diff --git a/api/v1alpha1/annotations.go b/api/v1alpha1/annotations.go
new file mode 100644
index 00000000..db775017
--- /dev/null
+++ b/api/v1alpha1/annotations.go
@@ -0,0 +1,18 @@
+package v1alpha1
+
+const (
+	// AnnotationKeyPrefix is the prefix used for annotation key values
+	AnnotationKeyPrefix = LabelKeyPrefix
+
+	// UserIDUserAnnotationKey is used to set an annotation value in the User resource on the member cluster, that
+	// contains the user's User ID as set in the user's JWT token.
+	UserIDUserAnnotationKey = AnnotationKeyPrefix + "sso-user-id"
+
+	// AccountIDUserAnnotationKey is used to set an annotation value in the User resource on the member cluster, that
+	// contains the user's Account ID as set in the user's JWT token.
+	AccountIDUserAnnotationKey = AnnotationKeyPrefix + "sso-account_id"
+
+	// EmailUserAnnotationKey is used to set an annotation value in the User resource on the member cluster, that
+	// contains the user's Email as set in the user's JWT token.
+	EmailUserAnnotationKey = AnnotationKeyPrefix + "email"
+)