10 ATS Resume Mistakes That Are Killing Your Job Applications

You're qualified for the job. You have the right experience. Your references are solid. So why aren't you getting interviews?

The answer is likely ATS. Over 75% of large companies use Applicant Tracking Systems to filter resumes before humans see them, and most job seekers are making critical mistakes that get their resumes automatically rejected.

In this guide, we'll cover the 10 most common ATS resume mistakes and exactly how to fix each one. After making corrections, use our free ATS resume scanner to verify your resume passes screening.

Mistake #1: Missing Keywords from the Job Description

The #1 reason resumes fail ATS screening. ATS software compares your resume against the job description and scores it based on keyword matches. If you're missing key terms, your score drops.

The fix: Read the job description carefully. Identify the top 10-15 keywords (skills, tools, qualifications) and ensure they appear naturally in your resume. Include both acronyms and full terms.

For a complete list of industry-specific keywords, see our ATS keywords guide.

Mistake #2: Using a Multi-Column Layout

Two-column resumes look great to humans but confuse ATS parsers. The system reads left-to-right, top-to-bottom, so content from two columns gets jumbled together.

The fix: Use a single-column layout throughout. Put all information in a linear, top-to-bottom flow. Check our ATS-friendly format guide for details.

Mistake #3: Putting Critical Info in Headers/Footers

Many ATS systems cannot read content placed in document headers and footers. If your name, phone, or email is in the header, the ATS may not capture it.

The fix: Place all contact information in the main body of your resume, right at the top.

Mistake #4: Including Photos, Logos, or Graphics

ATS systems cannot read text embedded in images. Profile photos, company logos, skill bars, and decorative graphics mean nothing to the parser.

The fix: Remove all images and graphics from your resume. Convey everything through text.

Mistake #5: Using Creative Section Headers

"My Professional Journey," "Career Highlights," "Technical Toolkit" — these creative headers might sound impressive, but ATS is trained to recognize standard headers like "Work Experience," "Education," and "Skills."

The fix: Use conventional section headers that every ATS can recognize. Save creativity for your achievements, not your section names.

Mistake #6: Job Description Not Matching Your Resume

Submitting the same generic resume for every job is the fastest way to fail ATS screening. Each job has different keywords and requirements.

The fix: Customize your resume for each application. Adjust your professional summary, skills section, and experience bullet points to align with the specific job description. Use our free ATS resume scanner to compare your resume against each job description.

Mistake #7: Complicated Date Formatting

Inconsistent date formats confuse ATS parsers. Mixing "Jan 2020 - March 2023" with "2021-2022" and "01/20 - present" creates parsing errors.

The fix: Choose one date format and use it consistently throughout. Recommended: "MM/YYYY — MM/YYYY" or "Month YYYY — Month YYYY." Use "Present" for current positions.

Mistake #8: Sending the Wrong File Format

Different ATS systems handle file formats differently. While most modern ATS can parse PDFs, some older systems still struggle. And some employers specifically require a particular format.

The fix: Unless specified otherwise, submit your resume as a DOCX (Word) file. This is the most universally compatible format. If PDF is required, ensure it's text-based, not scanned. See our PDF vs DOCX guide for the full comparison.

Mistake #9: Not Including a Skills Section

A dedicated skills section makes it easy for ATS to identify and catalog your competencies. Without one, the system has to guess what your skills are from your experience descriptions.

The fix: Include a dedicated Skills section with relevant technical and professional skills. Group them by category and use the exact terminology from the job description.

Mistake #10: Overloading with Buzzwords Without Substance

A modern ATS can detect keyword stuffing. Simply listing "team player, results-driven, strategic thinker, detail-oriented" without context doesn't help — and may hurt — your score.

The fix: Use keywords in context within your experience descriptions. Instead of just listing "Python" in skills, write: "Developed data processing pipelines using Python, reducing processing time by 40%."

Bonus Mistake: Not Testing with an ATS Scanner

The biggest mistake of all is assuming your resume passes ATS screening without checking. Many job seekers are shocked to discover their well-crafted resumes are failing automated systems.

The fix: Always test your resume before submitting applications. Our free ATS resume scanner analyzes your resume the same way employer ATS systems do, giving you a score and specific recommendations.

ATS Resume Mistakes Quick Reference

Start Fixing Your Resume

Now that you know the most common ATS resume mistakes, it's time to fix them. Go through your resume with this checklist, make the corrections, and then run it through our free ATS resume scanner to verify your score improved.

Remember: each job application may need different keywords. Always customize and test before submitting.