diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
index be429689b5a..dd8758e68a3 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
@@ -399,6 +399,8 @@ 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 20b5885bfdc..d87a11f79f4 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -464,9 +464,16 @@ 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()