diff --git a/app/controllers/bulk_upload_logs_controller.rb b/app/controllers/bulk_upload_logs_controller.rb
new file mode 100644
index 000000000..248da1927
--- /dev/null
+++ b/app/controllers/bulk_upload_logs_controller.rb
@@ -0,0 +1,37 @@
+class BulkUploadLogsController < ApplicationController
+  before_action :authenticate_user!
+
+  def start
+    if in_crossover_period?
+      redirect_to bulk_upload_path(id: "year")
+    else
+      redirect_to bulk_upload_path(id: "prepare-your-file")
+    end
+  end
+
+private
+
+  def in_crossover_period?
+    FormHandler.instance.forms.values.any?(&:in_crossover_period?)
+  end
+
+  def bulk_upload_path(id:)
+    case log_type
+    when "lettings"
+      bulk_upload_lettings_log_path(id:)
+    when "sales"
+      bulk_upload_sales_log_path(id:)
+    end
+  end
+
+  def log_type
+    case request.path.split("/")[1]
+    when "lettings-logs"
+      "lettings"
+    when "sales-logs"
+      "sales"
+    else
+      raise "Log type not handled"
+    end
+  end
+end
diff --git a/app/helpers/logs_helper.rb b/app/helpers/logs_helper.rb
new file mode 100644
index 000000000..6567f0a13
--- /dev/null
+++ b/app/helpers/logs_helper.rb
@@ -0,0 +1,21 @@
+module LogsHelper
+  def log_type_for_controller(controller)
+    case controller.class.to_s
+    when "LettingsLogsController"
+      "lettings"
+    when "SalesLogsController"
+      "sales"
+    else
+      raise "Log type not found for #{controller.class}"
+    end
+  end
+
+  def bulk_upload_path_for_controller(controller, id:)
+    case log_type_for_controller(controller)
+    when "lettings"
+      bulk_upload_lettings_log_path(id:)
+    when "sales"
+      bulk_upload_sales_log_path(id:)
+    end
+  end
+end
diff --git a/app/helpers/navigation_items_helper.rb b/app/helpers/navigation_items_helper.rb
index 07c125a8d..d996894ea 100644
--- a/app/helpers/navigation_items_helper.rb
+++ b/app/helpers/navigation_items_helper.rb
@@ -65,11 +65,11 @@ module NavigationItemsHelper
 private
 
   def lettings_logs_current?(path)
-    path == "/lettings-logs"
+    path.starts_with?("/lettings-logs")
   end
 
   def sales_logs_current?(path)
-    path == "/sales-logs"
+    path.starts_with?("/sales-logs")
   end
 
   def users_current?(path)
diff --git a/app/models/form.rb b/app/models/form.rb
index 22321f431..9d9acf2ea 100644
--- a/app/models/form.rb
+++ b/app/models/form.rb
@@ -223,4 +223,12 @@ class Form
       end
     end
   end
+
+  def in_crossover_period?(now: Time.zone.now)
+    ((end_date - 3.months) < now) && (now < end_date)
+  end
+
+  def inspect
+    "#<#{self.class} @type=#{type} @name=#{name}>"
+  end
 end
diff --git a/app/views/bulk_upload_logs/show.html.erb b/app/views/bulk_upload_logs/show.html.erb
new file mode 100644
index 000000000..7c5959ba8
--- /dev/null
+++ b/app/views/bulk_upload_logs/show.html.erb
@@ -0,0 +1 @@
+Find me in app/views/bulk_upload_logs/show.html.erb
diff --git a/app/views/logs/index.html.erb b/app/views/logs/index.html.erb
index 431ca0f45..81b4cb7c8 100644
--- a/app/views/logs/index.html.erb
+++ b/app/views/logs/index.html.erb
@@ -10,14 +10,18 @@
 <% end %>
 
 <div class="app-filter-layout" data-controller="filter-layout">
-  <div class="govuk-button-group app-filter-toggle">
+  <div class="govuk-button-group app-filter-toggle govuk-!-margin-bottom-6">
     <% if current_page?(controller: 'lettings_logs', action: 'index') %>
-      <%= govuk_button_to "Create a new lettings log", lettings_logs_path %>
+      <%= govuk_button_to "Create a new lettings log", lettings_logs_path, class: "govuk-!-margin-right-6" %>
     <% end %>
+
     <% if FeatureToggle.sales_log_enabled? && current_page?(controller: 'sales_logs', action: 'index') %>
-      <%= govuk_button_to "Create a new sales log", sales_logs_path %>
+      <%= govuk_button_to "Create a new sales log", sales_logs_path, class: "govuk-!-margin-right-6" %>
+    <% end %>
+
+    <% if FeatureToggle.bulk_upload_logs? %>
+      <%= govuk_button_link_to "Upload #{log_type_for_controller(controller)} log in bulk", bulk_upload_path_for_controller(controller, id: "start"), secondary: true %>
     <% end %>
-    <%#= govuk_link_to "Upload logs", bulk_upload_lettings_logs_path %>
   </div>
 
   <%= render partial: "log_filters" %>
diff --git a/config/initializers/feature_toggle.rb b/config/initializers/feature_toggle.rb
index 7cd75ddd3..8fc2cd7d4 100644
--- a/config/initializers/feature_toggle.rb
+++ b/config/initializers/feature_toggle.rb
@@ -22,4 +22,8 @@ class FeatureToggle
   def self.managing_for_other_user_enabled?
     !Rails.env.production?
   end
+
+  def self.bulk_upload_logs?
+    !Rails.env.production?
+  end
 end
diff --git a/config/routes.rb b/config/routes.rb
index 98d7151b1..25afcf164 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -109,6 +109,12 @@ Rails.application.routes.draw do
       get "csv-download", to: "lettings_logs#download_csv"
       post "email-csv", to: "lettings_logs#email_csv"
       get "csv-confirmation", to: "lettings_logs#csv_confirmation"
+
+      resources :bulk_upload_logs, path: "bulk-upload-logs", as: "bulk_upload_lettings_logs" do
+        collection do
+          get :start
+        end
+      end
     end
 
     member do
@@ -128,6 +134,14 @@ Rails.application.routes.draw do
   end
 
   resources :sales_logs, path: "/sales-logs" do
+    collection do
+      resources :bulk_upload_logs, path: "bulk-upload-logs", as: "bulk_upload_sales_logs" do
+        collection do
+          get :start
+        end
+      end
+    end
+
     FormHandler.instance.sales_forms.each do |_key, form|
       form.pages.map do |page|
         get page.id.to_s.dasherize, to: "form#show_page"
diff --git a/spec/models/form_spec.rb b/spec/models/form_spec.rb
index a062a4aa5..f8bcddcca 100644
--- a/spec/models/form_spec.rb
+++ b/spec/models/form_spec.rb
@@ -235,4 +235,38 @@ RSpec.describe Form, type: :model do
       expect(form.sections[1].class).to eq(Form::Sales::Sections::PropertyInformation)
     end
   end
+
+  describe "#in_crossover_period?" do
+    context "when now not specified" do
+      context "when after end period" do
+        subject(:form) { described_class.new(nil, 2022, [], "sales") }
+
+        it "returns false" do
+          Timecop.freeze(2023, 8, 1) do
+            expect(form).not_to be_in_crossover_period
+          end
+        end
+      end
+
+      context "when during crossover" do
+        subject(:form) { described_class.new(nil, 2022, [], "sales") }
+
+        it "returns true" do
+          Timecop.freeze(2023, 6, 1) do
+            expect(form).to be_in_crossover_period
+          end
+        end
+      end
+
+      context "when before crossover" do
+        subject(:form) { described_class.new(nil, 2022, [], "sales") }
+
+        it "returns false" do
+          Timecop.freeze(2023, 1, 1) do
+            expect(form).not_to be_in_crossover_period
+          end
+        end
+      end
+    end
+  end
 end
diff --git a/spec/requests/bulk_upload_logs_controller_spec.rb b/spec/requests/bulk_upload_logs_controller_spec.rb
new file mode 100644
index 000000000..411ab81e7
--- /dev/null
+++ b/spec/requests/bulk_upload_logs_controller_spec.rb
@@ -0,0 +1,54 @@
+require "rails_helper"
+
+RSpec.describe BulkUploadLogsController, type: :request do
+  let(:user) { FactoryBot.create(:user) }
+  let(:organisation) { user.organisation }
+
+  before do
+    sign_in user
+  end
+
+  describe "GET /lettings-logs/bulk-upload-logs/start" do
+    context "when not in crossover period" do
+      it "redirects to /prepare-your-file" do
+        Timecop.freeze(2023, 8, 1) do
+          get "/lettings-logs/bulk-upload-logs/start", params: {}
+
+          expect(response).to redirect_to("/lettings-logs/bulk-upload-logs/prepare-your-file")
+        end
+      end
+    end
+
+    context "when in crossover period" do
+      it "redirects to /year" do
+        Timecop.freeze(2023, 6, 1) do
+          get "/lettings-logs/bulk-upload-logs/start", params: {}
+
+          expect(response).to redirect_to("/lettings-logs/bulk-upload-logs/year")
+        end
+      end
+    end
+  end
+
+  describe "GET /sales-logs/bulk-upload-logs/start" do
+    context "when not in crossover period" do
+      it "redirects to /prepare-your-file" do
+        Timecop.freeze(2023, 8, 1) do
+          get "/sales-logs/bulk-upload-logs/start", params: {}
+
+          expect(response).to redirect_to("/sales-logs/bulk-upload-logs/prepare-your-file")
+        end
+      end
+    end
+
+    context "when in crossover period" do
+      it "redirects to /year" do
+        Timecop.freeze(2023, 6, 1) do
+          get "/sales-logs/bulk-upload-logs/start", params: {}
+
+          expect(response).to redirect_to("/sales-logs/bulk-upload-logs/year")
+        end
+      end
+    end
+  end
+end