diff --git a/app/forms/assessor_interface/filter_form.rb b/app/forms/assessor_interface/filter_form.rb
index dedd850a85..c4c5e5b39a 100644
--- a/app/forms/assessor_interface/filter_form.rb
+++ b/app/forms/assessor_interface/filter_form.rb
@@ -10,7 +10,7 @@ class AssessorInterface::FilterForm
                 :location,
                 :name,
                 :reference,
-                :statuses,
+                :stage,
                 :submitted_at_after,
                 :submitted_at_before
 end
diff --git a/app/view_objects/assessor_interface/application_forms_index_view_object.rb b/app/view_objects/assessor_interface/application_forms_index_view_object.rb
index 595f6e861b..4aa7ad551a 100644
--- a/app/view_objects/assessor_interface/application_forms_index_view_object.rb
+++ b/app/view_objects/assessor_interface/application_forms_index_view_object.rb
@@ -39,48 +39,29 @@ def action_required_by_filter_options
     end
   end
 
-  def status_filter_options
-    STATUS_FILTER_OPTIONS.each_with_object({}) do |(status, substatuses), memo|
-      memo[status_filter_entry(status)] = substatuses.map do |sub_status|
-        status_filter_entry(status, sub_status)
-      end
-    end
+  def stage_filter_options
+    STAGE_FILTER_OPTIONS.map { |name| stage_filter_entry(name) }
   end
 
   private
 
   ACTION_REQUIRED_BY_OPTIONS = %w[admin assessor external].freeze
 
-  STATUS_FILTER_OPTIONS = {
-    preliminary_check: [],
-    submitted: [],
-    assessment_in_progress: [],
-    waiting_on: %i[
-      further_information
-      professional_standing
-      qualification
-      reference
-    ],
-    received: %i[
-      further_information
-      professional_standing
-      qualification
-      reference
-    ],
-    overdue: [],
-    awarded_pending_checks: [],
-    awarded: [],
-    declined: [],
-    potential_duplicate_in_dqt: [],
-    withdrawn: [],
-  }.freeze
+  STAGE_FILTER_OPTIONS = %w[
+    pre_assessment
+    not_started
+    assessment
+    verification
+    review
+    completed
+  ].freeze
 
   def filter_params
     (session[:filter_params] || {}).with_indifferent_access
   end
 
-  def application_forms_without_action_required_by_filter
-    @application_forms_without_action_required_by_filter ||=
+  def application_forms_without_counted_filters
+    @application_forms_without_counted_filters ||=
       begin
         filters = [
           ::Filters::Assessor,
@@ -96,19 +77,15 @@ def application_forms_without_action_required_by_filter
       end
   end
 
-  def application_forms_without_status_filter
-    @application_forms_without_status_filter ||=
-      ::Filters::ActionRequiredBy.apply(
-        scope: application_forms_without_action_required_by_filter,
-        params: filter_params,
-      )
-  end
-
   def application_forms_with_pagy
     @application_forms_with_pagy ||=
       pagy(
-        ::Filters::Status.apply(
-          scope: application_forms_without_status_filter,
+        ::Filters::Stage.apply(
+          scope:
+            ::Filters::ActionRequiredBy.apply(
+              scope: application_forms_without_counted_filters,
+              params: filter_params,
+            ),
           params: filter_params,
         ).order(submitted_at: :asc),
       )
@@ -116,9 +93,13 @@ def application_forms_with_pagy
 
   def action_required_by_filter_counts
     @action_required_by_filter_counts ||=
-      application_forms_without_action_required_by_filter.group(
-        :action_required_by,
-      ).count
+      ::Filters::Stage
+        .apply(
+          scope: application_forms_without_counted_filters,
+          params: filter_params,
+        )
+        .group(:action_required_by)
+        .count
   end
 
   def action_required_by_filter_entry(name)
@@ -129,52 +110,28 @@ def action_required_by_filter_entry(name)
     )
   end
 
-  def status_filter_counts
-    @status_filter_counts ||=
-      begin
-        all_options =
-          STATUS_FILTER_OPTIONS.each_with_object(
-            {},
-          ) do |(status, substatuses), memo|
-            memo[status.to_s] = nil
-
-            substatuses.each do |substatus|
-              memo["#{status}_#{substatus}"] = status.to_s
-            end
-          end
-
-        table = ApplicationForm.arel_table
-
-        counts =
-          all_options.filter_map do |status, parent_status|
-            if parent_status.present?
-              Arel.star.count.filter(
-                table[:status].eq(parent_status).and(table[status].eq(true)),
-              )
-            else
-              Arel.star.count.filter(table[:status].eq(status))
-            end
-          end
-
-        results = application_forms_without_status_filter.pick(*counts)
-
-        Hash[all_options.keys.zip(results)]
-      end
+  def stage_filter_counts
+    @stage_filter_counts ||=
+      ::Filters::ActionRequiredBy
+        .apply(
+          scope: application_forms_without_counted_filters,
+          params: filter_params,
+        )
+        .group(:stage)
+        .count
   end
 
-  def status_filter_entry(*status_path)
-    name = status_path.join("_")
-
+  def stage_filter_entry(name)
     readable_name =
       I18n.t(
-        status_path.last,
+        name,
         scope: %i[components status_tag],
-        default: status_path.last.to_s.humanize,
+        default: name.to_s.humanize,
       )
 
     OpenStruct.new(
       id: name,
-      label: "#{readable_name} (#{status_filter_counts.fetch(name, 0)})",
+      label: "#{readable_name} (#{stage_filter_counts.fetch(name, 0)})",
     )
   end
 
diff --git a/app/views/assessor_interface/application_forms/index.html.erb b/app/views/assessor_interface/application_forms/index.html.erb
index 8034d3d1da..52a5b2ad48 100644
--- a/app/views/assessor_interface/application_forms/index.html.erb
+++ b/app/views/assessor_interface/application_forms/index.html.erb
@@ -56,22 +56,10 @@
       <% end %>
     </section>
 
-    <section id="app-applications-filters-status">
-      <%= f.govuk_check_boxes_fieldset :statuses, legend: { size: "s" }, small: true do %>
-        <% @view_object.status_filter_options.each do |option, suboptions| %>
-          <% if suboptions.present? %>
-            <div class="govuk-checkboxes__item govuk-!-padding-left-0 govuk-!-margin-top-1 govuk-!-margin-bottom-1">
-              <span class="govuk-label"><%= option.label %></span>
-            </div>
-
-            <div class="govuk-!-margin-left-4">
-              <% suboptions.each do |option| %>
-                <%= f.govuk_check_box :statuses, option.id, label: { text: option.label }, checked: @view_object.filter_form.statuses&.include?(option.id) %>
-              <% end %>
-            </div>
-          <% else %>
-            <%= f.govuk_check_box :statuses, option.id, label: { text: option.label }, checked: @view_object.filter_form.statuses&.include?(option.id) %>
-          <% end %>
+    <section id="app-applications-filters-stage">
+      <%= f.govuk_check_boxes_fieldset :stage, legend: { size: "s" }, small: true do %>
+        <% @view_object.stage_filter_options.each do |option| %>
+          <%= f.govuk_check_box :stage, option.id, label: { text: option.label }, checked: @view_object.filter_form.stage&.include?(option.id) %>
         <% end %>
       <% end %>
     </section>
diff --git a/spec/support/autoload/page_objects/assessor_interface/applications.rb b/spec/support/autoload/page_objects/assessor_interface/applications.rb
index a45c7b8491..c10461e36f 100644
--- a/spec/support/autoload/page_objects/assessor_interface/applications.rb
+++ b/spec/support/autoload/page_objects/assessor_interface/applications.rb
@@ -45,8 +45,8 @@ class Applications < SitePrism::Page
         sections :items, GovukCheckboxItem, ".govuk-checkboxes__item"
       end
 
-      section :status_filter, "#app-applications-filters-status" do
-        sections :statuses, GovukCheckboxItem, ".govuk-checkboxes__item"
+      section :stage_filter, "#app-applications-filters-stage" do
+        sections :items, GovukCheckboxItem, ".govuk-checkboxes__item"
       end
 
       sections :search_results, ".app-search-results__item" do
diff --git a/spec/system/assessor_interface/filtering_application_forms_spec.rb b/spec/system/assessor_interface/filtering_application_forms_spec.rb
index 2710466191..ae39a8af5f 100644
--- a/spec/system/assessor_interface/filtering_application_forms_spec.rb
+++ b/spec/system/assessor_interface/filtering_application_forms_spec.rb
@@ -41,8 +41,8 @@
     then_i_see_a_list_of_applications_filtered_by_action_required_by
 
     when_i_clear_the_filters
-    and_i_apply_the_status_filter
-    then_i_see_a_list_of_applications_filtered_by_state
+    and_i_apply_the_stage_filter
+    then_i_see_a_list_of_applications_filtered_by_stage
   end
 
   private
@@ -146,18 +146,18 @@ def then_i_see_a_list_of_applications_filtered_by_action_required_by
     )
   end
 
-  def and_i_apply_the_status_filter
-    awarded_state =
-      applications_page.status_filter.statuses.find do |status|
-        status.label.text == "Awarded (1)"
+  def and_i_apply_the_stage_filter
+    completed_item =
+      applications_page.stage_filter.items.find do |item|
+        item.label.text == "Completed (1)"
       rescue Capybara::ElementNotFound
         false
       end
-    awarded_state.checkbox.click
+    completed_item.checkbox.click
     applications_page.apply_filters.click
   end
 
-  def then_i_see_a_list_of_applications_filtered_by_state
+  def then_i_see_a_list_of_applications_filtered_by_stage
     expect(applications_page.search_results.count).to eq(1)
     expect(applications_page.search_results.first.name.text).to eq("John Smith")
   end
diff --git a/spec/view_objects/assessor_interface/application_forms_index_view_object_spec.rb b/spec/view_objects/assessor_interface/application_forms_index_view_object_spec.rb
index d5e54faa3e..c1c8846646 100644
--- a/spec/view_objects/assessor_interface/application_forms_index_view_object_spec.rb
+++ b/spec/view_objects/assessor_interface/application_forms_index_view_object_spec.rb
@@ -71,9 +71,19 @@
         it { is_expected.to be_empty }
       end
 
-      context "with a status filter" do
+      context "with an action required by filter" do
         before do
-          expect_any_instance_of(Filters::Status).to receive(:apply).and_return(
+          expect_any_instance_of(Filters::ActionRequiredBy).to receive(
+            :apply,
+          ).and_return(ApplicationForm.none)
+        end
+
+        it { is_expected.to be_empty }
+      end
+
+      context "with a stage filter" do
+        before do
+          expect_any_instance_of(Filters::Stage).to receive(:apply).and_return(
             ApplicationForm.none,
           )
         end
@@ -150,150 +160,42 @@
     end
   end
 
-  describe "#status_filter_options" do
-    subject(:status_filter_options) { view_object.status_filter_options }
+  describe "#stage_filter_options" do
+    subject(:stage_filter_options) { view_object.stage_filter_options }
 
     it do
       is_expected.to eq(
-        {
-          OpenStruct.new(
-            id: "preliminary_check",
-            label: "Preliminary check (0)",
-          ) => [],
-          OpenStruct.new(id: "submitted", label: "Not started (0)") => [],
-          OpenStruct.new(
-            id: "assessment_in_progress",
-            label: "Assessment in progress (0)",
-          ) => [],
-          OpenStruct.new(id: "waiting_on", label: "Waiting on (0)") => [
-            OpenStruct.new(
-              id: "waiting_on_further_information",
-              label: "Further information (0)",
-            ),
-            OpenStruct.new(
-              id: "waiting_on_professional_standing",
-              label: "Professional standing (0)",
-            ),
-            OpenStruct.new(
-              id: "waiting_on_qualification",
-              label: "Qualification (0)",
-            ),
-            OpenStruct.new(id: "waiting_on_reference", label: "Reference (0)"),
-          ],
-          OpenStruct.new(id: "received", label: "Received (0)") => [
-            OpenStruct.new(
-              id: "received_further_information",
-              label: "Further information (0)",
-            ),
-            OpenStruct.new(
-              id: "received_professional_standing",
-              label: "Professional standing (0)",
-            ),
-            OpenStruct.new(
-              id: "received_qualification",
-              label: "Qualification (0)",
-            ),
-            OpenStruct.new(id: "received_reference", label: "Reference (0)"),
-          ],
-          OpenStruct.new(id: "overdue", label: "Overdue (0)") => [],
-          OpenStruct.new(
-            id: "awarded_pending_checks",
-            label: "Award pending (0)",
-          ) => [],
-          OpenStruct.new(id: "awarded", label: "Awarded (0)") => [],
-          OpenStruct.new(id: "declined", label: "Declined (0)") => [],
-          OpenStruct.new(
-            id: "potential_duplicate_in_dqt",
-            label: "Potential duplication in DQT (0)",
-          ) => [],
-          OpenStruct.new(id: "withdrawn", label: "Withdrawn (0)") => [],
-        },
+        [
+          OpenStruct.new(id: "pre_assessment", label: "Pre-assessment (0)"),
+          OpenStruct.new(id: "not_started", label: "Not started (0)"),
+          OpenStruct.new(id: "assessment", label: "Assessment (0)"),
+          OpenStruct.new(id: "verification", label: "Verification (0)"),
+          OpenStruct.new(id: "review", label: "Review (0)"),
+          OpenStruct.new(id: "completed", label: "Completed (0)"),
+        ],
       )
     end
 
     context "with application forms" do
       before do
-        create_list(:application_form, 1, :preliminary_check)
-        create_list(:application_form, 2, :submitted)
-        create_list(:application_form, 3, :assessment_in_progress)
-        create_list(
-          :application_form,
-          4,
-          :waiting_on,
-          waiting_on_further_information: true,
-        )
-        create_list(
-          :application_form,
-          5,
-          :received,
-          received_professional_standing: true,
-        )
-        create_list(:application_form, 6, :overdue, overdue_qualification: true)
-        create_list(:application_form, 7, :awarded_pending_checks)
-        create_list(:application_form, 8, :awarded)
-        create_list(:application_form, 9, :declined)
-        create_list(:application_form, 10, :potential_duplicate_in_dqt)
-        create_list(:application_form, 11, :withdrawn)
+        create_list(:application_form, 1, :submitted, :pre_assessment_stage)
+        create_list(:application_form, 2, :submitted, :not_started_stage)
+        create_list(:application_form, 3, :submitted, :assessment_stage)
+        create_list(:application_form, 4, :submitted, :verification_stage)
+        create_list(:application_form, 5, :submitted, :review_stage)
+        create_list(:application_form, 6, :submitted, :completed_stage)
       end
 
       it do
         is_expected.to eq(
-          {
-            OpenStruct.new(
-              id: "preliminary_check",
-              label: "Preliminary check (1)",
-            ) => [],
-            OpenStruct.new(id: "submitted", label: "Not started (2)") => [],
-            OpenStruct.new(
-              id: "assessment_in_progress",
-              label: "Assessment in progress (3)",
-            ) => [],
-            OpenStruct.new(id: "waiting_on", label: "Waiting on (4)") => [
-              OpenStruct.new(
-                id: "waiting_on_further_information",
-                label: "Further information (4)",
-              ),
-              OpenStruct.new(
-                id: "waiting_on_professional_standing",
-                label: "Professional standing (0)",
-              ),
-              OpenStruct.new(
-                id: "waiting_on_qualification",
-                label: "Qualification (0)",
-              ),
-              OpenStruct.new(
-                id: "waiting_on_reference",
-                label: "Reference (0)",
-              ),
-            ],
-            OpenStruct.new(id: "received", label: "Received (5)") => [
-              OpenStruct.new(
-                id: "received_further_information",
-                label: "Further information (0)",
-              ),
-              OpenStruct.new(
-                id: "received_professional_standing",
-                label: "Professional standing (5)",
-              ),
-              OpenStruct.new(
-                id: "received_qualification",
-                label: "Qualification (0)",
-              ),
-              OpenStruct.new(id: "received_reference", label: "Reference (0)"),
-            ],
-            OpenStruct.new(id: "overdue", label: "Overdue (6)") => [],
-            OpenStruct.new(
-              id: "awarded_pending_checks",
-              label: "Award pending (7)",
-            ) => [],
-            OpenStruct.new(id: "awarded", label: "Awarded (8)") => [],
-            OpenStruct.new(id: "declined", label: "Declined (9)") => [],
-            OpenStruct.new(
-              id: "potential_duplicate_in_dqt",
-              label: "Potential duplication in DQT (10)",
-            ) => [],
-            OpenStruct.new(id: "withdrawn", label: "Withdrawn (11)") => [],
-          },
+          [
+            OpenStruct.new(id: "pre_assessment", label: "Pre-assessment (1)"),
+            OpenStruct.new(id: "not_started", label: "Not started (2)"),
+            OpenStruct.new(id: "assessment", label: "Assessment (3)"),
+            OpenStruct.new(id: "verification", label: "Verification (4)"),
+            OpenStruct.new(id: "review", label: "Review (5)"),
+            OpenStruct.new(id: "completed", label: "Completed (6)"),
+          ],
         )
       end
     end