The Additional Information section is one of the most misused parts of the Common App. Here is exactly how to use it well.
When to Use It
Explaining academic record context: A GPA dip due to illness, family hardship, an undiagnosed learning disability that was later addressed, or a specific difficult circumstance. Keep it brief and factual: what happened, how it affected your record, what the situation looks like now. Additional significant activities: If you have genuinely significant activities beyond the 10-slot limit — a major job, a meaningful project, a significant honor — list them briefly here. Not a 11th activity you're padding in; a genuinely consequential thing that belongs in your file. Unusual transcript elements: Early college, homeschool transcripts, alternative grading systems, grade conversion from international systems.
When NOT to Use It
Do not write a second personal statement. Do not repeat achievements already listed in your activities section or essays. Do not add minor context that doesn't meaningfully change how admissions officers should interpret your application. Do not write multiple paragraphs when 2–3 sentences would suffice.
Leaving It Blank
If you don't have something genuinely important to add, leave it blank. Submitting filler — weak context, minor explanations, or redundant information — signals that you don't know what belongs in this section, which is itself information admissions officers notice.