HMRC tests your procedures on site, so the team on the floor matters as much as the paperwork.
Key takeaway
To get AEO accreditation in the UK, you apply to HMRC online for Authorised Economic Operator status: AEOC, AEOS or both. You need a Government Gateway login and a GB or XI EORI number. HMRC checks your compliance record, customs records and finances, plus your customs competence (AEOC) or your security (AEOS), visits your premises and has 120 days from receiving your application to decide.
Around 1,200 UK businesses hold AEO status, and two thirds of them are small and medium sized. In our experience, the applications that go smoothly have one thing in common: preparation. The business knows what HMRC will check, has the evidence ready, and can show that its procedures are actually followed on the warehouse floor.
This guide walks through the whole process, from checking you qualify to keeping your status once HMRC approves it.
1. What is AEO accreditation?
AEO stands for Authorised Economic Operator. It is HMRC's trusted trader status for businesses in the international supply chain, and it is recognised by customs authorities in partner countries around the world. There are two types, and you can apply for one or both:
AEOC (customs simplification) covers your customs compliance, records and finances. In Great Britain it brings a guarantee waiver up to your deferment account level, fewer checks and faster HMRC authorisations.
AEOS (security and safety) covers the security of your premises and supply chain. It brings priority treatment and recognition by 12 partner customs authorities, including the EU, the US and China.
In practice, businesses apply for AEOC on its own or for both together, which is often called full AEO, or AEOF. If you are still deciding whether it is right for you, our guide on whether AEO accreditation is worth it sets out the benefits and when it pays back.
2. Who can apply for AEO?
Any business that meets HMRC's basic conditions can apply, whatever its size. You need to:
Be a legal entity established in Great Britain or Northern Ireland
Be actively involved in customs operations and international trade
Have an EORI number starting with GB or XI
Using an agent or freight forwarder for your declarations does not stop you applying. In a group, each legal entity applies separately, and HMRC cannot grant AEO to a single site or branch. A business set up less than 3 years ago can still apply, and HMRC assesses it on the records it has.
3. AEO requirements: what HMRC checks
HMRC assesses every applicant against a set of criteria, looking back over the last 3 years. Three apply to everyone. The fourth depends on which status you want.
| Criterion | AEOC | AEOS |
|---|---|---|
| Customs and tax compliance | Yes | Yes |
| Customs record keeping | Yes | Yes |
| Financial solvency | Yes | Yes |
| Practical competence in customs | Yes | No |
| Security and safety | No | Yes |
Compliance record
HMRC reviews your customs and tax history for serious or repeated breaches. A past error does not rule you out. What matters is that it was corrected and reported, ideally through a voluntary disclosure, and that you changed the process that caused it.
Record keeping
HMRC wants a clear audit trail from each declaration back to the commercial documents, controlled access to your records and sensible IT security. Expect officers to test this at the visit by following an entry back through your records.
Financial solvency
HMRC looks at your accounts and management information for the last 3 years, along with projections, and expects current net assets to be positive unless there are special circumstances.
Practical competence (AEOC)
You need someone in charge of customs matters with at least 3 years of practical customs experience. That person should be based in the UK and can be part time in a small business. If your agent or freight forwarder holds AEOC, that meets the criterion for you, although the responsibility for accurate declarations stays with your business.
Security and safety (AEOS)
HMRC looks for a security risk assessment, secure boundaries and access control, safe handling of cargo, and pre employment checks on staff covering at least the last 3 years.
Want to see where you stand before you apply? Our free AEO readiness checklist turns HMRC's criteria into 24 plain English checks.
Get the free checklist4. The AEO application process, step by step
- Choose AEOC, AEOS or bothStart from what you want AEO to do for you. For cash flow, fewer checks and faster authorisations such as Inward Processing or a customs warehouse, AEOC is usually the place to start. If your buyers abroad want proof of a secure supply chain, you need AEOS as well.
- Check yourself against the criteriaRun a gap analysis before you open the form. HMRC publishes the information it will ask for (forms C117 and C118 on GOV.UK). You will normally need documented procedures, recent accounts and management accounts, an organisation chart, details of the person responsible for customs and evidence of your customs activity over the last 3 years.
- Apply onlineA responsible person, such as a director, applies using HMRC's online form, signed in with a Government Gateway user ID. You have 28 days from starting the form to complete it, and once complete it must be submitted within 24 hours. HMRC emails you to confirm it has your application.
- HMRC accepts your applicationHMRC has up to 30 days to check your application and accept it. You then receive a notice of acceptance and HMRC calls to arrange the visit. Submitting confirms you are ready to be visited, so don't apply until your procedures are in place.
- The HMRC visitOfficers come to your premises to check your documentation and test your systems. They interview the people named in your application and the staff who do the work, and compare what they see with what you wrote.
- HMRC's decisionHMRC has 120 days from receiving your application to decide. If you are approved, you can start using the benefits and the AEO logo. If HMRC finds you don't meet the criteria, it may advise you to withdraw, so you can fix the gaps and apply again later.
The questions at the visit are practical. These came up at a recent HMRC reassessment we supported:
How are discrepancies in customs declarations identified, documented and corrected internally?
What vetting applies to subcontractors and temporary staff entering the facility?
How does the business protect cargo during transit and storage?
If someone on the floor describes a different process from the one in your procedures, that is what HMRC will remember. Walking the team through the visit beforehand makes a real difference.
5. How long does AEO take?
Most of the timeline belongs to HMRC. It has up to 30 days to accept your application and 120 days from receiving it to make a decision, including the visit. For AEO, HMRC can extend that by up to 60 days, and any time you take to answer its questions is added on.
The part you control is preparation and how quickly you respond. When a client hands their application to us, we usually submit it within 10 days of the first call, and we answer HMRC's follow up requests straight away. From then on, the timing depends on HMRC's own workload, and never on your side holding it up.
| Stage | Typical time |
|---|---|
| Preparation and submission with Readyset | Usually within 10 days of the first call |
| HMRC accepts the application | Up to 30 days |
| HMRC visit and decision | Within 120 days of HMRC receiving the application, extendable by up to 60 days |
6. Why AEO applications stall
Procedures written for the application but not followed. HMRC asks the team how things work. When the answers differ from the document, the application stalls.
No clear audit trail. Every declaration should trace back to invoices, contracts and payments.
Past errors left uncorrected. A voluntary disclosure and evidence of what changed carry far more weight than an error HMRC finds itself.
Nobody clearly responsible for customs. HMRC expects a named person with 3 years of experience, or an agent that holds AEOC.
Security gaps on site (AEOS). Access control, visitor records and staff checks need to be in place before the visit.
7. Keeping your AEO status after approval
AEO stays valid for as long as you keep meeting the standards. HMRC reviews AEO holders periodically, with no fixed cycle, and a big change in your business can trigger a reassessment. To stay on the right side of it:
Tell HMRC about changes that could affect your status, such as new premises, new owners or a new person responsible for customs, using form C122. HMRC's AEO handbook asks for this as soon as you know, and within 14 calendar days at the latest.
Keep your procedures, training and records up to date as the business grows
Review your own compliance regularly and correct errors quickly
If HMRC revokes your status because you no longer meet the standards, you cannot reapply for 3 years. Keeping the procedures alive matters as much as getting approved.
Many AEO holders hand this ongoing work to us under Monthly Customs Management, for one fixed monthly fee.
8. Should you apply on your own or with a consultant?
You can apply for AEO without a consultant. The criteria are published and the form is online. What takes the time is the preparation: working out what HMRC expects, writing procedures that match how your business really works, and getting the team ready for the visit.
That is the part Readyset's AEO consultants take on: the gap analysis, procedures written with you, the application prepared and submitted, every HMRC question handled, and full support at the visit. Every AEO application we have submitted has been approved by HMRC first time.
Our recommendation
If you import regularly, plan to use Inward Processing or a customs warehouse, or your buyers ask for proof of a secure supply chain, start with AEOC and check yourself against the criteria now. Most of the work is preparation, and that is what decides how smoothly the HMRC visit goes.
Thinking about applying for AEO? Book a free call and we'll tell you which AEO fits your business and what needs doing before you apply.
Book a free consultationFrequently asked questions
How long does it take to get AEO status?
HMRC has up to 30 days to accept an application and 120 days from receiving it to decide, which it can extend by up to 60 days. With Readyset, applications are usually submitted within 10 days of the first call.
Is AEO reassessed every 3 years?
No. There is no fixed cycle. HMRC reviews AEO holders periodically and may reassess you after a major change in your business, new information or a change in the law.
What happens if HMRC finds an issue at the visit?
It doesn't usually end the application. HMRC normally asks for extra evidence, or for something to be put right in the business. With our clients, we agree with the officer on the day exactly what HMRC needs, put it right with your team, and send HMRC the documents that show it has been done promptly after the visit.
Can we reapply if HMRC refuses our application?
Yes. If HMRC finds you don't meet the criteria, it may advise you to withdraw, and you can apply again once the gaps are fixed. The 3 year bar only applies when HMRC revokes an existing status because the standards are no longer met.
Does my freight forwarder's AEO cover my business?
No. AEO is granted to each legal entity, so your business needs its own. If your forwarder or agent holds AEOC, though, that can meet the practical competence criterion for your AEOC application.
Where is UK AEO status recognised?
UK AEOS is recognised under mutual recognition arrangements with Australia, Canada, the EU, Japan, New Zealand, Singapore, South Africa, South Korea, Switzerland, China, the United States and Turkey.
Can a company under 3 years old get AEO?
Yes. HMRC assesses a business established for less than 3 years on the records and information it has. Clear procedures and experienced people matter even more when there is less history to show.
Sources (checked October 2026): GOV.UK, Authorised Economic Operator certification · GOV.UK, Apply for AEO status · GOV.UK, Authorisation considerations and processes · HMRC, Customs Technical Handbook: AEO
