<p>
[quote]
What is a Student Aid Report (SAR)?
A Student Aid Report (SAR) is a document you will receive after your FAFSA is processed. Your SAR will list all of the answers you provided on your FAFSA. You should review these answers carefully to make sure they are correct. If you need to make any changes, you can do so on the SAR and mail it back to the address provided, or you can go to <a href="http://www.fafsa.ed.gov%5B/url%5D">www.fafsa.ed.gov</a> and select "Make Corrections to a Processed FAFSA" from the FAFSA Follow-up section.</p>
<p>Your SAR will also contain your EFC (Expected Family Contribution), which measures your family's financial strength, and is used to determine your eligibility for federal student aid. Your school will use this number to decide how much financial aid you are eligible to receive based on your school's cost of attendance.
[/quote]
</p>
<p>Yes you can estimate now an correct later.</p>