The 10 ATS-killing mistakes that auto-reject your CV before a human sees it. Fix each one with a 1-line change and pass the keyword + format scan.
Most CVs are rejected by software, not by humans. The Applicant Tracking System (ATS) parses your file before any recruiter sees it, and a single formatting error can drop a strong candidate to zero. The good news: every common ATS mistake has a one-line fix.
This guide lists the 10 most frequent ATS killers seen in 2026 hiring pipelines, with the exact change to make. Test your own CV against our free ATS scanner — paste the job description and see what passes, what fails, and which keywords are missing.
Why ATS-killing mistakes are different from "design" mistakes
Design mistakes annoy a human but rarely block them. ATS mistakes are binary: the parser either reads your section or skips it. Skipped sections do not exist for the recruiter. That is why a beautiful CV with a header in a text box can score 0 on contact details, even when the email is right there for the eye to see.
The 10 mistakes ranked by impact
- Header in a text box / image — the parser misses your name, email, phone. Fix: put contact details in plain text at the top of the page.
- Photo in countries that ban it — France, UK, USA flag CVs with photos as compliance risk. Fix: hide the photo for these markets (our CV Builder toggles per country).
- Tables for layout — multi-column tables get parsed in zigzag order. Fix: single-column flow, or a true two-column template that the ATS understands.
- Custom fonts not embedded — uncommon fonts render as squares or get substituted, breaking ligatures and spacing. Fix: stick to system fonts (Arial, Calibri, Georgia, Inter).
- Date formats inconsistent — "Mar 2024", "03/2024", "March 24" mixed in the same CV confuses date extraction. Fix: pick one (we recommend MM/YYYY) and stay consistent.
- Skills in a graphic — bar charts and dots are stripped. The text "Python ●●●●○" becomes "Python". Fix: write the skill name + one short qualifier ("Python — 5 years").
- Experience without bullets — paragraphs of prose are scanned for keywords but rarely parsed into achievements. Fix: 3–5 short bullets per role, each starting with an action verb.
- Missing the job title in the headline — the ATS often weights the top of the document. Fix: put the target role under your name (e.g. "Senior Backend Engineer").
- Headers named in your language only — if you submit to a multinational, "Experiência Profissional" may not match the ATS's keyword list. Fix: use the standard headers in the local language of the role.
- Special characters in file name — accents, spaces, or symbols break some parsers. Fix: name your file "FirstName-LastName-CV.pdf".
What to optimise first
- Run a keyword match against the job description. Aim for 60–80% coverage of the technical terms.
- Reduce your CV to one or two pages, with the strongest experience on top.
- Check that your name, email, and phone appear in the first 200 characters of the document.
- Export as PDF (preferred) or .docx — never as a screenshot or scan.
Before and after
Before: Two-column CV with photo on top-left, contact in a text box, skills as bar charts, experience as paragraphs. ATS score: 38/100.
After: Single-column or ATS-optimised two-column with photo hidden for FR/UK, contact in plain text under the name, skills as a bullet list with qualifiers, experience as 3–4 short bullets per role. ATS score: 87/100.
Mistakes that look harmless but cost interviews
- Using "I" or "We" — most ATS prefer implicit subject ("Led a team of 6")
- Hiding dates ("from 2018") — the parser may classify the role as "current" and stale
- Repeating the same verb ("led, led, led") — the keyword density loses signal
- Putting the most relevant skills below an unrelated section
Quality checklist before submission
- Plain-text contact in the first paragraph
- Standard section headers in the role's language
- One column OR a verified ATS-friendly two-column template
- System font, consistent date format, no bar charts for skills
- File name with no special characters
FAQ
Does PDF or DOCX score better with ATS?
In 2026, most ATS handle both equally well — but PDF is safer for layout consistency. The exception is older versions of Workday and SuccessFactors where DOCX still parses cleaner. If you do not know, send PDF.
Should I hide skills in white text to "trick" the ATS?
No. Modern ATS (Greenhouse, Lever, Workday) flag this as keyword stuffing and most recruiters can see it on copy-paste. The risk-reward is terrible.
How do I test my CV against an ATS without applying?
Use our free ATS keyword scanner — paste the JD and your CV, get coverage % + missing keywords + format flags. No signup, no credit card.
Final takeaway
The ATS is not your enemy — it is a checklist with a deadline. Fix the 10 mistakes above and you go from "auto-reject" to "human reads it" overnight. Then the recruiter decides on content, not on formatting.