diff --git a/app/services/bulk_upload/sales/year2024/row_parser.rb b/app/services/bulk_upload/sales/year2024/row_parser.rb
index 928060dfa..488dea386 100644
--- a/app/services/bulk_upload/sales/year2024/row_parser.rb
+++ b/app/services/bulk_upload/sales/year2024/row_parser.rb
@@ -366,6 +366,15 @@ class BulkUpload::Sales::Year2024::RowParser
             },
             on: :after_log
 
+  validates :field_116,
+            numericality: {
+              message: I18n.t("validations.numeric.within_range", field: "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/spec/services/bulk_upload/sales/year2024/row_parser_spec.rb b/spec/services/bulk_upload/sales/year2024/row_parser_spec.rb
index ea0ea386e..c1014ecc3 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 +725,32 @@ 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 must 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
+
+      context "when percentage less than 0" do
+        let(:attributes) { valid_attributes.merge({ field_8: "2", field_116: "-1" }) }
+
+        it "returns correct error" do
+          expect(parser.errors.where(:field_116).map(&:message)).to include("Percentage discount must be between 0% and 70%")
+        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" }) }