diff --git a/config/locales/en.yml b/config/locales/en.yml
index 4d67291fd..8fd80f3d6 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -90,13 +90,13 @@ en:
             file:
               blank: "Select which file to upload."
               not_csv: "Your file must be in CSV format."
-              file_too_large: "File must be 10MB or less."
+              file_too_large: "File must be 10MB or less. Check your file and delete data that does not need to be uploaded."
         forms/bulk_upload_sales/upload_your_file:
           attributes:
             file:
               blank: "Select which file to upload."
               not_csv: "Your file must be in CSV format."
-              file_too_large: "File must be 10MB or less."
+              file_too_large: "File must be 10MB or less. Check your file and delete data that does not need to be uploaded."
         forms/bulk_upload_lettings/needstype:
           attributes:
             needstype:
diff --git a/spec/features/bulk_upload_lettings_logs_spec.rb b/spec/features/bulk_upload_lettings_logs_spec.rb
index d81a59e48..b3e403cbf 100644
--- a/spec/features/bulk_upload_lettings_logs_spec.rb
+++ b/spec/features/bulk_upload_lettings_logs_spec.rb
@@ -91,7 +91,7 @@ RSpec.describe "Bulk upload lettings log" do
       attach_file "file", file_fixture("2023_24_lettings_bulk_upload.xlsx")
       click_button("Upload")
 
-      expect(page).to have_content("File must be 10MB or less")
+      expect(page).to have_content("File must be 10MB or less. Check your file and delete data that does not need to be uploaded.")
     end
   end
   # rubocop:enable RSpec/AnyInstance
diff --git a/spec/features/bulk_upload_sales_logs_spec.rb b/spec/features/bulk_upload_sales_logs_spec.rb
index f8c37e0a0..b32df43e1 100644
--- a/spec/features/bulk_upload_sales_logs_spec.rb
+++ b/spec/features/bulk_upload_sales_logs_spec.rb
@@ -89,7 +89,7 @@ RSpec.describe "Bulk upload sales log" do
       attach_file "file", file_fixture("2023_24_lettings_bulk_upload.xlsx")
       click_button("Upload")
 
-      expect(page).to have_content("File must be 10MB or less")
+      expect(page).to have_content("File must be 10MB or less. Check your file and delete data that does not need to be uploaded.")
     end
   end
   # rubocop:enable RSpec/AnyInstance