Do you need an ATAS certificate?
ATAS costs nothing and is easy to get. It is also a six-week wait that sits in front of your visa application, and people routinely discover they need one far too late.
Figures assessed against official UK government sources on 22 September 2026.
The short answer
ATAS is the Academic Technology Approval Scheme. It is a clearance certificate required for certain sensitive technology subjects at master's and PhD level.
Your CAS tells you whether you need one. It is free, and it takes at least 30 working days.
Free
There is no fee for an ATAS application.
6 weeks or more
At least 30 working days to process, and longer between April and August.
This is the one that quietly wrecks timelines
Six weeks sits before your visa application, not alongside it. Add the three weeks for a visa decision and you are looking at more than two months between needing ATAS and having a visa, assuming nothing slips.
Worse, the scheme's busiest period runs April to August, which is precisely when September-intake applicants all arrive at once. If ATAS applies to you, it should be the first thing you start, not the last.
Who needs one
- Postgraduate taught and research courses at master's and PhD level in covered subjects
- Undergraduate courses with an integrated master's year may also need it
- Postgraduate diplomas and PGCEs are excluded
The subjects covered are technology areas the UK treats as sensitive. Rather than guessing from a course title, read what your CAS says, because your university has already made that assessment.
Nationality, and why Nigerian applicants are not exempt
Around 31 nationalities are exempt from ATAS entirely, including Australia, Canada, Japan, South Korea and the USA. Nigeria is not on that list.
Dual nationals can use an exempt country's passport if they hold a valid one. Otherwise, if your course is covered, the requirement applies.
This is the second place where the exemption lists matter for Nigerian applicants. The other is financial evidence, covered in the proof of funds guide.
How long it lasts
The certificate is valid for 6 months from its date of issue for use as part of a visa application. Once you are studying, it remains valid for the duration of your course or research, provided you hold a valid UK visa.
So it has the same shape of problem as your CAS: getting it very early and then waiting can expire it. Line it up against the other deadlines in the timeline guide.
It is free, and that is worth saying plainly
There is no fee. If an agent offers to handle your ATAS application for a charge, understand that what you are paying for is form-filling, not access.
Common questions
- How do I know if I need an ATAS certificate?
- Your CAS states it. Your university assesses whether your specific course and nationality trigger the requirement and records the answer on the CAS, so check there before assuming either way.
- Do Nigerian students need ATAS?
- Nigeria is not on the exemption list, so if your course is one of the sensitive technology subjects covered by the scheme, yes. Around 31 nationalities are exempt, including Australia, Canada, Japan, South Korea and the USA. Nigeria is not among them.
- How much does ATAS cost?
- Nothing. The application is free. Anyone charging you for an ATAS application is charging you for something the government provides at no cost.
- How long does ATAS take?
- At least 30 working days, which is about six weeks, and longer in some cases. Volumes peak between April and August, which is exactly when most September-intake applicants need one.
- How long is an ATAS certificate valid?
- Six months from its date of issue for use in a visa application. Once you are on the course it stays valid for the duration of your course or research, as long as you hold a valid UK visa.
Does your own plan actually hold up?
Pathminder checks your dates, your budget and your documents against the rules on this page, and tells you what is missing before it costs you an application fee.
Check your planFree. No card required.
Where these figures come from
Every number on this page is taken from official UK government guidance, not from agents or forums. Rules change, so check the source before you apply.