Razi H. answered 11/27/25
Harvard Grad & College Counseling Expert - 50 Best Harvard Essays
Harvard interviewer and college consultant here.
It depends on a few factors:
What tier of colleges are you applying to?
Some colleges place less emphasis on the more time-consuming subjective parts of the application, like essays. They also tend to have fewer supplements. For those schools, as long as your activities list and SAT scores are locked and loaded, you're in good shape—you might start seriously working on applications in the summer before senior year.
Other schools—particularly highly selective ones—require dozens of supplemental essays on top of your Common App essay. For these, you'll want to start earlier. I typically recommend students begin brainstorming and drafting their main essay in the spring of junior year, then tackle school-specific supplements over the summer and into early fall of senior year.
That said, this timeline is just for the application itself.
The actual college process starts much earlier—usually freshman year with exploration. This is when you're trying new activities, discovering what you care about, and building the foundation of experiences you'll eventually write about. Sophomore and junior years are for standardized testing, developing leadership roles, deepening your involvement in activities, and pursuing meaningful projects or volunteer work.
So while you might not be writing essays until junior/senior year, the groundwork for a compelling application starts the moment you enter high school. The students with the strongest applications aren't rushing to manufacture a story in the summer before senior year—they're reflecting on years of genuine engagement and growth.