Added on account amount field in Accounts Payable/Receivable Summary
diff --git a/erpnext/accounts/party.py b/erpnext/accounts/party.py
index a69a172..d25e6de 100644
--- a/erpnext/accounts/party.py
+++ b/erpnext/accounts/party.py
@@ -562,3 +562,12 @@
 		return out[0][0]
 	else:
 		return ''
+
+def get_partywise_advanced_payment_amount(party_type="Customer"):
+	data = frappe.db.sql(""" SELECT party, sum({0}) as amount
+		FROM `tabGL Entry`
+		WHERE party_type = %s and against_voucher is null GROUP BY party"""
+		.format("credit" if party_type == "Customer" else "debit") , party_type, debug=1)
+
+	if data:
+		return frappe._dict(data)
\ No newline at end of file
diff --git a/erpnext/accounts/report/accounts_receivable_summary/accounts_receivable_summary.py b/erpnext/accounts/report/accounts_receivable_summary/accounts_receivable_summary.py
index 0a955a7..a272bfe 100644
--- a/erpnext/accounts/report/accounts_receivable_summary/accounts_receivable_summary.py
+++ b/erpnext/accounts/report/accounts_receivable_summary/accounts_receivable_summary.py
@@ -5,6 +5,7 @@
 import frappe
 from frappe import _, scrub
 from frappe.utils import flt
+from erpnext.accounts.party import get_partywise_advanced_payment_amount
 from erpnext.accounts.report.accounts_receivable.accounts_receivable import ReceivablePayableReport
 
 from six import iteritems
@@ -24,6 +25,12 @@
 		credit_debit_label = "Credit Note Amt" if args.get('party_type') == 'Customer' else "Debit Note Amt"
 
 		columns += [{
+			"label": _("On Account Amount"),
+			"fieldname": "on_account_amt",
+			"fieldtype": "Currency",
+			"options": "currency",
+			"width": 100
+		},{
 			"label": _("Total Invoiced Amt"),
 			"fieldname": "total_invoiced_amt",
 			"fieldtype": "Currency",
@@ -129,12 +136,15 @@
 
 		partywise_total = self.get_partywise_total(party_naming_by, args)
 
+		partywise_advance_amount = get_partywise_advanced_payment_amount(args.get("party_type")) or {}
 		for party, party_dict in iteritems(partywise_total):
 			row = [party]
 
 			if party_naming_by == "Naming Series":
 				row += [self.get_party_name(args.get("party_type"), party)]
 
+			row += [partywise_advance_amount.get(party, 0)]
+
 			row += [
 				party_dict.invoiced_amt, party_dict.paid_amt, party_dict.credit_amt, party_dict.outstanding_amt,
 				party_dict.range1, party_dict.range2, party_dict.range3, party_dict.range4,