Description:

Using this snippet, you will be able to exclude google analytics tracking code for logged in users.

You just need to past the following code to your function.php or use as standalone plugin with the proper customization

The Code:

// function for inserting Google Analytics into the wp_head 
add_action('wp_footer', 'wpc_ga'); 
function wpc_ga() { 
   if ( !is_user_logged_in() ) { // not for logged in users 
?> 
        <script type="text/javascript"> 
          var _gaq = _gaq || []; 
          _gaq.push(['_setAccount', 'UA-XXXXXXXX']); // insert your Google Analytics id here 
          _gaq.push(['_trackPageview']); 
          _gaq.push(['_trackPageLoadTime']); 
          (function() { 
            var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; 
            ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; 
            var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); 
          })(); 
        </script> 
<?php 
   } 
}