Do hiring managers actually read cover letters?

Yes — and the data is unambiguous. Robert Half (2025) surveyed over 2,000 hiring managers and found that 78% look more favorably on candidates who include cover letters, even when the job posting does not require one. This is not a marginal preference. It is a clear majority.

The question is not whether cover letters matter — it is how much they matter and when they matter most. Here is what the latest research tells us:

  • ResumeGo (2025): Applications with tailored cover letters were 53% more likely to receive interview callbacks than applications without one. This was a controlled study of 10,000 job applications across multiple industries.
  • LinkedIn Talent Solutions (2025): The average corporate job posting receives over 250 applications. With that volume, hiring managers use every signal available to differentiate candidates — and the cover letter is one of the strongest signals.
  • NACE (2025): 56% of employers rank keyword relevance in cover letters as the most important screening factor, above formatting and writing quality.

The "cover letters are dead" narrative persists because many candidates submit generic ones. Generic cover letters are, functionally, dead — they do nothing to differentiate you. Tailored cover letters are very much alive and demonstrably effective.

How recruiters actually read cover letters

Understanding how recruiters process cover letters changes how you write them. According to a Ladders (2024) eye-tracking study, here is what happens:

The 30-second scan:
Recruiters spend roughly 30 seconds on an initial cover letter scan. During this time, they focus on:

  1. The opening sentence (highest visual attention)
  2. The company name and role title (verifying it is tailored)
  3. Numbers and metrics (they pop visually)
  4. The closing and call to action

What triggers a full read:

  • A specific company reference in the opening
  • A quantified achievement that is clearly relevant
  • A personal connection or referral mention
  • Something unexpected or distinctive in the first two sentences

What triggers a skip:

  • "I am writing to express my interest..." — instant pattern recognition
  • A wall of text with no visual breaks
  • Generic language that could apply to any company
  • Obvious template language or wrong company name

This scan-first behavior means your letter needs to be front-loaded with the strongest content. The most important information goes in the first paragraph, not the last. For strategies on crafting an attention-grabbing opener, see our cover letter opening lines guide.

I do not read cover letters word by word. I scan for three things: Do they know what role they are applying for? Did they mention us specifically? Is there a number that tells me what they have achieved? If all three are there, I read the full letter.

— An HR Director at a Fortune 500 company

When cover letters matter most

Cover letters are not equally important for every application. Here is when they carry the most weight:

High-impact situations:

  • Competitive roles — When hundreds of qualified candidates apply, the cover letter differentiates. This is the norm for top tech companies, prestigious firms, and desirable locations.
  • Career transitions — A resume shows where you have been. The cover letter explains where you are going and why. See our guide on cover letters for career changers.
  • Senior and leadership roles — Communication skills matter more at higher levels. A well-written cover letter demonstrates the strategic communication ability expected of leaders.
  • Client-facing roles — Sales, consulting, account management — roles where writing quality directly reflects job performance.
  • Small companies and startups — Smaller teams read applications more carefully. Your letter may be read by the founder or your future manager directly.

Lower-impact situations:

  • High-volume hourly positions — Applications are processed quickly, and cover letters may not be reviewed
  • Roles that explicitly say "no cover letter" — Respect the instruction
  • Referral applications where you know the hiring manager — The relationship carries more weight, though a letter still adds polish

Even in lower-impact situations, including a cover letter rarely hurts. The downside is 20-30 minutes of effort. The upside is a 53% increase in callback rate. That math works in your favor every time.

The ROI of writing a cover letter

Let us quantify the return on investment:

Time investment: 20-30 minutes per tailored cover letter (after you have your template and achievement library ready)

Return: 53% higher callback rate (ResumeGo, 2025)

The math: If you apply to 20 jobs without cover letters and get 3 callbacks (15% rate), adding tailored cover letters at the same callback improvement rate would yield approximately 4-5 callbacks. That is 1-2 additional interview opportunities — potentially the difference between a prolonged job search and a successful one.

What about the "optional" question?
When a job posting says a cover letter is "optional," the majority of candidates skip it. This is precisely why you should include one. Robert Half (2025) data shows that 78% of hiring managers favor candidates who include cover letters even when not required. "Optional" is an opportunity, not a suggestion to skip.

Making it efficient:
The 20-30 minute investment per letter can be reduced significantly with the right workflow:

  1. Build a library of 5-6 achievement paragraphs you can mix and match
  2. Create a template with consistent opening and closing structures
  3. For each application, select the 2 most relevant achievements and customize the company-specific details
  4. Or use LetterShot's cover letter generator to produce tailored letters from your inputs in minutes

The question is not "do cover letters matter?" — the data clearly says they do. The question is "are you willing to invest 20 minutes for a 53% better chance at an interview?" For most job seekers, that is an easy yes.