diff --git a/app/main/views/service_settings.py b/app/main/views/service_settings.py
index 572c430c7..10fb6412a 100644
--- a/app/main/views/service_settings.py
+++ b/app/main/views/service_settings.py
@@ -296,6 +296,14 @@ def service_switch_email_auth(service_id):
     return redirect(url_for('.service_settings', service_id=service_id))
 
 
+@main.route("/services/<service_id>/service-settings/can-send-precompiled-letter")
+@login_required
+@user_has_permissions(admin_override=True)
+def service_switch_can_send_precompiled_letter(service_id):
+    switch_service_permissions(service_id, 'precompiled_letter')
+    return redirect(url_for('.service_settings', service_id=service_id))
+
+
 @main.route("/services/<service_id>/service-settings/archive", methods=['GET', 'POST'])
 @login_required
 @user_has_permissions('manage_settings', admin_override=True)
diff --git a/app/templates/views/service-settings.html b/app/templates/views/service-settings.html
index b39a7d850..bce3f0ad6 100644
--- a/app/templates/views/service-settings.html
+++ b/app/templates/views/service-settings.html
@@ -323,6 +323,13 @@
           {% endif %}
           </li>
         {% endif %}
+        {% if 'letter' in current_service.permissions %}
+          <li class="bottom-gutter">
+            <a href="{{ url_for('.service_switch_can_send_precompiled_letter', service_id=current_service.id) }}" class="button">
+              {{ 'Stop sending precompiled letters' if 'precompiled_letter' in current_service.permissions else 'Allow to send precompiled letters' }}
+            </a>
+          </li>  
+        {% endif %}
         <li class="bottom-gutter">
           <a href="{{ url_for('.service_switch_email_auth', service_id=current_service.id) }}" class="button">
             {{ 'Stop editing user auth' if 'email_auth' in current_service.permissions else 'Allow editing user auth' }}
diff --git a/tests/app/main/views/service_settings/test_service_setting_permissions.py b/tests/app/main/views/service_settings/test_service_setting_permissions.py
index 57a6cdcf1..fdcfa55e9 100644
--- a/tests/app/main/views/service_settings/test_service_setting_permissions.py
+++ b/tests/app/main/views/service_settings/test_service_setting_permissions.py
@@ -35,6 +35,11 @@ def get_service_settings_page(
     ({'permissions': ['sms']}, '.service_switch_can_send_sms', {}, 'Stop sending sms'),
     ({'permissions': []}, '.service_switch_can_send_sms', {}, 'Allow to send sms'),
 
+    ({'permissions': ['letter', 'precompiled_letter']},
+        '.service_switch_can_send_precompiled_letter', {}, 'Stop sending precompiled letters'),
+    ({'permissions': ['letter']},
+        '.service_switch_can_send_precompiled_letter', {}, 'Allow to send precompiled letters'),
+
     ({'permissions': ['sms']}, '.service_set_inbound_number', {'set_inbound_sms': True}, 'Allow inbound sms'),
 
     ({'active': True}, '.archive_service', {}, 'Archive service'),
@@ -48,32 +53,23 @@ def test_service_setting_toggles_show(get_service_settings_page, service_one, se
     assert page.find('a', {'class': 'button', 'href': button_url}).text.strip() == text
 
 
-@pytest.mark.parametrize('permissions', [
-    ['inbound_sms'], []
+@pytest.mark.parametrize('permissions,permissions_text', [
+    ('inbound_sms', 'inbound sms'),                 # no sms parent permission
+    ('precompiled_letter', 'precompiled letters'),  # no letter parent permission
+    # also test no permissions set
+    ('', 'inbound sms'),
+    ('', 'precompiled letters')
 ])
-def test_service_settings_doesnt_show_inbound_options_if_sms_disabled(
+def test_service_settings_doesnt_show_option_if_parent_permission_disabled(
     get_service_settings_page,
     service_one,
-    permissions
+    permissions,
+    permissions_text
 ):
-    service_one['permissions'] = permissions
+    service_one['permissions'] = [permissions]
     page = get_service_settings_page()
     toggles = page.find_all('a', {'class': 'button'})
-    assert not any(button for button in toggles if 'inbound sms' in button.text)
-
-
-@pytest.mark.parametrize('permissions', [
-    ['letters_as_pdf'], []
-])
-def test_service_settings_doesnt_show_letters_as_pdf_options_if_letters_disabled(
-    get_service_settings_page,
-    service_one,
-    permissions
-):
-    service_one['permissions'] = permissions
-    page = get_service_settings_page()
-    toggles = page.find_all('a', {'class': 'button'})
-    assert not any(button for button in toggles if 'letters as PDF' in button.text)
+    assert not any(button for button in toggles if permissions_text in button.text)
 
 
 @pytest.mark.parametrize('service_fields, hidden_button_text', [