diff --git a/src/Engine.php b/src/Engine.php
index 132e3c7..940dae7 100644
--- a/src/Engine.php
+++ b/src/Engine.php
@@ -231,6 +231,17 @@ class Engine
      * @return mixed
      */
     public function getTaxPrice()
+    {
+        if($this->dirty) {
+            $this->calc();
+        }
+        return round(($this->price/100*$this->tax),2);
+    }
+
+    /**
+     * @return mixed
+     */
+    public function getCompletePrice()
     {
         if($this->dirty) {
             $this->calc();
diff --git a/tests/Calc/PriceMinTest.php b/tests/Calc/PriceMinTest.php
index 6996cce..8955db8 100644
--- a/tests/Calc/PriceMinTest.php
+++ b/tests/Calc/PriceMinTest.php
@@ -34,7 +34,8 @@ class PriceMinTest extends \PHPUnit_Framework_TestCase
 
         $this->assertEquals(2500, $this->engine->getPrice());
         $this->engine->setTax(19);
-        $this->assertEquals(2975, $this->engine->getTaxPrice());
+        $this->assertEquals(475, $this->engine->getTaxPrice());
+        $this->assertEquals(2975, $this->engine->getCompletePrice());
     }
 
     public function testIfCalcReturnsGrenzeWithFormular()
@@ -50,6 +51,9 @@ class PriceMinTest extends \PHPUnit_Framework_TestCase
         $this->engine->calc();
 
         $this->assertEquals(2721.40, $this->engine->getPrice());
+        $this->engine->setTax(19);
+        $this->assertEquals(517.07, $this->engine->getTaxPrice());
+        $this->assertEquals(3238.47, $this->engine->getCompletePrice());
     }
 
 }
\ No newline at end of file