CSA Contact Information

CSA Email Boxes

ETRAN: CAFSQuestions@sba.gov

Servicing/Funding: SBA504CSA@sba.gov

Taxes: 504taxhelp@sba.gov

SBA Email Boxes

Annual Report, OCRM Annual Report Team: CDCannualreports@sba.gov

CLS Inbox: cls@sba.gov

Phone Numbers

CSA: 855-572-1637

CLS Account/IT Support Lender Hotline: 833-572-0502

Addresses

Regular Mailed Checks:

Computershare Corporate Trust Services

NW 6441

P.O. Box 1450

Minneapolis, MN 55485-6441

Overnight Mailed Checks:

Computershare Corporate Trust Services

Lockbox Services 6441

1801 Parkview Drive, 1st Floor

Shoreview, MN 55126

CSA Mailing Address for Funding Packages:

Computershare Corporate Trust Services

9062 Old Annapolis Road

Columbia, MD 21045

CSA Resources

Central Servicing Agent (CSA) User Manual

CSA's Frequently Asked Questions Resource Guide

Central Servicing Agent (CSA) User Manual

The CSA User Manual has been updated as of August 1, 2023 and is available to view as a PDF below. (The file is large, so it may take a moment to load).

CSA Manual

CSA'S Funding Quick Reference Guide

CSA's Frequently Asked Questions Resource Guide

Central Servicing Agent (CSA) User Manual

Use the document as a reference guide for common mistakes made when compiling funding documentation. Updated as of May 2025.

Funding Quick Reference Guide

CSA's Frequently Asked Questions Resource Guide

SBA 504 Central Servicing Agent Frequently Asked Questions. Updated January 2020.

FAQ Resource Guide

CSA Contact Information

CSA Email Boxes

SBA Email Boxes

Phone Numbers

Addresses

CSA Resources

Central Servicing Agent (CSA) User Manual

CSA's Frequently Asked Questions Resource Guide

Central Servicing Agent (CSA) User Manual

CSA'S Funding Quick Reference Guide

CSA's Frequently Asked Questions Resource Guide

Central Servicing Agent (CSA) User Manual

CSA's Frequently Asked Questions Resource Guide

CSA's Frequently Asked Questions Resource Guide

CSA's Frequently Asked Questions Resource Guide

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