ATS Cover Letter Guide: How to Write an ATS-Friendly Cover Letter in 2026
How to write an ATS-friendly cover letter: a single-column format, 250–400 words in four short parts, and 4–6 job-description keywords in natural sentences.
8 min read · 2/12/2025
Free ATS CV checker — see how Workday reads your resume
Upload PDF or DOCX for a free ATS scan and CV ATS check. Preview parsing output for Workday, Greenhouse, Taleo, and other major ATS platforms before you apply.
Many companies load cover letters into the same ATS that parses resumes. If your letter uses headers, graphics, or vague language, it can get filtered out before anyone reads it.
Use this guide to structure, keyword-optimize, and personalize cover letters that survive ATS scans and still feel human.
Research and guidance powered by ATSHiring Parseability Index.
Key Takeaways
- Cover letters must follow ATS-safe formatting—no headers, graphics, or multi-column layouts.
- Mirror the job description’s keywords and show proof in a concise story.
- Personalize every letter with company-specific context.
- Test the document with ATS Hiring to catch formatting or keyword gaps before submitting.
Structure and Formatting
Keep the document clean: single column, standard fonts (Arial, Calibri, Times New Roman), 10–12pt text, and one-inch margins. Avoid headers, footers, or sidebars—some ATS ignore them.
Aim for 250–400 words split into four short paragraphs: hook, value, proof, and close.
- Place contact information in the body (not the header) so ATS captures it.
- Address a real person when possible; if unknown, use the hiring manager’s role or "Hiring Team".
- Open with a hook that mirrors the job title and core outcome ("As a Senior PM who scaled AI products to 1M+ users...").
- Use short paragraphs or bullet snippets for readability—two to three sentences each.
- Save as DOCX or text-based PDF; avoid scans or exported images.
Keyword Strategy & Personalization
Cover letters need the same keywords as resumes. Mirror the job description’s phrasing for hard skills, certifications, and industries, but weave them into story-driven sentences.
Personalization proves fit: reference a recent company milestone, product launch, or value statement to show you did your homework.
- Include 4-6 must-have keywords (tools, methodologies, industries) in natural sentences.
- Mention both the acronym and full term ("Search Engine Optimization (SEO)").
- Highlight one quantifiable achievement that aligns with the company’s KPIs.
- Explain why the company or mission matters to you in one sentence.
- Close with a direct next step ("I’d welcome the chance to discuss how we can..."), not a generic thank you.
Common Cover Letter Mistakes
- Copy-pasting the resume summary without adding context.
- Dense paragraphs longer than five lines—recruiters won’t read them.
- Buzzword stuffing without proof.
- Using templates with tables, columns, or graphics that ATS can’t parse.
- Forgetting to customize the letter for each job.
Pro Tips for 2026
- Create a modular cover letter: hook, value prop, proof paragraph, and close. Swap modules per application.
- Reference company news, product launches, or Glassdoor insights to show genuine interest.
- If you use AI to draft, always rewrite in your voice and add specific metrics.
- Add hyperlinks in plain text (https://) to portfolios or case studies—ATS keeps them clickable.
- Proofread aloud to catch filler language and ensure the letter sounds conversational.
How ATS Hiring Helps
Paste your cover letter into ATS Hiring to see keyword coverage, formatting warnings, and readability scores before you submit.
Compare the letter against the job description to confirm you’ve hit the top skills and keywords the employer is screening for.
FAQ
Free ATS CV checker — see how Workday reads your resume
Upload PDF or DOCX for a free ATS scan and CV ATS check. Preview parsing output for Workday, Greenhouse, Taleo, and other major ATS platforms before you apply.