Is a cover letter necessary?

When cover letters are genuinely read

Certain hiring contexts make a cover letter worth writing. Small companies, nonprofits, creative agencies, and roles that involve writing or communication are the clearest examples. In these cases the hiring manager often reads applications personally and a well-written letter signals exactly the skill they are hiring for.

Roles that ask you to explain a career change, a gap, or an unusual background also benefit from a cover letter. A resume cannot easily say 'I spent three years running a family business and that is why I am applying to operations roles now.' A short letter can.

• The job posting explicitly says a cover letter is required or strongly encouraged
• The employer is a small team where the founder or manager reads every application
• The role is in writing, communications, PR, journalism, or content
• You are changing industries or explaining a gap longer than six months
• You have a personal connection to the company or a referral you want to name

When cover letters are ignored

Large employers using applicant tracking systems, known as ATS, often do not surface cover letters to recruiters at the screening stage. The recruiter sees a parsed resume and a match score. The letter sits in a folder that may never be opened.

High-volume roles in retail, logistics, customer service, and entry-level tech are the most common examples. If a posting receives several hundred applications, the recruiter's first filter is the resume, not the letter. Writing a long cover letter for these roles is usually wasted effort.

In Australia and Canada, government and public-sector roles often have structured selection criteria documents instead of cover letters. Submitting a traditional letter without addressing the criteria can actually hurt your application.

• The application is through a large ATS portal such as Workday, Taleo, or iCIMS with no prompt for a letter
• The posting says 'cover letter optional' and the role is high-volume
• The employer is a large corporation with a dedicated recruiting team
• The role is in a field where portfolios or work samples carry more weight, such as design or engineering

The quick decision rule

Ask yourself three questions before you start writing.

First, does the posting require it? If yes, write one. Second, is the field or company one where writing ability is part of the job? If yes, write one. Third, do you have something important to explain that your resume cannot show, such as a pivot, a gap, or a referral? If yes, write one.

If the answer to all three is no, skip the letter and spend that time tailoring your resume instead. A resume that matches the job description closely will do more work than a generic cover letter attached to a mismatched resume.

What a cover letter should actually say

If you do write one, keep it to three short paragraphs and under 300 words. Recruiters in the US, UK, Canada, and Australia consistently say they prefer brevity.

The first paragraph names the role and gives one specific reason you want this company, not just any company. The second paragraph connects two or three of your results directly to what the posting asks for. Use numbers where you have them. The third paragraph is a single sentence asking for the conversation.

Avoid opening with 'I am writing to apply for.' Avoid repeating your entire resume. Avoid phrases like 'I am a passionate team player.' These add no information and signal that the letter is a template.

1. Paragraph one: the role, the company, one specific reason you want this employer
2. Paragraph two: two or three results from your background that match what the posting asks for
3. Paragraph three: one sentence requesting the interview

Tailoring the letter to the posting

A cover letter that could be sent to any employer is almost always ignored even when it is read. The fastest way to make a letter feel tailored is to pull two or three phrases directly from the job description and use them in your second paragraph.

For example, if the posting says 'cross-functional collaboration' and 'data-driven decision making,' your paragraph might read: 'At Acme I led cross-functional collaboration between engineering and sales to build the reporting dashboard the team now uses for data-driven decision making on pricing.' That sentence mirrors the employer's language and shows you read the posting.

Break-In Bad writes a tailored cover letter per job from facts you confirm, so the letter reflects your actual experience rather than invented claims. If you are applying to roles where a letter is genuinely expected, having one that matches the posting's language is worth more than a polished generic version.

Country-specific notes for 2026

In the United States, cover letters are expected for roles in law, academia, nonprofits, and senior leadership. For most tech and corporate roles they are optional in practice even when listed as required.

In the United Kingdom, a cover letter is still a standard part of most professional applications. UK recruiters often read them and use them to assess written communication, so skipping one when it is listed as required is a real risk.

In Canada, federal government applications use a resume and a separate answers-to-criteria format. Provincial and private-sector roles follow similar norms to the US.

In Australia, many job ads ask for a cover letter and selection criteria response separately. Treating them as the same document is a common mistake. Address the criteria explicitly if they are listed.