diff --git a/app/domains.yml b/app/domains.yml
index ebaf0885c..ed72b8aea 100644
--- a/app/domains.yml
+++ b/app/domains.yml
@@ -65,7 +65,8 @@ innovateuk.gov.uk:
   owner: Innovate UK
   agreement_signed: true
 ncsc.gov.uk: gchq.gov.uk
-nhs.net:
+nhs.net: nhs.uk
+nhs.uk:
   owner: NHS
 nhsdigital.nhs.uk: digital.nhs.uk
 digital.nhs.uk:
diff --git a/app/main/views/add_service.py b/app/main/views/add_service.py
index 72ee367f4..e311a70e6 100644
--- a/app/main/views/add_service.py
+++ b/app/main/views/add_service.py
@@ -29,6 +29,7 @@ def _add_invited_user_to_service(invited_user):
 def _create_service(service_name, organisation_type, email_from, form):
     free_sms_fragment_limit = current_app.config['DEFAULT_FREE_SMS_FRAGMENT_LIMITS'].get(organisation_type)
     email_branding = email_branding_client.get_email_branding_id_for_domain(
+        'nhs.uk' if organisation_type == 'nhs' else
         AgreementInfo.from_current_user().canonical_domain
     )
     try:
diff --git a/tests/app/main/views/test_add_service.py b/tests/app/main/views/test_add_service.py
index ba0c606a3..56002884c 100644
--- a/tests/app/main/views/test_add_service.py
+++ b/tests/app/main/views/test_add_service.py
@@ -82,6 +82,7 @@ def test_should_add_service_and_redirect_to_dashboard_when_existing_service(
     mock_create_service,
     mock_create_service_template,
     mock_get_services,
+    mock_update_service,
     api_user_active,
     organisation_type,
     free_allowance,
@@ -111,10 +112,15 @@ def test_should_add_service_and_redirect_to_dashboard_when_existing_service(
     assert response.location == url_for('main.service_dashboard', service_id=101, _external=True)
 
 
-@pytest.mark.parametrize('email_address, expected_branding', [
-    ('test@example.voa.gsi.gov.uk', '5'),
-    ('test@example.voa.gov.uk', '5'),
-    ('test@example.gov.uk', None),
+@pytest.mark.parametrize('organisation_type, email_address, expected_branding', [
+    ('central', 'test@example.voa.gsi.gov.uk', '5'),
+    ('central', 'test@example.voa.gov.uk', '5'),
+    ('central', 'test@example.gov.uk', None),
+    # Anyone choosing ‘NHS’ for organisation type gets NHS branding no
+    # matter what their email domain is (but we look it up based on the
+    # `nhs.uk` domain to avoid hard-coding a branding ID anywhere)
+    ('nhs', 'test@example.voa.gov.uk', '4'),
+    ('nhs', 'test@nhs.uk', '4'),
 ])
 def test_should_lookup_branding_for_known_domain(
     app_,
@@ -125,6 +131,7 @@ def test_should_lookup_branding_for_known_domain(
     mock_update_service,
     mock_create_or_update_free_sms_fragment_limit,
     mock_get_all_email_branding,
+    organisation_type,
     email_address,
     expected_branding,
 ):
@@ -134,7 +141,7 @@ def test_should_lookup_branding_for_known_domain(
         'main.add_service',
         _data={
             'name': 'testing the post',
-            'organisation_type': 'central',
+            'organisation_type': organisation_type,
         }
     )
     mock_get_all_email_branding.assert_called_once_with()
diff --git a/tests/conftest.py b/tests/conftest.py
index 5781d9ebc..366ef556c 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -2463,7 +2463,7 @@ def mock_get_all_email_branding(mocker):
         non_standard_values = [
             {'idx': 1, 'colour': 'red'},
             {'idx': 2, 'colour': 'orange'},
-            {'idx': 3, 'text': None},
+            {'idx': 3, 'text': None, 'domain': 'nhs.uk'},
             {'idx': 4, 'colour': 'blue', 'domain': 'voa.gov.uk'},
         ]
         shuffle = sort_key is None