diff --git a/app/services/bulk_upload/sales/year2024/row_parser.rb b/app/services/bulk_upload/sales/year2024/row_parser.rb
index 7a1481300..53a88a638 100644
--- a/app/services/bulk_upload/sales/year2024/row_parser.rb
+++ b/app/services/bulk_upload/sales/year2024/row_parser.rb
@@ -374,6 +374,15 @@ class BulkUpload::Sales::Year2024::RowParser
             },
             on: :after_log
 
+  validates :field_116,
+            numericality: {
+              message: I18n.t("validations.range", question: "Percentage discount", min: "0%", max: "70%"),
+              greater_than_or_equal_to: 0,
+              less_than_or_equal_to: 70,
+              if: :discounted_ownership?,
+            },
+            on: :before_log
+
   validates :field_11,
             inclusion: {
               in: [10, 12],
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 8612e0367..fdd34ccff 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -211,6 +211,7 @@ en:
         already_added: "You have already added this managing agent"
       merged: "That organisation has already been merged. Select a different organisation."
     not_answered: "You must answer %{question}"
+    range: "%{question} should be between %{min} and %{max}"
     invalid_option: "Enter a valid value for %{question}"
     invalid_number: "Enter a number for %{question}"
     no_address_found: "We could not find this address. Edit the address data or fix this error on the CORE site."
diff --git a/spec/services/bulk_upload/sales/year2024/row_parser_spec.rb b/spec/services/bulk_upload/sales/year2024/row_parser_spec.rb
index ce81300b5..f75c62463 100644
--- a/spec/services/bulk_upload/sales/year2024/row_parser_spec.rb
+++ b/spec/services/bulk_upload/sales/year2024/row_parser_spec.rb
@@ -725,6 +725,24 @@ RSpec.describe BulkUpload::Sales::Year2024::RowParser do
       end
     end
 
+    describe "#field_116" do # percentage discount
+      context "when percentage discount over 70" do
+        let(:attributes) { valid_attributes.merge({ field_8: "2", field_116: "71" }) }
+
+        it "returns correct error" do
+          expect(parser.errors.where(:field_116).map(&:message)).to include("Percentage discount should be between 0% and 70%")
+        end
+      end
+
+      context "when percentage discount not over 70" do
+        let(:attributes) { valid_attributes.merge({ field_8: "2", field_116: "70" }) }
+
+        it "does not return error" do
+          expect(parser.errors.where(:field_116)).not_to be_present
+        end
+      end
+    end
+
     describe "#field_11" do # type for outright sale
       context "when an invalid option" do
         let(:attributes) { setup_section_params.merge({ field_11: "100" }) }