Most CVs are rejected for avoidable reasons. Not because the person isn't qualified, but because the CV breaks a basic rule — it's too long, it's stuffed with vague claims, it confuses the software that screens it, or it simply doesn't match the job. This guide walks through the CV mistakes that cost UK applicants interviews in 2026 and shows exactly how to fix each one. It's written for every industry: the same errors sink a chef's CV as an analyst's, and the same fixes lift them both.
Mistake 1: making it too long (or too short)
The single most common error is length. A three- or four-page CV buries your best material and signals you can't prioritise; a half-page CV looks thin. For almost everyone in the UK, two pages is the right target — one page is fine early in your career, and only very senior or academic CVs justify more. The fix is ruthless editing: lead with your most recent and most relevant roles, cut jobs from fifteen years ago down to a single line or drop them entirely, and remove anything that doesn't help you get this job. If you're unsure where the line sits, our guide to how long a CV should be covers it in detail. Length discipline isn't about cramming — it's about respecting that a recruiter spends seconds on the first pass and needs your strongest points up top.
Mistake 2: vague claims with no evidence
"Excellent communication skills." "Hard-working team player." "Results-driven professional." These phrases appear on almost every CV and mean nothing, because anyone can write them and none of them prove anything. The fix is to replace adjectives with evidence: instead of "great at customer service," write "handled 40+ customer queries a day with a 95% satisfaction score." Instead of "improved efficiency," write "cut stock-take time from four hours to ninety minutes." Numbers, outcomes and specifics turn a claim into proof. Even in roles without obvious metrics, you can quantify — how many people, how often, how much, how fast. A CV built on evidence reads as credible; a CV built on adjectives reads as filler, and recruiters have learned to skip straight past it.
Mistake 3: ignoring the ATS
Most medium and large UK employers screen CVs through an Applicant Tracking System before a human sees them, and a CV that confuses the software can be filtered out no matter how strong the content. The usual culprits are formatting choices that look nice but parse badly: text inside images or text boxes, multi-column layouts that scramble the reading order, headers and footers holding key details, and fancy graphics or tables. The fix is a clean, single-column layout with standard section headings (Work Experience, Education, Skills), a common font, and your contact details in the body rather than the header. You also need the right keywords — the actual terms from the job advert — because the ATS matches your CV against them. Our ATS-friendly CV guide shows the exact formatting, and how to pass AI resume screening covers the newer AI-based filters. Getting this right is invisible when it works and fatal when it doesn't.
Mistake 4: sending the same CV to every job
A generic CV fired at every vacancy is the slow killer. It might not get you rejected outright, but it consistently loses to candidates who tailored. Tailoring doesn't mean rewriting from scratch — it means adjusting your professional summary, reordering your bullet points so the most relevant ones come first, and mirroring the language of the advert (if they say "stakeholder management," use that phrase if it's true of you). Read the job description, identify the three or four things they clearly care about most, and make sure your CV answers each of them near the top. This single habit lifts response rates more than any design tweak, because it's the difference between a CV that could fit any role and one that visibly fits this one. To choose which abilities to foreground for each application, our list of skills to put on a CV helps you match yourself to the advert.
Mistake 5: small errors that quietly sink you
Finally, the details that feel minor but aren't. Typos and grammar slips suggest carelessness — and in a competitive pile, that's enough to be cut. Unexplained gaps left blank invite suspicion when a single line would settle them; our guide to explaining employment gaps shows how. An unprofessional email address, an out-of-date phone number, or a missing recent role all cost you. So does a cover-all-bases approach to honesty — exaggerations get caught at interview or reference stage and end candidacies. The fix is a final, slow proofread (read it aloud, or have someone else check it), consistent formatting and tense, accurate dates, and a clean, current set of contact details. None of this is hard; all of it is the difference between a CV that gets read and one that gets binned on a technicality.
FAQ
- What is the most common CV mistake?
- Length and vagueness top the list. Too many CVs run to three or four pages and fill them with unproven claims like "hard-working team player." The fix is a focused two-page CV (one page early-career) that leads with your strongest, most relevant material and replaces adjectives with specific, quantified evidence.
- How do I stop my CV being rejected by the ATS?
- Use a clean single-column layout with standard headings, a common font, and your contact details in the body rather than the header. Avoid text in images, text boxes, multi-column designs and graphics that confuse parsing. Include the real keywords from the job advert so the system matches your CV to the role.
- Should I use the same CV for every job?
- No. A generic CV consistently loses to tailored ones. Adjust your summary, reorder bullet points so the most relevant come first, and mirror the advert's language where it's genuinely true of you. Tailoring to the three or four things the employer cares about most lifts response rates more than any design change.
- Do small typos really matter on a CV?
- Yes. In a competitive pile, typos and grammar slips read as carelessness and are often enough to be cut. Proofread slowly (read it aloud or have someone check it), keep formatting and tense consistent, and make sure dates and contact details are accurate and current.
Atlas scores your CV against each UK job before you apply and flags the gaps that get applications rejected — across every industry. Create a free account to fix the mistakes before a recruiter ever sees them.