diff --git a/erpnext/selling/sales_common.js b/erpnext/selling/sales_common.js
index d2eab68..1dbbbfe 100644
--- a/erpnext/selling/sales_common.js
+++ b/erpnext/selling/sales_common.js
@@ -407,9 +407,12 @@
 				"paid_amount"]);
 			var total_amount_to_pay = this.frm.doc.grand_total - this.frm.doc.write_off_amount 
 				- this.frm.doc.total_advance;
+			if(this.frm.doc.is_pos) {
+				if(!this.frm.doc.paid_amount) this.frm.doc.paid_amount = flt(total_amount_to_pay);
+			} else {
+				this.frm.doc.paid_amount = 0
+			}
 
-			this.frm.doc.paid_amount = (this.frm.doc.is_pos && !this.frm.doc.paid_amount) ? 
-				flt(total_amount_to_pay): 0.0;
 			this.frm.set_value("outstanding_amount", flt(total_amount_to_pay 
 				- this.frm.doc.paid_amount, precision("outstanding_amount")));
 		}