diff --git a/spec/fixtures/files/sales_logs_csv_export_codes_26.csv b/spec/fixtures/files/sales_logs_csv_export_codes_26.csv
new file mode 100644
index 000000000..1e5582248
--- /dev/null
+++ b/spec/fixtures/files/sales_logs_csv_export_codes_26.csv
@@ -0,0 +1,3 @@
+,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
+id,status,duplicate_set_id,created_at,updated_at,collection_start_year,creation_method,bulk_upload_id,is_dpo,day,month,year,purchid,ownershipsch,type,staircase,jointpur,jointmore,noint,privacynotice,uprn,address_line1,address_line2,town_or_city,county,pcode1,pcode2,la,la_label,proptype,buildheightclass,beds,builtype,wchair,age1,sexrab1,sex1,ethnic_group,ethnic,nationality_all,ecstat1,buy1livein,relat2,age2,sexrab2,sex2,ethnic_group2,ethnicbuy2,nationality_all_buyer2,ecstat2,buy2livein,hholdcount,relat3,age3,sexrab3,sex3,ecstat3,relat4,age4,sexrab4,sex4,ecstat4,relat5,age5,sexrab5,sex5,ecstat5,relat6,age6,sexrab6,sex6,ecstat6,prevten,ppcodenk,ppostc1,ppostc2,previous_la_known,prevloc,prevloc_label,buy2living,prevtenbuy2,hhregres,hhregresstill,armedforcesspouse,disabled,wheel,income1nk,income1,inc1mort,income2nk,income2,inc2mort,hb,savingsnk,savings,prevown,prevshared,resale,proplen,hoday,homonth,hoyear,frombeds,fromprop,socprevten,value,equity,mortgageused,mortgage,mortlen,deposit,cashdis,mrent,stairbought,stairowned,staircasesale,firststair,numstair,lasttransaction,initialpurchase,mrentprestaircasing
+132,in_progress,,2026-05-01T00:00:00+01:00,2026-05-01T00:00:00+01:00,2026,1,,true,1,5,2026,,2,8,,1,1,2,1,1,"1, Test Street",,Test Town,,,,E09000033,Westminster,1,2,2,1,1,30,F,X,17,17,,1,1,P,35,F,X,17,,,1,1,3,X,14,M,X,9,X,-9,M,X,3,R,-9,R,R,10,,,,,,1,1,,,0,,,3,,1,4,5,1,1,0,13400,1,0,13400,1,4,1,,1,2,,10,,,,,,,110000.0,,1,20000.0,10,80000.0,,,,,,,,,,
diff --git a/spec/fixtures/files/sales_logs_csv_export_labels_26.csv b/spec/fixtures/files/sales_logs_csv_export_labels_26.csv
new file mode 100644
index 000000000..68ea4ab47
--- /dev/null
+++ b/spec/fixtures/files/sales_logs_csv_export_labels_26.csv
@@ -0,0 +1,3 @@
+,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
+id,status,duplicate_set_id,created_at,updated_at,collection_start_year,creation_method,bulk_upload_id,is_dpo,day,month,year,purchid,ownershipsch,type,staircase,jointpur,jointmore,noint,privacynotice,uprn,address_line1,address_line2,town_or_city,county,pcode1,pcode2,la,la_label,proptype,buildheightclass,beds,builtype,wchair,age1,sexrab1,sex1,ethnic_group,ethnic,nationality_all,ecstat1,buy1livein,relat2,age2,sexrab2,sex2,ethnic_group2,ethnicbuy2,nationality_all_buyer2,ecstat2,buy2livein,hholdcount,relat3,age3,sexrab3,sex3,ecstat3,relat4,age4,sexrab4,sex4,ecstat4,relat5,age5,sexrab5,sex5,ecstat5,relat6,age6,sexrab6,sex6,ecstat6,prevten,ppcodenk,ppostc1,ppostc2,previous_la_known,prevloc,prevloc_label,buy2living,prevtenbuy2,hhregres,hhregresstill,armedforcesspouse,disabled,wheel,income1nk,income1,inc1mort,income2nk,income2,inc2mort,hb,savingsnk,savings,prevown,prevshared,resale,proplen,hoday,homonth,hoyear,frombeds,fromprop,socprevten,value,equity,mortgageused,mortgage,mortlen,deposit,cashdis,mrent,stairbought,stairowned,staircasesale,firststair,numstair,lasttransaction,initialpurchase,mrentprestaircasing
+132,in_progress,,2026-05-01T00:00:00+01:00,2026-05-01T00:00:00+01:00,2026,single log,,true,1,5,2026,,Discounted Ownership,Right to Acquire (RTA),,Yes,Yes,Yes,1,1,"1, Test Street",,Test Town,,,,E09000033,Westminster,Flat or maisonette,Low-rise,2,Purpose built,Yes,30,Female,Non-binary,Buyer prefers not to say,17,,Full-time – 30 hours or more per week,Yes,Yes,35,Female,Non-binary,Buyer prefers not to say,,,Full-time – 30 hours or more per week,Yes,3,No,14,Male,Non-binary,Child under 16,No,Not known,Male,Non-binary,In government training into work,Prefers not to say,Not known,Prefers not to say,Prefers not to say,Prefers not to say,,,,,,Local authority tenant,No,,,No,,,Don’t know,,Yes,Yes,No,Yes,Yes,Yes,13400,Yes,Yes,13400,Yes,Don’t know ,No,,Yes,No,,10,,,,,,,110000.0,,Yes,20000.0,10,80000.0,,,,,,,,,,
diff --git a/spec/services/csv/sales_log_csv_service_spec.rb b/spec/services/csv/sales_log_csv_service_spec.rb
index 00fe87e98..317530843 100644
--- a/spec/services/csv/sales_log_csv_service_spec.rb
+++ b/spec/services/csv/sales_log_csv_service_spec.rb
@@ -193,6 +193,21 @@ RSpec.describe Csv::SalesLogCsvService do
       expect(la_label_value).to eq "Westminster"
     end
 
+    context "when the requested form is 2023" do
+      let(:now) { Time.zone.local(2024, 1, 1) }
+      let(:year) { 2023 }
+
+      it "exports the CSV with the 2023 ordering and all values correct" do
+        expected_content = CSV.read("spec/fixtures/files/sales_logs_csv_export_labels_23.csv")
+        values_to_delete = %w[ID]
+        values_to_delete.each do |attribute|
+          index = attribute_line.index(attribute)
+          content_line[index] = nil
+        end
+        expect(csv).to eq expected_content
+      end
+    end
+
     context "when the requested form is 2024" do
       let(:now) { Time.zone.local(2024, 5, 1) }
       let(:year) { 2024 }
@@ -233,18 +248,23 @@ RSpec.describe Csv::SalesLogCsvService do
       end
     end
 
-    context "when the requested form is 2023" do
-      let(:now) { Time.zone.local(2024, 1, 1) }
-      let(:year) { 2023 }
+    context "when the requested form is 2026" do
+      let(:now) { Time.zone.local(2026, 5, 1) }
+      let(:year) { 2026 }
+      let(:fixed_time) { Time.zone.local(2026, 5, 1) }
 
-      it "exports the CSV with the 2023 ordering and all values correct" do
-        expected_content = CSV.read("spec/fixtures/files/sales_logs_csv_export_labels_23.csv")
-        values_to_delete = %w[ID]
+      before do
+        log.update!(nationality_all: 36, manual_address_entry_selected: false, uprn: "1", uprn_known: 1, buildheightclass: 2)
+      end
+
+      it "exports the CSV with the 2026 ordering and all values correct" do
+        expected_content = CSV.read("spec/fixtures/files/sales_logs_csv_export_labels_26.csv")
+        values_to_delete = %w[ID OWNINGORGID MANINGORGID CREATEDBYID USERNAMEID AMENDEDBYID]
         values_to_delete.each do |attribute|
           index = attribute_line.index(attribute)
           content_line[index] = nil
         end
-        expect(csv).to eq expected_content
+        expect(csv[1..]).to eq expected_content[1..] # Skip the first line as it contains the definitions
       end
     end
 
@@ -301,23 +321,18 @@ RSpec.describe Csv::SalesLogCsvService do
       expect(la_label_value).to eq "Westminster"
     end
 
-    context "when the requested form is 2025" do
-      let(:now) { Time.zone.local(2025, 5, 1) }
-      let(:fixed_time) { Time.zone.local(2025, 5, 1) }
-      let(:year) { 2025 }
-
-      before do
-        log.update!(manual_address_entry_selected: false, uprn: "1", uprn_known: 1)
-      end
+    context "when the requested form is 2023" do
+      let(:now) { Time.zone.local(2024, 1, 1) }
+      let(:year) { 2023 }
 
       it "exports the CSV with all values correct" do
-        expected_content = CSV.read("spec/fixtures/files/sales_logs_csv_export_codes_25.csv")
-        values_to_delete = %w[ID OWNINGORGID MANINGORGID CREATEDBYID USERNAMEID AMENDEDBYID]
+        expected_content = CSV.read("spec/fixtures/files/sales_logs_csv_export_codes_23.csv")
+        values_to_delete = %w[ID]
         values_to_delete.each do |attribute|
           index = attribute_line.index(attribute)
           content_line[index] = nil
         end
-        expect(csv[1..]).to eq expected_content[1..] # Skip the first line as it contains the definitions
+        expect(csv).to eq expected_content
       end
     end
 
@@ -341,18 +356,43 @@ RSpec.describe Csv::SalesLogCsvService do
       end
     end
 
-    context "when the requested form is 2023" do
-      let(:now) { Time.zone.local(2024, 1, 1) }
-      let(:year) { 2023 }
+    context "when the requested form is 2025" do
+      let(:now) { Time.zone.local(2025, 5, 1) }
+      let(:fixed_time) { Time.zone.local(2025, 5, 1) }
+      let(:year) { 2025 }
+
+      before do
+        log.update!(manual_address_entry_selected: false, uprn: "1", uprn_known: 1)
+      end
 
       it "exports the CSV with all values correct" do
-        expected_content = CSV.read("spec/fixtures/files/sales_logs_csv_export_codes_23.csv")
-        values_to_delete = %w[ID]
+        expected_content = CSV.read("spec/fixtures/files/sales_logs_csv_export_codes_25.csv")
+        values_to_delete = %w[ID OWNINGORGID MANINGORGID CREATEDBYID USERNAMEID AMENDEDBYID]
         values_to_delete.each do |attribute|
           index = attribute_line.index(attribute)
           content_line[index] = nil
         end
-        expect(csv).to eq expected_content
+        expect(csv[1..]).to eq expected_content[1..] # Skip the first line as it contains the definitions
+      end
+    end
+
+    context "when the requested form is 2026" do
+      let(:now) { Time.zone.local(2026, 5, 1) }
+      let(:fixed_time) { Time.zone.local(2026, 5, 1) }
+      let(:year) { 2026 }
+
+      before do
+        log.update!(manual_address_entry_selected: false, uprn: "1", uprn_known: 1, buildheightclass: 2)
+      end
+
+      it "exports the CSV with all values correct" do
+        expected_content = CSV.read("spec/fixtures/files/sales_logs_csv_export_codes_26.csv")
+        values_to_delete = %w[ID OWNINGORGID MANINGORGID CREATEDBYID USERNAMEID AMENDEDBYID]
+        values_to_delete.each do |attribute|
+          index = attribute_line.index(attribute)
+          content_line[index] = nil
+        end
+        expect(csv[1..]).to eq expected_content[1..] # Skip the first line as it contains the definitions
       end
     end