Getting out of Early Decision?

I got accepted to AU under ED and I was expecting to get more financial aid than I received. As of now, I don’t see how it would be possible for me to attend based on my family’s ability to pay. Has anyone withdrew an ED acceptance before? From American? If so, were you blacklisted from other universities? Any help, suggestions, and advice would be greatly appreciated.

You can withdraw if the financial aid is insufficient. There should not be consequences. But did you run the net price calculator on the AU website before you applied? Is your offer way off from that result?