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Central Servicing Agent (CSA)
About the CSA
The Central Servicing Agent (CSA) is appointed by SBA (through an awarded contract, as outlined in 13 CFR § 120.954) to serve as an agent for CDCs participating in the 504 loan program. The CSA performs payment collection, escrow, and paying agent functions for 504 loans, debentures, and pools.
Who is the CSA?
The current holder of the CSA contract is Guidehouse, Inc. (Subcontractor: Computershare, Corporate Trust Services).
Contact
Servicing/Funding: SBA504CSA@sba.gov
ETRAN: CAFSQuestions@sba.gov
Please visit the CSA Wiki Site linked below for more contact information.
CSA Resources
CSA Wiki Site
CSA'S Funding Quick Reference Guide
CSA User Manual
The CSA Wiki website serves as a central, comprehensive resource for CSA-related tools, timelines, updates, and reference materials. Use the CSA Wiki for quick access to essential information and guidance on CSA processes.
CSA User Manual
CSA'S Funding Quick Reference Guide
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'S Funding Quick Reference Guide
CSA'S Funding Quick Reference Guide
CSA'S Funding Quick Reference Guide
Use the document as a reference guide for common mistakes made when compiling funding documentation. Updated as of May 2025.
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