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Screening & Vetting14 May 2026 · 4 min read · Updated 27 September 2026

Explaining gaps in employment history, properly

Most people's employment history has gaps in it, for entirely ordinary reasons — unemployment between roles, caring responsibilities, study, travel, ill health, or periods that simply were not employment at all. A gap is not, by itself, a red flag. What matters to a screening file is whether the gap has been asked about, and whether the answer has been written down.

The distinction that actually matters

There is a real difference between a gap that was investigated and reasonably explained, and one that was simply left blank because nobody asked. An assessor reviewing a file cannot tell those two situations apart unless the explanation is actually recorded — a conversation that happened but was never written down is, from the file's point of view, indistinguishable from a conversation that never happened.

What a recorded explanation should include

  • The period covered by the gap, stated clearly rather than left approximate
  • What the applicant says they were doing during it
  • Anything used to corroborate that account, where corroboration is reasonably available
  • Who reviewed the explanation and when, so the file shows a decision was made rather than an entry that appeared unattended

This applies whether the gap is short or long. A three-week gap between contracts and a two-year gap for caring responsibilities are asking different questions, but both need the same discipline of being written down at the time, rather than reconstructed later from memory when a file is requested.

When a gap should raise more than an explanation

Some gaps warrant more than a written note — an account that does not add up, a refusal to discuss a period at all, or a pattern of gaps across several jobs that is never quite explained the same way twice. None of this has a fixed rule that applies to every case; it is a judgement call, and it is one worth having a second, more senior person make rather than leaving to whoever happens to be processing the application that day.

For how this fits into the wider verification process, see verifying employment history for security officers.

The gap is not the problem; the absence of an account is

A gap in employment history is ordinary. Illness, caring responsibilities, travel, study, redundancy and time out of work are all common and none is disqualifying in itself. What creates difficulty is a gap with no recorded explanation and no attempt to corroborate it, because the file then shows a period nobody enquired about.

What an assessor is generally looking for is evidence that the gap was identified, asked about, and that the account given was reasonable and where possible supported. That is a record of a process, and it is entirely achievable — it simply has to happen at the time rather than afterwards.

Common mistakes

  • Identifying a gap without recording the explanation given
  • Accepting an explanation with no attempt at corroboration
  • No record of who asked, when, and what was said
  • Treating short gaps as too minor to document
  • Inconsistent thresholds for what counts as a gap worth exploring
  • Reconstructing explanations later, when the file is audited

What separates a well-handled gap

Evidence of enquiry. A file showing that a gap was identified, asked about, explained, and where possible corroborated, is a record of a process working — regardless of what the gap turned out to be. A file with an unexplained gap shows only that nobody looked.

What makes this straightforward is doing it at the time, as part of screening, rather than discovering the gaps later when the file is being audited and the candidate has been employed for two years.

One practical test: find a gap and read what was recorded

Look for a file with a period unaccounted for and see what the record says about it: was it identified, was it asked about, what was the explanation, and was anything done to corroborate it.

A gap is ordinary and not disqualifying. A gap with no recorded enquiry shows only that nobody looked, and it is far easier to establish at screening than two years later when the candidate is an employee and the conversation is awkward.

  • Record the explanation given, not just that a gap exists
  • Note who asked, when, and what was said
  • Attempt corroboration where it is possible
  • Apply a consistent threshold for what counts as a gap
  • Do it at screening rather than reconstructing it during an audit
Key takeaways
  • A gap in employment history is ordinary and not, by itself, a finding
  • The file needs to show the gap was asked about, not just that it exists
  • An unrecorded conversation is indistinguishable from no conversation at all, from the file's perspective
  • Record the period, the explanation, any corroboration and who reviewed it
  • Escalate accounts that do not add up to a second, more senior reviewer rather than deciding alone

About this article

The SecureOptix team

Written by people who work daily with security contractors on SIA licensing, screening and the records that hold up under an inspection.

Published
14 May 2026
Last revised
27 September 2026

How this is researched, dated and corrected is set out in our editorial standards. If something here is wrong or out of date, email hello@secureoptix.co.uk — corrections to a regulated detail are made as soon as we can confirm them, and the revision date above moves when they are.