diff --git a/erpnext/accounts/doctype/payment_schedule/payment_schedule.py b/erpnext/accounts/doctype/payment_schedule/payment_schedule.py
index 8a292fd3aba2..d61eeb89f0af 100644
--- a/erpnext/accounts/doctype/payment_schedule/payment_schedule.py
+++ b/erpnext/accounts/doctype/payment_schedule/payment_schedule.py
@@ -32,4 +32,5 @@ class PaymentSchedule(Document):
 		payment_term: DF.Link | None
 	# end: auto-generated types
 
-	pass
+	def validate_discount_date(self):
+		self.validate_from_to_dates("due_date", "discount_date")
diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index 40c410eed05c..b5481291c0fb 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -2361,6 +2361,7 @@ def validate_payment_schedule_dates(self):
 			return
 
 		for d in self.get("payment_schedule"):
+			d.validate_discount_date()
 			if self.doctype == "Sales Order" and getdate(d.due_date) < getdate(self.transaction_date):
 				frappe.throw(
 					_("Row {0}: Due Date in the Payment Terms table cannot be before Posting Date").format(