diff --git a/app/models/form/lettings/questions/lead_tenant_sex_registered_at_birth.rb b/app/models/form/lettings/questions/lead_tenant_sex_registered_at_birth.rb
index 2e8523f51..33713e41e 100644
--- a/app/models/form/lettings/questions/lead_tenant_sex_registered_at_birth.rb
+++ b/app/models/form/lettings/questions/lead_tenant_sex_registered_at_birth.rb
@@ -5,6 +5,12 @@ class Form::Lettings::Questions::LeadTenantSexRegisteredAtBirth < ::Form::Questi
     @type = "radio"
     @check_answers_card_number = 1
     @answer_options = ANSWER_OPTIONS
+    @inferred_check_answers_value = [{
+      "condition" => {
+        @id => "R",
+      },
+      "value" => "Prefers not to say",
+    }]
     @question_number = QUESTION_NUMBER_FROM_YEAR[form.start_date.year]
   end
 
diff --git a/app/models/form/lettings/questions/person_sex_registered_at_birth.rb b/app/models/form/lettings/questions/person_sex_registered_at_birth.rb
index b549885b1..3ea89ab26 100644
--- a/app/models/form/lettings/questions/person_sex_registered_at_birth.rb
+++ b/app/models/form/lettings/questions/person_sex_registered_at_birth.rb
@@ -6,6 +6,12 @@ class Form::Lettings::Questions::PersonSexRegisteredAtBirth < ::Form::Question
     @answer_options = ANSWER_OPTIONS
     @person_index = person_index
     @question_number = question_number
+    @inferred_check_answers_value = [{
+      "condition" => {
+        id => "R",
+      },
+      "value" => "Prefers not to say",
+    }]
   end
 
   ANSWER_OPTIONS = {
diff --git a/spec/models/form/lettings/questions/lead_tenant_sex_registered_at_birth_spec.rb b/spec/models/form/lettings/questions/lead_tenant_sex_registered_at_birth_spec.rb
index bdac0ddf9..ab778ece0 100644
--- a/spec/models/form/lettings/questions/lead_tenant_sex_registered_at_birth_spec.rb
+++ b/spec/models/form/lettings/questions/lead_tenant_sex_registered_at_birth_spec.rb
@@ -44,7 +44,7 @@ RSpec.describe Form::Lettings::Questions::LeadTenantSexRegisteredAtBirth, type:
   end
 
   it "has the correct inferred_check_answers_value" do
-    expect(question.inferred_check_answers_value).to be_nil
+    expect(question.inferred_check_answers_value).to eq([{ "condition" => { "sexrab1" => "R" }, "value" => "Prefers not to say" }])
   end
 
   it "has the correct question number" do
diff --git a/spec/models/form/lettings/questions/person_sex_registered_at_birth_spec.rb b/spec/models/form/lettings/questions/person_sex_registered_at_birth_spec.rb
index 90f48cfda..904814640 100644
--- a/spec/models/form/lettings/questions/person_sex_registered_at_birth_spec.rb
+++ b/spec/models/form/lettings/questions/person_sex_registered_at_birth_spec.rb
@@ -49,7 +49,7 @@ RSpec.describe Form::Lettings::Questions::PersonSexRegisteredAtBirth, type: :mod
     end
 
     it "has the correct inferred_check_answers_value" do
-      expect(question.inferred_check_answers_value).to be_nil
+      expect(question.inferred_check_answers_value).to eq([{ "condition" => { "sexrab2" => "R" }, "value" => "Prefers not to say" }])
     end
 
     it "has the correct question number" do
@@ -70,7 +70,7 @@ RSpec.describe Form::Lettings::Questions::PersonSexRegisteredAtBirth, type: :mod
     end
 
     it "has the correct inferred_check_answers_value" do
-      expect(question.inferred_check_answers_value).to be_nil
+      expect(question.inferred_check_answers_value).to eq([{ "condition" => { "sexrab3" => "R" }, "value" => "Prefers not to say" }])
     end
 
     it "has the correct question number" do
@@ -91,7 +91,7 @@ RSpec.describe Form::Lettings::Questions::PersonSexRegisteredAtBirth, type: :mod
     end
 
     it "has the correct inferred_check_answers_value" do
-      expect(question.inferred_check_answers_value).to be_nil
+      expect(question.inferred_check_answers_value).to eq([{ "condition" => { "sexrab4" => "R" }, "value" => "Prefers not to say" }])
     end
 
     it "has the correct question number" do
@@ -112,7 +112,7 @@ RSpec.describe Form::Lettings::Questions::PersonSexRegisteredAtBirth, type: :mod
     end
 
     it "has the correct inferred_check_answers_value" do
-      expect(question.inferred_check_answers_value).to be_nil
+      expect(question.inferred_check_answers_value).to eq([{ "condition" => { "sexrab5" => "R" }, "value" => "Prefers not to say" }])
     end
 
     it "has the correct question number" do
@@ -133,7 +133,7 @@ RSpec.describe Form::Lettings::Questions::PersonSexRegisteredAtBirth, type: :mod
     end
 
     it "has the correct inferred_check_answers_value" do
-      expect(question.inferred_check_answers_value).to be_nil
+      expect(question.inferred_check_answers_value).to eq([{ "condition" => { "sexrab6" => "R" }, "value" => "Prefers not to say" }])
     end
 
     it "has the correct question number" do
@@ -154,7 +154,7 @@ RSpec.describe Form::Lettings::Questions::PersonSexRegisteredAtBirth, type: :mod
     end
 
     it "has the correct inferred_check_answers_value" do
-      expect(question.inferred_check_answers_value).to be_nil
+      expect(question.inferred_check_answers_value).to eq([{ "condition" => { "sexrab7" => "R" }, "value" => "Prefers not to say" }])
     end
 
     it "has the correct question number" do
@@ -175,7 +175,7 @@ RSpec.describe Form::Lettings::Questions::PersonSexRegisteredAtBirth, type: :mod
     end
 
     it "has the correct inferred_check_answers_value" do
-      expect(question.inferred_check_answers_value).to be_nil
+      expect(question.inferred_check_answers_value).to eq([{ "condition" => { "sexrab8" => "R" }, "value" => "Prefers not to say" }])
     end
 
     it "has the correct question number" do