Why your CV keeps getting rejected (and it's probably not what you think)

You've applied to 30 jobs. Maybe 50. You're qualified — you know you are. But the responses aren't coming, or they're all the same automated "we'll keep your details on file" brush-off.

The frustrating thing is you don't know where it's going wrong. Is it your experience? Your cover letter? The jobs you're picking?

In most cases, the answer is none of those. Your CV is being rejected before a human ever reads it. Here's what's actually happening.

The filter most job seekers don't know exists

Over 80% of UK employers now use Applicant Tracking Systems — ATS for short — to screen CVs before a recruiter touches them. Large companies, graduate schemes, NHS trusts, councils, banks, retailers. If you're applying to any organisation with a proper HR function, your CV is almost certainly going through one.

An ATS doesn't read your CV the way a human does. It parses the text, extracts information, and scores your application against the job description. If you score below a certain threshold, you're filtered out. Automatically. No human involved.

The threshold varies by employer and role, but a rough rule of thumb: aim for at least a 75% keyword match against the specific job description you're applying to. Most people's CVs sit somewhere around 40–60%.

Why your CV is probably failing the scan

1. You're using the wrong words

This is the most common problem — and the most fixable. ATS systems match your CV against the exact language in the job description. If the job advert says "stakeholder management" and your CV says "working with clients," the system may score that as a gap — even though they mean the same thing.

You haven't done anything wrong. You've just used different words. The fix: read the job description carefully and mirror its language in your CV. Not word-for-word copying, but using the same terminology for the same skills.

2. Your formatting is confusing the parser

ATS software reads CVs as plain text. Tables, columns, text boxes, graphics, headers and footers — these cause parsing errors. The system can't extract the information correctly, so it either misreads your experience or misses it entirely. Common formatting mistakes that break ATS parsing:

• Two-column layouts (very popular on Canva templates — almost always ATS-unfriendly)
• Tables for skills or employment history
• Text inside shapes or text boxes
• Headers and footers containing key information like your name or contact details
• Fancy fonts or icons that don't convert to plain text

A simple, single-column layout is almost always safer for ATS purposes. Boring on the page, but it gets through.

3. You're sending a generic CV to every job

Your CV should be different for every application. Not completely rewritten — but adjusted to match the keywords, priorities, and framing of each specific role. Most people send the same document to every employer. Against an ATS, that puts you at a significant disadvantage versus candidates who've tailored theirs.

This is where most people give up. Tailoring 20 CVs takes hours. Which is exactly why tools that do it automatically exist.

4. Your CV has gaps the ATS is flagging

ATS systems are also looking for expected content. Certain sections — a professional summary, clear employment dates, quantified achievements — are standard signals of a complete, credible application. If your CV is thin in certain areas (not because you lack experience, but because you haven't written it up properly), the ATS will score you lower.

What this looks like in practice

Say you're applying for a marketing coordinator role at a mid-sized UK company. Here's how a human's reading of your CV can differ sharply from the ATS's keyword match:

To a human reader who understands context, your CV looks relevant. To an ATS doing keyword matching, you've missed four out of five signals — and you're filtered out before anyone reads it.

How to find out if this is happening to you

The simplest way: run your CV through an ATS checker that scores it against the actual job description — not a generic checklist. Generic ATS scores ("your CV is 78% ATS friendly") are almost meaningless. What matters is how your CV performs against the specific role you're applying to. A CV that scores well for one job may score poorly for another. What you're looking for from an ATS check:

• A score against the specific job description you're applying for
• The exact keywords you're missing
• Formatting issues flagged clearly
• Suggested fixes — not just problems

Nailedit.cv does this for free, with no account needed. Upload your CV, paste the job advert, and you'll see your ATS score, the missing keywords, and a rewritten version of your CV that addresses the gaps — in about 60 seconds. It also asks you questions to fill in experience gaps it finds: rather than just flagging a missing skill, the AI coaches you through how to represent what you actually have. That's the part most tools don't do.

A note on what ATS optimisation isn't

Optimising your CV for ATS doesn't mean stuffing it with keywords or misrepresenting your experience. It means writing clearly about what you've actually done, using the language the employer is looking for, in a format the software can read.

If you have the experience, the job of your CV is to make sure it gets seen. That's it. ATS optimisation is about removing unnecessary barriers between you and a human interview. Once you're in the room (or on the video call), your actual skills and personality take over. But you have to get past the filter first.

The practical fix

Here's what to do for your next application:

1. Read the job description properly. Note the specific skills, tools, and phrases it uses.
2. Check your CV against it — either manually or with a tool like Nailedit.cv.
3. Fix the keyword gaps. Add the missing terms where you genuinely have that experience.
4. Simplify your formatting. Single column, no tables, no graphics.
5. Quantify where you can. Numbers make claims credible — "increased sales by 23%" beats "responsible for sales growth."

Then repeat for the next application. A tailored CV takes more time upfront, but it significantly improves your chances of getting to the stage where your actual skills can do the talking.

Common questions