| Rule | Why it matters | Quick fix |
|---|---|---|
| Dates | Vague or inconsistent dates confuse parsers | Use MM/YYYY or "Month Year" |
| Columns | Breaks top-to-bottom reading order | Single-column layout |
| Headers | Unrecognized headers = unmapped content | Use standard section names |
| Icons/graphics | Can't be parsed into text at all | Plain text and bullets only |
| File type | Scanned PDFs have no selectable text | Text-based PDF or DOCX |
| Fonts | Custom fonts can render as gibberish | Stick to system fonts |
01Why formatting breaks resumes
An ATS doesn't "read" your resume the way a person does. It extracts raw text, tries to segment that text into fields (Experience, Skills, Education), then ranks the result against a job description. Anything that disrupts extraction or segmentation — a table, an icon, a text box — can silently drop information before a human ever sees it.
For the full mechanics of how parsing and scoring work, see our complete ATS guide. This article focuses on one thing: the six formatting choices most likely to cause silent parsing failures, and exactly how to fix each one.
02Rule 1: Date format
Parsers look for a recognizable date pattern to calculate tenure and order your work history. Ambiguous formats often get skipped or misread entirely.
Avoid
- "2022 – 2023" (year only)
- "'23 – Present" (apostrophe shorthand)
- "Summer 2023" (season)
- "Ongoing" / "Current" alone
Use
- "03/2023 – Present"
- "March 2023 – Present"
- "Mar 2023 – Present"
03Rule 2: Columns and tables
Most parsers read top-to-bottom, left-to-right. A two-column layout can interleave the wrong lines together, and a table can drop cell contents entirely depending on how the parser walks the document.
Avoid
- Floating text boxes for contact info
- Sidebars holding skills or dates
- Nested tables of any kind
Safer
- Single-column layout (safest)
- Simple two-column only if no critical info sits in the side column
The parse test
Copy your entire resume and paste it into a plain text editor. If the order still makes sense and nothing's missing, an ATS will likely parse it correctly.
04Rule 3: Section headers
Parsers map your content to fields by recognizing standard section names. A creative header might read well to a person and mean nothing to a parser.
Avoid
- "My Journey" (reads as biography)
- "What I Bring" (unrecognized)
- "The Highlights" (unrecognized)
Use
- Summary / Professional Summary
- Experience / Work Experience
- Education
- Skills
05Rule 4: Icons and graphics
Icons for a phone or email, skill-rating bars, and decorative dividers are images or vector shapes — not text. A parser either ignores them or, worse, tries to extract them and produces garbage characters.
Avoid
- Icons next to contact details
- Skill-level progress bars
- Decorative graphic dividers
Use
- Plain text labels ("Phone:", "Email:")
- Standard bullet characters (•, –)
06Rule 5: File type
PDF is safe for most modern ATS platforms — as long as it's text-based, not a scanned image. Use DOCX only when a job posting explicitly asks for it.
The one thing that always fails
A scanned or flattened image of your resume, saved as a PDF, has zero selectable text. If you can't highlight a word in it, no ATS can read it either.
07Rule 6: Fonts and typography
Body text at 10-12pt, headers at 14-18pt, and fonts that render consistently across systems:
Avoid
- Downloaded/custom fonts
- Script or handwriting fonts
- Typewriter-style fonts
Use
- Arial, Calibri, Helvetica
- Roboto, Georgia, Open Sans
- Times New Roman, Verdana
08Pre-submit checklist
- Dates use MM/YYYY or "Month Year" format, consistently
- Layout is single-column, or two-column with no critical info in the side column
- Section headers use standard names: Summary, Experience, Education, Skills
- No icons, skill bars, or decorative graphics anywhere
- File is a text-based PDF or DOCX — not a scanned image
- Fonts are standard system fonts, 10-12pt body / 14-18pt headers
09Frequently asked questions
What is the best date format for an ATS resume?
MM/YYYY or "Month Year" (e.g. 03/2023 or March 2023). Avoid year-only ranges, apostrophe shorthand, seasons, or vague terms like "Ongoing."
Can I use tables in a resume for an ATS?
Avoid them. Tables and nested layouts break the reading order most parsers rely on, which can disconnect job titles from descriptions or scramble dates.
Is a two-column layout safe for ATS?
It's inconsistent across platforms. Single-column is the safest choice. If you use two columns, don't put critical info like contact details or job titles in the side column.
What fonts are ATS-safe in 2026?
Standard system fonts: Arial, Calibri, Helvetica, Roboto, Georgia, Times New Roman, Verdana, Open Sans. Avoid downloaded custom, script, or typewriter-style fonts.
Should I submit as PDF or Word?
PDF, in most cases — as long as it's text-based, not a scanned image. Use DOCX only when a posting explicitly requests it.
Check your resume against these rules.
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