diff --git a/packages/Webkul/Admin/src/Resources/views/sales/orders/view.blade.php b/packages/Webkul/Admin/src/Resources/views/sales/orders/view.blade.php
index 8787b2767..dcf5d8872 100755
--- a/packages/Webkul/Admin/src/Resources/views/sales/orders/view.blade.php
+++ b/packages/Webkul/Admin/src/Resources/views/sales/orders/view.blade.php
@@ -347,9 +347,9 @@
                                     @php ($taxRates = Webkul\Tax\Helpers\Tax::getTaxRatesWithAmount($order, true))
                                     @foreach ($taxRates as $taxRate => $baseTaxAmount)
                                     <tr {{ $loop->last ? 'class=border' : ''}}>
-                                        <td id="taxrate-{{ $taxRate }}">{{ __('admin::app.sales.orders.tax') }} {{ $taxRate }} %</td>
+                                        <td id="taxrate-{{ core()->taxRateAsIdentifier($taxRate) }}">{{ __('admin::app.sales.orders.tax') }} {{ $taxRate }} %</td>
                                         <td>-</td>
-                                        <td id="basetaxamount-{{ $taxRate }}">{{ core()->formatBasePrice($baseTaxAmount) }}</td>
+                                        <td id="basetaxamount-{{ core()->taxRateAsIdentifier($taxRate) }}">{{ core()->formatBasePrice($baseTaxAmount) }}</td>
                                     </tr>
                                     @endforeach
 
diff --git a/packages/Webkul/Core/src/Core.php b/packages/Webkul/Core/src/Core.php
index 963af1b00..832e3c178 100755
--- a/packages/Webkul/Core/src/Core.php
+++ b/packages/Webkul/Core/src/Core.php
@@ -933,4 +933,15 @@ class Core
 
         return $instance[$className] = app($className);
     }
+
+    /**
+     * Returns a string as selector part for identifying elements in views
+     * @param float $taxRate
+     *
+     * @return string
+     */
+    public static function taxRateAsIdentifier(float $taxRate): string
+    {
+        return str_replace('.', '_', (string)$taxRate);
+    }
 }
\ No newline at end of file
diff --git a/packages/Webkul/Shop/src/Resources/views/checkout/total/summary.blade.php b/packages/Webkul/Shop/src/Resources/views/checkout/total/summary.blade.php
index e492cb91f..76a6b238b 100755
--- a/packages/Webkul/Shop/src/Resources/views/checkout/total/summary.blade.php
+++ b/packages/Webkul/Shop/src/Resources/views/checkout/total/summary.blade.php
@@ -20,8 +20,8 @@
     @if ($cart->base_tax_total)
         @foreach (Webkul\Tax\Helpers\Tax::getTaxRatesWithAmount($cart, true) as $taxRate => $baseTaxAmount )
         <div class="item-detail">
-            <label id="taxrate-{{ $taxRate }}">{{ __('shop::app.checkout.total.tax') }} {{ $taxRate }} %</label>
-            <label class="right" id="basetaxamount-{{ $taxRate }}">{{ core()->currency($baseTaxAmount) }}</label>
+            <label id="taxrate-{{ core()->taxRateAsIdentifier($taxRate) }}">{{ __('shop::app.checkout.total.tax') }} {{ $taxRate }} %</label>
+            <label class="right" id="basetaxamount-{{ core()->taxRateAsIdentifier($taxRate) }}">{{ core()->currency($baseTaxAmount) }}</label>
         </div>
         @endforeach
     @endif
diff --git a/packages/Webkul/Shop/src/Resources/views/emails/sales/new-admin-order.blade.php b/packages/Webkul/Shop/src/Resources/views/emails/sales/new-admin-order.blade.php
index 7e077768b..ec6933735 100644
--- a/packages/Webkul/Shop/src/Resources/views/emails/sales/new-admin-order.blade.php
+++ b/packages/Webkul/Shop/src/Resources/views/emails/sales/new-admin-order.blade.php
@@ -163,8 +163,8 @@
 
             @foreach (Webkul\Tax\Helpers\Tax::getTaxRatesWithAmount($order, true) as $taxRate => $baseTaxAmount )
             <div>
-                <span id="taxrate-{{ $taxRate }}">{{ __('shop::app.mail.order.tax') }} {{ $taxRate }} %</span>
-                <span id="basetaxamount-{{ $taxRate }}" style="float: right;">
+                <span id="taxrate-{{ core()->taxRateAsIdentifier($taxRate) }}">{{ __('shop::app.mail.order.tax') }} {{ $taxRate }} %</span>
+                <span id="basetaxamount-{{ core()->taxRateAsIdentifier($taxRate) }}" style="float: right;">
                     {{ core()->formatBasePrice($baseTaxAmount) }}
                 </span>
             </div>
diff --git a/packages/Webkul/Shop/src/Resources/views/emails/sales/new-invoice.blade.php b/packages/Webkul/Shop/src/Resources/views/emails/sales/new-invoice.blade.php
index b8f70beaa..32a35705f 100755
--- a/packages/Webkul/Shop/src/Resources/views/emails/sales/new-invoice.blade.php
+++ b/packages/Webkul/Shop/src/Resources/views/emails/sales/new-invoice.blade.php
@@ -158,8 +158,8 @@
 
             @foreach (Webkul\Tax\Helpers\Tax::getTaxRatesWithAmount($refund, false) as $taxRate => $taxAmount)
                 <div>
-                    <span id="taxrate-{{ $taxRate }}">{{ __('shop::app.mail.order.tax') }} {{ $taxRate }} %</span>
-                    <span id="taxamount-{{ $taxRate }}" style="float: right;">
+                    <span id="taxrate-{{ core()->taxRateAsIdentifier($taxRate) }}">{{ __('shop::app.mail.order.tax') }} {{ $taxRate }} %</span>
+                    <span id="taxamount-{{ core()->taxRateAsIdentifier($taxRate) }}" style="float: right;">
                     {{ core()->formatPrice($taxAmount, $order->order_currency_code) }}
                 </span>
                 </div>
diff --git a/packages/Webkul/Shop/src/Resources/views/emails/sales/new-order.blade.php b/packages/Webkul/Shop/src/Resources/views/emails/sales/new-order.blade.php
index 8089ce37a..a1b58f641 100755
--- a/packages/Webkul/Shop/src/Resources/views/emails/sales/new-order.blade.php
+++ b/packages/Webkul/Shop/src/Resources/views/emails/sales/new-order.blade.php
@@ -158,8 +158,8 @@
 
             @foreach (Webkul\Tax\Helpers\Tax::getTaxRatesWithAmount($order, false) as $taxRate => $taxAmount )
             <div>
-                <span id="taxrate-{{ $taxRate }}">{{ __('shop::app.mail.order.tax') }} {{ $taxRate }} %</span>
-                <span id="taxamount-{{ $taxRate }}" style="float: right;">
+                <span id="taxrate-{{ core()->taxRateAsIdentifier($taxRate) }}">{{ __('shop::app.mail.order.tax') }} {{ $taxRate }} %</span>
+                <span id="taxamount-{{ core()->taxRateAsIdentifier($taxRate) }}" style="float: right;">
                     {{ core()->formatPrice($taxAmount, $order->order_currency_code) }}
                 </span>
             </div>
diff --git a/packages/Webkul/Shop/src/Resources/views/emails/sales/order-cancel.blade.php b/packages/Webkul/Shop/src/Resources/views/emails/sales/order-cancel.blade.php
index c3b007370..2b0139e1c 100644
--- a/packages/Webkul/Shop/src/Resources/views/emails/sales/order-cancel.blade.php
+++ b/packages/Webkul/Shop/src/Resources/views/emails/sales/order-cancel.blade.php
@@ -159,8 +159,8 @@
 
             @foreach (Webkul\Tax\Helpers\Tax::getTaxRatesWithAmount($order, false) as $taxRate => $taxAmount )
                 <div>
-                    <span id="taxrate-{{ $taxRate }}">{{ __('shop::app.mail.order.cancel.tax') }} {{ $taxRate }} %</span>
-                    <span id="taxamount-{{ $taxRate }}" style="float: right;">
+                    <span id="taxrate-{{ core()->taxRateAsIdentifier($taxRate) }}">{{ __('shop::app.mail.order.cancel.tax') }} {{ $taxRate }} %</span>
+                    <span id="taxamount-{{ core()->taxRateAsIdentifier($taxRate) }}" style="float: right;">
                     {{ core()->formatPrice($taxAmount, $order->order_currency_code) }}
                 </span>
                 </div>
diff --git a/packages/Webkul/Tax/src/Helpers/Tax.php b/packages/Webkul/Tax/src/Helpers/Tax.php
index 908aa8be7..cc10b2baf 100644
--- a/packages/Webkul/Tax/src/Helpers/Tax.php
+++ b/packages/Webkul/Tax/src/Helpers/Tax.php
@@ -29,6 +29,13 @@ class Tax
         return $taxes;
     }
 
+    /**
+     * Returns the total tax amount
+     * @param object $that
+     * @param bool   $asBase
+     *
+     * @return float
+     */
     public static function getTaxTotal(object $that, bool $asBase = false): float
     {
         $taxes = self::getTaxRatesWithAmount($that, $asBase);
diff --git a/tests/_support/UnitTester.php b/tests/_support/UnitTester.php
index e19544a51..b056dc732 100644
--- a/tests/_support/UnitTester.php
+++ b/tests/_support/UnitTester.php
@@ -1,5 +1,6 @@
 <?php
 
+use Codeception\Stub;
 
 /**
  * Inherited Methods
@@ -15,12 +16,60 @@
  * @method void pause()
  *
  * @SuppressWarnings(PHPMD)
-*/
+ */
 class UnitTester extends \Codeception\Actor
 {
     use _generated\UnitTesterActions;
 
-   /**
-    * Define custom actions here
-    */
-}
+    /**
+     * Define custom actions here
+     */
+
+    /**
+     * execute any function of a class (also private/protected) and return its return
+     *
+     * @param string|object $className name of the class (FQCN) or an instance of it
+     * @param string        $functionName name of the function which will be executed
+     * @param array         $methodParams params the function will be executed with
+     * @param array         $constructParams params which will be called in constructor. Will be ignored if $className
+     *     is already an instance of an object.
+     * @param array         $mocks mock/stub overrides of methods and properties. Will be ignored if $className is
+     *     already an instance of an object.
+     *
+     * @return mixed
+     * @throws \Exception
+     */
+    public function executeFunction(
+        $className,
+        string $functionName,
+        array $methodParams = [],
+        array $constructParams = [],
+        array $mocks = []
+    ) {
+        $I = $this;
+        $I->comment('I execute function "'
+            . $functionName
+            . '" of class "'
+            . (is_object($className) ? get_class($className) : $className)
+            . '" with '
+            . count($methodParams)
+            . ' method-params, '
+            . count($constructParams)
+            . ' constuctor-params and '
+            . count($mocks)
+            . ' mocked class-methods/params'
+        );
+        $class = new \ReflectionClass($className);
+        $method = $class->getMethod($functionName);
+        $method->setAccessible(true);
+        if (is_object($className)) {
+            $reflectedClass = $className;
+        } elseif (empty($constructParams)) {
+            $reflectedClass = Stub::make($className, $mocks);
+        } else {
+            $reflectedClass = Stub::construct($className, $constructParams, $mocks);
+        }
+
+        return $method->invokeArgs($reflectedClass, $methodParams);
+    }
+}
\ No newline at end of file
diff --git a/tests/functional/Shop/CartCest.php b/tests/functional/Shop/CartCest.php
index 87f9aa131..8381defa2 100644
--- a/tests/functional/Shop/CartCest.php
+++ b/tests/functional/Shop/CartCest.php
@@ -4,6 +4,7 @@ namespace Tests\Functional\Cart;
 
 use FunctionalTester;
 use Faker\Factory;
+use Illuminate\Support\Facades\Config;
 use Webkul\Tax\Models\TaxMap;
 use Webkul\Tax\Models\TaxRate;
 use Webkul\Tax\Models\TaxCategory;
@@ -21,15 +22,27 @@ class CartCest
     {
         $this->faker = Factory::create();
 
-        $this->country = 'DE'; //$this->faker->countryCode;
+        $this->country = Config::get('app.default_country');
 
-        $this->tax1 = $I->have(TaxRate::class, ['tax_rate' => 7.00, 'country' => $this->country]);
+        $this->tax1 = $I->have(TaxRate::class, [
+            //'tax_rate' => 7.00,
+            'country' => $this->country
+        ]);
         $taxCategorie1 = $I->have(TaxCategory::class, []);
-        $I->have(TaxMap::class, ['tax_rate_id' => $this->tax1->id, 'tax_category_id' => $taxCategorie1->id]);
+        $I->have(TaxMap::class, [
+            'tax_rate_id' => $this->tax1->id,
+            'tax_category_id' => $taxCategorie1->id
+        ]);
 
-        $this->tax2 = $I->have(TaxRate::class, ['tax_rate' => 19.00, 'country' => $this->country]);
+        $this->tax2 = $I->have(TaxRate::class, [
+            //'tax_rate' => 19.00,
+            'country' => $this->country
+        ]);
         $taxCategorie2 = $I->have(TaxCategory::class, []);
-        $I->have(TaxMap::class, ['tax_rate_id' => $this->tax2->id, 'tax_category_id' => $taxCategorie2->id]);
+        $I->have(TaxMap::class, [
+            'tax_rate_id' => $this->tax2->id,
+            'tax_category_id' => $taxCategorie2->id
+        ]);
 
         $config1 = [
             'productInventory' => ['qty' => 100],
@@ -54,7 +67,6 @@ class CartCest
 
     public function checkCartWithMultipleTaxRates(FunctionalTester $I)
     {
-        $I->setConfigData(['default_country' => $this->country]);
 
         $prod1Quantity = $this->faker->numberBetween(9, 30);
         if ($prod1Quantity % 2 !== 0) {
@@ -73,9 +85,9 @@ class CartCest
         ]);
 
         $I->amOnPage('/checkout/cart');
-        $I->see('Tax ' . $this->tax1->tax_rate . ' %', '#taxrate-' . $this->tax1->tax_rate);
-        $I->see(round($this->product1->price * $this->tax1->tax_rate / 100, 2),
-            '#basetaxamount-' . $this->tax1->tax_rate);
+        $I->see('Tax ' . $this->tax1->tax_rate . ' %', '#taxrate-' . core()->taxRateAsIdentifier($this->tax1->tax_rate));
+        $I->see(core()->currency(round($this->product1->price * $this->tax1->tax_rate / 100, 2)),
+            '#basetaxamount-' . core()->taxRateAsIdentifier($this->tax1->tax_rate));
 
         Cart::addProduct($this->product1->id, [
             '_token'     => session('_token'),
@@ -84,9 +96,9 @@ class CartCest
         ]);
 
         $I->amOnPage('/checkout/cart');
-        $I->see('Tax ' . $this->tax1->tax_rate . ' %', '#taxrate-' . $this->tax1->tax_rate);
-        $I->see(round(($prod1Quantity + 1) * $this->product1->price * $this->tax1->tax_rate / 100, 2),
-            '#basetaxamount-' . $this->tax1->tax_rate);
+        $I->see('Tax ' . $this->tax1->tax_rate . ' %', '#taxrate-' . core()->taxRateAsIdentifier($this->tax1->tax_rate));
+        $I->see(core()->currency(round(($prod1Quantity + 1) * $this->product1->price * $this->tax1->tax_rate / 100, 2)),
+            '#basetaxamount-' . core()->taxRateAsIdentifier($this->tax1->tax_rate));
 
         Cart::addProduct($this->product2->id, [
             '_token'     => session('_token'),
@@ -95,20 +107,18 @@ class CartCest
         ]);
 
         $I->amOnPage('/checkout/cart');
-        $I->see('Tax ' . $this->tax1->tax_rate . ' %', '#taxrate-' . $this->tax1->tax_rate);
+        $I->see('Tax ' . $this->tax1->tax_rate . ' %', '#taxrate-' . core()->taxRateAsIdentifier($this->tax1->tax_rate));
         $taxAmount1 = round(($prod1Quantity + 1) * $this->product1->price * $this->tax1->tax_rate / 100, 2);
-        $I->see(core()->currency($taxAmount1),'#basetaxamount-' . $this->tax1->tax_rate);
+        $I->see(core()->currency($taxAmount1),'#basetaxamount-' . core()->taxRateAsIdentifier($this->tax1->tax_rate));
 
-        $I->see('Tax ' . $this->tax2->tax_rate . ' %', '#taxrate-' . $this->tax2->tax_rate);
+        $I->see('Tax ' . $this->tax2->tax_rate . ' %', '#taxrate-' . core()->taxRateAsIdentifier($this->tax2->tax_rate));
         $taxAmount2 = round($prod2Quantity * $this->product2->price * $this->tax2->tax_rate / 100, 2);
-        $I->see(core()->currency($taxAmount2),'#basetaxamount-' . $this->tax2->tax_rate);
+        $I->see(core()->currency($taxAmount2),'#basetaxamount-' . core()->taxRateAsIdentifier($this->tax2->tax_rate));
 
         $cart = Cart::getCart();
 
         $I->assertEquals(2, $cart->items_count);
         $I->assertEquals((float)($prod1Quantity + 1 + $prod2Quantity), $cart->items_qty);
         $I->assertEquals($taxAmount1 + $taxAmount2, $cart->tax_total);
-
-
     }
 }
\ No newline at end of file
diff --git a/tests/unit/Core/CoreCest.php b/tests/unit/Core/CoreCest.php
new file mode 100644
index 000000000..25189b907
--- /dev/null
+++ b/tests/unit/Core/CoreCest.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Tests\Unit\Core;
+
+use UnitTester;
+
+class CoreCest
+{
+    public function testTaxRateAsIdentifier(UnitTester $I)
+    {
+        $scenarios = [
+            [
+                'input'    => 0,
+                'expected' => '0',
+            ],
+            [
+                'input'    => 0.01,
+                'expected' => '0_01',
+            ],
+            [
+                'input' => .12,
+                'expected' => '0_12',
+            ],
+            [
+                'input' => 1234.5678,
+                'expected' => '1234_5678',
+            ],
+        ];
+
+        foreach ($scenarios as $scenario) {
+            $I->assertEquals($scenario['expected'], $I->executeFunction(\Webkul\Core\Core::class, 'taxRateAsIdentifier', [$scenario['input']]));
+        }
+    }
+}
diff --git a/tests/unit/Tax/Helpers/TaxCest.php b/tests/unit/Tax/Helpers/TaxCest.php
new file mode 100644
index 000000000..9b8caa20f
--- /dev/null
+++ b/tests/unit/Tax/Helpers/TaxCest.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Tests\Unit\Tax\Helpers;
+
+use UnitTester;
+
+class TaxCest
+{
+    public function testGetTaxRatesWithAmount(UnitTester $I)
+    {
+        $I->assertTrue(false);
+    }
+
+    public function testGetTaxTotal(UnitTester $I)
+    {
+        $I->assertTrue(false);
+    }
+}