PAS 41201:2026 in effect since 30 June 2026
The customs intermediary standard is here. Find out where you stand.
PAS 41201 sets 61 requirements for how intermediaries prepare and submit customs declarations: internal audit, due diligence, training, systems and transparency. Our free gap assessment walks you through every one, clause by clause, and gives you a report you can put in front of your board.
What PAS 41201 is.
PAS 41201:2026 is the Voluntary Standard for Customs Intermediaries: sponsored by HMRC, published by BSI on 3 June 2026, in effect from 30 June 2026. It applies at the level of the organisation, not the individual, and covers customs agents, freight forwarders, express operators, warehouse operators and hauliers who prepare or submit declarations on behalf of others. Around 78% of all UK customs declarations are filed by an intermediary, so most of the sector is in scope.
The standard is voluntary, but it is written for independent third-party certification by UKAS-accredited bodies, and UKAS sat on the steering group. Clauses 4 to 9 contain 61 normative requirements covering good practice, due diligence, crisis response, training for employees submitting declarations, systems, process and data, and transparency with the businesses you represent.
This is not a one-off project.
Many of the 61 requirements are recurring obligations with defined frequencies and six-year retention periods. Conformity means running a cycle, not filling in a form once. The main recurring commitments:
Quarterly declaration audits
Clause 4.2 asks for two things: an annual audit of your systems and processes, and a quarterly quality control audit of submitted declarations on a minimum 5% sample, capped at 25,000 declarations. Document the results, tell affected clients within a month, and correct your own errors within 90 days at no charge to the principal.
Annual cycles
An annual audit of your systems and processes, an annual review of due diligence procedures, annual employee reviews with CPD evidence, annual suspicious-activity training, and annual SOP reviews with version control.
Six-year records
Appointment evidence, due diligence records, MRN confirmations, complaints and client data files all carry six-year retention requirements, most running from the date of the last declaration.
Those are the recurring ones. The full clause-by-clause table sets out all six clauses, what each asks for, and which parts CAT360 has anything to do with.
The gap assessment: 61 requirements, one private link.
Start with your company name and email
No account, no password. You get a private link to your assessment; we email it to you so you can come back to it any time, from any device.
Work through the requirements, clause by clause
Each requirement comes with plain-English guidance on what good evidence looks like, the recurrence frequency, and the retention period. Mark each one met, in progress, not started or not applicable. Everything saves as you go.
Get your gap report
A clause-by-clause readiness summary with your gap list in priority order, printable and ready for your board or your certification planning.
The hardest requirement is clause 4.2. We built the tool for it.
For a mid-size intermediary, a quarterly 5% sample is thousands of declarations checked against supporting documentation, four times a year, documented. Done manually, that is weeks of spreadsheet work per quarter. CAT360 ingests your own CDS reports and runs that review across your whole book, every declaration rather than a sample, and produces the documented record the standard asks for.
The standard clause by clause.
Clauses 4 to 9 are where the requirements sit. This is what each one asks for, and whether CAT360 has anything to do with it. Most of the standard is about people and process, so the honest answer in the third column is usually no.
| Clause | What it asks for | CAT360's part |
|---|---|---|
| 4. Good practice | ||
| 4.1 | General. Promote transparency and a positive working relationship with the principal. | Indirectly. A findings report you can share is one way to evidence it. |
| 4.2 | Auditing. An annual audit of systems and processes, plus a quarterly quality control audit of submitted declarations on a minimum 5% sample, capped at 25,000. | Yes, directly. This is the requirement the product was built around: sampling, the findings, and a dated record of both. |
| 4.3 | Principal appointment and instruction. Obtain and keep appointment instructions, follow them unless fraud is suspected, and retain the records for six years from the last declaration. | No. That is a contracts and records job. |
| 4.4 | Communication. Be clear about service hours and contact routes, and give evidence that a declaration was submitted and its status. | No. |
| 5. Due diligence | ||
| 5.1 | Principals. Check that a customer is established and trading as claimed, partly to prevent EORI hijacking, and keep the records for internal audit. | No. Onboarding checks sit outside post-clearance review. |
| 5.2 | Contact by a representative of the principal. Verify anyone unknown who claims to act for an established principal. | No. |
| 5.3 | Documents accompanying the declaration. Check the information in them, which protects the principal from paying the wrong duty. | Partly. We cannot see your document pack, but we can show where the declared outcome does not match the tariff that applied. |
| 6. Crisis response | ||
| 6.1, 6.2 | Crisis response and resilience planning, so you keep operating through planned and unplanned outages. | No. This one is about your own continuity planning. |
| 7. Training for employees submitting customs declarations | ||
| 7.1 | Induction training within a new employee's first three months, covering good practice, due diligence and spotting suspicious behaviour. | No. |
| 7.2 | Continuing professional development for staff who submit declarations or run due diligence. No minimum hours are set. | No. Worth talking to a training body. |
| 7.3 | Annual performance reviews recording knowledge updates and CPD, plus annual training on identifying suspicious activity. | No. |
| 7.4 | Relevance. Training must cover changes to customs rules, and should be informed by your internal audit output and customer feedback. | Partly. The audit output that should feed your training is exactly what a quarterly review produces. |
| 7.5 | HMRC help and support. Give staff a directory of where to get assistance. | No. |
| 7.6 | Customs knowledge. Provide training and case studies covering the WCO Harmonized System. | No, though real misclassifications from your own filings make better case studies than invented ones. |
| 8. Systems, process and data | ||
| 8.1 | Standard operating procedures, written down, specific to what you do, and reviewed regularly. | No, but your review routine is one of the procedures to write down. |
| 8.2 | Records of staff qualifications, experience and training, so knowledge gaps can be identified. | No. |
| 8.3 | Procedures for compiling and retaining the documents that accompany a declaration. | No. |
| 8.4 | A system for recording complaints and their resolution, retained for six years. | No. |
| 8.5 | Knowledge of declaration requirements and data elements: documents, procedures and practices that inform staff about requirements, evidence checking and identifying risk. | Partly. Findings cited to the legal source and the declaration line are a practical way to keep that knowledge current. |
| 8.6 | Import VAT. A written agreement with the principal covering how import VAT is handled, including postponed VAT accounting. | No, though we do report on VAT paid against what applied. |
| 8.7 | Principal data. Procedures to record and keep current the principal's details and the declarations submitted for them. | Partly. The declaration record itself is what we hold and organise. |
| 9. Transparency | ||
| 9.1 | Service offering. Describe your declaration services and any post-relationship audit support clearly, disclose where AI is used in completing declarations, and document how complaints are resolved. | Mostly no. Note the AI disclosure point applies to declaration completion, and CAT360 sits after clearance, outside that. |
| 9.2 | Fees and pricing. Make your fee structure available to principals and be clear about intended changes. | No. |
Clause numbers and summaries above are paraphrased from GOV.UK's explanatory page for PAS 41201:2026. They are a summary for orientation, not the requirements themselves. The normative text is published by BSI and remains the authoritative source. Where a sub-clause carries further numbered requirements, the count of individual obligations is higher than the rows shown here.
Read this table honestly
Six clauses, and CAT360 is a direct answer to one of them. That is not a weakness in the product, it is what the standard is: mostly a specification for how an organisation runs, trains and communicates. Any vendor telling you their software delivers PAS 41201 conformity is overselling. What software can do is the part that needs evidence from data, which is clause 4.2, and that happens to be the requirement most firms find hardest to produce.
Questions
Is PAS 41201 mandatory?
No, it is voluntary. But it is HMRC-sponsored, written for UKAS-accredited certification, and intermediaries are already being asked about it by clients. The practical question is not whether you must conform, but whether you can afford to be the firm that cannot show it.
Who is in scope?
Any organisation that prepares or submits customs declarations on behalf of another business: customs agents, freight forwarders, express operators, customs warehouse operators and hauliers. The requirements apply to the organisation, not to individual employees.
Can I get certified today?
Not yet. Certification bodies still need UKAS accreditation, so the sector is in the preparation phase. That is exactly when a gap assessment is most useful: you find out what to fix while there is still time to fix it.
Is the gap assessment really free?
Yes. No account, no card, no obligation. We built it because we work with intermediaries every day and they kept asking the same question: where do we stand?
Where do I get the standard itself?
From BSI. The requirement statements in our assessment are paraphrased for self-assessment and are not a substitute for the standard, which remains the authoritative text.
Who built this?
Barbourne Brook, the customs consultancy behind CAT360. We review customs declarations at scale for a living; the assessment encodes how we run readiness engagements.
The standard is in effect. Your first quarterly review is due.
Take the free gap assessment now. 61 requirements, clause by clause, with a report you can hand to your board. Most firms finish a first pass in under an hour.