diff --git a/models/staging/xero/_xero_sources.yml b/models/staging/xero/_xero_sources.yml
index 12bca25..eec9672 100644
--- a/models/staging/xero/_xero_sources.yml
+++ b/models/staging/xero/_xero_sources.yml
@@ -11,3 +11,7 @@ sources:
           Xero contacts identify other parties we transact with: customers, suppliers, employees, etc. 
 
           The most interesting contacts are our customers.
+      - name: invoices
+        identifier: invoices
+        description: |
+          Invoices that we have raised within our accounting books.