FresumeA strong resume gets you noticed, but a careless cover letter can undo that work in a single paragraph. Most rejections at this stage come down to a short list of avoidable habits: a recycled opening, a wall of text, or a company name left over from the last application. This guide walks through 12 cover letter mistakes to avoid in 2026, why each one costs you, and exactly how to fix it, with example lines you can borrow the logic from.
What are the most common cover letter mistakes?
The most common cover letter mistakes are generic openings, repeating your resume, running too long, typos, the wrong company name, addressing “To Whom It May Concern,” and writing only about yourself. Each one signals a rushed, untailored application. The fix is similar in spirit every time: research the role, speak to a real need, and edit ruthlessly before you send.
| Mistake | Why it hurts | Do this instead |
|---|---|---|
| Generic opening line | Sounds like every other applicant | Lead with a specific hook tied to the role |
| Repeating your resume | Adds nothing new and wastes attention | Tell the story behind two or three wins |
| Running too long | Busy readers skim or skip | Keep it to one page, 250 to 400 words |
| Typos and grammar slips | Undercut your claim to be careful | Read it aloud and run a spell-check |
| Wrong company name | Proves you copy-pasted | Confirm every name and role before sending |
| “To Whom It May Concern” | Feels cold and out of date | Find and name the hiring manager |
| Me-focused writing | Ignores what the employer needs | Frame your fit around their problems |
| Not tailoring the letter | Reads as mass-sent | Reference the exact role, team, or mission |
| Listing duties, not results | Blends in with the job description | Show measurable outcomes |
| Ignoring keywords | May stall in ATS filters | Mirror the job title and key terms in plain text |
| Weak closing | Ends on a flat note | Restate your fit and invite a conversation |
| Poor formatting | Hard to read and can break parsers | Use short paragraphs and a clean layout |
How do you fix a weak cover letter opening?
Fix a weak opening by naming the role, the hiring manager where you can find one, and a single specific reason you fit, all within the first two sentences. Skip “I am writing to apply for” and “To Whom It May Concern.” Lead instead with a concrete hook: a relevant result, a shared mission, or the exact problem the team is hiring to solve.
Mistake 1 — Opening with a template line
Lines like “I am writing to apply for the position advertised on your website” tell the reader nothing and burn your most valuable sentence. The first line is where a recruiter decides whether to keep reading. Use it to show you understand the job and have something specific to offer.
Mistake 5 — The wrong company name or a leftover placeholder
Nothing kills a first impression faster than the previous employer’s name or a stray “[Company Name]” that survived your copy-paste. It tells the reader the letter was never really written for them. Always reread the header, greeting, and closing before you attach the file.
Mistake 6 — Using “To Whom It May Concern”
This greeting reads as dated and impersonal, and it hints that you did not look for a name. Check the job post, the company’s team page, and LinkedIn. If no name is available, “Dear Hiring Team” or the department name is warmer than a blanket salutation.
Weak (example): “To Whom It May Concern, I am writing to apply for the position advertised on your website.”
Better (example): “Dear Hiring Manager, I have spent three years cutting churn for early-stage SaaS teams, so your posting for a Retention Lead caught my eye right away.”
For a full framework on structure and tone, see our guide on how to write a cover letter.
How long should a cover letter be, and should it repeat your resume?
A cover letter should fit on one page, roughly 250 to 400 words across three or four short paragraphs. It should never repeat your resume line by line. Instead, pick two or three achievements and tell the story behind them: the problem you faced, what you did, and the measurable result. The resume lists; the letter explains.
Mistake 3 — Running too long
A letter that spills onto a second page rarely gets read to the end. Length is not depth. If you cannot cut it down, you probably have not decided which few points matter most. Choose the strongest evidence for this specific role and let the rest live on your resume.
Mistake 2 — Rephrasing your resume
Restating your bullet points in paragraph form adds no new information and feels like padding. The cover letter earns its place by adding context a bulleted list cannot: motivation, judgment, and the reasoning behind a result.
Mistake 9 — Listing duties instead of results
“Responsible for managing the team’s reporting” describes a job description, not you. Swap responsibilities for outcomes: what changed because you were there? Numbers, before-and-after comparisons, and specific problems solved make you memorable.
Tip: If you need a shorter format, a tight three-paragraph note often outperforms a full page. Study the patterns in these short cover letter examples, then browse full-length cover letter examples to see how the same story scales up.
How do you make a cover letter about the employer instead of yourself?
Shift the focus by anchoring your sentences to the employer’s needs rather than your wants. Before writing, list the top problems in the job description, then match each to proof that you can solve it. Replace “I want a role where I can grow” with a line that names their challenge and shows you have already handled something like it.
Mistake 7 — The me-first letter
A letter crowded with “I want,” “I hope,” and “I am looking for” reads as a wish list. Employers hire to solve their own problems, not to fund your goals. Keep the value flowing toward them, and the fit becomes obvious.
Mistake 8 — Sending the same letter everywhere
An untailored letter is easy to spot and easy to reject. You do not have to rewrite from scratch for every job, but you should adjust the hook, the keywords, and at least one example to match each posting. A few targeted sentences beat a generic template every time.
Me-focused (example): “I am looking for a marketing role where I can develop my skills and take on more responsibility.”
Employer-focused (example): “Your posting mentions a stalled content pipeline. In my last role I rebuilt one from scratch and doubled monthly output within a quarter.”
How do small errors like typos and formatting cost you the job?
Small errors signal carelessness at the exact moment you are claiming to be detail-oriented. A typo, a mismatched company name, or a dense block of text gives a busy reader an easy reason to move on. Read the letter aloud, run a spell-check, and confirm every name and role before you attach the file.
Mistake 4 — Typos and grammar slips
Spell-check catches the obvious ones but misses the sneaky ones: “manager” for “manger,” “form” for “from,” or a their/there mix-up. Reading aloud forces you to slow down and hear what is actually on the page. When it matters, ask someone else to read it too.
Mistake 12 — Poor formatting
A single unbroken paragraph is exhausting to read, and heavy design elements can confuse the systems that parse your application. Keep paragraphs short, use plain text, and leave enough white space that a reader can skim the shape of your argument in seconds.
Quick proofreading checklist:
- Confirm the company name and role in the greeting, body, and closing.
- Read every sentence aloud once, slowly.
- Check that each claim maps to something on the job posting.
- Save and send as a PDF unless the employer asks for another format.
How do you get a cover letter past ATS and end it strong?
To pass an applicant tracking system, mirror the exact keywords and job title from the posting in plain text, and avoid headers, tables, and images that parsers choke on. Then close with a clear next step: restate your fit in one line and invite the conversation. A flat “thanks for your time” wastes your final impression.
Mistake 10 — Ignoring the keywords a scanner looks for
If the posting says “project coordination” and your letter only says “keeping things organized,” a keyword filter may never register the match. Use the employer’s own language for skills and the job title, but keep it natural. You can confirm your documents read cleanly with a free ATS checker before you apply.
Mistake 11 — A limp closing
The last line is your call to action, so do not waste it on filler. Summarize why you fit in a single sentence, express genuine interest in talking further, and make it easy to reach you. Confidence here, without arrogance, leaves the reader ready to schedule a call.
If you would rather start from a proven structure and adapt it, our cover letter generator builds a tailored draft you can refine, so you can focus on the specifics that make your application stand out. Avoid these 12 mistakes, keep the letter short and employer-focused, and proofread before you send, and your cover letter will do exactly what it should: earn you the interview.
What should you check before you hit send?
Most of these 12 mistakes slip through in the last two minutes, when you are tired and eager to apply. Run this quick pre-send checklist on every letter to catch the errors that cost interviews. Copy it into your notes and tick each line before you attach the file.
- Right names, everywhere. The company, role, and hiring manager match this job, with no leftover [Company Name] placeholder in the header, greeting, or closing.
- Named greeting. You addressed a person or team, not “To Whom It May Concern.”
- Employer-first opening. Your first two sentences name the role and one specific reason you fit, not “I am writing to apply.”
- Results, not duties. At least two lines show a measurable outcome instead of restating your resume.
- Keywords present. The exact job title and two or three key terms from the posting appear in plain text so a scanner can read them.
- One page, tight. The letter stays between 250 and 400 words with short paragraphs.
- Clean proof. You read it aloud and ran a spell-check, so no typos or grammar slips remain.
- Strong close. The final line restates your fit and invites a conversation.
Duties (weak): “I was responsible for managing the company’s social media accounts and posting content.”
Results (better): “I grew our Instagram following from 4,000 to 22,000 in ten months, which lifted store visits from social by 30 percent.”
Want the errors caught for you? Paste your resume into our free ATS checker to confirm it parses cleanly, then apply the same care to the letter that carries it.
Frequently asked questions
01What is the biggest cover letter mistake?
The costliest mistake is not tailoring the letter to the specific job. A generic letter that could be sent to any company signals a mass application and gives a hiring manager an easy reason to pass. Reference the exact role, name a real problem the team faces, and show one concrete way you can solve it.
02Is "To Whom It May Concern" still acceptable?
It is best avoided. “To Whom It May Concern” reads as dated and impersonal, and it suggests you did not research who is hiring. Look for the hiring manager on the job post, the company site, or LinkedIn, and address them by name. If you truly cannot find a name, use “Dear Hiring Team” or the department, not a blanket salutation.
03How long should a cover letter be in 2026?
Keep it to one page, roughly 250 to 400 words across three or four short paragraphs. Recruiters skim, so a tight letter that makes its case quickly beats a dense one. If you struggle to trim, focus on two or three achievements that map directly to the job description and cut everything else.
04Should my cover letter repeat my resume?
No. A cover letter should explain, not duplicate. Your resume lists what you did; the letter tells the story behind a few highlights, including the problem, your action, and the measurable result. Repeating bullet points word for word wastes the reader’s attention and adds nothing new to your application.
05Do cover letters get scanned by ATS?
Often, yes. Many applicant tracking systems parse the cover letter along with the resume, so avoid images, tables, and unusual formatting that parsers can misread. Mirror the job title and a few key terms from the posting in plain text. You can run your documents through a free ATS checker before applying to confirm they read cleanly.
06What should you not put in a cover letter?
Leave out anything that does not help you win the interview: a word-for-word recap of your resume, personal details like age or marital status, salary demands, criticism of past employers, and generic filler such as “I am a hard worker.” Cut the dated “To Whom It May Concern,” any leftover [Company Name] placeholder, and typos. Keep every line focused on the employer’s needs and the value you bring.
Cover letter dos and don’ts
Knowing what not to put in a cover letter is half the work. The table below distills the 12 mistakes above into a quick do-and-don’t reference you can scan before you send. Stick to the left column, avoid the right, and most rejections at this stage take care of themselves.
| Do | Don’t |
|---|---|
| Open with a specific hook tied to the role | Start with “I am writing to apply for the position advertised” |
| Address a named person or team | Default to “To Whom It May Concern” |
| Tell the story behind two or three wins | Repeat your resume line by line |
| Show measurable results | List duties and responsibilities |
| Mirror the posting’s keywords in plain text | Bury skills in images or tables an ATS can’t read |
| Keep it to one page, 250 to 400 words | Let it spill onto a second page |
| Proofread and confirm every name | Leave a wrong company name or [Company Name] placeholder |
| Close with a clear next step | End on a flat “thanks for your time” |
What does a bad cover letter look like?
A bad cover letter is generic, self-focused, and padded with lines lifted straight from a resume. It opens with a template greeting, names the wrong company or leaves a placeholder behind, lists duties instead of results, and closes on filler. Below is a weak example, the specific mistakes it makes, and a rewrite that fixes each one.
Weak example: “To Whom It May Concern, I am writing to apply for the marketing position advertised on your website. I am a hard-working team player looking for a role where I can grow and develop my skills. As you can see from my resume, I was responsible for managing social media accounts and posting content. I believe I would be a great fit at [Company Name] and hope to bring my skills to your team. Thank you for your time and consideration.”
What is wrong with it
- Cold, dated greeting. “To Whom It May Concern” shows no one was researched.
- Template opening. “I am writing to apply for…” wastes the most valuable sentence.
- All about the applicant. It talks about growing skills, not solving the employer’s problem.
- Duties, not results. “Responsible for managing social media” has no measurable outcome.
- Leftover placeholder and flat close. “[Company Name]” proves it was never tailored, and “thank you for your time” ends with no next step.
Fixed version: “Dear Ms. Rivera, your posting for a Content Marketer mentions a stalled blog pipeline. In my last role I rebuilt one from scratch and grew monthly output from 4 to 12 posts, which lifted organic signups 30 percent in two quarters. I would love to bring that same system to Northwind’s content team. Could we find fifteen minutes this week to talk?”