As soon as possible after January 1 of your child's senior year in high
school, apply
for financial aid by completing the FAFSA
(Free Application for Federal Student Aid). Completing
the FAFSA explains how.
Step 2: Return the FAFSA electronically or by mail. You will receive a Student Aid Report which will tell you if you are eligible to receive financial aid. If you are eligible, the report will show your estimated family contribution (EFC). The EFC indicates how much money you are expected to contribute toward your child's education.
U.S. Department of Education
As soon as possible after January 1 of your child's senior year in high
school, 
apply
for financial aid by completing the 
Step 2: Return the FAFSA 
If you are eligible, the report will show your estimated family contribution (EFC). The EFC indicates how much money you are expected to contribute toward your child's education. 
For technical questions about the web site: