diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index 2e90c446ade..184c0792dda 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -2328,7 +2328,7 @@ class AccountsController(TransactionBase):
 				and automatically_fetch_payment_terms
 				and self.linked_order_has_payment_terms(po_or_so, fieldname, doctype)
 			):
-				self.fetch_payment_terms_from_order(po_or_so, doctype)
+				self.fetch_payment_terms_from_order(po_or_so, doctype, grand_total, base_grand_total)
 				if self.get("payment_terms_template"):
 					self.ignore_default_payment_terms_template = 1
 			elif self.get("payment_terms_template"):
@@ -2372,7 +2372,7 @@ class AccountsController(TransactionBase):
 						d.payment_amount * self.get("conversion_rate"), d.precision("base_payment_amount")
 					)
 		else:
-			self.fetch_payment_terms_from_order(po_or_so, doctype)
+			self.fetch_payment_terms_from_order(po_or_so, doctype, grand_total, base_grand_total)
 			self.ignore_default_payment_terms_template = 1
 
 	def get_order_details(self):
@@ -2410,7 +2410,7 @@ class AccountsController(TransactionBase):
 	def linked_order_has_payment_schedule(self, po_or_so):
 		return frappe.get_all("Payment Schedule", filters={"parent": po_or_so})
 
-	def fetch_payment_terms_from_order(self, po_or_so, po_or_so_doctype):
+	def fetch_payment_terms_from_order(self, po_or_so, po_or_so_doctype, grand_total, base_grand_total):
 		"""
 		Fetch Payment Terms from Purchase/Sales Order on creating a new Purchase/Sales Invoice.
 		"""
@@ -2426,12 +2426,25 @@ class AccountsController(TransactionBase):
 				"invoice_portion": schedule.invoice_portion,
 				"mode_of_payment": schedule.mode_of_payment,
 				"description": schedule.description,
-				"payment_amount": schedule.payment_amount,
-				"base_payment_amount": schedule.base_payment_amount,
-				"outstanding": schedule.outstanding,
 				"paid_amount": schedule.paid_amount,
 			}
 
+			if payment_schedule["invoice_portion"]:
+				payment_schedule["payment_amount"] = flt(
+					grand_total * flt(payment_schedule["invoice_portion"]) / 100,
+					schedule.precision("payment_amount"),
+				)
+				payment_schedule["base_payment_amount"] = flt(
+					base_grand_total * flt(payment_schedule["invoice_portion"]) / 100,
+					schedule.precision("base_payment_amount"),
+				)
+				payment_schedule["outstanding"] = payment_schedule["payment_amount"]
+			else:
+				payment_schedule["base_payment_amount"] = flt(
+					schedule.base_payment_amount * self.get("conversion_rate"),
+					schedule.precision("base_payment_amount"),
+				)
+
 			if schedule.discount_type == "Percentage":
 				payment_schedule["discount_type"] = schedule.discount_type
 				payment_schedule["discount"] = schedule.discount