diff --git a/erpnext/controllers/buying_controller.py b/erpnext/controllers/buying_controller.py
index ad6a49a..cf26bae 100644
--- a/erpnext/controllers/buying_controller.py
+++ b/erpnext/controllers/buying_controller.py
@@ -26,6 +26,8 @@
 		self.flags.ignore_permlevel_for_fields = ["buying_price_list", "price_list_currency"]
 
 	def validate(self):
+		self.set_rate_for_standalone_debit_note()
+
 		super(BuyingController, self).validate()
 		if getattr(self, "supplier", None) and not self.supplier_name:
 			self.supplier_name = frappe.db.get_value("Supplier", self.supplier, "supplier_name")
@@ -100,6 +102,28 @@
 						do_not_submit=True,
 					)
 
+	def set_rate_for_standalone_debit_note(self):
+		if self.get("is_return") and self.get("update_stock") and not self.return_against:
+			for row in self.items:
+				row.rate = get_incoming_rate(
+					{
+						"item_code": row.item_code,
+						"warehouse": row.warehouse,
+						"posting_date": self.get("posting_date"),
+						"posting_time": self.get("posting_time"),
+						"qty": row.qty,
+						"serial_and_batch_bundle": row.get("serial_and_batch_bundle"),
+						"company": self.company,
+						"voucher_type": self.doctype,
+						"voucher_no": self.name,
+					},
+					raise_error_if_no_rate=False,
+				)
+
+				row.discount_percentage = 0.0
+				row.discount_amount = 0.0
+				row.margin_rate_or_amount = 0.0
+
 	def set_missing_values(self, for_validate=False):
 		super(BuyingController, self).set_missing_values(for_validate)