diff --git a/app/models/form.rb b/app/models/form.rb
index fdcae1801..68ed95fd8 100644
--- a/app/models/form.rb
+++ b/app/models/form.rb
@@ -39,9 +39,9 @@ class Form
       @pages = subsections.flat_map(&:pages)
       @questions = pages.flat_map(&:questions)
       @start_date = Time.iso8601(form_definition["start_date"])
-      @new_logs_end_date = Time.zone.local(@start_date.year + 1, 11, 1)
+      @new_logs_end_date = Time.zone.local(@start_date.year + 1, 12, 31)
       @submission_deadline = Time.zone.local(@start_date.year + 1, 6, 9)
-      @edit_end_date = Time.zone.local(@start_date.year + 1, 11, 1)
+      @edit_end_date = Time.zone.local(@start_date.year + 1, 12, 31)
       @unresolved_log_redirect_page_id = form_definition["unresolved_log_redirect_page_id"]
     end
     @name = "#{start_date.year}_#{new_logs_end_date.year}_#{type}"
diff --git a/spec/requests/lettings_logs_controller_spec.rb b/spec/requests/lettings_logs_controller_spec.rb
index c716f0ded..6844ad6b4 100644
--- a/spec/requests/lettings_logs_controller_spec.rb
+++ b/spec/requests/lettings_logs_controller_spec.rb
@@ -1036,7 +1036,7 @@ RSpec.describe LettingsLogsController, type: :request do
               completed_lettings_log.reload
 
               get "/lettings-logs/#{completed_lettings_log.id}", headers:, params: {}
-              expect(completed_lettings_log.form.new_logs_end_date).to eq(Time.zone.local(2022, 11, 1))
+              expect(completed_lettings_log.form.new_logs_end_date).to eq(Time.zone.local(2022, 12, 31))
               expect(completed_lettings_log.status).to eq("completed")
               expect(page).to have_link("review and make changes to this log", href: "/lettings-logs/#{completed_lettings_log.id}/review")
             end
@@ -1074,7 +1074,7 @@ RSpec.describe LettingsLogsController, type: :request do
 
             it "displays a closed collection window message for previous collection year logs" do
               get "/lettings-logs/#{completed_lettings_log.id}", headers:, params: {}
-              expect(completed_lettings_log.form.new_logs_end_date).to eq(Time.zone.local(2022, 11, 1))
+              expect(completed_lettings_log.form.new_logs_end_date).to eq(Time.zone.local(2022, 12, 31))
               expect(completed_lettings_log.status).to eq("completed")
               follow_redirect!
               expect(page).to have_content("This log is from the 2021/2022 collection window, which is now closed.")