diff --git a/app/models/validations/household_validations.rb b/app/models/validations/household_validations.rb
index 8fe940ae5..f2ffd1401 100644
--- a/app/models/validations/household_validations.rb
+++ b/app/models/validations/household_validations.rb
@@ -52,7 +52,14 @@ module Validations::HouseholdValidations
   end
 
   def validate_partner_count(record)
-    shared_validate_partner_count(record, 8)
+    return if record.form.start_year_after_2024?
+
+    partner_numbers = (2..8).select { |n| person_is_partner?(record["relat#{n}"]) }
+    if partner_numbers.count > 1
+      partner_numbers.each do |n|
+          record.errors.add "relat#{n}", I18n.t("validations.lettings.household.relat.one_partner")
+      end
+    end
   end
 
   def validate_person_1_economic(record)
diff --git a/app/models/validations/sales/household_validations.rb b/app/models/validations/sales/household_validations.rb
index fb1ea65c2..8c0705bac 100644
--- a/app/models/validations/sales/household_validations.rb
+++ b/app/models/validations/sales/household_validations.rb
@@ -2,7 +2,14 @@ module Validations::Sales::HouseholdValidations
   include Validations::SharedValidations
 
   def validate_partner_count(record)
-    shared_validate_partner_count(record, 6)
+    return if record.form.start_year_after_2024?
+
+    partner_numbers = (2..6).select { |n| person_is_partner?(record["relat#{n}"]) }
+    if partner_numbers.count > 1
+      partner_numbers.each do |n|
+        record.errors.add "relat#{n}", I18n.t("validations.sales.household.relat.one_partner")
+      end
+    end
   end
 
   def validate_buyers_living_in_property(record)
diff --git a/app/models/validations/shared_validations.rb b/app/models/validations/shared_validations.rb
index 7d824941d..ec52cfeef 100644
--- a/app/models/validations/shared_validations.rb
+++ b/app/models/validations/shared_validations.rb
@@ -88,21 +88,6 @@ module Validations::SharedValidations
     { scope: status, date: date&.to_formatted_s(:govuk_date), deactivation_date: closest_reactivation&.deactivation_date&.to_formatted_s(:govuk_date) }
   end
 
-  def shared_validate_partner_count(record, max_people)
-    return if record.form.start_year_after_2024?
-
-    partner_numbers = (2..max_people).select { |n| person_is_partner?(record["relat#{n}"]) }
-    if partner_numbers.count > 1
-      partner_numbers.each do |n|
-        if record.sales?
-          record.errors.add "relat#{n}", I18n.t("validations.sales.household.relat.one_partner")
-        else
-          record.errors.add "relat#{n}", I18n.t("validations.lettings.household.relat.one_partner")
-        end
-      end
-    end
-  end
-
   def date_valid?(question, record)
     if record[question].is_a?(ActiveSupport::TimeWithZone) && record[question].year.zero?
       record.errors.add question, I18n.t("validations.shared.date.invalid_date")