Of all the parts of a US university application, the letter of recommendation is the only one you do not write yourself and yet it is entirely your responsibility to manage. Who you ask, when you ask, how you prepare your teachers, and what a genuinely strong letter actually contains: all of this depends on you.
For students in Germany at German Gymnasien or at international schools this creates a specific challenge. German teachers are unfamiliar with what Harvard, Yale or Princeton expect from a letter of recommendation. The result, too often, is a polite, formal letter that says nothing useful. Not because the teacher did not try, but because they did not know what the format requires.
This guide gives you everything you need to manage the recommendation letter process completely and to give your teachers a clear enough framework to write something genuinely strong.
Note: QUICK REFERENCE: CommonApp requires 2 Teacher Evaluations + 1 School Report (Counselor Recommendation). Harvard also accepts 1-2 optional Additional Recommendations. For the broader Harvard application process, see our Harvard admissions guide. All are submitted digitally through CommonApp your teachers receive an automated link by email. The deadline for all letters is the same as your application deadline.
What a US Letter of Recommendation Is — and What It Is Not
In Germany, a school reference is an official document formal, objective, produced on school letterhead. It confirms grades, behaviour, and general academic suitability. Often interchangeable between students.
A US letter of recommendation is something fundamentally different. It is a personal letter from a teacher who knows you well written in first person, with specific anecdotes, concrete examples, and a clear message: this person will matter at your university.
Admissions officers at Harvard and Yale read thousands of recommendation letters. For the wider application strategy, see our Ivy League admissions guide. What stays with them are not polite summaries of grades. They are letters that tell a specific story a scene from class, a moment of intellectual discovery, a quality that is visible nowhere else in the application.
How Many Letters Do You Need?
| CommonApp Standard | 2 Teacher Evaluations + 1 School Report (Counselor) |
|---|---|
| Harvard additionally | 1-2 Additional Recommendations optional e.g. a mentor, research supervisor |
| Yale, Princeton, Columbia | 2 Teacher Evaluations + 1 Counselor + optional 1 further |
| MIT | 2 Teacher Evaluations (at least 1 STEM), 1 Counselor |
| Oxford UCAS | 1 Academic Reference from a teacher in your chosen subject |
| LSE UCAS | 1 Academic Reference, university-specific requirements |
Note: Important for students at German Gymnasien: The ‚School Counselor‘ role in CommonApp does not exist at most German schools. It is best filled by a trusted teacher, a deputy headteacher, or the headteacher whoever knows your academic trajectory best. At international schools with dedicated college counsellors, this person takes the role automatically.
Who Should You Ask? Choosing the Right Recommenders
The core principle: specificity over status
The most common mistake: asking the headteacher or the most popular teacher because they sound impressive. Wrong criterion. The question is not: who has the highest status? The question is: who knows me best in an academically relevant context?
A maths teacher who has taught you for two years, helped you after class multiple times, and knows exactly how you approach difficult problems is more valuable to your application than a headteacher who barely knows your name.
What makes a strong recommender
- Has taught you for at least one academic year ideally two
- Knows you in an academically relevant subject (not just as a pleasant person)
- Has witnessed specific situations where you think, question, or grow
- Can write in English, or is willing to write in German with a qualified translation provided
- Has enough time and is genuinely willing to write more than a standard school reference
Subject areas and university preferences
| STEM universities (MIT, Caltech) | At least 1 letter from a science or maths teacher |
| Humanities/social sciences | 1 letter from a core subject (English, History, German, Philosophy) |
| Harvard, Yale, Princeton | Diversity is good: 1 STEM + 1 humanities — shows academic breadth |
| Oxford/Cambridge | Exclusively from the subject area you are applying to study |
| Business (LSE, Wharton) | Maths or Economics + a second perspective (e.g. Social Studies) |
When Should You Ask? The Timeline
| Grade 11 (Spring) | Begin building relationships with potential recommenders |
| End of Grade 11 / Summer | Informal conversation ask if they would in principle be willing |
| August-September Grade 12 | Formal request minimum 8-10 weeks before the application deadline |
| No later than early October | All recommenders have received their CommonApp link and all materials |
| November 1 (REA deadline) | All recommendation letters must be submitted in CommonApp |
The most critical point: ask your teachers a MINIMUM of 8 weeks before the submission deadline. Teachers in Germany have no experience with the CommonApp portal and need time to navigate the system and write something genuinely good. Asking in October for a November 1 deadline risks a rushed, half-hearted letter.
How to Prepare Your Teachers — The Most Important Step
This is where the biggest difference lies between students in Germany who receive strong letters and those who receive disappointingly generic ones. Your teacher does not know what Harvard expects but you can help them.
What to give your recommender
- A brief cover note in English: explain which universities you are applying to, what you want to study, and why your relationship with this teacher has been important to you
- Your CommonApp Activity Summary: a list of your extracurricular activities with short explanations so the teacher can see what they might mention
- A ‚brag sheet‘ or memory document: remind the teacher of 2-3 specific moments or projects from their class that showed something about you — a presentation, a discussion, an experiment
- A clear timeline: when the letter must be submitted
- A short explanation of how CommonApp works: what the teacher will receive and what they need to do
What you should NOT do
- Suggest or provide a draft of the letter yourself this is unethical and identifiable
- Ask if you can read the letter in CommonApp you are explicitly asked to waive your right to view. Do it. Admissions offices know when applicants do not waive this right, and it functions as a trust signal. Always waive.
- Let several weeks pass without a check-in send a friendly reminder one week before the deadline
What a Strong Letter Contains — and What Weak Letters Lack
Strong letters: what admissions officers want to see
- A specific anecdote or scene from class not general descriptions
- Concrete examples of intellectual curiosity, growth or character
- A statement that shows genuine enthusiasm not just fulfilment of a duty
- The perspective of someone who has seen the applicant in a context not visible elsewhere in the application
- A clear, personal recommendation at the end not a summary
Weak letters: what admissions officers read too often
- ‚Student X was always very engaged and reliable‘ too generic, no evidence
- A list of grades and achievements already visible elsewhere in the application
- Formal, distant language that reads like an official attestation
- Short letters (under one page) that signal a lack of genuine engagement
- Excessive superlatives without concrete basis ‚the best student I have ever taught‘ without supporting evidence is worthless
The Difference Between a German School Reference and a US Letter of Recommendation
| Format | DE: Official document on school letterhead | US: Personal letter, no fixed format |
| Perspective | DE: Distant, third person | US: First person, personally engaged |
| Content | DE: Grades, behaviour, general suitability | US: Specific anecdotes, character, growth |
| Length | DE: Often 1 page by convention | US: 1-2 pages — more signals teacher engagement |
| Tone | DE: Formal, academic | US: Warm, specific, persuasive |
| Language | DE: German | US: English the letter must be submitted in English |
Note: For teachers who cannot write in English: There are two options. (1) The teacher writes in German and you arrange a qualified translation — CommonApp accepts recommendation letters with a translator’s note appended. (2) The teacher writes directly in English. Option 2 is strongly preferable whenever possible, because it gives admissions officers direct access to the letter without intermediary.
The CommonApp Process: How It Works Technically
- Enter your recommenders‘ email addresses in your CommonApp profile under ‚Recommenders and FERPA‘
- CommonApp automatically sends each recommender an invitation link by email
- The teacher creates a free CommonApp account and completes the Teacher Evaluation form
- You can see in your dashboard whether each letter has been submitted (but not the content if you waived your right to view)
- When you submit your application, all submitted letters are automatically included
Note: FERPA Waiver: When CommonApp asks whether you waive your right to view the recommendation letters always waive it. ‚Waive your right to view.‘ Admissions offices know this, and letters for which no waiver has been given are treated with less confidence. This is a standard convention across all US university admissions.
Special Situation in Germany: When Your School Has No College Counsellor
Almost all US universities require, in addition to the Teacher Evaluations, a School Report completed by a School Counsellor. In Germany, this role does not exist in most schools.
Recommended solutions in order of preference:
- A Beratungslehrer or Vertrauenslehrer who knows you well
- A deputy headteacher who has had contact with your academic path
- The headteacher themselves if they know your academic record
- At international schools with dedicated college counsellors: this person fills the role automatically
Note: The School Report is generally weighted less heavily than the Teacher Evaluations. Direct your main energy toward the quality of your teacher letters.
Frequently Asked Questions
Can my teacher submit the letter in German?
Technically possible with a qualified translation appended. But letters in English are always strongly preferable they give admissions officers direct access to the content without an intermediary step, and signal that your teacher was fully engaged with the process.
What if a teacher declines?
Respect the decision without pressure. Ask the next person on your list. Teachers who hesitate usually also write weaker letters. Someone who agrees from genuine conviction writes better than someone who only reluctantly consents.
Do IB teachers write better recommendations for US universities?
Not necessarily better but often more familiar with the format. IB teachers at international schools in Germany often have experience writing letters for US university applications and understand what the format requires. If you have the choice between an equally well-acquainted IB teacher and a Gymnasium teacher with no experience of the format, give both the same preparation materials. The quality of the relationship matters more than the teacher’s prior experience with the format.
Should I submit a third optional letter?
Only if it adds genuine value from a mentor, research supervisor, internship manager or coach who can show something your teachers cannot. Two strong letters are better than three weak ones. The third letter is an opportunity, not an obligation.