You'll get a Student Aid Report and you will need to review it to make sure it is correct and complete.
what else happens when the report is ready?
The school you listed on your FAFSA form will use your information to determine your eligibility for federal and possibly nonfederal financial aid
What should I do if I want to update my FAFSA form if the number of family members changes as a result of a change in my marital status?
in that case you should speak to the financial aid office of the school you plan to attend to determine if you can update the FAFSA form
What if you made a mistake in what you reported on the FAFSA?