<p>Here is an email from Carnegie Mellon,</p>
<p>"You must use your 2012 tax data. You can make changes to your CSS profile two different ways.</p>
<p>The preferred method to change your CSS profile is to submit a new CSS profile online. This will replace your older incorrect profile and will not delay your financial aid package. "</p>
<p>How can I submit a new CSS profile online to update the tax information.</p>