diff --git a/app/Http/Controllers/InvoiceController.php b/app/Http/Controllers/InvoiceController.php
index 20e7ed40c865..c2889d2bd9b5 100644
--- a/app/Http/Controllers/InvoiceController.php
+++ b/app/Http/Controllers/InvoiceController.php
@@ -185,6 +185,10 @@ class InvoiceController extends BaseController
      *      @OA\Parameter(ref="#/components/parameters/X-Api-Token"),
      *      @OA\Parameter(ref="#/components/parameters/X-Requested-With"),
      *      @OA\Parameter(ref="#/components/parameters/include"),
+     *      @OA\RequestBody(
+     *          required=true,
+     *          @OA\JsonContent(ref="#/components/schemas/FillableInvoice")
+     *      ),
      *      @OA\Response(
      *          response=200,
      *          description="Returns the saved invoice object",
diff --git a/app/Http/Controllers/OpenAPI/FillableInvoiceSchema.php b/app/Http/Controllers/OpenAPI/FillableInvoiceSchema.php
new file mode 100644
index 000000000000..3eb4d66027e5
--- /dev/null
+++ b/app/Http/Controllers/OpenAPI/FillableInvoiceSchema.php
@@ -0,0 +1,37 @@
+<?php
+/**
+ * @OA\Schema(
+ *     schema="FillableInvoice",
+ *     type="object",
+ *         @OA\Property(property="assigned_user_id", type="string", example="", description="__________"),
+ *         @OA\Property(property="client_id", type="string", example="", description="________"),
+ *         @OA\Property(property="number", type="string", example="INV_101", description="The invoice number - is a unique alpha numeric number per invoice per company"),
+ *         @OA\Property(property="po_number", type="string", example="", description="________"),
+ *         @OA\Property(property="terms", type="string", example="", description="________"),
+ *         @OA\Property(property="public_notes", type="string", example="", description="________"),
+ *         @OA\Property(property="private_notes", type="string", example="", description="________"),
+ *         @OA\Property(property="footer", type="string", example="", description="________"),
+ *         @OA\Property(property="custom_value1", type="string", example="", description="________"),
+ *         @OA\Property(property="custom_value2", type="string", example="", description="________"),
+ *         @OA\Property(property="custom_value3", type="string", example="", description="________"),
+ *         @OA\Property(property="custom_value4", type="string", example="", description="________"),
+ *         @OA\Property(property="tax_name1", type="string", example="", description="________"),
+ *         @OA\Property(property="tax_name2", type="string", example="", description="________"),
+ *         @OA\Property(property="tax_rate1", type="number", example="10.00", description="_________"),
+ *         @OA\Property(property="tax_rate2", type="number", example="10.00", description="_________"),
+ *         @OA\Property(property="tax_name3", type="string", example="", description="________"),
+ *         @OA\Property(property="tax_rate3", type="number", example="10.00", description="_________"),
+ *         @OA\Property(property="line_items", type="object", example="", description="_________"),
+ *         @OA\Property(property="discount", type="number", example="10.00", description="_________"),
+ *         @OA\Property(property="partial", type="number", example="10.00", description="_________"),
+ *         @OA\Property(property="is_amount_discount", type="boolean", example="1", description="_________"),
+ *         @OA\Property(property="uses_inclusive_taxes", type="boolean", example="1", description="Defines the type of taxes used as either inclusive or exclusive"),
+ *         @OA\Property(property="date", type="string", example="1994-07-30", description="The Invoice Date"),
+ *         @OA\Property(property="partial_due_date", type="string", example="1994-07-30", description="_________"),
+ *         @OA\Property(property="due_date", type="string", example="1994-07-30", description="_________"),
+ *         @OA\Property(property="custom_surcharge1", type="number", example="10.00", description="First Custom Surcharge"),
+ *         @OA\Property(property="custom_surcharge2", type="number", example="10.00", description="Second Custom Surcharge"),
+ *         @OA\Property(property="custom_surcharge3", type="number", example="10.00", description="Third Custom Surcharge"),
+ *         @OA\Property(property="custom_surcharge4", type="number", example="10.00", description="Fourth Custom Surcharge")
+ * )
+ */