diff --git a/stock/doctype/delivery_note/delivery_note.js b/stock/doctype/delivery_note/delivery_note.js
index c5ae431..0c47148 100644
--- a/stock/doctype/delivery_note/delivery_note.js
+++ b/stock/doctype/delivery_note/delivery_note.js
@@ -29,7 +29,7 @@
 	refresh: function(doc, dt, dn) {
 		this._super();
 		
-		if(flt(doc.per_billed, 2) < 100 && doc.docstatus==1) cur_frm.add_custom_button('Make Invoice', this.make_sales_invoice);
+		if(!doc.__billing_complete && doc.docstatus==1) cur_frm.add_custom_button('Make Invoice', this.make_sales_invoice);
 	
 		if(flt(doc.per_installed, 2) < 100 && doc.docstatus==1) 
 			cur_frm.add_custom_button('Make Installation Note', this.make_installation_note);
diff --git a/stock/doctype/delivery_note/delivery_note.py b/stock/doctype/delivery_note/delivery_note.py
index 7ea512d..81c4b6c 100644
--- a/stock/doctype/delivery_note/delivery_note.py
+++ b/stock/doctype/delivery_note/delivery_note.py
@@ -50,6 +50,13 @@
 			'keyword': 'Delivered'
 		}]
 		
+	def onload(self):
+		billed_qty = webnotes.conn.sql("""select sum(ifnull(qty, 0)) from `tabSales Invoice Item`
+			where delivery_note=%s""", self.doc.name)
+		if billed_qty:
+			total_qty = sum((item.qty for item in self.doclist.get({"parentfield": "delivery_note_details"})))
+			self.doc.fields["__billing_complete"] = billed_qty[0][0] == total_qty
+		
 	def get_contact_details(self):
 		return get_obj('Sales Common').get_contact_details(self,0)
 
diff --git a/stock/doctype/purchase_receipt/purchase_receipt.js b/stock/doctype/purchase_receipt/purchase_receipt.js
index 8705143..b393907 100644
--- a/stock/doctype/purchase_receipt/purchase_receipt.js
+++ b/stock/doctype/purchase_receipt/purchase_receipt.js
@@ -28,7 +28,7 @@
 		this._super();
 		
 		if(this.frm.doc.docstatus == 1) {
-			if(flt(this.frm.doc.per_billed, 2) < 100) {
+			if(!this.frm.doc.__billing_complete) {
 				cur_frm.add_custom_button('Make Purchase Invoice', 
 					this.make_purchase_invoice);
 			}
diff --git a/stock/doctype/purchase_receipt/purchase_receipt.py b/stock/doctype/purchase_receipt/purchase_receipt.py
index 62b7a4f..703929c 100644
--- a/stock/doctype/purchase_receipt/purchase_receipt.py
+++ b/stock/doctype/purchase_receipt/purchase_receipt.py
@@ -44,6 +44,13 @@
 			'source_field': 'qty',
 			'percent_join_field': 'prevdoc_docname',
 		}]
+		
+	def onload(self):
+		billed_qty = webnotes.conn.sql("""select sum(ifnull(qty, 0)) from `tabPurchase Invoice Item`
+			where purchase_receipt=%s""", self.doc.name)
+		if billed_qty:
+			total_qty = sum((item.qty for item in self.doclist.get({"parentfield": "purchase_receipt_details"})))
+			self.doc.fields["__billing_complete"] = billed_qty[0][0] == total_qty
 
 	# get available qty at warehouse
 	def get_bin_details(self, arg = ''):