
7535 Torrey Santa Fe Road
San Diego, CA 92129
Phone: 800-934-1040 (Sales)
https://accountants.intuit.com/tax-software/tax-online/
IT-541
IT-541 Extension Payments

Intuit TurboTax Business
7535 Torrey Santa Fe Road
San Diego, CA 92129
Phone: 800-934-1040 (Sales)
https://proconnect.intuit.com
IT-541

On-line Taxes (OLT Pro Desktop)
724 Jules Street
Saint Joseph , MO 64501
http://www.OLTPRO.com
IT-541
IT-541-2D

On-line Taxes (OLT Pro Web)
724 Jules Street
Saint Joseph , MO 64501
http://www.OLTPRO.com
IT-541

TaxSlayer
945 Broad St.
Augusta, GA. 30901
Phone: 706-868-0985
http://www.TaxSlayer.com
IT-541
IT-541-2D

Thomson Reuters (GoSystem)
6160 Warren Pkwy.
Frisco, TX. 75034
http://www.thomsonreuters.com
IT-541
IT-541-2D
IT-541 Extension Payments

Thomson Reuters (UltraTax CS)
6160 Warren Pkwy.
Frisco, TX. 75034
Phone: 800-968-8900 (Sales & Support)
http://www.thomsonreuters.com
IT-541
IT-541-2D
IT-541 Extension Payments

Thomson Reuters (OneSource)
6160 Warren Pkwy.
Frisco, TX. 75034
Phone: 800-968-8900 (Sales & Support)
http://www.thomsonreuters.com
IT-541-2D

Universal Tax Systems, Inc. (ATX)
225 Chastain Meadows Ct. NW, Ste. 300
Kennesaw, GA. 30144
https://www.https://www.wolterskluwer.com
IT-541
IT-541-2D

Universal Tax Systems, Inc. (TaxWise)
225 Chastain Meadows Ct. NW, Ste. 300
Kennesaw, GA. 30144
https://www.https://www.wolterskluwer.com
IT-541-2D

Tax Year 2024

Advanced Tax Solutions, LLC
Product Name- MyTaxPrepOffice
1603 Capitol Ave. Suite 310 A254
Cheyenne, WY 82001
https://www.mytaxprepoffice.com/
IT-541

CCH Incorporated
9111 E Douglas Ave., Ste. 300
Wichita, KS 67207
http://taxna.wolterskluwer.com
IT-541

Crosslink Professional Tax Solutions, LLC. (Crosslink by Petz)
16916 S Harlan Rd.
Lathrop, CA. 95330
Phone: 800-345-4337
https://www.CrossLinkTax.com
CIFT-620
CIFT-620 Extension Payments

Crosslink Professional Tax Solutions, LLC. (Crosslink)
16916 S Harlan Rd.
Lathrop, CA. 95330
Phone: 800-345-4337
https://www.CrossLinkTax.com
IT-541
IT-541 Extension Payments

Drake Software, LLC. (Drake Tax)
235 E. Palmer Street
Franklin, NC 28734
http://www.drakesoftware.com
IT-541

H & R Block (Blockworks)
One H&R Block Way
Kansas City, MO 64105
Phone: 1-800-HRBLOCK
http://www.hrblock.com
IT-541

Instead, LLC.
515 Folsom St., FL 2
San Francisco, CA 94105
http://www.instead.com
IT-541

Intuit ProSeries Business
7535 Torrey Santa Fe Road
San Diego, CA 92129
Phone: 800-934-1040 (Sales)
http://www.intuit.com
IT-541

Intuit Lacerte
Intuit TurboTax Business
7535 Torrey Santa Fe Road
San Diego, CA 92129
Phone: 800-934-1040 (Sales)
http://www.intuit.com
IT-541
IT-541 Extension Payments

On-line Taxes
724 Jules Street
Saint Joseph , MO 64501
http://www.OLTPRO.com
IT-541

TaxSlayer
945 Broad St.
Augusta, GA. 30901
Phone: 706-868-0985
http://www.TaxSlayer.com
IT-541

Thomson Reuters (GoSystem/OneSource)
6160 Warren Pkwy.
Frisco, TX. 75034
http://www.thomsonreuters.com
IT-541
IT-541 Extension Payments

Thomson Reuters (UltraTax CS)
6160 Warren Pkwy.
Frisco, TX. 75034
Phone: 800-968-8900 (Sales & Support)
http://www.thomsonreuters.com
IT-541
IT-541 Extension Payments

Universal Tax Systems, Inc. (ATX)
225 Chastain Meadows Ct. NW, Ste. 300
Kennesaw, GA. 30144
https://www.https://www.wolterskluwer.com/en/solutions/atx
IT-541

Wolters Kluwer-CCH (ProSystem)
9111 E Douglas Ave., Suite 300
Wichita, KS 67207
https://www.wolterskluwer.com
IT-541

Tax Year 2023

Advanced Tax Solutions, LLC
Product Name- MyTaxPrepOffice
1603 Capitol Ave. Suite 310 A254
Cheyenne, WY 82001
https://www.mytaxprepoffice.com/
IT-541

Crosslink Professional Tax Software
P.O. Box 611
Tracy, CA 95378-0611
Phone: 800-345-4337
https://www.CrossLinkTax.com
IT-541
IT-541 Extension Payments

Drake Software
235 E. Palmer Street
Franklin, NC 28734
http://www.drakesoftware.com
IT-541

H & R Block Blockworks
One H&R Block Way
Kansas City, MO 64105
Phone: 1-800-HRBLOCK
https://www.hrblock.com
IT-541

Intuit
ProSeries
Intuit Tax Online
7535 Torrey Santa Fe Road
San Diego, CA 92129
Phone: 800-934-1040
https://proconnect.intuit.com/proseries/
IT-541

Lacerte Software Group
Intuit, Inc
5601 Headquarters Drive
Plano, TX 75024
Phone: 800-933-9999(Sales)
http://www.intuit.com
IT-541

On-line Taxes
724 Jules Street
Saint Joseph, MO 64501
https://www.OLT.com
IT-541

ProSystem FX/ Wolters Kluwer
9111 E Douglas Ave., Suite 300
Wichita, KS 67207
https://www.wolterskluwer.com
IT-541
IT-541 Extension Payments

Thomson Reuters
2395 Midway Road
Carrollton, TX 75006
https://www.thomsonreuters.com
IT-541

Ultra Tax CS by CS Professional Suite
6300 Interfirst Drive
Ann Arbor, MI 48108
Phone: 800-968-8900 (Sales)
Phone: 800-968-0600 (Support)
https://cs.thomsonreuters.com/UltraTaxCS/
IT-541

Tax Year 2022

Advanced Tax Solutions, LLC
Product Name- MyTaxPrepOffice
1603 Capitol Ave. Suite 310 A254
Cheyenne, WY 82001
[email protected]

Crosslink Professional Tax Software
P.O. Box 611
Tracy, CA 95378-0611
Phone: 800-345-4337
https://www.CrossLinkTax.com

H & R Block Blockworks
One H&R Block Way
Kansas City, MO 64105
Phone: 1-800-HRBLOCK
https://www.hrblock.com

Intuit
7535 Torrey Santa Fe Road
San Diego, CA 92129
Phone: 800-934-1040
https://proconnect.intuit.com/proseries/

On-line Taxes
724 Jules Street
Saint Joseph, MO 64501
https://www.OLT.com

Rhodes Computer Services/ Taxslayer
3003 Allen Drive
Evans, GA 30809
Phone: 888-420-1040
Fax: 706-868-0263
http://www.taxslayerpro.com

Thomson Reuters
2395 Midway Road
Carrollton, TX 75006
https://www.thomsonreuters.com

Ultra Tax CS by CS Professional Suite
6300 Interfirst Drive
Ann Arbor, MI 48108
Phone: 800-968-8900 (Sales)
Phone: 800-968-0600 (Support)
https://cs.thomsonreuters.com/UltraTaxCS/

Wolters Kluwer
9111 E Douglas Ave., Suite 300
Wichita, KS 67207
https://www.wolterskluwer.com

Tax Year 2021

Intuit
7535 Torrey Santa Fe Road
San Diego, CA 92129
Phone: 800-934-1040
https://proconnect.intuit.com/proseries/

H & R Block Blockworks
One H&R Block Way
Kansas City, MO 64105
Phone: 1-800-HRBLOCK
https://www.hrblock.com

Crosslink Professional Tax Software
P.O. Box 611
Tracy, CA 95378-0611
Phone: 800-345-4337
https://www.CrossLinkTax.com

Thomson Reuters
2395 Midway Road
Carrollton, TX 75006
https://www.thomsonreuters.com

Advanced Tax Solutions, LLC
Product Name- MyTaxPrepOffice
1603 Capitol Ave. Suite 310 A254
Cheyenne, WY 82001
[email protected]

Ultra Tax CS by CS Professional Suite
6300 Interfirst Drive
Ann Arbor, MI 48108
Phone: 800-968-8900 (Sales)
Phone: 800-968-0600 (Support)
https://cs.thomsonreuters.com/UltraTaxCS/

Rhodes Computer Services/ Taxslayer
3003 Allen Drive
Evans, GA 30809
Phone: 888-420-1040
Fax: 706-868-0263
http://www.taxslayerpro.com

Updated June 16, 2026