diff --git a/assets/js/admin/settings-views-html-settings-tax.js b/assets/js/admin/settings-views-html-settings-tax.js
index bf66bc215a6..88c028ba8c8 100644
--- a/assets/js/admin/settings-views-html-settings-tax.js
+++ b/assets/js/admin/settings-views-html-settings-tax.js
@@ -61,6 +61,24 @@
 				},
 				initialize : function() {
 					this.qty_pages = Math.ceil( this.model.get( 'rates' ).length / this.per_page );
+					this.listenTo( this.model, 'change', this.setUnloadConfirmation );
+					this.listenTo( this.model, 'saved', this.clearUnloadConfirmation );
+					window.addEventListener( 'beforeunload', this.unloadConfirmation );
+				},
+				setUnloadConfirmation : function() {
+					console.log( data.strings.unload_confirmation_msg );
+					this.needsUnloadConfirm = true;
+				},
+				clearUnloadConfirmation : function() {
+					this.needsUnloadConfirm = false;
+				},
+				unloadConfirmation : function(e) {
+					if ( this.needsUnloadConfirm ) {
+						e.returnValue = data.strings.unload_confirmation_msg;
+						window.event.returnValue = data.strings.unload_confirmation_msg;
+						return data.strings.unload_confirmation_msg;
+					}
+					return null;
 				},
 				sanitizePage : function( page_num ) {
 					page_num = parseInt( page_num, 10 );
diff --git a/includes/admin/settings/class-wc-settings-tax.php b/includes/admin/settings/class-wc-settings-tax.php
index 946fa1518ef..857558a1958 100644
--- a/includes/admin/settings/class-wc-settings-tax.php
+++ b/includes/admin/settings/class-wc-settings-tax.php
@@ -156,6 +156,7 @@ class WC_Settings_Tax extends WC_Settings_Page {
 			'states'        => $states,
 			'strings'       => array(
 				'no_rows_selected' => __( 'No row(s) selected', 'woocommerce' ),
+				'unload_confirmation_msg' => __( 'Your changed data will be lost if you leave this page without saving.', 'woocommerce' ),
 				'csv_data_cols' => array(
 					__( 'Country Code', 'woocommerce' ),
 					__( 'State Code', 'woocommerce' ),