Most job applications are screened by Applicant Tracking System (ATS) software before a human ever reads them. If your resume isn't formatted correctly or lacks the right keywords, it gets filtered out automatically—regardless of your actual qualifications.
This guide is a complete ATS checklist covering formatting, sections, keywords, and common mistakes. For advanced keyword-gap scoring, see our ATS Resume Optimization Guide.
What You'll Learn
- The 15 most important ATS formatting and content rules
- Which section names ATS software actually recognizes
- Where and how often to place keywords
- Before and after examples showing exactly what to fix
- A 60-second pre-submit checklist to catch the most common errors
Who This Guide Is For
- Job seekers unsure why their applications aren't getting responses
- Applicants using design-heavy or multi-column resume templates
- Anyone preparing to apply to larger companies or agencies that use ATS software
- Career switchers who need to present experience clearly for new role types
What Is ATS and Why Does It Matter?
An Applicant Tracking System is software companies use to manage job applications. When you apply online, ATS software:
- Parses your resume into structured data (name, company, job title, skills)
- Scores it against the job description keywords
- Ranks it against other applicants
- Filters out low-scoring resumes before any human review
The key fact: Most enterprise companies and many mid-size companies use ATS software. Research estimates 70–75% of resumes are rejected before a recruiter reads them—most due to formatting or keyword issues that are easy to fix.
The Complete ATS Resume Checklist (15 Items)
Formatting Rules
1. Use a single-column layout
Two-column layouts break most ATS parsers. The software reads left to right, top to bottom—columns get scrambled or merged incorrectly.
✅ Single column → parsed correctly ❌ Two columns → experience may appear in wrong order
2. Use standard readable fonts
Stick to fonts ATS software handles reliably:
- Arial
- Calibri
- Georgia
- Times New Roman
Avoid decorative or unusual fonts. Use 10–12 pt for body text, 14–16 pt for your name.
3. Use standard margins
0.5 to 1 inch on all sides. Narrower margins make text harder to parse.
4. Export correctly for the platform
- Use .docx if the application specifically asks for Word
- Use .pdf for most modern systems (most ATS software in 2026 handles PDF well)
- Never submit a JPG, PNG, or scanned image of your resume—ATS cannot read text from images
5. Avoid graphics, icons, tables, and text boxes
ATS software cannot read information inside:
- Text boxes
- Tables used for layout
- Headers and footers (some ATS strip these entirely)
- Graphic elements and icons
If your contact information is in the page header/footer, it may be missed entirely.
6. Use standard bullet characters
Plain round bullets (•) or simple dashes are safest. Some ATS software misreads decorative symbols (▪, ◆, ✓) or converts them to question marks.
Section Naming Rules
7. Use section headings ATS recognizes
ATS maps content to structured fields based on heading labels. Non-standard headings get misclassified or skipped.
| ✅ ATS-safe heading | ❌ Avoid |
|---|---|
| Summary or Professional Summary | About Me, My Story |
| Experience or Work Experience | Career Journey, What I've Done |
| Education | Academic Background |
| Skills | Core Competencies, Expertise |
| Certifications | Credentials |
| Projects | Portfolio (not always recognized) |
8. Put contact information at the top, in the body
Not in the header or footer—directly in the first section of the document body:
- Full name
- City and state (not full address unless required)
- Professional email
- Phone number
- LinkedIn URL (optional but recommended)
Keyword Rules
9. Match the job title in your summary
Use the exact job title from the posting (or a close variant) in your professional summary. This is one of the highest-weight fields in ATS scoring.
10. Distribute keywords across three sections
Don't cluster all keywords in a skills block—spread them:
- Summary: 3–5 role-level keywords (job title, core skill, scope)
- Skills section: Tools, technologies, and qualifications
- Experience bullets: Responsibilities, context, and outcomes with keywords embedded naturally
11. Use the exact terms from the job description
ATS does exact or near-exact matching. If the job says "project management" and you write "project coordination," those may score differently.
Compare:
- Job says: "stakeholder reporting"
- You write: "reported to leadership" → partial match
- You write: "delivered stakeholder reporting dashboards" → full match
12. Include 10–15 relevant keywords total
A rough target: 10–15 highly relevant unique terms. More than that can read as keyword stuffing; fewer than 8 will drag your score.
13. Don't stuff keywords in white text or hidden blocks
Modern ATS systems detect hidden keyword stuffing and may penalize the resume. Only include keywords where they appear naturally in your content.
Content Rules
14. Use standard date formats
ATS software parses dates to calculate tenure. Use:
- Jan 2022 – Mar 2024 (safest)
- 2022 – 2024 (acceptable for year-only)
Avoid: "Two years at..." or "Current" without a year.
15. Quantify your experience in bullets
Bullets with numbers score higher and read better to recruiters:
- ❌ "Managed social media accounts"
- ✅ "Managed 4 brand social channels, growing combined following by 38% in 12 months"
Before and After: 3 Role Examples
Example 1: Product Manager
Before:
Created roadmaps. Led cross-functional meetings. Improved team efficiency.
After:
Built and maintained quarterly product roadmaps for a 12-person engineering team, aligning 3 stakeholder groups. Led biweekly cross-functional syncs across PM, design, and engineering teams, reducing decision lag by 30%. Implemented async workflows that improved sprint velocity by 22% over two quarters.
Example 2: Marketing Analyst
Before:
Responsible for analytics reports. Worked with campaigns. Helped improve CTR.
After:
Delivered weekly paid campaign analytics reports for $2M+ annual ad spend across Google Ads and Meta. Managed 8 concurrent campaigns, hitting ROAS targets in 6 of 8 channels. Ran A/B tests on 3 landing pages, improving CTR from 3.1% to 5.4%.
Example 3: Software Engineer
Before:
Built features. Worked on backend systems. Fixed bugs.
After:
Built 4 customer-facing features in Python/Django, serving 40K+ monthly active users. Refactored core authentication service, reducing API response time by 34%. Resolved 60+ bugs across 2 production releases with zero P1 incidents.
ATS Format: Avoid vs. Safe Alternative
| ❌ Do Not Use | ✅ Safe Alternative |
|---|---|
| Two-column layout | Single column |
| Text boxes | Regular paragraph text |
| Tables for layout | Plain text sections |
| Icons or graphics in body | No decoration |
| Photo | Not included |
| Contact info in header/footer | Contact in body text |
| "My Journey" as section heading | "Experience" or "Work Experience" |
| Logo images | Company name only |
Measurable Results from ATS Optimization
Before ATS checklist pass:
- 2 callbacks from 35 applications → 5.7% callback rate
After checklist pass (same candidate, 30 applications):
- 5 callbacks → 16.7% callback rate
What changed between the two rounds:
- Removed two-column template layout
- Renamed section headings to ATS-standard labels
- Added exact role keywords from each posting into summary and bullets
- Removed icon set in the skills block
- Fixed date formatting (years only → "Jan 2022 – Mar 2024")
No new experience. Same qualifications. Layout and keywords drove the entire lift.
60-Second Pre-Submit Checklist
Before every application, run through this:
- Single column? (No side panels or text boxes)
- ATS-safe font, 10–12 pt body?
- Section headings match standard labels?
- Contact info at top of body (not in header/footer)?
- Job title from posting in my summary?
- Keywords distributed across summary, skills, and bullets?
- Dates formatted as "Month Year – Month Year"?
- No tables, icons, or graphics in layout?
- File saved as .pdf or .docx (not image)?
- No obvious typos in company names, titles, or dates?
10 checks. Under 60 seconds.
FAQ
Q: Does every company use ATS software? A: Most companies with 50+ employees use ATS. Smaller companies and direct referrals often don't—but it's safest to assume ATS is being used unless you have a direct contact.
Q: Can an ATS-friendly resume still look professional? A: Yes. Clean, single-column resumes with good whitespace look professional to humans and parse correctly for ATS. Design and readability are not opposites.
Q: How important are keywords compared to experience? A: ATS ranks based on keywords; humans decide based on experience and impact. You need both. Optimize keywords to pass screening, then let your experience close the deal.
Q: What's the best file format—PDF or DOCX? A: PDF is safe for most modern ATS systems in 2026. If the application specifically requests DOCX, use that. When in doubt, PDF is lower risk.
Q: How many keywords should I include? A: Aim for 10–15 unique, relevant terms naturally distributed across summary, skills, and bullets. Quality and placement matter more than raw count.
Q: Are ATS systems getting smarter? A: Yes. Modern ATS platforms understand semantic relationships (e.g., "SEM" and "paid search" as related concepts). But formatting rules haven't fundamentally changed—single column, standard headings, and parseable text remain the baseline.
Q: Should I use a summary or an objective? A: Almost always a summary (3–4 sentences of experience + skills). An objective ("I want to...") is outdated and wastes prime keyword real estate.
Q: Does ATS see my visual formatting? A: ATS strips most visual formatting and converts to plain text for parsing. Your resume must communicate value through words and structure, not through design.
Want the advanced version? Read ATS Resume Optimization, How to Tailor Your Resume for Each Job, or check your resume live with the AI Resume Builder.
Who This Is NOT For
- Job seekers applying exclusively through personal referrals where ATS is rarely used
- Designers whose portfolio is the primary application asset
- People applying to roles where a creative or non-standard format is part of the evaluation
Scenarios to Know
- Career switchers: ATS scores lower on non-exact titles. Lead with a clear target title in your summary that matches the role type you're applying to, not your current title.
- Non-traditional backgrounds: Use a "Relevant Skills" section near the top to surface keywords that might be buried in unconventional experience descriptions.
- Employment gaps: ATS doesn't penalize gaps—humans might. Keep your date format consistent. Don't try to hide gaps with vague date ranges.
- Multiple simultaneous applications: Use one per-role tailored version each time. Track which versions scored well and where you heard back.