What is the biggest resume mistake?

Listing duties instead of achievements. Employers want to see what changed because you were there, not a list of what the job required.

Do typos really matter on a resume?

Yes. A typo can suggest carelessness, and many hiring managers use it as an easy reason to move on. Proofread aloud and ask someone else to read it.

Should I send the same resume to every job?

It is better to adjust your summary, skills and top bullets for each role so the match is obvious. The adjustment can take ten to fifteen minutes.

7 Resume Mistakes That Are Costing You Interviews

QUICK ANSWER

The most common resume mistakes are a vague or missing summary, bullets that list duties instead of results, typos, a generic resume sent to every job, cluttered formatting and missing contact details. Fixing these improves how both recruiters and software read your resume.

Why Good Candidates Get Ignored

It's not always about being underqualified. Many excellent candidates get filtered out before a recruiter ever reads their resume, not because of their experience, but because of easily fixable mistakes in how their resume is written, formatted, or structured.

Here are the 7 most common resume mistakes, and how to fix each one today.

Mistake 1: Writing Responsibilities Instead of Achievements

The most common mistake on resumes is listing what you were supposed to do instead of what you actually accomplished.

❌ Wrong: "Responsible for managing the customer success team."

✅ Right: "Led customer success team of 8, improving retention from 74% to 89% in 12 months."

Every bullet point should answer: what happened because you were there? If the bullet sounds like it could have been on anyone's job description, rewrite it with a metric.

Mistake 2: Not Tailoring for Each Application

Sending the same resume to every job is one of the biggest silent killers. ATS systems score your resume against the job description, a generic resume usually matches fewer of the job's keywords than a tailored one.

You don't need to rewrite your entire resume for every job. Make these targeted changes:

Adjust your professional summary to reflect the role
Add keywords from the job posting to your skills section
Reorder bullet points to lead with the most relevant experience

This takes 10–15 minutes per application and meaningfully increases your response rate.

Mistake 3: Unprofessional or Missing Contact Information

Recruiters report rejecting resumes for these contact information issues:

Email addresses like "partyguy1998@gmail.com" or "hotmail" domains
Missing LinkedIn URL (especially for professional roles)
No location (remote or city/country, some roles require specific locations)
Phone number only (missing email)

Use a professional email (firstname.lastname@gmail.com), include your LinkedIn, and list your city/country or "Remote, Open to Relocation" if applicable.

Mistake 4: Formatting That Breaks ATS Parsing

Design elements that look beautiful to humans are invisible, or actively harmful, to ATS systems:

Tables and columns, ATS reads these out of order or skips them
Text boxes, not read at all by most parsers
Headers and footers, many systems skip these entirely
Images and icons, ATS can't read images
Fancy fonts, parsers struggle with non-standard fonts

Use clean templates with standard formatting. Our builder uses ATS-safe templates by default.

Mistake 5: Resume Is Too Long (or Too Short)

The right resume length depends on experience:

0–5 years experience: 1 page, no exceptions
5–15 years experience: 1–2 pages
15+ years / executive roles: 2 pages max

The most common mistake is a 3-page resume from someone with 4 years of experience. Pare it down. Ruthlessly cut anything that doesn't directly support why you're right for this role.

Mistake 6: Listing Skills Without Evidence

Anyone can write "Leadership" or "Strategic Thinking" in their skills section. These empty soft skills add nothing. Recruiters skim past them.

Two approaches that actually work:

Only list skills you can back up with a bullet point in your experience: if you list "Data Analysis," have a bullet that shows a data analysis result.
Be specific: "Python (5 years, NumPy, pandas, scikit-learn)" beats "Programming."

Mistake 7: Typos, Inconsistent Formatting, and Grammar Errors

Many hiring managers say a single typo can be enough to pass on a resume. In competitive hiring environments, a typo signals carelessness, exactly the wrong message.

How to catch them:

Read your resume backwards (bottom to top) to catch spelling errors your brain autocorrects
Read it out loud, awkward phrasing stands out
Ask one other person to proofread it
Check formatting consistency: are all dates in the same format? Same bullet style? Same font throughout?

Fix These in 30 Minutes

None of these mistakes take hours to fix. Set a timer for 30 minutes and go through each one. Then run your updated resume through our ATS checker to get a compatibility score and catch any remaining keyword gaps.

Small improvements to your resume compound into dramatically better response rates. A 1-in-50 response rate that becomes 1-in-20 doubles your number of interviews without changing your job search volume at all.