diff --git a/app/Helpers/Invoice/InvoiceSumInclusive.php b/app/Helpers/Invoice/InvoiceSumInclusive.php
index f4a57f27de..3786b55f99 100644
--- a/app/Helpers/Invoice/InvoiceSumInclusive.php
+++ b/app/Helpers/Invoice/InvoiceSumInclusive.php
@@ -122,7 +122,7 @@ class InvoiceSumInclusive
     private function calculateInvoiceTaxes()
     {
         $amount = $this->total;
-
+       
         if ($this->invoice->discount > 0 && $this->invoice->is_amount_discount) {
             $amount = $this->formatValue(($this->sub_total - $this->invoice->discount), 2);
         }
@@ -131,20 +131,20 @@ class InvoiceSumInclusive
             $amount = $this->formatValue(($this->sub_total - ($this->sub_total * ($this->invoice->discount / 100))), 2);
         }
 
-        if (is_string($this->invoice->tax_name1) && strlen($this->invoice->tax_name1) > 2) {
+        if (is_string($this->invoice->tax_name1) && strlen($this->invoice->tax_name1) > 1) {
             $tax = $this->calcInclusiveLineTax($this->invoice->tax_rate1, $amount);
             $this->total_taxes += $tax;
 
             $this->total_tax_map[] = ['name' => $this->invoice->tax_name1.' '.floatval($this->invoice->tax_rate1).'%', 'total' => $tax];
         }
 
-        if (is_string($this->invoice->tax_name2) && strlen($this->invoice->tax_name2) > 2) {
+        if (is_string($this->invoice->tax_name2) && strlen($this->invoice->tax_name2) > 1) {
             $tax = $this->calcInclusiveLineTax($this->invoice->tax_rate2, $amount);
             $this->total_taxes += $tax;
             $this->total_tax_map[] = ['name' => $this->invoice->tax_name2.' '.floatval($this->invoice->tax_rate2).'%', 'total' => $tax];
         }
 
-        if (is_string($this->invoice->tax_name3) && strlen($this->invoice->tax_name3) > 2) {
+        if (is_string($this->invoice->tax_name3) && strlen($this->invoice->tax_name3) > 1) {
             $tax = $this->calcInclusiveLineTax($this->invoice->tax_rate3, $amount);
             $this->total_taxes += $tax;
             $this->total_tax_map[] = ['name' => $this->invoice->tax_name3.' '.floatval($this->invoice->tax_rate3).'%', 'total' => $tax];
diff --git a/tests/Unit/InvoiceInclusiveTest.php b/tests/Unit/InvoiceInclusiveTest.php
index e4b6b5d870..c5e8eba22a 100644
--- a/tests/Unit/InvoiceInclusiveTest.php
+++ b/tests/Unit/InvoiceInclusiveTest.php
@@ -66,6 +66,8 @@ class InvoiceInclusiveTest extends TestCase
 
     public function testInvoiceTotals()
     {
+        
+        $this->invoice_calc = new InvoiceSumInclusive($this->invoice);
         $this->invoice_calc->build();
 
         $this->assertEquals($this->invoice_calc->getSubTotal(), 20);
@@ -76,6 +78,8 @@ class InvoiceInclusiveTest extends TestCase
     {
         $this->invoice->discount = 5;
 
+        
+        $this->invoice_calc = new InvoiceSumInclusive($this->invoice);
         $this->invoice_calc->build();
 
         $this->assertEquals($this->invoice_calc->getSubTotal(), 20);
@@ -88,6 +92,8 @@ class InvoiceInclusiveTest extends TestCase
         $this->invoice->discount = 5;
         $this->invoice->custom_surcharge1 = 5;
 
+        
+        $this->invoice_calc = new InvoiceSumInclusive($this->invoice);
         $this->invoice_calc->build();
 
         $this->assertEquals($this->invoice_calc->getSubTotal(), 20);
@@ -103,6 +109,8 @@ class InvoiceInclusiveTest extends TestCase
         $this->invoice->tax_rate1 = 10;
         $this->invoice->is_amount_discount = true;
 
+        
+        $this->invoice_calc = new InvoiceSumInclusive($this->invoice);
         $this->invoice_calc->build();
 
         $this->assertEquals($this->invoice_calc->getSubTotal(), 20);
@@ -119,6 +127,7 @@ class InvoiceInclusiveTest extends TestCase
         $this->invoice->tax_rate1 = 10;
         $this->invoice->is_amount_discount = false;
 
+        $this->invoice_calc = new InvoiceSumInclusive($this->invoice);
         $this->invoice_calc->build();
 
         $this->assertEquals($this->invoice_calc->getSubTotal(), 20);
@@ -135,6 +144,7 @@ class InvoiceInclusiveTest extends TestCase
         $this->invoice->uses_inclusive_taxes = true;
         $this->invoice->is_amount_discount = true;
 
+        $this->invoice_calc = new InvoiceSumInclusive($this->invoice);
         $this->invoice_calc->build();
 
         $this->assertEquals($this->invoice_calc->getSubTotal(), 20);
@@ -154,6 +164,8 @@ class InvoiceInclusiveTest extends TestCase
         $this->invoice->uses_inclusive_taxes = true;
         $this->invoice->is_amount_discount = true;
 
+        
+        $this->invoice_calc = new InvoiceSumInclusive($this->invoice);
         $this->invoice_calc->build();
 
         $this->assertEquals($this->invoice_calc->getSubTotal(), 20);
@@ -170,7 +182,10 @@ class InvoiceInclusiveTest extends TestCase
         $item->cost = 10;
         $item->tax_rate1 = 10;
         $item->tax_name1 = 10;
-
+        $item->tax_rate2 = 0;
+        $item->tax_name2 = '';
+        $item->tax_rate3 = 0;
+        $item->tax_name3 = '';
         $line_items[] = $item;
 
         $item = InvoiceItemFactory::create();
@@ -178,6 +193,10 @@ class InvoiceInclusiveTest extends TestCase
         $item->cost = 10;
         $item->tax_rate1 = 10;
         $item->tax_name1 = 10;
+        $item->tax_rate2 = 0;
+        $item->tax_name2 = '';
+        $item->tax_rate3 = 0;
+        $item->tax_name3 = '';
 
         $line_items[] = $item;
 
@@ -223,14 +242,17 @@ class InvoiceInclusiveTest extends TestCase
         $this->invoice->discount = 0;
         $this->invoice->custom_surcharge1 = 0;
 
+        $this->invoice->tax_name1 = 'dog';
+        $this->invoice->tax_name2 = 'cat';
         $this->invoice->tax_rate1 = 10;
         $this->invoice->tax_rate2 = 10;
 
+        $this->invoice_calc = null;
         $this->invoice_calc = new InvoiceSumInclusive($this->invoice, $this->settings);
         $this->invoice_calc->build();
 
-        $this->assertEquals($this->invoice_calc->getSubTotal(), 20);
-        $this->assertEquals($this->invoice_calc->getTotalTaxes(), 5.46);
+        $this->assertEquals(20, $this->invoice_calc->getSubTotal());
+        $this->assertEquals(5.46, $this->invoice_calc->getTotalTaxes());
         $this->assertEquals(count($this->invoice_calc->getTaxMap()), 1);
         $this->assertEquals($this->invoice_calc->getTotal(), 20);
         $this->assertEquals($this->invoice_calc->getBalance(), 20);
@@ -268,6 +290,10 @@ class InvoiceInclusiveTest extends TestCase
         $this->invoice->tax_rate1 = 10;
         $this->invoice->tax_rate2 = 10;
 
+$this->invoice->tax_name1 = 'dog';
+$this->invoice->tax_name2 = 'cat';
+
+        $this->invoice_calc = null;
         $this->invoice_calc = new InvoiceSumInclusive($this->invoice, $this->settings);
         $this->invoice_calc->build();
 
@@ -316,6 +342,9 @@ class InvoiceInclusiveTest extends TestCase
         $this->invoice->tax_rate1 = 10;
         $this->invoice->tax_rate2 = 10;
 
+$this->invoice->tax_name1 = 'dog';
+$this->invoice->tax_name2 = 'cat';
+
         $this->invoice_calc = new InvoiceSumInclusive($this->invoice, $this->settings);
         $this->invoice_calc->build();
 
@@ -361,6 +390,9 @@ class InvoiceInclusiveTest extends TestCase
         $this->invoice->tax_rate1 = 10;
         $this->invoice->tax_rate2 = 10;
 
+        $this->invoice->tax_name1 = 'dog';
+        $this->invoice->tax_name2 = 'cat';
+
         $this->invoice_calc = new InvoiceSumInclusive($this->invoice, $this->settings);
         $this->invoice_calc->build();