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10 Common Resume Mistakes and How to Avoid Them

Small resume mistakes can cost interviews. Here are the issues recruiters notice first and how to fix them before sending your PDF.

February 4, 202612 min read
FormattingTyposLengthATSContacts
10 Common Resume Mistakes and How to Avoid Them
A strong resume is clear, structured, and honest.

Most resumes are not rejected because the candidate is weak. They are rejected because the page makes a strong candidate look careless, vague or hard to read — and every one of those impressions is created by a fixable defect rather than by a missing qualification.

Below are the ten mistakes recruiters see most often, each with the correction that removes it, followed by a proofreading routine, a final checklist and the country differences that decide which of these rules apply to you.

Key takeaways

  • Most resumes are not rejected for lack of experience but for avoidable defects: typos, vague duties, a wall of text, an unreadable file.
  • A duty list says what the job required. An achievement says what you changed. Only the second one competes.
  • Anything you cannot defend for five minutes in an interview is a liability, not a selling point.
  • Read the file once on a phone before sending: half the formatting problems only appear there.
  • The fastest improvement available to most candidates is deleting, not adding.
Contents
10 mistakes and how to avoid them
Proofreading and spell‑check are non‑negotiable.

10 mistakes and how to avoid them

10
1

Typos and grammar errors

A misspelled job title or a broken sentence signals carelessness before a single achievement is read, and it is the defect recruiters mention most often when asked why they stopped reading.

How to fix: Proofread in several passes, read the text aloud once, and have another person check it — spellcheck does not catch a correctly spelled wrong word.
2

Duties instead of achievements

“Responsible for social media” describes the job description, not you. Every other applicant for the same role can write the identical line, so it carries no information.

How to fix: Rewrite each bullet as an action with a result: what you did, and what changed because of it — numbers where they exist, a concrete outcome where they do not.
3

One resume sent everywhere

A generic file matches no posting particularly well. Recruiters notice immediately when the summary talks about a different role from the one advertised.

How to fix: Keep one base version and adjust the summary, the skills list and the order of achievements for each application — ten minutes per posting is enough.
4

No numbers anywhere

Without figures the reader has no way to judge scale. “Improved the process” could mean an hour saved a year or a team of thirty restructured.

How to fix: Add scale to at least three bullets: budget, headcount, volume, percentage, timeframe. Approximate but honest figures are better than none.
5

Filler adjectives about yourself

“Responsible, stress-resistant, a fast learner” appears on almost every resume, which is exactly why it convinces nobody. Self-description is not evidence.

How to fix: Delete the adjectives and let the achievements carry them. A line about shipping a release under a deadline proves stress resistance better than the phrase does.
6

Unexplained gaps

A silent two-year hole invites the worst available assumption. The gap itself is rarely the problem; the absence of any explanation always is.

How to fix: Name the reason in a single line — study, caregiving, health, relocation, a venture that did not work — and move on without elaborating.
7

A layout the parser cannot read

Tables, two-column designs, text inside images and decorative fonts are read incorrectly by applicant tracking systems, so the recruiter sees a scrambled or half-empty profile.

How to fix: Use a single-column layout with ordinary headings, export a PDF with a text layer, and confirm the text can be selected with a cursor before sending.
8

Too much personal data

Marital status, ID numbers, full home address and date of birth add nothing to a hiring decision and, in several countries, create a legal problem for the employer who receives them.

How to fix: Keep contacts to name, city, phone, email and one professional link. Add anything else only when the posting explicitly asks for it.
9

An unprofessional email address or file name

A nickname from school and a file called “resume_final_2.pdf” are small details, but they arrive before your experience does and set the tone for everything after.

How to fix: Use a first-name-surname address and name the file with your name and the role you are applying for.
10

Exaggeration that cannot survive a question

An inflated title or a tool you have only read about holds up until the first technical question, and losing credibility mid-interview costs far more than not being invited.

How to fix: List only what you could discuss for five minutes. Emphasise the strongest true things instead of inventing new ones.

How to proofread a resume so the errors actually surface

Nobody catches their own mistakes on the screen where they wrote them. Reading your own text, your eye repairs what is broken and skips what is missing. Five passes, each looking for one thing, find far more than one careful read-through.

  1. Leave it overnight

    Distance is what makes errors visible. A resume reread twenty minutes after writing still reads as intended rather than as written.

  2. Read it backwards

    Go bullet by bullet from the last line up. Without the flow of the argument, the eye stops repairing typos and starts seeing them.

  3. Read it aloud

    Sentences that are too long, clichés and missing words are audible even when they are invisible. If a line is hard to say, it is hard to read.

  4. Check numbers and dates separately

    Do one pass for figures alone: employment dates, percentages, team sizes. A wrong date is a credibility problem, not a typo.

  5. Have someone else read it once

    Ask them what role they think you are applying for. If their answer is not the role you want, the page has a bigger problem than spelling.

Then open the finished PDF on a phone. Text that overflows, a two-column layout that collapses and a font that fails to embed all show up there first.

Pre‑send checklist
Clear structure makes a resume easier to scan.
Conclusion
Verified facts and honest results always win.

Pre‑send checklist

  • No spelling or grammar errors, checked in at least two separate passes and once by someone else.
  • The experience and skills on the page answer the specific posting, not the profession in general.
  • At least three bullet points carry a number, a timeframe or a verifiable fact.
  • The layout is clean on both desktop and phone, and the PDF text can be selected with a cursor.

What counts as a mistake depends on the country

Several of the errors on this page are only errors in some markets. Before you send a resume abroad, check which of its details are expected and which will get it discarded.

United States and Canada

A photo, a date of birth or marital status can have your file set aside for anti-discrimination reasons before anyone reads it. The word “CV” is also confusing here: in the US it means an academic document, not a job application.

Germany and Austria

The opposite risk: a missing photo, no cover letter and unexplained gaps all read as carelessness. Attachments — school and employment certificates — are expected, and leaving them out is itself a mistake.

United Kingdom and Ireland

No photo, but two pages are fine and a bare list of duties without a personal statement is the common failing. Right-to-work status left unstated slows every application down.

Poland and much of the EU

A missing data-processing clause is a formal problem rather than a stylistic one: some employers cannot legally process an application without it, so the file is dropped without a reply.

None of this changes the substance of your experience. It changes which details belong on the page, which is exactly the part candidates forget to adjust.

Conclusion

Almost every item on this list is removed by deleting something rather than adding it: a filler adjective, a duty everyone in the role performs, a page nobody reaches. A resume gets stronger as it gets shorter, up to the point where the evidence starts disappearing.

Go through the ten mistakes once on your current file and fix only what is genuinely there. Half an hour of that work changes more replies than another month of sending the same document unchanged. Good luck with the search!

Frequently asked questions about resume mistakes

The questions readers send after going through the list.

Does one typo really cost an interview?

Rarely on its own, but it is never neutral. A typo in a two-page document reads as a slip; the same typo in your job title or your own email address reads as carelessness about the thing you are applying for. The cost is not the error but what the reader concludes from it.

Is it a mistake to use a designed template?

Only if the design fights the parser. Colour, sensible typography and a clean grid are fine. Two columns for the main content, text inside images, icons instead of section headings and unusual fonts are where templates start losing information between your file and the recruiter's screen.

Should I put my salary expectations on the resume?

Not unless the posting explicitly asks. A number placed before anyone knows your value either prices you out or anchors you low, and neither helps. The exception is markets and job boards where the field is mandatory, in which case give a range rather than a point.

How much can I round up or embellish?

Not at all on facts that can be checked: titles, dates, degrees, tools. You can choose which true things to emphasise, and you should. But an invented line survives only until the first technical question, and losing an offer at that stage is far more expensive than not getting the interview.

Is a long resume always a mistake?

Length is a symptom rather than the disease. Four pages usually means duties instead of achievements, every job described at equal depth, and nothing deleted in ten years. Fix that and the file shortens by itself; cutting pages without fixing it just loses information evenly.

How do I know whether my resume is actually bad?

Give it to someone outside your field for thirty seconds and ask what job you want and what you are best at. If they hesitate, the problem is the page, not the market. A resume that cannot answer those two questions in half a minute will not answer them in six seconds either.

Vitalii Zhelizniak

Vitalii Zhelizniak

Founder of ResumeQuill

Builds ResumeQuill — a free resume builder with ATS-friendly templates and PDF export without sign-up. Writes and reviews the resume guides published here.

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