Most cover letters fail before a human ever reads them. ATS systems scan cover letters alongside resumes, and a letter that ignores keyword matching, uses heavy formatting, or opens with "I am excited to apply" is filtered out quietly — with no feedback.
The good news: writing an ATS cover letter is not complicated. It requires the right structure, the right keywords pulled from the job description, and a tone that matches the company's register. Here is the complete guide.
Yes — most modern ATS platforms (Greenhouse, Lever, Workday, iCIMS, Taleo) parse cover letters as a separate document that contributes to your overall application score. Keywords in your cover letter add to the keyword signal the system is looking for. Candidates who ignore this are leaving match score points on the table.
The nuance is that cover letters are usually weighted less heavily than resumes. But for competitive roles where many candidates score similarly on resume keywords, a strong cover letter can be the tiebreaker that pushes your application forward.
Two to three sentences. Do not open with "I am excited to apply." Open with a specific reason you want this role at this company — reference their product, a recent announcement, or a specific challenge the role addresses. This also signals personalization to the ATS.
One paragraph covering the two or three most important requirements from the job description. Use the exact language of the posting — "cross-functional stakeholder management," not "working with different teams." This is where your keyword density lives.
One paragraph that adds new information not already on your resume. This is critical for complement scoring. If your letter just restates bullet points, it has no persuasive value. Add motivation, specific company context, or an insight that shows you understand their business.
One to two sentences. Avoid "I look forward to hearing from you." Instead, propose a next step: "I would welcome the opportunity to discuss how my background in X maps to your team's current goals."
Does your cover letter have the right keywords?
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The source of truth is the job description. Read it once and highlight every skill, tool, methodology, and outcome-related term. Then split your list into two groups:
This is what a cover letter keyword checker should show you. Not just "what keywords are missing from the letter" — but "what keywords are missing from the letter that are NOT already on your resume."
ATS systems parse tone signals indirectly through language patterns. But human readers notice immediately when tone is wrong. A formal corporate letter sent to a seed-stage startup that describes itself as "no-ego, move-fast" reads as a red flag.
Before writing, read the job description once specifically for register. Look for:
Mirror the register. Not exactly — but close enough that your letter reads as coming from someone who understands the company's culture.
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Opening with "I am excited to apply." It signals nothing about you or the company. Replace with a specific sentence that only you could write for this role at this company.
Repeating your resume. The cover letter's job is to add new context, not restate bullet points the reader has already seen. If your letter could be generated from your resume, it adds no value.
Using synonyms instead of the job's exact language. "Team collaboration" and "cross-functional teamwork" are not the same string. Use the posting's phrasing.
Too long. Three paragraphs. Under 350 words. Anything longer signals poor communication — exactly the opposite of what most roles require.
Yes. Most modern ATS platforms parse cover letters alongside resumes. Keywords in your cover letter contribute to your overall match score — candidates who ignore this leave scoring points on the table.
Plain single-column text. No tables, text boxes, headers, or footers. Submit as DOCX or plain PDF. ATS parsers frequently skip content inside special formatting elements.
Three to four short paragraphs, 250 to 350 words. ATS systems do not reward length. Human reviewers penalise it. Cover the most important points only.
Yes. ATS systems compare strings, not meaning. Mirror the exact phrasing from the posting wherever the experience is genuine.