diff --git a/erpnext/accounts/page/bank_reconciliation/bank_reconciliation.py b/erpnext/accounts/page/bank_reconciliation/bank_reconciliation.py
index bd4b4d7e0b1..69f9907a8d8 100644
--- a/erpnext/accounts/page/bank_reconciliation/bank_reconciliation.py
+++ b/erpnext/accounts/page/bank_reconciliation/bank_reconciliation.py
@@ -18,6 +18,10 @@ def reconcile(bank_transaction, payment_doctype, payment_name):
 	account = frappe.db.get_value("Bank Account", transaction.bank_account, "account")
 	gl_entry = frappe.get_doc("GL Entry", dict(account=account, voucher_type=payment_doctype, voucher_no=payment_name))
 
+	if payment_doctype == "Payment Entry" and payment_entry.unallocated_amount > transaction.unallocated_amount:
+		frappe.throw(_("The unallocated amount of Payment Entry {0} \
+			is greater than the Bank Transaction's unallocated amount").format(payment_name))
+		
 	if transaction.unallocated_amount == 0:
 		frappe.throw(_("This bank transaction is already fully reconciled"))
 
@@ -373,4 +377,4 @@ def sales_invoices_query(doctype, txt, searchfield, start, page_len, filters):
 			'start': start,
 			'page_len': page_len
 		}
-	)
\ No newline at end of file
+	)