diff --git a/charts/flux-instance/README.md b/charts/flux-instance/README.md
index c52ddb9..e9f26c5 100644
--- a/charts/flux-instance/README.md
+++ b/charts/flux-instance/README.md
@@ -37,7 +37,7 @@ helm -n flux-system uninstall flux
 | commonAnnotations | object | `{}` | Common annotations to add to all deployed objects including pods. |
 | commonLabels | object | `{}` | Common labels to add to all deployed objects including pods. |
 | fullnameOverride | string | `"flux"` |  |
-| instance.cluster | object | `{"domain":"cluster.local","multitenant":false,"networkPolicy":true,"type":"kubernetes"}` | Cluster https://fluxcd.control-plane.io/operator/fluxinstance/#cluster-configuration |
+| instance.cluster | object | `{"domain":"cluster.local","multitenant":false,"networkPolicy":true,"tenantDefaultServiceAccount":"default","type":"kubernetes"}` | Cluster https://fluxcd.control-plane.io/operator/fluxinstance/#cluster-configuration |
 | instance.components | list | `["source-controller","kustomize-controller","helm-controller","notification-controller"]` | Components https://fluxcd.control-plane.io/operator/fluxinstance/#components-configuration |
 | instance.distribution | object | `{"artifact":"oci://ghcr.io/controlplaneio-fluxcd/flux-operator-manifests:latest","imagePullSecret":"","registry":"ghcr.io/fluxcd","version":"2.x"}` | Distribution https://fluxcd.control-plane.io/operator/fluxinstance/#distribution-configuration |
 | instance.kustomize.patches | list | `[]` | Kustomize patches https://fluxcd.control-plane.io/operator/fluxinstance/#kustomize-patches |
diff --git a/charts/flux-instance/values.schema.json b/charts/flux-instance/values.schema.json
index 6c63120..72661de 100644
--- a/charts/flux-instance/values.schema.json
+++ b/charts/flux-instance/values.schema.json
@@ -25,6 +25,9 @@
                         "networkPolicy": {
                             "type": "boolean"
                         },
+                        "tenantDefaultServiceAccount": {
+                            "type": "string"
+                        },
                         "type": {
                             "enum": [
                                 "kubernetes",
diff --git a/charts/flux-instance/values.yaml b/charts/flux-instance/values.yaml
index 5955d9b..4161a82 100644
--- a/charts/flux-instance/values.yaml
+++ b/charts/flux-instance/values.yaml
@@ -19,9 +19,10 @@ instance:
   # -- Cluster https://fluxcd.control-plane.io/operator/fluxinstance/#cluster-configuration
   cluster: # @schema required: true
     type: kubernetes # @schema enum:[kubernetes,openshift,aws,azure,gcp]
-    multitenant: false
-    networkPolicy: true
     domain: "cluster.local"
+    networkPolicy: true
+    multitenant: false
+    tenantDefaultServiceAccount: "default"
   # -- Storage https://fluxcd.control-plane.io/operator/fluxinstance/#storage-configuration
   storage: # @schema required: false
     class: ""