diff --git a/config/core.entity_form_display.oc_organisation.client.default.yml b/config/core.entity_form_display.oc_organisation.client.default.yml
index 7de4697..b22f847 100644
--- a/config/core.entity_form_display.oc_organisation.client.default.yml
+++ b/config/core.entity_form_display.oc_organisation.client.default.yml
@@ -3,6 +3,7 @@ langcode: en
 status: true
 dependencies:
   config:
+    - field.field.oc_organisation.client.field_accreditation_date
     - field.field.oc_organisation.client.field_client_status
     - field.field.oc_organisation.client.field_client_substatus
     - field.field.oc_organisation.client.field_client_subtype
@@ -17,6 +18,7 @@ dependencies:
     - field.field.oc_organisation.client.field_umbrella_client
     - opencase_entities.oc_organisation_type.client
   module:
+    - datetime
     - file
 _core:
   default_config_hash: OUNi7pV7COebgUedxmuEz4ZF1VF4QDet2AcZ_2j3jQs
@@ -25,6 +27,12 @@ targetEntityType: oc_organisation
 bundle: client
 mode: default
 content:
+  field_accreditation_date:
+    weight: 62
+    settings: {  }
+    third_party_settings: {  }
+    type: datetime_default
+    region: content
   field_client_status:
     weight: 4
     settings: {  }
diff --git a/config/core.entity_view_display.oc_organisation.client.default.yml b/config/core.entity_view_display.oc_organisation.client.default.yml
index 8ced796..a23ddbb 100644
--- a/config/core.entity_view_display.oc_organisation.client.default.yml
+++ b/config/core.entity_view_display.oc_organisation.client.default.yml
@@ -3,6 +3,7 @@ langcode: en
 status: true
 dependencies:
   config:
+    - field.field.oc_organisation.client.field_accreditation_date
     - field.field.oc_organisation.client.field_client_status
     - field.field.oc_organisation.client.field_client_substatus
     - field.field.oc_organisation.client.field_client_subtype
@@ -17,6 +18,7 @@ dependencies:
     - field.field.oc_organisation.client.field_umbrella_client
     - opencase_entities.oc_organisation_type.client
   module:
+    - datetime
     - file
     - options
 _core:
@@ -26,6 +28,15 @@ targetEntityType: oc_organisation
 bundle: client
 mode: default
 content:
+  field_accreditation_date:
+    weight: 62
+    label: above
+    settings:
+      format_type: medium
+      timezone_override: ''
+    third_party_settings: {  }
+    type: datetime_default
+    region: content
   field_client_status:
     weight: 6
     label: above
diff --git a/config/field.field.oc_organisation.client.field_accreditation_date.yml b/config/field.field.oc_organisation.client.field_accreditation_date.yml
new file mode 100644
index 0000000..a69ab5c
--- /dev/null
+++ b/config/field.field.oc_organisation.client.field_accreditation_date.yml
@@ -0,0 +1,21 @@
+uuid: 3261ac4b-36e5-483b-af01-ec2a7852ac5b
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.oc_organisation.field_accreditation_date
+    - opencase_entities.oc_organisation_type.client
+  module:
+    - datetime
+id: oc_organisation.client.field_accreditation_date
+field_name: field_accreditation_date
+entity_type: oc_organisation
+bundle: client
+label: 'Accreditation date'
+description: 'If the client has more than one accreditation then this will show the date of the most recent one.'
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings: {  }
+field_type: datetime
diff --git a/config/field.storage.oc_organisation.field_accreditation_date.yml b/config/field.storage.oc_organisation.field_accreditation_date.yml
new file mode 100644
index 0000000..3a3f6df
--- /dev/null
+++ b/config/field.storage.oc_organisation.field_accreditation_date.yml
@@ -0,0 +1,24 @@
+uuid: dcd05ff2-5201-46ba-ae2a-3da730db0826
+langcode: en
+status: true
+dependencies:
+  module:
+    - datetime
+    - field_permissions
+    - opencase_entities
+third_party_settings:
+  field_permissions:
+    permission_type: public
+id: oc_organisation.field_accreditation_date
+field_name: field_accreditation_date
+entity_type: oc_organisation
+type: datetime
+settings:
+  datetime_type: date
+module: datetime
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false