diff --git a/app/views/organisation_relationships/managing_agents.html.erb b/app/views/organisation_relationships/managing_agents.html.erb
index a01a354d2..726533e53 100644
--- a/app/views/organisation_relationships/managing_agents.html.erb
+++ b/app/views/organisation_relationships/managing_agents.html.erb
@@ -5,19 +5,35 @@
   <%= render SubNavigationComponent.new(
     items: secondary_items(request.path, @organisation.id),
   ) %>
+  <% if !@organisation.active? %>
+    <%= govuk_notification_banner(title_text: "Important") do %>
+      <p class="govuk-notification-banner__heading govuk-!-width-full" style="max-width: fit-content">
+        This organisation is deactivated.
+      <p>
+      You cannot add any new managing agents.
+    <% end %>
+  <% end %>
   <h2 class="govuk-visually-hidden">Managing Agents</h2>
   <p class="govuk-body">A managing agent can submit logs for this organisation.</p>
   <% if @total_count == 0 %>
     <p class="govuk-body">This organisation does not currently have any managing agents.</p>
   <% end %>
 <% else %>
+  <% if !@organisation.active? %>
+    <%= govuk_notification_banner(title_text: "Important") do %>
+      <p class="govuk-notification-banner__heading govuk-!-width-full" style="max-width: fit-content">
+        This organisation is deactivated.
+      <p>
+      You cannot add any new managing agents.
+    <% end %>
+  <% end %>
   <%= render partial: "organisations/headings", locals: { main: "Your managing agents", sub: current_user.organisation.name } %>
   <p class="govuk-body">A managing agent can submit logs for this organisation.</p>
   <% if @total_count == 0 %>
     <p class="govuk-body">This organisation does not currently have any managing agents.</p>
   <% end %>
 <% end %>
-<% if current_user.support? || current_user.data_coordinator? %>
+<% if (current_user.support? || current_user.data_coordinator?) && @organisation.active? %>
   <%= govuk_button_link_to "Add a managing agent", managing_agents_add_organisation_path, html: { method: :get } %>
 <% end %>
 <% if @total_count != 0 %>
diff --git a/app/views/organisation_relationships/stock_owners.html.erb b/app/views/organisation_relationships/stock_owners.html.erb
index 4be22f7b9..41b7af06d 100644
--- a/app/views/organisation_relationships/stock_owners.html.erb
+++ b/app/views/organisation_relationships/stock_owners.html.erb
@@ -2,19 +2,35 @@
 <% if current_user.support? %>
   <%= render partial: "organisations/headings", locals: { main: @organisation.name, sub: nil } %>
   <%= render SubNavigationComponent.new(items: secondary_items(request.path, @organisation.id)) %>
+  <% if !@organisation.active? %>
+    <%= govuk_notification_banner(title_text: "Important") do %>
+      <p class="govuk-notification-banner__heading govuk-!-width-full" style="max-width: fit-content">
+        This organisation is deactivated.
+      <p>
+      You cannot add any new stock owners.
+    <% end %>
+  <% end %>
   <h2 class="govuk-visually-hidden">Stock Owners</h2>
   <p class="govuk-body">This organisation can submit logs for its stock owners.</p>
   <% if @total_count == 0 %>
     <p class="govuk-body">This organisation does not currently have any stock owners.</p>
   <% end %>
 <% else %>
+  <% if !@organisation.active? %>
+    <%= govuk_notification_banner(title_text: "Important") do %>
+      <p class="govuk-notification-banner__heading govuk-!-width-full" style="max-width: fit-content">
+        This organisation is deactivated.
+      <p>
+      You cannot add any new stock owners.
+    <% end %>
+  <% end %>
   <%= render partial: "organisations/headings", locals: { main: "Your stock owners", sub: current_user.organisation.name } %>
   <p class="govuk-body">Your organisation can submit logs for its stock owners.</p>
   <% if @total_count == 0 %>
     <p class="govuk-body">You do not currently have any stock owners.</p>
   <% end %>
 <% end %>
-<% if current_user.support? || current_user.data_coordinator? %>
+<% if (current_user.support? || current_user.data_coordinator?) && @organisation.active? %>
   <%= govuk_button_link_to "Add a stock owner", stock_owners_add_organisation_path, html: { method: :get } %>
 <% end %>
 <% if @total_count != 0 %>
diff --git a/spec/requests/organisation_relationships_controller_spec.rb b/spec/requests/organisation_relationships_controller_spec.rb
index 66d9c0ec6..feb687e0c 100644
--- a/spec/requests/organisation_relationships_controller_spec.rb
+++ b/spec/requests/organisation_relationships_controller_spec.rb
@@ -81,6 +81,22 @@ RSpec.describe OrganisationRelationshipsController, type: :request do
               expect(response.body).not_to include(inactive_organisation.name)
             end
           end
+
+          context "and current organisation is deactivated" do
+            before do
+              organisation.update!(active: false)
+              get "/organisations/#{organisation.id}/stock-owners", headers:, params: {}
+            end
+
+            it "does not show the add stock owner button" do
+              expect(page).not_to have_link("Add a stock owner")
+            end
+
+            it "shows a banner" do
+              expect(page).to have_content("This organisation is deactivated.")
+              expect(page).to have_content("You cannot add any new stock owners.")
+            end
+          end
         end
 
         context "with an organisation that are not in scope for the user, i.e. that they do not belong to" do
@@ -135,6 +151,22 @@ RSpec.describe OrganisationRelationshipsController, type: :request do
           it "shows the pagination count" do
             expect(page).to have_content("1 total managing agents")
           end
+
+          context "and current organisation is deactivated" do
+            before do
+              organisation.update!(active: false)
+              get "/organisations/#{organisation.id}/managing-agents", headers:, params: {}
+            end
+
+            it "does not show the add managing agent button" do
+              expect(page).not_to have_link("Add a managing agent")
+            end
+
+            it "shows a banner" do
+              expect(page).to have_content("This organisation is deactivated.")
+              expect(page).to have_content("You cannot add any new managing agents.")
+            end
+          end
         end
 
         context "when adding a managing agent" do