diff --git a/config/exclusions/csharp.yaml b/config/exclusions/csharp.yaml
new file mode 100644
index 00000000..c71a4430
--- /dev/null
+++ b/config/exclusions/csharp.yaml
@@ -0,0 +1,5 @@
+exclusions:
+  - id: Exclusions.Test
+    name: Exclude test source code
+    patterns:
+      - "(.*(?i)(Tests|UnitTest(s)?)/.*)|/.*Test(s)?[.]cs$"
\ No newline at end of file