diff --git a/src/models/Document.ts b/src/models/Document.ts
index 9c0955d..c3a53af 100644
--- a/src/models/Document.ts
+++ b/src/models/Document.ts
@@ -11,6 +11,7 @@ export interface BaseInfo {
     country?: string;
     companyName?: string;
     coc?: string;
+    vatno?: string;
 }
 
 export interface DocumentRequest extends BaseInfo {
diff --git a/test/client.test.ts b/test/client.test.ts
index 7231f8a..73e5ed3 100644
--- a/test/client.test.ts
+++ b/test/client.test.ts
@@ -140,7 +140,8 @@ describe('Invoice', {skip: noApiConfigured}, async () => {
             zip: faker.location.zipCode(),
             country: faker.location.countryCode(),
             companyName: faker.company.name(),
-            coc: faker.company.catchPhraseAdjective()
+            coc: faker.company.catchPhraseAdjective(),
+            vatno: faker.company.catchPhraseAdjective()
         }
     });
     assert.ok(invoice);