More than 98% of Fortune 500 companies now use an applicant tracking system (ATS) to manage incoming CVs. For most mid-sized and large employers, your CV never reaches human eyes until it passes an automated screening first. This is the reality of modern hiring.
This guide covers what an ATS is, how it works, and exactly how to write a CV that passes ATS screening without sacrificing human readability. It includes keyword tactics, formatting rules, and a practical checklist.
What Does ATS Stand For?
ATS stands for Applicant Tracking System. It is software that employers use to:
- Collect job applications automatically
- Parse CVs into structured data fields
- Search and filter candidates by keywords
- Rank or score CVs against job descriptions
- Track candidates through the hiring pipeline
- Automate communication with applicants
The major ATS platforms include Workday, Taleo, Greenhouse, Lever, iCIMS, SmartRecruiters, SAP SuccessFactors, and BambooHR.
How Does an ATS Work?
An ATS processes your CV in 3 main steps:
Step 1: Parsing
When you upload your CV, the ATS reads the text and breaks it into structured fields (name, contact details, work experience, education, skills, etc.). Parsing errors happen when the CV has unusual formatting, tables, or images.
Step 2: Keyword matching
The ATS (or the recruiter using it) searches for keywords from the job description. 99.7% of recruiters say they use keyword filters to narrow the candidate pool.
Step 3: Ranking and scoring
Modern ATS platforms score CVs based on how closely they match the job description. Your score depends on:
- Exact keyword matches
- Semantic similarity (newer AI-powered systems)
- Work experience length
- Required certifications and skills
If your score is too low, your CV is filtered out before any human reviews it.
Which Companies Use ATS?
In 2026, use is widespread across most of the economy:
- 98%+ of Fortune 500 companies
- 75%+ of mid-sized businesses (100-1,000 employees)
- Most tech startups that hire through structured processes
- Government and public sector employers
- Recruitment agencies
You should assume that any medium or large employer uses an ATS. The few exceptions tend to be very small companies (under 20 people) or sectors with informal hiring practices.
How to Make Your CV ATS-Friendly
Passing ATS screening is a matter of following specific rules consistently. Here is the full playbook.
Rule 1: Use standard section headings
ATS software looks for recognised headings to categorise your content. Use:
- "Summary" or "Professional Summary"
- "Experience" or "Work Experience"
- "Education"
- "Skills"
- "Certifications"
Avoid creative variations like "My Professional Journey," "Where I Have Worked," or "What I Bring." These can cause parsing errors.
Rule 2: Use a clean, single-column layout
Multi-column layouts confuse many ATS parsers. Some put text from the second column before the first, jumbling your CV. Stick to single-column designs.
Rule 3: Avoid tables, images, and graphics
Icons, profile photos, skill rating bars, and infographic-style CVs often fail to parse correctly. Keep the layout text-based.
Rule 4: Use standard fonts
Safe fonts include Arial, Calibri, Georgia, Garamond, and Times New Roman. Avoid unusual or decorative fonts, which may not render consistently across systems. For more, see our best font for CV guide.
Rule 5: Keep contact details out of headers and footers
Some ATS parsers cannot read content in headers or footers. Keep your name, email, and phone number in the main document body.
Rule 6: Save in the right file format
Most ATS platforms handle both .docx and .pdf. If the posting does not specify, submit as .docx (most widely compatible). For text-based PDFs, parsing is usually reliable, but image-based PDFs (scans) fail.
Rule 7: Use both full terms and acronyms
"Search Engine Optimization (SEO)" and "Project Management Professional (PMP)" cover both cases. Some ATS searches prioritise abbreviations, others look for full phrases.
Rule 8: Mirror exact language from the job description
The job description is the source of the keywords the ATS will search for. If it says "client management," use "client management," not "customer relations." Small wording differences can cost you matches.
How to Choose the Right Keywords
Step 1: Read the job description carefully
Highlight every:
- Skill or tool mentioned
- Certification required
- Software platform named
- Industry-specific term
- Soft skill phrased in a distinctive way
These are your target keywords.
Step 2: Prioritise hard skills
Hard skills are easier for ATS systems to match than soft skills. Make sure every hard skill from the posting that applies to you appears on your CV (if genuinely true).
Step 3: Place keywords in multiple sections
A keyword in just one place can be missed. Strong CVs include the most important keywords in:
- The CV summary
- The skills section
- The work experience bullets
- The certifications section (where relevant)
Step 4: Avoid keyword stuffing
Modern ATS systems (and the human recruiters who use them) can detect unnatural keyword repetition. Use each keyword naturally, ideally 1 to 3 times across the CV.
Step 5: Include industry-specific terminology
If the job posting is for a healthcare role, use clinical terms. For a financial role, use financial terminology. ATS systems in specialised industries often filter by sector-specific keywords.
ATS-Friendly CV Template Structure
(Your Full Name)
(City) | (Phone) | (Email) | (LinkedIn URL)
---
Summary
3-4 sentences with top 2-3 keywords from the job description.
---
Skills
Grouped by category. Include 8-12 role-relevant skills, using exact terms from the job posting.
---
Work Experience
Job Title | Company | Dates
- Achievement-focused bullet with metric, using keyword from job posting
- Second bullet with different keyword and metric
- Third bullet focusing on scope or scale
(Repeat for 3-5 most recent roles)
---
Education
Degree | Institution | Dates
---
Certifications
Current certifications with dates.
Before and After: An ATS-Optimised CV Example
Before (weak for ATS)
Summary
Creative marketing professional with a passion for storytelling and data-driven strategy.
My Journey
Spent several years doing marketing work across various companies.
After (strong for ATS)
Summary
Digital Marketing Manager with 6 years of experience in B2B SaaS. Proficient in Google Analytics, Google Ads, SEO, and HubSpot. Increased organic traffic from 50K to 300K monthly visits over 18 months through content marketing and technical SEO.
Work Experience
Digital Marketing Manager | TechFlow | Jan 2023 - Present
- Led SEO strategy that increased organic traffic by 500% in 18 months
- Managed £400K annual Google Ads budget with 4:1 ROAS
- Implemented HubSpot marketing automation across 5 campaigns
Notice how the second version:
- Uses specific terms from likely job descriptions (Google Analytics, SEO, HubSpot, Google Ads)
- Includes quantified achievements
- Uses standard section headings
- Contains both the job title and industry keywords
Common ATS Myths Debunked
Myth 1: "ATS filters out all creative CVs"
Not quite. ATS systems filter CVs that fail parsing (due to graphics, tables, or headers). Creative content with clean formatting passes fine.
Myth 2: "You should stuff keywords throughout your CV"
Modern ATS systems detect unnatural keyword stuffing. Keywords should be used once or twice where they naturally fit.
Myth 3: "White-on-white keyword hacks work"
This is a banned practice. Adding invisible text (e.g., white text on a white background) full of keywords often gets detected and flagged, and can disqualify your application entirely. Do not do this.
Myth 4: "PDF is always better than Word"
Both work in most modern ATS systems. If the posting does not specify, .docx is slightly safer. Image-based PDFs (scanned documents) fail almost every ATS.
Myth 5: "Your CV just needs the right keywords"
Keywords get you past the first filter. Your content still has to hold up to human review after that. Content quality matters.
How to Test Your CV for ATS Compatibility
1. Copy and paste test
Copy the text from your CV and paste it into a plain text editor. If the content is scrambled, in the wrong order, or missing sections, the ATS will have the same problem.
2. Job description match check
Compare your CV to the job description side by side. Count how many of the top 10-15 keywords from the posting appear on your CV. Aim for at least 70% coverage.
3. Use an online ATS checker
There are tools (including CV-Review.com) that scan your CV against a specific job description and flag parsing issues, missing keywords, and formatting problems.
Profession-Specific ATS Tips
Different industries have different common keywords. See our profession-specific CV guides for details:
Other key considerations:
Canadian resume format
If you are applying in Canada, specific local conventions matter. See our Canadian resume format guide.
CV vs resume (naming conventions)
In some regions, the document is called a "resume" rather than a "CV." See our CV vs resume guide.
Frequently Asked Questions
Do small companies use ATS?
Many do. ATS platforms are affordable enough now that even companies with 20-50 employees use them. Assume yes unless you know otherwise.
Can I have multiple versions of my CV for different roles?
Yes, and you should. Tailoring your CV keywords to each specific job description significantly improves your ATS match rate. Maintain a master CV, then adjust for each application.
What if I genuinely do not have a skill the job posting requires?
Do not list it. ATS systems and recruiters detect false claims quickly. Focus on the skills you do have that are closest matches, and address any gap in your cover letter.
Does CV length affect ATS scoring?
Not directly. What matters is keyword coverage and relevance. However, a 1-2 page CV (depending on seniority) is typically the right length. See our CV length guide.
How do I know if my CV passed the ATS?
Typically you do not know. If you get an interview request or a rejection email, it suggests your CV was reviewed. Silence often means it was filtered out, though slow hiring is also common.
Does LinkedIn affect ATS?
Indirectly. Some ATS systems pull candidate data from LinkedIn profiles. Keeping your LinkedIn consistent with your CV improves your chances of being found and matched correctly.
Are newer AI-powered ATS systems more lenient?
They are better at semantic matching (understanding context), but they are still strict about formatting. Clean formatting and keyword-rich content remain essential even with AI-powered systems.
Key Takeaways
- ATS is software used by 98%+ of Fortune 500 companies to filter and rank CVs
- Your CV needs to pass 2 filters: parsing and keyword matching
- Use standard section headings, single-column layouts, and safe fonts
- Mirror exact language from the job description
- Place key keywords in the summary, skills, and work experience sections
- Use both full terms and acronyms (e.g., "Search Engine Optimization (SEO)")
- Avoid tables, graphics, and creative section headings
- Save as .docx or text-based .pdf, not image-based PDF
- Test your CV by copying to a text editor and checking parsing