Do I need Security Clearance to apply for an IT job?

The 2014 vetting code should be mandatory, not advisory, says the UK’s self-employed body. Until then, here’s how tech job adverts demand SC, who to speak to avoid being ‘gated’ at the application stage, and how to improve your odds of getting through the door on sensitive roles.

To answer the question every tech job board user seems to ask: in principle, no, you shouldn’t need an active security clearance (SC) to apply for a role that requires SC. You also shouldn’t be screened out of a contract IT role because you’ve never held a security clearance before.

Vetting is meant to follow a job offer, not screen candidates out at the application stage — in IT or any other UK sector. But tech job adverts asking for “Active SC clearance” before a person can apply are still common, so here’s what to do about it, and what we’re doing about it, writes Josh Toovey, head of policy and research at IPSE, the self-employed association.

What is security clearance and what are the levels?

Government and public sector work often involves sensitive systems, information and sites, so contractors doing that work go through the same checks as everyone else on the contract. 

The rules are fairly clear, but the way they are being applied can make it difficult for contractors without existing clearance to ‘get through the door.’

 BPSS (Baseline Personnel Security Standard) is the basic level of personnel security checking. There are three more, however.

Other than BPSS, what are the levels of security clearance, from lowest to highest?

• CTC (Counter Terrorist Check)

• SC (Security Check)

• DV (Developed Vetting) — for the most sensitive roles.

Editor’s Note: For the full seven-tier breakdown, including Accreditation Check and Enhanced SC, see Free-Work's Security clearance levels in the UK: explained.

What do security clearance checks cover?

 All would-be security-cleared technologists should be aware that checks can cover:

• Identity

• Employment history

• Finances

The higher levels of security clearance checks also involve interviews and references.  A security check can take ten weeks or more from start to completion, and DV considerably longer.

Why can’t I just get security clearance in advance?

You can’t obtain security clearance yourself and keep it ready for the next contract. Instead, it’s tied to the specific work and sponsored by whoever is employing or engaging you.

As the realities of clearance aren’t always made clear to job-seekers, IPSE and the Cabinet Office agreed a code of practice for contract roles requiring security clearance in 2014.

What are the Catch-22s of Security Clearance?

The core Catch-22 is needing the job to get the clearance, but needing the clearance to get the job. IPSE and the Cabinet Office wrote the 2014 code of practice specifically to try to head this off.

 We heard reports that contractors — targeting IT jobs and roles in other sectors — were being asked whether they already held clearance before being allowed to apply. This led to a second Catch-22: job candidates who’d never previously been given the opportunity to obtain clearance were being ruled out for not having SC.

What does the 2014 code of practice actually say?

The IPSE-Cabinet Office code says the vetting process should come after a job offer rather than being used to ‘gate’ candidates out at the application stage. 

In other words, an IT contractor shouldn’t be shut out of a role simply because they haven’t previously had an employer willing to sponsor their clearance.

Why do tech job adverts still ask for security clearance anyway?

Vetting costs time and money. And as IT recruiters on a deadline to produce a shortlist will readily tell you, there’s no guarantee a candidate will pass. 

A government department needing someone quickly in a sensitive technology post will naturally prefer someone already cleared and ‘clearance-ready.’

Not just in IT, but recruiters in all sectors face the same pressure, and putting forward a contractor who still needs to be vetted can make a role harder to fill.

The undesirable result: contractors with the right skills get excluded before they’ve had a chance to apply.

What do tech job adverts say when they want pre-cleared applicants?

Common phrases used by recruiters and organisations in tech job adverts to convey that they only want the security-cleared to apply include:

• “Must have active SC clearance”

• “Valid SC clearance required”

• “Seeking an SC cleared [insert IT role].”

What should security clearance job-hopefuls actually do?

• Look for roles where the department or agency is prepared to sponsor a new clearance, and speak to them about it before investing your time in a job application.

• Held security clearance before? Tell the IT recruiter or end-hirer — there may be a route to transfer or revalidate the clearance rather than starting again (depending on factors like how recently you held it)

• Being rejected at application stage for lacking security clearance? Cite the 2014 IPSE-Cabinet Office guidance — it doesn’t compel every employer to sponsor every applicant, but the code gives you something concrete to push back with.

• Doing regular government contract work? Build relationships with agencies and departments that routinely sponsor cleared roles. These parties are best-placed to understand how the vetting process works and what’s involved with sponsoring.

Should the 2014 code of practice be made mandatory?

Yes, IPSE is now calling for the 2014 security clearance code of practice to be a code no more: it should be made mandatory rather than advisory. If someone has the skills for a contract but has never previously been given the chance to obtain clearance, being rejected for that reason is wholly unacceptable. That goes for the UK technology jobs sector and beyond.

 As the UK’s self-employment body, we’ve raised the Catch-22s of security clearance for years as an issue that the public sector and government departments cannot be complacent about, given the sensitive nature of the roles that need filling.

The takeaway

We were disappointed to receive reports in June 2026 that the wrongful practice of requiring SC before allowing tech job candidates to apply continues. Further anecdotal evidence of ‘don’t apply unless you’re already cleared’ in Q3 2026 inspired this article. If you've been asked for a clearance or SC level you don’t have before you could even apply — or encountered problems during vetting — IPSE wants to hear about it: policyqueries@ipse.co.uk.