diff --git a/index.html b/index.html
index 6d45cc9..ed4068c 100644
--- a/index.html
+++ b/index.html
@@ -13,6 +13,15 @@
   <meta property="og:image" content="https://spiritstack.github.io/Free-Average-Stock-Price-Calculator/image.png">
   <title>Average Stock Price Calculator - Track Your Investments Easily</title>
   <link rel="stylesheet" href="styles.css">
+  <!-- Google tag (gtag.js) -->
+  <script async src="https://www.googletagmanager.com/gtag/js?id=G-S9BL9ZL20F"></script>
+  <script>
+    window.dataLayer = window.dataLayer || [];
+    function gtag(){dataLayer.push(arguments);}
+    gtag('js', new Date());
+  
+    gtag('config', 'G-S9BL9ZL20F');
+  </script>
 </head>
 <body>
   <div class="container">
@@ -84,6 +93,38 @@ <h3>Can I use this tool for multiple stocks?</h3>
   <script src="script.js"></script>
   <script>
     document.querySelectorAll("time").forEach(el => el.textContent = new Date().getFullYear());
+    
+    // Track button clicks
+    document.getElementById("add-transaction").addEventListener("click", function() {
+        gtag('event', 'calculate_clicked', {
+            'event_category': 'User Interaction',
+            'event_label': 'Calculate Button'
+        });
+    });
+    
+    document.getElementById("reset-transactions").addEventListener("click", function() {
+        gtag('event', 'reset_clicked', {
+            'event_category': 'User Interaction',
+            'event_label': 'Reset Button'
+        });
+    });
+    
+    // Track form inputs
+    document.getElementById("quantity").addEventListener("change", function() {
+        gtag('event', 'stock_quantity_entered', {
+            'event_category': 'Form Input',
+            'event_label': 'Stock Quantity Field',
+            'value': this.value
+        });
+    });
+    
+    document.getElementById("price").addEventListener("change", function() {
+        gtag('event', 'stock_price_entered', {
+            'event_category': 'Form Input',
+            'event_label': 'Stock Price Field',
+            'value': this.value
+        });
+    });
   </script>
 </body>
 </html>
