If you’re preparing for the DELE C1 exam, one of the tasks that often causes uncertainty is the formal letter. This part tests not only your ability to write clearly and correctly in Spanish, but also your command of tone, register, and organization in a formal context.
In this guide, you’ll learn the structure, main differences between the DELE B2 and C1 letters, and practical advice to make your writing more precise, natural, and exam-ready.
Differences Between the DELE B2 and DELE C1 Letter
The DELE C1 letter appears in Task 2 of Test 3: Integrated Skills (Listening Comprehension and Written Expression & Interaction). You will have to choose between two options, and the letter is usually Option 2.
Let’s look at what makes it different from the B2 version.
1. No Listening Task
Unlike in the DELE B2 exam, in the C1 letter you do not need to listen to an audio or refer to it in your writing. Some candidates find this easier, while others prefer the B2 format because it provides more context. Here, your creativity and ability to develop a topic independently are essential.
2. Word Count
The DELE B2 letter should be between 150 and 180 words.
At C1 level, you are expected to write 180–220 words.
Across the entire written test, you’ll write more overall:
- DELE B2: about 300–360 words in total (two tasks).
- DELE C1: about 400–470 words in total.
3. Formal Register
In both levels, the letter is formal. However, in the C1 exam, the expectations are higher. You might have to write:
- A scholarship request letter
- A complaint letter to neighbors
- Or another type of formal communication
The key point is that you must always write in a formal, professional tone using “usted” or “ustedes”, and respect the conventions of formal writing in Spanish.
4. Language and Accuracy
At this level, examiners expect:
- A wider range of vocabulary and grammatical structures
- Accurate spelling and punctuation
- A text that fits perfectly with the situation and recipient
- Clear understanding of the genre conventions — in this case, a formal letter
In other words, your writing should sound natural and confident, as if you were already using Spanish professionally.
Structure of the DELE C1 Letter
As I explain in my book Método DELE C1: Prueba Escrita, the formal letter follows the same general structure as any well-organized text. It consists of three main sections:
- Header (Encabezamiento)
- Body (Desarrollo)
- Closing (Despedida)
Let’s analyze each one.
1. The Header
The header includes the sender’s and recipient’s details, the subject, the date, and a greeting. Example:
Departamento de Becas
Universidad de Madrid
Calle de Alcalá, 12
28014 Madrid
Madrid, 15 de abril de 2025
Muy señores míos:
⚠️ Be careful with punctuation and layout. Spanish conventions are not the same as English ones, especially for greetings and closings.
If the task is an email, only the subject and greeting are required, since other information (like addresses) appears automatically.
2. The Body of the Letter
This is the most important part — where you must demonstrate your ability to communicate ideas clearly and appropriately in a formal context.
In the DELE C1 exam, you are given less guidance than at B2 level. The examiners expect you to already know how to organize your ideas, introduce yourself, explain the reason for writing, and end the letter correctly.
General Structure
Even though the task gives little direction, a good C1 letter typically includes:
- Introduction:
Who you are and why you are writing. Example: Me dirijo a ustedes para solicitar información sobre las becas disponibles para el próximo curso académico. - Development:
Explain your ideas, present arguments, or describe the problem in detail. Use a variety of connectors and vocabulary. Example: Considero que sería muy positivo que se ampliaran las ayudas económicas a los estudiantes internacionales, ya que contribuiría a fomentar la diversidad en las aulas. - Conclusion and Request:
End with a clear summary and a polite request or suggestion. Example: Les agradecería que me informaran sobre los requisitos y plazos de solicitud.
You can find a simple visual outline of this structure on my website:
👉 deleexam.com/podcast/94-carta-dele-C1
That chart, taken from my book, shows the most common phrases and expressions for each section of a formal letter.
3. The Closing
The closing block of the DELE C1 letter is usually slightly more elaborate than at B2 level. It often includes:
- Thanks or final remarks Les agradezco de antemano su atención y colaboración.
- Reference to next steps or expectations Espero que este asunto se resuelva lo antes posible.
En espera de su contestación, les saludo atentamente. - Formal farewell — at C1 level, try to vary beyond just Atentamente. You can use: Cordialmente,
Reciban un cordial saludo,
Les saluda atentamente, - Signature and title, if relevant.
Example:
Agradezco su atención y quedo a su disposición para cualquier aclaración.
Reciban un cordial saludo,
Carmen Madrid
⚠️ Note: Spanish punctuation rules differ from English — sometimes you end with a period, sometimes with a comma, and sometimes with nothing at all.
Types of Formal Letters in the DELE C1 Exam
Just like in B2, DELE C1 letters can belong to different categories, but at this level, using varied formulas and accurate expressions is even more important.
The three main types are:
- Complaint letters (cartas de reclamación)
– Example: reporting a problem or requesting a correction. - Request letters (cartas de solicitud)
– Example: applying for a scholarship or job. - Recommendation or reference letters (cartas de recomendación)
– Example: supporting a colleague or student.
Each type has specific structures and set phrases, all of which you can find in Método DELE C1: Prueba Escrita — available on Amazon and linked on both my website and Spotify podcast.
How the DELE C1 Letter Is Evaluated
To score well, you must show:
- Linguistic range: advanced vocabulary and grammatical variety.
- Accuracy: few or no errors in spelling, gender, agreement, or punctuation.
- Coherence: well-connected ideas and logical organization.
- Appropriateness: the correct tone and register for a formal letter.
Examiners will notice if your Spanish sounds overly “translated” or unnatural. Try to think in Spanish and use authentic expressions typical of formal correspondence.
Final Advice
The DELE C1 letter tests more than your grammar — it evaluates how effectively you can communicate in a real-world formal situation.
Always remember to:
- Plan before writing.
- Check your tone and register.
- Use connectors like por consiguiente, sin embargo, a pesar de ello.
- Leave time to review grammar and accents.
To see examples and sentence starters for each section, visit deleexam.com or listen to the full episode of my podcast about this topic on Spotify.
by Carmen Madrid, accredited DELE examiner and Spanish teacher