diff --git a/app/Observers/ClientObserver.php b/app/Observers/ClientObserver.php
index 0b06b2cf3dee..e33316e1833a 100644
--- a/app/Observers/ClientObserver.php
+++ b/app/Observers/ClientObserver.php
@@ -88,7 +88,7 @@ class ClientObserver
     {
 
         /** Monitor postal code changes for US based clients for tax calculations */
-        if($client->getOriginal('postal_code') != $client->postal_code && $client->country_id == 840 && $client->company->calculate_taxes && !$client->company->account->isFreeHostedClient()) {
+        if(($client->getOriginal('shipping_postal_code') != $client->shipping_postal_code || $client->getOriginal('postal_code') != $client->postal_code) && $client->country_id == 840 && $client->company->calculate_taxes && !$client->company->account->isFreeHostedClient()) {
             UpdateTaxData::dispatch($client, $client->company);
         }