Applying early means submitting your application well before the regular deadline, usually in the fall, and hearing back sooner. But "early" covers plans with very different rules, and mixing them up can cost you real money or real options. Here's the difference.
Early Decision (ED): binding
Early Decision is a binding agreement. If you're admitted, you commit to attending and withdraw your other applications. You can usually apply ED to only one school. Because you're committing before you see other offers, you can't compare financial aid packages, which makes ED a poor fit for families who need to weigh costs. Some schools offer a second round, often called ED II, with a later deadline.
Early Action (EA): not binding
Early Action gives you an earlier answer without the commitment. You can usually apply to several EA schools and you generally have until the normal reply date to decide. For most students, EA gets you the benefit of applying early without giving up the chance to compare offers.
Restrictive or single-choice early action
A few schools offer a restrictive version. It's still non-binding, but it limits you from applying early to certain other schools. The exact limits differ by college, so read each school's policy carefully instead of assuming.
How to decide
Ask three questions. Is this school clearly my first choice? Have I finished a strong application, including essays, by the early deadline? And can my family commit without comparing aid offers? If the answer to any of these is no, Early Action or regular decision is usually the better fit. Applying early only helps if the application you submit is as strong as the one you'd send later.
Some colleges publish their early and regular admit rates in their Common Data Set. These numbers can look dramatic, but early pools often include a higher share of recruited athletes and other specially evaluated applicants. Don't assume the gap applies to you.
The honest bottom line
Use ED only for a school you'd attend at any price, and only if you can afford it without comparing offers. Use EA when you want an answer early and want to keep your options open. Always confirm each college's own rules on its admissions site, because they change.