diff --git a/app/models/form/sales/questions/staircase.rb b/app/models/form/sales/questions/staircase.rb
index 6c98397ff..d61456a8e 100644
--- a/app/models/form/sales/questions/staircase.rb
+++ b/app/models/form/sales/questions/staircase.rb
@@ -2,7 +2,7 @@ class Form::Sales::Questions::Staircase < ::Form::Question
   def initialize(id, hsh, page)
     super
     @id = "staircase"
-    @copy_key = "sales.#{page.subsection.id}.staircasing"
+    @copy_key = "sales.#{page.subsection.copy_key}.staircasing"
     @type = "radio"
     @question_number = QUESTION_NUMBER_FROM_YEAR[form.start_date.year] || QUESTION_NUMBER_FROM_YEAR[QUESTION_NUMBER_FROM_YEAR.keys.max]
   end
diff --git a/app/models/form/sales/subsections/shared_ownership_scheme.rb b/app/models/form/sales/subsections/shared_ownership_scheme.rb
index 455755e31..f5d52153e 100644
--- a/app/models/form/sales/subsections/shared_ownership_scheme.rb
+++ b/app/models/form/sales/subsections/shared_ownership_scheme.rb
@@ -4,6 +4,7 @@ class Form::Sales::Subsections::SharedOwnershipScheme < ::Form::Subsection
     @id = "shared_ownership_scheme"
     @label = "Shared ownership scheme"
     @depends_on = [{ "ownershipsch" => 1, "setup_completed?" => true }]
+    @copy_key = "sale_information"
   end
 
   def pages
diff --git a/app/models/form/subsection.rb b/app/models/form/subsection.rb
index 25a473e98..3b74e29a5 100644
--- a/app/models/form/subsection.rb
+++ b/app/models/form/subsection.rb
@@ -14,6 +14,10 @@ class Form::Subsection
 
   delegate :form, to: :section
 
+  def copy_key
+    @copy_key ||= @id
+  end
+
   def questions
     @questions ||= pages.flat_map(&:questions)
   end
diff --git a/spec/models/form/sales/pages/staircase_spec.rb b/spec/models/form/sales/pages/staircase_spec.rb
index 3c26181c2..6ce969ec2 100644
--- a/spec/models/form/sales/pages/staircase_spec.rb
+++ b/spec/models/form/sales/pages/staircase_spec.rb
@@ -8,7 +8,7 @@ RSpec.describe Form::Sales::Pages::Staircase, type: :model do
   let(:subsection) { instance_double(Form::Subsection, form: instance_double(Form, start_date: Time.zone.local(2023, 4, 1))) }
 
   context "when start year is 2024" do
-    let(:subsection) { instance_double(Form::Subsection, form: instance_double(Form, start_date: Time.zone.local(2023, 4, 1)), id: "sale_information") }
+    let(:subsection) { instance_double(Form::Subsection, form: instance_double(Form, start_date: Time.zone.local(2023, 4, 1)), id: "shared_ownership_scheme", copy_key: "sale_information") }
 
     before do
       allow(subsection.form).to receive(:start_year_2025_or_later?).and_return(false)
@@ -32,7 +32,7 @@ RSpec.describe Form::Sales::Pages::Staircase, type: :model do
   end
 
   context "when start year is >= 2025" do
-    let(:subsection) { instance_double(Form::Subsection, form: instance_double(Form, start_date: Time.zone.local(2023, 4, 1)), id: "setup") }
+    let(:subsection) { instance_double(Form::Subsection, form: instance_double(Form, start_date: Time.zone.local(2023, 4, 1)), id: "setup", copy_key: "setup") }
 
     before do
       allow(subsection.form).to receive(:start_year_2025_or_later?).and_return(true)
diff --git a/spec/models/form/sales/questions/staircase_spec.rb b/spec/models/form/sales/questions/staircase_spec.rb
index 29ba34d31..c9a9f44d8 100644
--- a/spec/models/form/sales/questions/staircase_spec.rb
+++ b/spec/models/form/sales/questions/staircase_spec.rb
@@ -7,7 +7,7 @@ RSpec.describe Form::Sales::Questions::Staircase, type: :model do
   let(:question_definition) { nil }
 
   context "when start year is 2024" do
-    let(:page) { instance_double(Form::Page, subsection: instance_double(Form::Subsection, form: instance_double(Form, start_date: Time.zone.local(2024, 4, 1)), id: "sale_information")) }
+    let(:page) { instance_double(Form::Page, subsection: instance_double(Form::Subsection, form: instance_double(Form, start_date: Time.zone.local(2024, 4, 1)), id: "shared_ownership_scheme", copy_key: "sale_information")) }
 
     before do
       allow(page.subsection.form).to receive(:start_year_2025_or_later?).and_return(false)
@@ -43,7 +43,7 @@ RSpec.describe Form::Sales::Questions::Staircase, type: :model do
   end
 
   context "when start year is 2025" do
-    let(:page) { instance_double(Form::Page, subsection: instance_double(Form::Subsection, form: instance_double(Form, start_date: Time.zone.local(2025, 4, 1)), id: "setup")) }
+    let(:page) { instance_double(Form::Page, subsection: instance_double(Form::Subsection, form: instance_double(Form, start_date: Time.zone.local(2025, 4, 1)), id: "setup", copy_key: "setup")) }
 
     before do
       allow(page.subsection.form).to receive(:start_year_2025_or_later?).and_return(true)