diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
index 85ed126..2433268 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
@@ -539,8 +539,9 @@
 			]
 			child_tables = {"items": ("expense_account",), "taxes": ("account_head",)}
 			self.needs_repost = self.check_if_fields_updated(fields_to_check, child_tables)
-			self.validate_for_repost()
-			self.db_set("repost_required", self.needs_repost)
+			if self.needs_repost:
+				self.validate_for_repost()
+				self.db_set("repost_required", self.needs_repost)
 
 	def make_gl_entries(self, gl_entries=None, from_repost=False):
 		if not gl_entries:
diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index f380825..f6d9c93 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -536,8 +536,9 @@
 				"taxes": ("account_head",),
 			}
 			self.needs_repost = self.check_if_fields_updated(fields_to_check, child_tables)
-			self.validate_for_repost()
-			self.db_set("repost_required", self.needs_repost)
+			if self.needs_repost:
+				self.validate_for_repost()
+				self.db_set("repost_required", self.needs_repost)
 
 	def set_paid_amount(self):
 		paid_amount = 0.0