diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
index dc879cfc1b4..4a8c8ad82a7 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
@@ -366,6 +366,8 @@ erpnext.accounts.PurchaseInvoice = class PurchaseInvoice extends erpnext.buying.
 		hide_fields(this.frm.doc);
 		if(cint(this.frm.doc.is_paid)) {
 			this.frm.set_value("allocate_advances_automatically", 0);
+			this.frm.set_value("payment_terms_template", "");
+			this.frm.set_value("payment_schedule", []);
 			if(!this.frm.doc.company) {
 				this.frm.set_value("is_paid", 0)
 				frappe.msgprint(__("Please specify Company to proceed"));
diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index 6a5914ddbe0..15748868510 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -415,9 +415,16 @@ class AccountsController(TransactionBase):
 					)
 
 	def validate_invoice_documents_schedule(self):
-		if self.is_return:
+		if (
+			self.is_return
+			or (self.doctype == "Purchase Invoice" and self.is_paid)
+			or (self.doctype == "Sales Invoice" and self.is_pos)
+			or self.get("is_opening") == "Yes"
+		):
 			self.payment_terms_template = ""
 			self.payment_schedule = []
+
+		if self.is_return:
 			return
 
 		self.validate_payment_schedule_dates()
@@ -2196,7 +2203,7 @@ class AccountsController(TransactionBase):
 			frappe.throw(_("Rows with duplicate due dates in other rows were found: {0}").format(duplicates))
 
 	def validate_payment_schedule_amount(self):
-		if self.doctype == "Sales Invoice" and self.is_pos:
+		if (self.doctype == "Sales Invoice" and self.is_pos) or self.get("is_opening") == "Yes":
 			return
 
 		party_account_currency = self.get("party_account_currency")