7 Cover Letter Mistakes That Get You Deleted in Under 10 Seconds

Why Cover Letters Get Rejected Fast

A hiring manager with 200 applications doesn't read every cover letter carefully. They scan. Their brain is trained to spot certain patterns — and when it sees them, it says "no" before consciously deciding anything. That's not harsh. It's just how fast pattern recognition works.

These 7 mistakes are the ones that trigger that response most reliably. Fix them and your letter immediately stands out from 80% of what they receive.

Mistake 1: Starting With "I Am Writing To..."

This opener is the most common cover letter line in existence. It tells the reader nothing they don't already know. They posted the job. You applied. Obviously you're writing to express your interest.

The fix is simple. Start with something specific. A result you've achieved, something you noticed about the company, or a one-line description of what you do and what you're looking for. Anything that's actually yours.

Mistake 2: Restating Your Resume

The cover letter isn't a second resume. Hiring managers read your resume first. If your cover letter just repeats the same information in slightly different words, they'll stop reading it immediately — because it offers nothing new.

Your cover letter should add context. Explain why a specific experience matters. Give a number that didn't fit in the resume. Tell them why this particular company, not just any company.

Mistake 3: Writing Too Much

Long cover letters signal that you don't know what matters. If you can't edit yourself down to three short paragraphs, you haven't thought hard enough about what's actually relevant.

Three paragraphs. That's the target. Hook, proof, close. Under 250 words. If you're over that, cut. Start by removing any sentence that contains the phrase "I believe" or "I feel".

Short is hard. Do it anyway.

Mistake 4: Talking About What the Job Offers You

"This role would be a great opportunity for me to develop my skills in..." — nope. The hiring manager doesn't care what this job does for your career. They care what you do for their team.

Flip every sentence that's about your benefit. Make it about their problem and how you solve it. "I want to grow in X" becomes "I've spent three years building X and I can bring that directly to your team."

Mistake 5: Generic Compliments About the Company

"I have long admired your company's innovative approach and commitment to excellence." What does that even mean? It means nothing. And hiring managers can tell you copied it from a template.

If you're going to mention the company specifically — and you should — make it real. Name a product. Reference something they published. Mention a team decision you thought was smart. Anything that proves you actually looked.

Mistake 6: Passive Voice Throughout

"The project was completed under my supervision" — by who? "Revenue was increased by 40%" — who increased it? Passive voice buries you. It makes you sound like an observer, not the person who did the work.

Rewrite every passive sentence. "I led the project" instead of "the project was led". "I grew revenue 40%" instead of "revenue was increased." Active voice is more confident, more readable, and takes fewer words.

Mistake 7: A Weak or Begging Close

"I hope you'll consider my application" is not a close. It's a wish. And "I would be incredibly grateful for the opportunity to interview" puts the hiring manager in the position of doing you a favour, which is the wrong dynamic.

A good close is direct and confident. "I'd love to talk through how my background in X fits what you're building — happy to set up a call." It's not pushy. It just treats the conversation as a normal business interaction between equals.

Want a full guide on structuring your cover letter properly? Read our article on how to write a cover letter that gets read.