diff --git a/src/InvoiceRule/Tax.php b/src/InvoiceRule/Tax.php
index b1e6a600..50834e44 100644
--- a/src/InvoiceRule/Tax.php
+++ b/src/InvoiceRule/Tax.php
@@ -9,14 +9,19 @@ use App\InvoiceRuleInterface;
 use App\Ramcar\ServiceType;
 
 use App\Entity\ServiceOffering;
+use App\Entity\ItemType;
+
+use App\Service\PriceTierManager;
 
 class Tax implements InvoiceRuleInterface
 {
     protected $em;
+    protected $pt_manager;
 
-    public function __construct(EntityManagerInterface $em)
+    public function __construct(EntityManagerInterface $em, PriceTierManager $pt_manager)
     {
         $this->em = $em;
+        $this->pt_manager = $pt_manager;
     }
 
     public function getID()
@@ -40,6 +45,7 @@ class Tax implements InvoiceRuleInterface
 
         // compute tax per item if service type is battery sales
         $stype = $criteria->getServiceType();
+        $pt = $criteria->getPriceTier();
 
         if ($stype == ServiceType::BATTERY_REPLACEMENT_NEW)
         {
@@ -58,7 +64,13 @@ class Tax implements InvoiceRuleInterface
                 $battery = $entry['battery'];
                 $qty = $entry['qty'];
 
-                $price = $battery->getSellingPrice();
+                // check if price tier has item price for battery
+                $pt_price = $this->getPriceTierItemPrice($pt, $battery);
+
+                if ($pt_price == null)
+                    $price = $battery->getSellingPrice();
+                else
+                    $price = $pt_price;
 
                 $vat = $this->getTaxAmount($price, $tax_rate);
 
@@ -96,6 +108,25 @@ class Tax implements InvoiceRuleInterface
         return null;
     }
 
+    protected function getPriceTierItemPrice($pt_id, $batt)
+    {
+        // price tier is default
+        if ($pt_id == 0)
+            return null;
+
+        // find the item type battery
+        $item_type = $this->em->getRepository(ItemType::class)->findOneBy(['code' => 'battery']);
+        if ($item_type == null)
+            return null;
+
+        $item_type_id = $item_type->getID();
+        $item_id = $batt->getID();
+
+        $price = $this->pt_manager->getItemPrice($pt_id, $item_type_id, $item_id);
+
+        return $price;
+    }
+
     protected function getTaxAmount($price, $tax_rate)
     {
         $vat_ex_price = $this->getTaxExclusivePrice($price, $tax_rate);
diff --git a/src/Service/InvoiceManager.php b/src/Service/InvoiceManager.php
index f46c95ab..8f655224 100644
--- a/src/Service/InvoiceManager.php
+++ b/src/Service/InvoiceManager.php
@@ -56,7 +56,7 @@ class InvoiceManager implements InvoiceGeneratorInterface
             new InvoiceRule\TireRepair($this->em, $this->pt_manager),
             new InvoiceRule\DiscountType($this->em),
             new InvoiceRule\TradeIn(),
-            new InvoiceRule\Tax($this->em),
+            new InvoiceRule\Tax($this->em, $this->pt_manager),
         ]; 
     }
 
diff --git a/src/Service/JobOrderHandler/ResqJobOrderHandler.php b/src/Service/JobOrderHandler/ResqJobOrderHandler.php
index 28e9035d..c7c38100 100644
--- a/src/Service/JobOrderHandler/ResqJobOrderHandler.php
+++ b/src/Service/JobOrderHandler/ResqJobOrderHandler.php
@@ -588,7 +588,7 @@ class ResqJobOrderHandler implements JobOrderHandlerInterface
             {
                 $source = $jo->getSource();
 
-                // TODO: set the price tier according to location.
+                // get the price tier according to location.
                 $price_tier = $this->pt_manager->getPriceTier($jo->getCoordinates()); 
                 $this->ic->generateInvoiceCriteria($jo, $promo_id, $invoice_items, $source, $price_tier, $error_array);
             }
@@ -822,7 +822,9 @@ class ResqJobOrderHandler implements JobOrderHandlerInterface
             {
                 $source = $obj->getSource();
 
-                $this->ic->generateInvoiceCriteria($obj, $promo_id, $invoice_items, $source, $error_array);
+                // get the price tier according to location.
+                $price_tier = $this->pt_manager->getPriceTier($obj->getCoordinates());
+                $this->ic->generateInvoiceCriteria($obj, $promo_id, $invoice_items, $source, $price_tier, $error_array);
             }
 
             // validate
@@ -2170,7 +2172,9 @@ class ResqJobOrderHandler implements JobOrderHandlerInterface
                 // NOTE: this is CMB code but for compilation purposes we need to add this
                 $source = $jo->getSource();
 
-                $this->ic->generateInvoiceCriteria($jo, $promo_id, $invoice_items, $source, $error_array);
+                // get the price tier according to location.
+                $price_tier = $this->pt_manager->getPriceTier($jo->getCoordinates());
+                $this->ic->generateInvoiceCriteria($jo, $promo_id, $invoice_items, $source, $price_tier, $error_array);
             }
 
             // validate
diff --git a/src/Service/PriceTierManager.php b/src/Service/PriceTierManager.php
index c572af76..1d8bb60c 100644
--- a/src/Service/PriceTierManager.php
+++ b/src/Service/PriceTierManager.php
@@ -51,10 +51,27 @@ class PriceTierManager
         return $actual_price;
     }
 
-    public function getPriceTier(Point $point)
+    public function getPriceTier(Point $coordinates)
     {
-        // TODO: get location's price tier, given a set of coordinates
-        // for now, hardcoded for testing purposes
-        return 1;
+        $price_tier_id = 0;
+
+        $long = $coordinates->getLongitude();
+        $lat = $coordinates->getLatitude();
+
+        // get location's price tier, given a set of coordinates
+        $query = $this->em->createQuery('SELECT s from App\Entity\SupportedArea s where st_contains(s.coverage_area, point(:long, :lat)) = true');
+        $area = $query->setParameter('long', $long)
+                ->setParameter('lat', $lat)
+                ->setMaxResults(1)
+                ->getOneOrNullResult();
+
+        if ($area != null)
+        {
+            $price_tier = $area->getPriceTier();
+            if ($price_tier != null)
+                $price_tier_id = $price_tier->getID();            
+        }
+
+        return $price_tier_id;
     }
 }