Key Stat
Over 75% of resumes are rejected by ATS before a human ever reads them. Most rejections are caused by avoidable formatting and keyword mistakes — not lack of qualifications.
Build an ATS-ready resume freeApplicant Tracking Systems (ATS) are software tools used by employers to filter, rank, and sort resumes before a recruiter sees them. If your resume doesn't pass the ATS filter, it's deleted — regardless of how qualified you are. Here's exactly how to avoid that.
What Is an ATS and How Does It Work?
An ATS scans your resume for specific keywords, section headings, and formatting it recognizes. It assigns your resume a score based on how closely it matches the job description. Resumes below a certain score are automatically filtered out.
Large companies including Amazon, Google, Deloitte, and most Fortune 500 firms use ATS. Many smaller companies use tools like Greenhouse, Lever, or Workday — all of which have ATS built in.
The 6 Most Common ATS Mistakes
Using tables or text boxes
ATS parsers skip content inside tables and boxes. Key information becomes invisible.
Creative section headings
"My Journey" and "What I've Done" confuse ATS. Use "Work Experience," "Skills," "Education."
Putting contact info in the header/footer
Many ATS systems ignore header and footer regions entirely.
Using images, graphics, or charts
ATS cannot read visual content. Skill bars and icon-heavy layouts reduce your score.
Wrong file format
Submit PDF unless the employer explicitly requests .docx. Poorly formatted Word files often break parsing.
Not tailoring to the job description
A generic resume matches few keywords. ATS ranks resumes by keyword density match.
How to Optimize Keywords for ATS
ATS keyword matching is literal. Here's the process:
- Copy the job description into a text document and highlight every skill, tool, and qualification mentioned.
- Find which ones appear on your resume— gaps are where you're losing ATS score.
- Add missing keywords naturally — in your summary, experience bullets, or skills section.
- Use exact phrases— if the job says "project management", don't write "managing projects." ATS often won't match variants.
Pro Tip
Don't keyword-stuff. ATS may flag suspiciously dense repetition, and human reviewers will notice immediately. Aim for natural integration — if a phrase fits into a bullet point as a genuine description of your work, add it. If not, leave it out.
ATS-Safe Formatting Rules
- Use standard section headings: Summary, Work Experience, Education, Skills
- Use a single-column layout — multi-column layouts confuse many ATS parsers
- Use standard fonts: Arial, Calibri, Georgia, or Times New Roman
- Font size: 10–12pt for body, 14–16pt for your name
- No logos, profile photos, or decorative lines
- Bullet points are fine — but use simple round bullets, not custom symbols
- Margins: 0.5–1 inch on all sides
How to Test Your Resume Against ATS
Before submitting, run your resume through an ATS checker. Our free ATS Score Checker analyzes your resume against a job description and highlights keyword gaps, formatting issues, and your overall match score — in seconds.
ATS Resume FAQs
Do all companies use ATS?↓
Most companies with more than 50 employees use some form of ATS. Small businesses and startups applying via LinkedIn or their own portal may also use ATS-based filtering.
Does a PDF pass ATS?↓
Yes — modern ATS systems read PDF reliably. PDF is generally preferred as it preserves formatting. Only switch to .docx if the employer explicitly requests it.
Can ATS read two-column resumes?↓
Most older ATS systems cannot correctly parse two-column layouts. They read left-to-right across columns, mixing content from different sections. A single-column layout is always safer.
Should I include keywords I don't fully qualify for?↓
Only if you have any exposure to the skill. Never fabricate qualifications. ATS gets you the interview — dishonesty in the interview ends it.
Check your score
See how your resume scores against real ATS systems.
Free ATS checker — paste the job description and get an instant score with keyword gap analysis.
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