The resume format question — reverse chronological, functional, combination, or something else — matters enormously for ATS performance. The "best" format depends on your situation, but for most jobseekers in 2026, one format wins by a wide margin.
The three main resume formats
Reverse-chronological
Lists your most recent experience first and works backward. This is the standard format and the one ATS systems are designed to parse. If you have consistent, relevant work history, this is almost always the right choice.
Functional (skills-based)
Groups experience by skill category rather than by timeline. Popular advice for career changers and people with employment gaps — but widely disliked by ATS systems because the lack of clear date-ordered experience entries confuses parsers. Recruiter surveys also show functional resumes raise red flags.
Combination
Leads with a strong skills section, followed by a shorter reverse- chronological experience section. Works well when you're changing careers or have high-value skills from non-traditional experience. ATS compatibility is better than functional formats.
The ATS-optimized format in 2026
After testing across major ATS platforms including Greenhouse, Lever, Workday, and iCIMS, the consistently best-performing format is:
- Single column, 1-inch margins, 10.5–12pt font
- Name and contact info at the top in plain text (not in a header field)
- 2–3 sentence professional summary with target role named
- Skills section with 8–16 keywords organized by category
- Experience in reverse-chronological order
- 2–5 achievement bullets per role with quantification
- Education with degree, institution, and graduation year
- Certifications if relevant
Section heading names that ATS recognizes
Some heading names are recognized universally. Others cause ATS parsers to miscategorize or skip the section. Stick to these:
- Work history:"Experience" or "Work Experience" or "Professional Experience"
- Skills:"Skills" or "Technical Skills" or "Core Competencies"
- School:"Education"
- Certs:"Certifications" or "Licenses"
Avoid "What I Know", "My Story", or anything that sounds like a bio instead of a section label.
Common formatting mistakes that kill ATS scores
- Using icons or logos (stripped or misread during parsing)
- Progress bars or visual skill ratings (meaningless to ATS)
- Fancy fonts like Lobster or Playfair in body text
- Color-coded sections (ATS is usually plain text)
- Hyperlinks embedded in text (use plain URLs)