Homelessness Data Exchange (HDX), Versions 1.0 and 2.0

The Homelessness Data Exchange (HDX) is an online data submission tool for reporting to HUD, primarily to allow HUD to create the national-level Annual Homeless Assessment Report (AHAR) to Congress.

HDX 2.0

The new Longitudinal Systems Analysis (LSA) report has replaced the CoC’s submission of a local “AHAR” from their HMIS. The LSA will not be submitted via the HDX. Instead, HUD has developed a new platform, the Homelessness Data Exchange, version 2.0, for the submission of the LSA.

HDX 2.0 Guides, Tools, and Webinars

Log on with your original HDX username (if this is your first time logging in, you will need to create a new password by clicking “forgot your password?” on the login screen) to view and submit your LSA report data.


The original HDX continues to exist and will allow Continuums of Care to submit or view data on the:

  • Housing Inventory Count (HIC)
  • Point-in-Time (PIT) Count
  • System Performance Measures (SPM)
  • Annual Homeless Assessment Report (AHAR) – view past submissions only

Learn more about reporting in HDX.

HDX Guides, Tools, and Webinars

Guides, tools, webinars, and other resources related to HDX are provided to assist grantees.