diff --git a/app/Http/Controllers/BaseController.php b/app/Http/Controllers/BaseController.php
index 7ebcda5eba44..4fa44c019a2a 100644
--- a/app/Http/Controllers/BaseController.php
+++ b/app/Http/Controllers/BaseController.php
@@ -504,4 +504,18 @@ class BaseController extends Controller
 
         return redirect('/setup');
     }
+
+    public function checkFeature($feature)
+    {
+
+      if(auth()->user()->account->hasFeature($feature))
+        return true;
+
+      return false;
+    }
+
+    public function featureFailure()
+    {
+      return response()->json(['message' => 'Upgrade to a paid plan for this feature.'], 403);
+    }
 }
diff --git a/app/Http/Controllers/InvoiceController.php b/app/Http/Controllers/InvoiceController.php
index a5e99de0b00e..77ab97a7d900 100644
--- a/app/Http/Controllers/InvoiceController.php
+++ b/app/Http/Controllers/InvoiceController.php
@@ -30,6 +30,7 @@ use App\Jobs\Entity\EmailEntity;
 use App\Jobs\Invoice\StoreInvoice;
 use App\Jobs\Invoice\ZipInvoices;
 use App\Jobs\Util\UnlinkFile;
+use App\Models\Account;
 use App\Models\Client;
 use App\Models\Invoice;
 use App\Models\Quote;
@@ -906,7 +907,9 @@ class InvoiceController extends BaseController
      */
     public function upload(UploadInvoiceRequest $request, Invoice $invoice)
     {
-
+        if(!$this->checkFeature(Account::FEATURE_DOCUMENTS))
+            return $this->featureFailure();
+        
         if ($request->has('documents')) 
             $this->saveDocuments($request->file('documents'), $invoice);
 
diff --git a/app/Models/Account.php b/app/Models/Account.php
index e817f5c4a866..737abe457853 100644
--- a/app/Models/Account.php
+++ b/app/Models/Account.php
@@ -167,17 +167,17 @@ class Account extends BaseModel
 
             // Enterprise; No Trial allowed; grandfathered for old pro users
             case self::FEATURE_USERS:// Grandfathered for old Pro users
-                if ($planDetails && $planDetails['trial']) {
+                if ($plan_details && $plan_details['trial']) {
                     // Do they have a non-trial plan?
-                    $planDetails = $this->getPlanDetails(false, false);
+                    $plan_details = $this->getPlanDetails(false, false);
                 }
 
-                return $self_host || ! empty($planDetails) && ($planDetails['plan'] == self::PLAN_ENTERPRISE);
+                return $self_host || ! empty($plan_details) && ($plan_details['plan'] == self::PLAN_ENTERPRISE);
 
             // Enterprise; No Trial allowed
             case self::FEATURE_DOCUMENTS:
             case self::FEATURE_USER_PERMISSIONS:
-                return $self_host || ! empty($planDetails) && $planDetails['plan'] == self::PLAN_ENTERPRISE && ! $planDetails['trial'];
+                return $self_host || ! empty($plan_details) && $plan_details['plan'] == self::PLAN_ENTERPRISE && ! $plan_details['trial'];
 
             default:
                 return false;