10 Resume Mistakes That Get You Rejected (And How to Fix Them)

7 min read

You spent hours on your resume. You’ve applied to dozens of jobs. And still silence.

The problem might not be your experience. It might be your resume itself.

Recruiters see hundreds of applications for every open position. Small mistakes that seem harmless to you can signal carelessness, inexperience, or a bad fit and get your resume moved to the rejection pile in seconds.

Here are the 10 most common resume mistakes, why they hurt you, and exactly how to fix them.


Mistake 1: Using a Generic Resume for Every Application

Why it’s a problem: Employers can tell when a resume wasn’t written with their job in mind. A generic resume uses vague language, misses key terms from the job description, and fails to show why you’re the right fit for this role specifically.

It also hurts you with ATS (Applicant Tracking Systems). If your resume doesn’t contain the right keywords from the job posting, it may be automatically filtered out before a human ever sees it.

How to fix it: Keep a master resume with all your experience. For each application, spend 15–20 minutes tailoring your summary and top bullet points to match the language in the job description. You don’t need to rewrite everything just make sure the most important skills and accomplishments are front and center for that specific role.

Related: How to Write a Resume From Scratch


Mistake 2: Describing Duties Instead of Achievements

Why it’s a problem: Saying “responsible for managing social media” tells a recruiter what your job was. It doesn’t tell them whether you were good at it. Every candidate in the pile had responsibilities you need to show results.

Before:

Responsible for customer support and handling complaints

After:

Resolved an average of 85 support tickets per day while maintaining a 97% customer satisfaction score

How to fix it: Go through every bullet point and ask yourself: “So what?” If you can add a number, percentage, timeframe, or outcome do it. Even rough estimates are better than nothing (“reduced processing time by approximately 30%”).


Mistake 3: Burying the Most Important Information

Why it’s a problem: Recruiters scan resumes in a Z-pattern top left, across, then down. If your most impressive credential (a top company, a strong result, a relevant skill) is buried in the middle of your resume, it won’t register.

How to fix it: Put your strongest material first. Your most recent and most relevant job should be at the top of your experience section. Your resume summary should lead with your biggest selling point. If you have a notable credential a well-known employer, a relevant certification, a strong metric make sure it appears in the top third of the page.


Mistake 4: Using an Unprofessional Email Address

Why it’s a problem: Your email address is one of the first things a recruiter sees. An address like gamer_king_99@hotmail.com or cutie_pie@yahoo.com immediately undermines your credibility. It’s a small thing, but it signals a lack of professionalism.

How to fix it: Create a simple professional email address using your name ideally firstname.lastname@gmail.com. If that’s taken, try adding a middle initial or a number. Update your resume and LinkedIn profile to use it consistently.


Mistake 5: Poor Formatting and Visual Clutter

Why it’s a problem: A resume that’s hard to read is a resume that doesn’t get read. Tiny fonts, inconsistent spacing, overuse of bold or italics, misaligned columns, and walls of text all make a recruiter’s job harder and they’ll move on.

Tables and text boxes are also a problem: many ATS systems cannot parse them properly, which means your content may show up as garbled text or get skipped entirely.

How to fix it:

  • Use a clean, professional font (Calibri, Georgia, Arial) at 10–12pt
  • Keep consistent spacing and margin sizes throughout
  • Use bullet points, not paragraphs, for your experience
  • Avoid tables, text boxes, and columns in the main body
  • Leave enough white space so the page breathes

Mistake 6: Including Outdated or Irrelevant Experience

Why it’s a problem: A resume that lists every job you’ve ever had including the summer job you had 15 years ago adds length without adding value. It dilutes the relevance of your stronger experience and makes you look like you don’t know what matters.

How to fix it: Focus on the last 10–15 years of experience. Only include older roles if they’re directly relevant to what you’re applying for. Entry-level positions from more than a decade ago can almost always be removed.


Mistake 7: Typos and Grammatical Errors

Why it’s a problem: A single typo can cost you an interview. Many recruiters immediately discard resumes with spelling mistakes it signals carelessness and poor attention to detail, regardless of how qualified you are.

How to fix it:

  1. Run a spell check (but don’t rely on it entirely spell check won’t catch “manger” instead of “manager”)
  2. Read your resume out loud to catch awkward phrasing
  3. Have someone else read it a fresh pair of eyes catches what yours miss
  4. Paste the text into a tool like Grammarly for an additional pass

Mistake 8: Using a Functional Resume Format When You Shouldn’t

Why it’s a problem: Functional resumes which list skills upfront and downplay employment history are often used to hide gaps or a lack of experience. Recruiters know this, and many view the format with suspicion. Worse, ATS systems frequently struggle to parse functional resumes correctly.

How to fix it: Stick to the chronological format in almost all cases. If you have employment gaps, address them honestly either with a brief note in your summary or by including freelance work, courses, or volunteer experience from that period. See our guide on how to explain employment gaps in your resume.


Mistake 9: Not Including a Resume Summary

Why it’s a problem: Without a summary, a recruiter has to read your entire resume to understand who you are and why you’re applying. Most won’t bother. A summary acts as your elevator pitch it gives context to everything that follows.

How to fix it: Write 2–4 sentences at the top of your resume that cover your role, years of experience, key skills, and one concrete achievement. Make it specific to the job you’re applying for.

Example:

Financial analyst with 5 years of experience in investment banking and corporate finance. Skilled in financial modeling, valuation, and Excel automation. Reduced month-end reporting time by 40% at previous firm through process improvements.


Mistake 10: Sending Your Resume as a Word Document

Why it’s a problem: Word documents can look completely different on different computers depending on the software version, fonts, and operating system. Your carefully formatted resume may arrive with broken layouts, wrong fonts, or missing elements.

How to fix it: Always export and send your resume as a PDF unless the job posting specifically requests a Word document. PDFs preserve your formatting exactly as you intended, on any device.


FAQ

How many bullet points should each job have? Aim for 3–5 bullet points per role. Your most recent and most relevant position can have up to 6. Older or less relevant roles can have 2–3.

Should I list every skill I have? No. Keep your skills section focused on tools and competencies that are relevant to the job you’re applying for. A long, unfocused skills list looks scattered.

Is it okay to have a gap in my employment history? Yes employment gaps are common and not automatically disqualifying. The key is to address them proactively rather than trying to hide them. Include relevant activities (freelance work, courses, caregiving) from that period.

Should I list my GPA on my resume? Only if you’re a recent graduate and your GPA is 3.5 or above. Otherwise, leave it off.

How do I know if my resume is ATS-friendly? Use a simple, clean format with no tables, columns, headers/footers, or images. Stick to standard section headings like “Work Experience,” “Education,” and “Skills.” Include keywords from the job posting naturally throughout your bullet points.


Resume Mistakes Checklist

Before you submit, make sure you haven’t made any of these errors:

  • Resume is tailored to this specific job posting
  • Bullet points describe achievements, not just duties
  • Most important information appears in the top half of the page
  • Email address is professional (firstname.lastname format)
  • No tables, text boxes, or columns in the body
  • No jobs listed from more than 15 years ago (unless highly relevant)
  • Proofread no typos or grammatical errors
  • Using chronological format (not functional)
  • Professional summary included at the top
  • Saved and sent as PDF

Ready to write your resume from scratch? Start with our complete guide: How to Write a Resume From Scratch.

And when your resume is polished, learn how to write a cover letter that stands out.

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