diff --git a/app/Controllers/Sales.php b/app/Controllers/Sales.php
index f9868ee69..76b3a8bfe 100644
--- a/app/Controllers/Sales.php
+++ b/app/Controllers/Sales.php
@@ -937,7 +937,10 @@ class Sales extends Secure_Controller
                 new Token_customer((array)$sale_data)
             ];
             $text = $this->token_lib->render($text, $tokens);
-            $sale_data['mimetype'] = mime_content_type(FCPATH . 'uploads/' . $this->config['company_logo']);
+            $sale_data['mimetype'] = $this->email_lib->getLogoMimeType();
+
+            // Build img_tag for email views that need it (receipt_email.php)
+            $sale_data['img_tag'] = $this->email_lib->buildLogoImgTag();
 
             // Generate email attachment: invoice in PDF format
             $view = Services::renderer();
@@ -974,13 +977,7 @@ class Sales extends Secure_Controller
 
         if (!empty($sale_data['customer_email'])) {
             $sale_data['barcode'] = $this->barcode_lib->generate_receipt_barcode($sale_data['sale_id']);
-            $sale_data['img_tag'] = '';
-
-            $logo_path = FCPATH . 'uploads/' . $this->config['company_logo'];
-            if (!empty($this->config['company_logo']) && file_exists($logo_path)) {
-                $logo_data = base64_encode(file_get_contents($logo_path));
-                $sale_data['img_tag'] = '<img id="image" src="data:image/png;base64,' . $logo_data . '" alt="company_logo">';
-            }
+            $sale_data['img_tag'] = $this->email_lib->buildLogoImgTag();
 
             $to = $sale_data['customer_email'];
             $subject = lang('Sales.receipt');
diff --git a/app/Libraries/Email_lib.php b/app/Libraries/Email_lib.php
index 914344567..eb8a9c24c 100644
--- a/app/Libraries/Email_lib.php
+++ b/app/Libraries/Email_lib.php
@@ -82,4 +82,40 @@ class Email_lib
 
         return $result;
     }
+
+    /**
+     * Gets the mime type of the company logo file.
+     *
+     * @return string Mime type or empty string if logo doesn't exist
+     */
+    public function getLogoMimeType(): string
+    {
+        $logo_path = FCPATH . 'uploads/' . $this->config['company_logo'];
+
+        if (!empty($this->config['company_logo']) && file_exists($logo_path)) {
+            $mimeType = mime_content_type($logo_path);
+            return $mimeType !== false ? $mimeType : '';
+        }
+
+        return '';
+    }
+
+    /**
+     * Builds an img tag for the company logo to use in email templates.
+     *
+     * @return string HTML img tag with base64-encoded logo, or empty string if no logo
+     */
+    public function buildLogoImgTag(): string
+    {
+        $mimeType = $this->getLogoMimeType();
+
+        if ($mimeType === '') {
+            return '';
+        }
+
+        $logo_path = FCPATH . 'uploads/' . $this->config['company_logo'];
+        $logo_data = base64_encode(file_get_contents($logo_path));
+
+        return '<img id="image" src="data:' . $mimeType . ';base64,' . $logo_data . '" alt="company_logo">';
+    }
 }