Your resume lists what you have done. A cover letter answers why you fit this role — and gives a hiring manager a reason to open the PDF. In 2026, many applications still offer an optional letter field; “optional” often means the people who send a sharp one stand out.
This guide is the structure playbook: when to send a letter, a three-part outline that stays readable, how to tailor without rewriting from zero, and how to keep the letter honest. For pairing the letter with the same job description as a tailored resume (one paste, matching language), see cover letter from the same job description.
Primary tool: cover letter builder. Free master start: free resume builder. Plans: pricing.
Wizume Free includes unlimited PDF downloads of your master resume and one free application pack; after that, Pro Monthly unlocks unlimited tailoring, cover letters and ATS scans.
UK readers: same product if you say CV — see CV builder and resume vs CV.
When you need a cover letter
Send one when:
- The posting asks for it (always follow instructions).
- The company site has an optional letter upload — optional often means recommended, especially at smaller teams and mission-driven orgs.
- You are pivoting careers, returning after a gap, or applying from a non-obvious background, and the resume alone does not connect the dots.
Skip it only when the application explicitly says not to include one. Do not invent a letter requirement that is not there.
The three-part structure that works
Aim for 250–400 words. One page. Short paragraphs. Plain formatting — decorative headers and text boxes help no one.
1. Hook (why this company, why this role)
One short paragraph. Name the role. Show you understand a real problem or product at the company — not “I am writing to apply,” which wastes the first line. End the hook with your strongest relevant credential in plain language.
Bad: “I am excited to apply for the open position at your innovative company.”
Better: “I am applying for the Customer Success Manager role. Your product serves mid-market SaaS teams; I spent three years reducing churn for a similar segment at [Company].”
2. Proof (two achievements that match the job)
Pick two achievements that mirror the posting’s top requirements. Prefer numbers and outcomes over duties. Echo a few keywords from the job description where they are true — the same honesty rule as resume keywords (ATS resume keywords). Do not invent experience to hit a phrase.
This paragraph should feel like a sharper reading of your resume for this role, not a prose dump of every bullet.
3. Close (clear next step)
Thank them in one line. Restate interest in this role. Sign off with your name and the best contact method already on the resume. No gimmicks, QR codes, or “I will call you Tuesday.”
Tailor without rewriting from zero
Keep a master outline (hook skeleton + proof bank + close). For each application, swap:
- Company name and one specific detail (product, customer, recent news you can defend).
- The two proof bullets — choose different achievements when the role emphasis shifts.
- A handful of posting keywords that are already true of your work.
That is faster than a blank page and cleaner than a recycled letter with the wrong company name. Full same-JD workflow with a tailored resume copy: cover letter from the same job description. Master vs tailored resume: master resume vs tailored copy.
Match tone to the employer
Read the posting once for voice. Startup → concise and direct. Law firm or public sector → more formal. Nonprofit → mission-forward without fluff. Mirror their language; do not copy paragraphs verbatim.
What Wizume does (and does not)
Wizume’s cover letter builder drafts from your saved resume profile plus a pasted job description — the same loop as tailor and ATS score:
- Paste (or clip this tab’s listing with the Chrome extension — no autofill, no LinkedIn scrape, no named job-board list).
- Get an AI draft you accept, edit, or reject. It is an opinionated draft, not career, legal, or financial advice.
- Keep the story consistent with the resume you actually send.
PDF export is print-from-preview, not a “pixel-perfect” marketing claim. Layouts come from twelve parser-safe resume templates (Free includes Modern, Classic, and Simple; Pro unlocks all twelve). DOCX export is Pro and is not a pixel copy of the HTML preview — see resume PDF vs Word.
We do not guarantee interviews, reply rates, or ATS “pass” percentages. Guest resume checker is a keyword/formatting preview and doesn't run the AI model; it does not replace a letter.
Free vs Pro for letters
Cover letter generation sits in the same application workflow (tailor, cover letter, and ATS score) as tailor and ATS:
| Free | Pro Monthly | |
|---|---|---|
| Master PDF | Unlimited (signed-in master) | Unlimited |
| AI / tailor / ATS / cover | 1 free application pack (lifetime), then Pro | Unlimited |
| Templates | 3 (Modern, Classic, Simple) | All 12 |
| DOCX | No | Yes |
After your free application pack is used, Pro Monthly unlocks unlimited tailoring, cover letters and ATS scans. See pricing and Free vs Pro.
Common mistakes
- Repeating the entire resume in prose.
- Generic praise (“your company is a leader in innovation”) with no company-specific detail.
- Typos in the hiring manager’s name or the company name (especially when you reuse a letter).
- Inventing skills to mirror every keyword in the posting.
- Treating a polished AI draft as final without an edit pass.
Build resume and letter together
A strong letter starts from a strong, honest resume. Use the ATS resume builder or free resume builder, browse resume examples by role, then draft the letter from the same profile so names, titles, and achievements stay consistent. Tailor workflow: how to tailor a resume to a job description.
FAQ
How long should a cover letter be?
Usually one page, about 250–400 words. Recruiters skim. If you need more space, put it in the resume bullets — not a second page of letter.
Do I need a cover letter for every job?
Only when asked, when the field is optional and you have a real angle, or when the resume alone cannot explain the fit. Skip when the application says not to.
Can Wizume write the letter for me?
It can draft from your resume and a pasted JD. You still own every word that goes out — accept, edit, or reject. Start at the cover letter builder.
Resume or CV?
Same product. US default says resume. UK (en-GB) says CV.
Write the letter for this role
Create a cover letter from your resume and this job’s posting — then keep the master and send the tailored pair from wizume.ai or the free resume builder.