diff --git a/app/models/form/lettings/questions/created_by_id.rb b/app/models/form/lettings/questions/created_by_id.rb
index ea6375152..e4d6dfbbd 100644
--- a/app/models/form/lettings/questions/created_by_id.rb
+++ b/app/models/form/lettings/questions/created_by_id.rb
@@ -18,17 +18,16 @@ class Form::Lettings::Questions::CreatedById < ::Form::Question
     users = []
     users += if current_user.support?
                [
-                 (
-                   if log.owning_organisation
-                     log.owning_organisation.absorbing_organisation.present? ? log.owning_organisation&.absorbing_organisation&.users&.visible : log.owning_organisation&.users&.visible
-                   end),
-                 (
-                   if log.managing_organisation
-                     log.managing_organisation.absorbing_organisation.present? ? log.managing_organisation&.absorbing_organisation&.users&.visible : log.managing_organisation.users&.visible
-                   end),
+                 if log.owning_organisation
+                   log.owning_organisation.absorbing_organisation.present? ? log.owning_organisation&.absorbing_organisation&.users : log.owning_organisation&.users
+                 end&.visible&.activated,
+                 if log.managing_organisation
+                   log.managing_organisation.absorbing_organisation.present? ? log.managing_organisation&.absorbing_organisation&.users : log.managing_organisation.users
+                 end&.visible&.activated,
                ].flatten
              else
-               current_user.organisation.users.visible
+               # ensure data coordinators can't assign a log to an inactive user
+               current_user.organisation.users.visible.activated
              end.uniq.compact
 
     users.each_with_object(ANSWER_OPTS.dup) do |user, hsh|
diff --git a/app/models/form/sales/questions/created_by_id.rb b/app/models/form/sales/questions/created_by_id.rb
index 516afd2bc..500873138 100644
--- a/app/models/form/sales/questions/created_by_id.rb
+++ b/app/models/form/sales/questions/created_by_id.rb
@@ -19,13 +19,13 @@ class Form::Sales::Questions::CreatedById < ::Form::Question
     users = []
     users += if current_user.support?
                [
-                 (
-                   if log.managing_organisation
-                     log.managing_organisation.absorbing_organisation.present? ? log.managing_organisation&.absorbing_organisation&.users&.visible : log.managing_organisation.users.visible
-                   end),
+                 if log.managing_organisation
+                   log.managing_organisation.absorbing_organisation.present? ? log.managing_organisation&.absorbing_organisation&.users : log.managing_organisation.users
+                 end&.visible&.activated,
                ].flatten
              else
-               log.managing_organisation.users.visible
+               # ensure data coordinators can't assign a log to an inactive user
+               log.managing_organisation.users.visible.activated
              end.uniq.compact
     users.each_with_object(ANSWER_OPTS.dup) do |user, hsh|
       hsh[user.id] = present_user(user)
diff --git a/app/models/user.rb b/app/models/user.rb
index 1733aeb7d..f10c9456a 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -83,6 +83,8 @@ class User < ApplicationRecord
   }
   scope :not_signed_in, -> { where(last_sign_in_at: nil, active: true) }
   scope :deactivated, -> { where(active: false) }
+  scope :activated, -> { where(active: true) }
+  # in some cases we only count the user as active if they completed the onboarding flow and signed in, rather than just being added
   scope :active_status, -> { where(active: true).where.not(last_sign_in_at: nil) }
   scope :visible, lambda { |user = nil|
     if user && !user.support?
diff --git a/spec/models/form/lettings/questions/created_by_id_spec.rb b/spec/models/form/lettings/questions/created_by_id_spec.rb
index 1cae12396..75736ab44 100644
--- a/spec/models/form/lettings/questions/created_by_id_spec.rb
+++ b/spec/models/form/lettings/questions/created_by_id_spec.rb
@@ -59,6 +59,17 @@ RSpec.describe Form::Lettings::Questions::CreatedById, type: :model do
           expect(question.displayed_answer_options(lettings_log, support_user)).to eq(expected_option_for_users(managing_org_user.organisation.users.visible + owning_org_user.organisation.users.visible))
         end
       end
+
+      context "when organisation has inactive users" do
+        before do
+          create(:user, name: "Inactive user", active: false, organisation: owning_org_user.organisation)
+          create(:user, name: "Inactive managing user", active: false, organisation: managing_org_user.organisation)
+        end
+
+        it "does not display inactive users" do
+          expect(question.displayed_answer_options(lettings_log, support_user)).to eq(expected_option_for_users(managing_org_user.organisation.users.visible.activated + owning_org_user.organisation.users.visible.activated))
+        end
+      end
     end
   end
 
@@ -86,6 +97,16 @@ RSpec.describe Form::Lettings::Questions::CreatedById, type: :model do
           expect(question.displayed_answer_options(lettings_log, data_coordinator)).to eq(expected_option_for_users(data_coordinator.organisation.users.visible))
         end
       end
+
+      context "when organisation has inactive users" do
+        before do
+          create(:user, name: "Inactive user", active: false, organisation: data_coordinator.organisation)
+        end
+
+        it "does not display inactive users" do
+          expect(question.displayed_answer_options(lettings_log, data_coordinator)).to eq(expected_option_for_users(data_coordinator.organisation.users.visible.activated))
+        end
+      end
     end
   end
 end
diff --git a/spec/models/form/sales/questions/created_by_id_spec.rb b/spec/models/form/sales/questions/created_by_id_spec.rb
index 0c21a21c8..0ae984da4 100644
--- a/spec/models/form/sales/questions/created_by_id_spec.rb
+++ b/spec/models/form/sales/questions/created_by_id_spec.rb
@@ -55,6 +55,16 @@ RSpec.describe Form::Sales::Questions::CreatedById, type: :model do
           expect(question.displayed_answer_options(sales_log, support_user)).to eq(expected_option_for_users(owning_org_user.organisation.users.visible))
         end
       end
+
+      context "when organisation has inactive users" do
+        before do
+          create(:user, name: "Inactive user", active: false, organisation: owning_org_user.organisation)
+        end
+
+        it "does not display inactive users" do
+          expect(question.displayed_answer_options(sales_log, support_user)).to eq(expected_option_for_users(owning_org_user.organisation.users.visible.activated))
+        end
+      end
     end
   end
 
@@ -86,6 +96,16 @@ RSpec.describe Form::Sales::Questions::CreatedById, type: :model do
           expect(question.displayed_answer_options(sales_log, data_coordinator)).to eq(expected_option_for_users(owning_org_user.organisation.users.visible))
         end
       end
+
+      context "when organisation has inactive users" do
+        before do
+          create(:user, name: "Inactive user", active: false, organisation: data_coordinator.organisation)
+        end
+
+        it "does not display deleted users" do
+          expect(question.displayed_answer_options(sales_log, data_coordinator)).to eq(expected_option_for_users(owning_org_user.organisation.users.visible.activated))
+        end
+      end
     end
   end
 end