diff --git a/app/Ninja/Transformers/InvitationTransformer.php b/app/Ninja/Transformers/InvitationTransformer.php
new file mode 100644
index 000000000000..3fa15eb776c0
--- /dev/null
+++ b/app/Ninja/Transformers/InvitationTransformer.php
@@ -0,0 +1,21 @@
+<?php namespace App\Ninja\Transformers;
+
+use App\Models\Account;
+use App\Models\Contact;
+use App\Models\Invitation;
+use League\Fractal;
+
+class InvitationTransformer extends EntityTransformer
+{
+    public function transform(Invitation $invitation)
+    {
+        return [
+            'id' => (int) $invitation->public_id,
+            'key' => $invitation->getName(),
+            'status' => $invitation->getStatus(),
+            'link' => $invitation->getLink(),
+            'sent_date' => $invitation->sent_date,
+            'viewed_date' => $invitation->sent_date,
+        ];
+    }
+}
\ No newline at end of file
diff --git a/app/Ninja/Transformers/InvoiceTransformer.php b/app/Ninja/Transformers/InvoiceTransformer.php
index 8108115b2f01..432e65a2876e 100644
--- a/app/Ninja/Transformers/InvoiceTransformer.php
+++ b/app/Ninja/Transformers/InvoiceTransformer.php
@@ -25,12 +25,22 @@ class InvoiceTransformer extends EntityTransformer
         'payments'
     ];
 
+    protected $availableIncludes = [
+        'invitations',
+    ];
+
     public function includeInvoiceItems(Invoice $invoice)
     {
         $transformer = new InvoiceItemTransformer($this->account, $this->serializer);
         return $this->includeCollection($invoice->invoice_items, $transformer, ENTITY_INVOICE_ITEMS);
     }
 
+    public function includeInvitations(Invoice $invoice)
+    {
+        $transformer = new InvitationTransformer($this->account, $this->serializer);
+        return $this->includeCollection($invoice->invitations, $transformer, ENTITY_INVITATION);
+    }
+
     public function includePayments(Invoice $invoice)
     {
         $transformer = new PaymentTransformer($this->account, $this->serializer);