diff --git a/schemas/2020-05-01/Microsoft.Billing.json b/schemas/2020-05-01/Microsoft.Billing.json
index 766e06fa20..4daa2c1943 100644
--- a/schemas/2020-05-01/Microsoft.Billing.json
+++ b/schemas/2020-05-01/Microsoft.Billing.json
@@ -275,6 +275,10 @@
           "type": "string",
           "description": "Last name."
         },
+        "middleName": {
+          "type": "string",
+          "description": "Middle name."
+        },
         "phoneNumber": {
           "type": "string",
           "description": "Phone number."
@@ -480,6 +484,21 @@
         "poNumber": {
           "type": "string",
           "description": "The purchase order name that will appear on the invoices generated for the billing profile."
+        },
+        "tags": {
+          "oneOf": [
+            {
+              "type": "object",
+              "additionalProperties": {
+                "type": "string"
+              },
+              "properties": {}
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Tags of billing profiles."
         }
       },
       "description": "The properties of the billing profile."