What the Additional Information Section Actually Is
The Common App's "Additional Information" section is a 650-word optional text field that appears after your personal statement and activities list. It is the last real-estate on the application, and it is the one most applicants use worst.
Most applicants ignore it entirely. Others stuff it full of extra achievements, half-written essays, and paragraphs trying to say more of what they already said. Both approaches miss the point.
The section exists for a specific purpose: to give the reader context about something elsewhere on your application that needs it. Not context in the abstract, not more personality, not a supplementary essay. Context. About the transcript, the activities list, the recommendations, or your circumstances. It is a utility field, not a stage.
Used correctly, it closes gaps the reader would otherwise have to guess about. Used incorrectly, it creates noise that distracts from a strong application.
The One Rule That Governs Everything
Only use this section if it serves the rest of your application.
If you'd include the information anyway — in an activity description, an essay, a supplement — put it there. If you're writing in this field simply because it's open, delete it. The Common App does not reward you for filling every box.
Every 100 words you add is 100 words of work the reader has to do. Admissions officers are reading thousands of applications on a tight schedule. Extra reading without payoff does not make them think more of you; it makes them think less. Silence is often the strongest signal, and confident applications know when to stop writing.
When You Should Use Additional Information
There are a limited number of situations where this section genuinely helps your application. Use it for:
- Significant time off school. An illness, hospitalization, family emergency, or bereavement that caused you to miss weeks or months of school. The reader sees an absence on the transcript or a drop in grades, and they need to understand why.
- Unusual family or life circumstances that explain patterns in your transcript. A parent's serious illness, a family disruption, housing instability, caregiver responsibilities, or working significant hours to support your household. These are facts that reshape how a reader interprets your record.
- A specific activity or award that didn't fit in the activities list. Some activities don't categorize cleanly — interdisciplinary research, hybrid roles, or projects that don't match the Common App's dropdowns. If an activity needs more than 150 characters of context to make sense, this is the place.
- COVID-specific impacts that shaped your high school experience. The dedicated COVID question has largely been retired, but if the pandemic materially changed your trajectory — lost opportunities, caregiving roles, medical impact — a brief note still makes sense here.
- Non-traditional academic path. Homeschooling, a gap year, moving schools mid-year, attending multiple institutions, or taking a year of online school. Any pattern that looks irregular on paper but isn't.
- A research project or long-term commitment that needs more space. The 150-character activity description cannot hold the methodology, institution, timeline, and outcome of a three-year research project. Use this space to give the reader a clean summary.
- An injury or illness that explains a drop in grades or extracurriculars. A concussion, surgery, chronic condition flare-up, or mental health episode that visibly affected one semester of your record.
When You Should NOT Use It
These are the most common misuses of this section. Avoid all of them:
- To add another essay you felt like writing. If the topic belongs in a supplemental essay, put it in a supplemental essay. This is not a bonus personal statement.
- To re-explain something already clear from your application. If your transcript already shows the AP courses and your activities list already shows the leadership, a paragraph summarizing both is pure redundancy.
- To "show more of who you are." That is what your essays are for. Additional information is not the place to audition your personality.
- To explain a single bad grade in a single class. One B+ doesn't need a paragraph. The exception is if the grade is tied to something systemic — a period of illness, a family situation, a documented accommodation issue.
- To add a list of additional achievements. If they were significant, they'd be in the honors section. A long list of minor awards signals insecurity, not accomplishment.
- To write a second personal statement. The reader already has one.
- To apologize for the application. Never apologize for your record. Explain context, don't plead.
- To re-describe an activity you already listed. If you need more space, use the space in the activities description more efficiently — not here.
Format and Length
Unlike your essays, additional information should be dry. No introduction. No conclusion. No thesis. Straight context, in the most efficient form possible.
Most effective entries are 100–300 words. Many are shorter. A 50-word note can be exactly the right length. If you're hitting 500 words, you're almost certainly over-explaining.
Bullet points are acceptable here and often better than prose. Readers skim this section. Make it easy to skim. Headers, dates, and crisp sentences work better than flowing paragraphs.
What Strong Additional Information Entries Actually Look Like
Here are three examples that demonstrate the right register.
Example 1 — Medical context (97 words)
In the spring of my sophomore year, I was diagnosed with mononucleosis and missed six weeks of school, including three weeks of final exams. My grades that semester (two Cs in courses I had previously scored A-minuses in) reflect that period rather than my typical academic performance. I made up the coursework over the summer through my school's credit recovery program and returned to straight As in junior year. My counselor can provide additional detail if useful.
Example 2 — Research project context (148 words)
Independent Research: Computational Modeling of Protein Folding
Institution: Dr. Sarah Chen's lab, University of Washington Department of Bioengineering
Duration: June 2024 – present (approximately 15 hours/week during school year; 40 hours/week summer)
Role: Independent student researcher
Project summary: I built a Python-based pipeline using AlphaFold2 outputs to analyze conformational shifts in membrane proteins associated with cystic fibrosis. My work is a sub-project within Dr. Chen's broader CFTR research. First-author abstract accepted to the regional ISEF competition (March 2025). A manuscript is currently in preparation with Dr. Chen as senior author; submission expected Fall 2026.
This project did not fit the activities list format because of the technical detail required to describe the methodology and outcomes accurately.
Example 3 — Additional awards (76 words)
Awards not listed in the Honors section due to space:
- National Merit Commended Student (2024)
- Regional Science Fair, 2nd place — Biochemistry division (2024)
- State Mathematics League, top 5% statewide (2023, 2024)
- School Book Award in Classics, awarded to one junior annually (2024)
- National Latin Exam, Gold Medal, Level IV (2024)
Notice what these examples don't do. They don't editorialize. They don't dramatize. They don't apologize. They don't ask for sympathy. They give the reader exactly what the reader needs to interpret the rest of the application, and then they stop.
The Medical and Mental Health Question
This is the hardest category because it's personal, because it can feel like a risk to disclose, and because writing about it well requires a specific discipline.
The rule: include it if it's material to understanding your transcript or activities, and keep it factual and brief. Admissions readers do not want a detailed medical narrative. They are not therapists, and your application is not the place for the experience itself. What matters is the impact on your application.
A useful test: could your note be read aloud in a meeting without making anyone uncomfortable? If yes, you've pitched it correctly. If it reads like a personal essay about your struggle, rewrite it.
State what happened, when, how it affected your record, and what changed afterward. Do not describe symptoms in detail. Do not narrate the emotional arc. Do not thank anyone. Context, not confession.
How to Write About a Learning Difference or Disability
Treat this as clinical information, not identity content. The structure that works:
- What the diagnosis is.
- When you were diagnosed.
- What accommodations you use (extended time, assistive technology, etc.).
- Briefly, what it shapes about how you learn — particularly if it explains a pattern on your transcript.
Do not editorialize. Do not describe your disability as a superpower, a defining strength, or a source of insight. If you want to write about those dimensions of your experience, the personal statement is the place. This section is context, not essay. A reader who wants to understand how a learning difference shaped your academic path will find what they need in four clean sentences.
Common Mistakes
- Writing additional information as another essay, with a hook, a narrative arc, and a closing reflection.
- Being apologetic or defensive about any part of your record.
- Including information that's already visible elsewhere on the application.
- Over-explaining a single incident — 300 words on one missed exam.
- Making it emotional when it should be informational.
- Submitting a list of awards that aren't actually significant enough to list.
- Exceeding 500 words when 100 would do the job.
- Writing about a topic only because you ran out of space in your supplements.
How This Differs From the School Report and Counselor Letter
Your counselor has their own space to explain context. If your school closed for two months after a natural disaster, your counselor's letter and the school profile almost certainly cover it — you don't need to. If you spent junior year caring for a sick parent, your counselor may address it in their letter, which is usually more credible coming from them than from you.
Before writing anything in this section, ask your counselor what they plan to address. Coordinate. If your counselor has it covered, stay silent. If the context is too personal for a counselor to address without your permission, you may be the right voice. Either way, avoid redundancy. Two accounts of the same event do not reinforce each other — they read as rehearsed.
The Review Question
Before submitting, apply a single test to anything you've written in this section: does this help the reader understand something they wouldn't otherwise understand?
If yes, keep it. Tighten it, but keep it.
If the answer is "it shows more of my personality," "it adds depth," "it gives a fuller picture," or "it felt important to include" — cut it. Those are reasons for essays, not for this field.
What This Section Signals to Admissions
How you use this section signals your judgment. That's what the admissions reader is actually evaluating here, not the content of what you write but the fact that you wrote it at all.
Applicants who fill the field with extra achievements and restated activities look like they're grasping. They read as insecure — as if the rest of the application isn't enough, so they're padding.
Applicants who use the field strategically and sparingly, to close a gap that genuinely needs closing, look composed. They demonstrate that they understand what the application is and isn't, and they trust the rest of their materials to do their job.
Applicants who leave the field blank look confident. Blank is almost always better than noise.
The quiet discipline of a strong applicant is visible in every section they chose not to fill. Don't add noise just because the field is open.
If you want structured feedback on whether your additional information entry adds signal or noise, run it through our essay editor before submitting. For broader guidance, see our guides to writing the Common App personal statement, the 2025 Common App prompts, and how to think about college essay word limits.