diff --git a/erpnext/public/js/controllers/taxes_and_totals.js b/erpnext/public/js/controllers/taxes_and_totals.js
index fd99d80..0045177 100644
--- a/erpnext/public/js/controllers/taxes_and_totals.js
+++ b/erpnext/public/js/controllers/taxes_and_totals.js
@@ -46,14 +46,19 @@
 		var company_currency = this.get_company_currency();
 
 		if(!this.frm.doc.conversion_rate) {
-			frappe.throw(repl('%(conversion_rate_label)s' +
-				__(' is mandatory. Maybe Currency Exchange record is not created for ') +
-				'%(from_currency)s' + __(" to ") + '%(to_currency)s',
-				{
-					"conversion_rate_label": conversion_rate_label,
-					"from_currency": this.frm.doc.currency,
-					"to_currency": company_currency
-				}));
+			if(this.frm.doc.currency == company_currency) {
+				this.frm.set_value("conversion_rate", 1);
+			} else {
+				frappe.throw(repl('%(conversion_rate_label)s' +
+					__(' is mandatory. Maybe Currency Exchange record is not created for ') +
+					'%(from_currency)s' + __(" to ") + '%(to_currency)s',
+					{
+						"conversion_rate_label": conversion_rate_label,
+						"from_currency": this.frm.doc.currency,
+						"to_currency": company_currency
+					}));
+			}
+			
 		}
 	},
 
diff --git a/erpnext/public/js/controllers/transaction.js b/erpnext/public/js/controllers/transaction.js
index c8b2b64..a3f1eca 100644
--- a/erpnext/public/js/controllers/transaction.js
+++ b/erpnext/public/js/controllers/transaction.js
@@ -75,7 +75,6 @@
 			callback: function(r) {
 				if(!r.exc) {
 					me.frm.set_value("taxes", r.message);
-					me.calculate_taxes_and_totals();
 				}
 			}
 		});