The Question Every Candidate Asks
You've just finished your CV. It's clean, clear, well-structured. Then comes the next question: do you need a cover letter too?
The short answer: it depends. And not just on the job posting.
The honest answer: in most cases, a mediocre cover letter does more harm than no letter at all. But a well-constructed one can make the difference in a competitive field. It all comes down to context.
When a Cover Letter Is Truly Required
The Job Posting Explicitly Asks for One
If the listing says "CV + cover letter," you can't ignore it. Sending a CV alone in that case reads as inattention or carelessness — the exact opposite of what you want to project.
The same goes for online application forms with a "cover letter" or "message" field: don't leave it blank.
Industries and Roles Where It's Expected by Convention
Some sectors have a formal application culture where the cover letter remains the norm, even when not explicitly required:
- Public sector and civil service — the letter is a standard part of the application file
- Education, training, social work — recruiters expect a personal expression of motivation
- Consulting, audit, corporate finance — the letter tests your written communication quality
- Journalism, communications, publishing — the letter is itself a sample of your writing
In these sectors, not including one may signal unfamiliarity with professional conventions.
Your Profile Has Something to Explain
Some situations call for a letter even without being required:
- Career change: your CV shows a pivot — the letter explains why. Without it, the recruiter may move on before understanding the logic. See our article on career change CV.
- Employment gap: if your CV shows a significant break, a letter is the natural place to briefly contextualize it. See CV gaps.
- Unconventional application: you're applying for a role where your CV doesn't tick the usual boxes — the letter bridges who you are with what the role requires.
When a Cover Letter Is Optional
The Posting Doesn't Mention One in a Tech or Startup Context
In startups, tech companies, and many modern SMEs, the cover letter is often seen as an outdated formality. Recruiters look at the CV, GitHub profile, portfolio — not a page of formatted text.
If the posting doesn't ask for a letter and you're applying in this kind of environment, sending a generic letter can actually hurt you (it signals you may have used a template without thinking).
Your CV Already Speaks for Itself
If your CV is clear, targeted, with a strong profile summary and well-detailed experiences (see how to write a perfect CV), it already says who you are and what you bring. Repeating the same information in a letter adds nothing.
The CV profile summary plays a similar role to a letter introduction — without the formality.
You're Applying at Volume
If you're sending many applications for similar roles, writing a genuine letter for each one is unrealistic. In that case, invest your energy in a CV perfectly tailored to each offer rather than attaching the same letter to every application.
When a Cover Letter Actually Hurts
A Generic Letter Sent Everywhere
This is the worst scenario. "Dear Hiring Manager, I am writing to express my strong interest in the position of X at your esteemed company." The recruiter reads this twenty times a week. It immediately signals that you haven't personalized your application.
A generic letter is often worse than no letter. It takes reading time and adds nothing.
A Letter That Repeats the CV Word for Word
Reformulating your chronological background in a letter is a common mistake. The recruiter has already read your CV — or will read it after. The letter must bring something different: the why, the vision, what you can't fit into a table.
A Letter That's Too Long or Too Personal
More than one page: too long. More than two paragraphs about your personal life: off-topic. A cover letter isn't an autobiography — it's a targeted commercial argument.
What a Good Cover Letter Actually Adds
When done well, a cover letter adds three things your CV can't say:
- Why this specific application: why this company, this sector, this moment in your career — not a generic answer, a real reason
- What you understand about the role: showing you read the posting and thought about what the recruiter actually needs
- What your CV doesn't show: a cross-functional skill, a passion related to the sector, a relevant personal experience
These three elements, structured in three short paragraphs, make an effective letter. Nothing more.
Cover Letter: Format and Length
- Length: 250–400 words maximum. Three to four paragraphs.
- Format: same font as the CV, same visual consistency. If you send both as PDFs, the style should be uniform.
- Tone: professional but direct. Avoid flowery formalities. Start with a strong hook, not "I am writing to express..."
- Personalization: at least one sentence specific to the company (a product, a recent initiative, a news article). That's what makes the difference.
To know which skills and keywords to highlight in your letter, read our article on how to find the right CV keywords for your sector — the same principles apply.
What Often Replaces the Cover Letter
In many modern contexts, the letter is replaced by more effective elements:
- A personalized message in the online application (1–3 sentences in the "message" field, not a full letter)
- An optimized LinkedIn profile that the recruiter will check anyway (see CV and LinkedIn: how to align them)
- A portfolio or work samples for creative or technical profiles
- A referral from a mutual contact — infinitely more powerful than any letter
All these CV supplements often have more impact than a standard cover letter.
The Practical Verdict
| Situation | Cover letter? | |---|---| | Job posting explicitly requires one | Yes, mandatory | | Public sector / education / consulting | Yes, by convention | | Career change or unconventional profile | Yes, strongly recommended | | Startup, tech company, modern SME (posting silent) | No, unless you have something strong to say | | High-volume applications | No, focus on the CV | | You have nothing specific to say | No, nothing is better than an empty letter |
Build a CV That Makes the Letter Almost Unnecessary
The best way to stop worrying about cover letters: have a CV so targeted and clear that it answers the question "why this person?" on its own.
CV Creator lets you build that CV — with a profile summary that does the work of a letter introduction, quantified experience descriptions, and ATS-optimized templates. No sign-up required, one-time €2, unlimited CVs for 2 hours.
Further reading:
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