10 common resume mistakes (and how to avoid them)

~6 min read · Updated 2026

Sometimes it is not a lack of talent — it is a resume with mistakes that get it discarded in seconds. These are the most frequent ones and how to fix them.

1. Spelling mistakes

They instantly cost you credibility. Proofread, use a spell-checker and have someone else read it.

2. The same resume for every job

Tailor the summary and keywords to each posting. A generic resume shows, and performs worse.

3. Listing tasks instead of achievements

"Responsible for…" says nothing. Show results: action verb + what you did + a number.

4. Too long

One page if you have less than 10 years of experience; two at most. Put the essentials first.

5. Irrelevant or excess information

Hobbies that add nothing, experience from 20 years ago, or unnecessary personal data. Cut them.

6. A design that fails the ATS

Complex tables, odd columns or text inside images confuse automated filters. Keep the format clean and export a PDF with real text.

7. Incomplete or unprofessional contact details

A serious email (not "partyanimal@…"), phone and city. Double-check there are no typos in your contact info.

8. No metrics

Numbers add credibility. Whenever you can, quantify your achievements (%, amounts, time, volume).

9. Lying or exaggerating

It surfaces sooner or later, in the interview or on the job. Be honest; present what is real, well.

10. Not reviewing before sending

A final pass avoids the classic "attached is my CV for the role at [another company]". Mind the details.