diff -Nuar a/vendor/magento/module-checkout/view/frontend/web/js/model/address-converter.js b/vendor/magento/module-checkout/view/frontend/web/js/model/address-converter.js
index a59ea7101f1..d296999c88b 100644
--- a/vendor/magento/module-checkout/view/frontend/web/js/model/address-converter.js
+++ b/vendor/magento/module-checkout/view/frontend/web/js/model/address-converter.js
@@ -27,7 +27,8 @@ define([
             // clone address form data to new object
             var addressData = $.extend(true, {}, formData),
                 region,
-                regionName = addressData.region;
+                regionName = addressData.region,
+                customAttributes;
 
             if (mageUtils.isObject(addressData.street)) {
                 addressData.street = this.objectToArray(addressData.street);
@@ -64,10 +65,20 @@ define([
                 addressData['custom_attributes'] = _.map(
                     addressData['custom_attributes'],
                     function (value, key) {
-                        return {
+                        customAttributes = {
                             'attribute_code': key,
                             'value': value
                         };
+
+                        if (typeof value === 'boolean') {
+                            customAttributes = {
+                                'attribute_code': key,
+                                'value': value,
+                                'label': value === true ? 'Yes' : 'No'
+                            };
+                        }
+
+                        return customAttributes;
                     }
                 );
             }
diff -Nuar a/vendor/magento/module-customer/Model/Address/CustomAttributesProcessor.php b/vendor/magento/module-customer/Model/Address/CustomAttributesProcessor.php
index d6e63e11ee4..0fd72a59189 100644
--- a/vendor/magento/module-customer/Model/Address/CustomAttributesProcessor.php
+++ b/vendor/magento/module-customer/Model/Address/CustomAttributesProcessor.php
@@ -71,7 +71,7 @@ class CustomAttributesProcessor
     {
         $attributeOptionLabels = [];
 
-        if (!empty($customAttribute['value'])) {
+        if (isset($customAttribute['value']) && $customAttribute['value'] != null) {
             $customAttributeValues = explode(',', $customAttribute['value']);
             $attributeOptions = $this->attributeOptionManager->getItems(
                 \Magento\Customer\Model\Indexer\Address\AttributeProvider::ENTITY,