diff --git a/app/helpers/bulk_upload/lettings_log_to_csv.rb b/app/helpers/bulk_upload/lettings_log_to_csv.rb
index 11f60773f..29c7b5ec5 100644
--- a/app/helpers/bulk_upload/lettings_log_to_csv.rb
+++ b/app/helpers/bulk_upload/lettings_log_to_csv.rb
@@ -94,7 +94,6 @@ class BulkUpload::LettingsLogToCsv
   end
 
   def to_2026_row
-    # TODO: CLDC-4162: Implement when 2026 format is known
     [
       overrides[:organisation_id] || log.owning_organisation&.old_visible_id, # 1
       overrides[:managing_organisation_id] || log.managing_organisation&.old_visible_id,
diff --git a/app/services/bulk_upload/lettings/year2026/csv_parser.rb b/app/services/bulk_upload/lettings/year2026/csv_parser.rb
index d2f1ab7b1..90b009f50 100644
--- a/app/services/bulk_upload/lettings/year2026/csv_parser.rb
+++ b/app/services/bulk_upload/lettings/year2026/csv_parser.rb
@@ -3,7 +3,6 @@ require "csv"
 class BulkUpload::Lettings::Year2026::CsvParser
   include CollectionTimeHelper
 
-  # TODO: CLDC-4162: Update when 2026 format is known
   FIELDS = 147
   FORM_YEAR = 2026
 
@@ -26,8 +25,7 @@ class BulkUpload::Lettings::Year2026::CsvParser
   end
 
   def cols
-    # TODO: CLDC-4162: Update when 2026 format is known
-    @cols ||= ("A".."FA").to_a
+    @cols ||= ("A".."ER").to_a
   end
 
   def row_parsers