Why Resume Columns Break ATS Parsing
Multi-column resumes look organized but often confuse ATS parsers. Here's what happens under the hood — and what to do instead.
Published 8 May 2026 · 4 min read
How parsers read your resume
Most resume parsers extract text in document order — roughly top-to-bottom, left-to-right. They then try to detect sections by matching headings to known patterns such as Experience, Education, Skills and Certifications.
What a two-column layout does
In a typical two-column layout, the left column might contain Skills and Languages while the right column contains Experience. A parser reading top-to-bottom may interleave content from both columns.
This can turn a clean-looking resume into a confusing mix of job descriptions, skills, dates and section headings.
A small example
Imagine the left column says Skills: Python, SQL and the right column says Senior Engineer at Acme — built a data platform.
After parsing, the ATS might store these elements as one mixed text block. That is not useful when a recruiter filters by job title, skill or experience.
What to do instead
- Use a single column for ATS submissions.
- Put one section under another with clear headings.
- Keep skills, experience and education in separate sections.
- Use a designed two-column version only for human-facing channels.
Related guides
- Best Practices
Do ATS Read Tables in Resumes?
Tables can make a resume look organized, but they often create reading-order problems for ATS parsers.
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Do ATS Read Icons and Graphics in Resumes?
Icons and graphics can make a resume look modern, but ATS systems usually read plain text more reliably.
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One-Column Resume Format for ATS: Why It Is Safer
A one-column resume format is usually safer for ATS because it keeps the reading order simple and predictable.
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Frequently asked questions
- Are resume columns always bad for ATS?
- Not always, but they increase parsing risk. A single-column layout is safer when you do not know which ATS the employer uses.
- Can I keep a two-column version?
- Yes, but use it mainly for direct human review, networking or interviews. For job portals, a one-column version is usually safer.
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Guide written with AI assistance and reviewed by our editorial team