A1 Forms for Music Touring
If you're touring in Europe as a UK-based musician or crew member, there's every chance you will be asked to provide an A1 form.
This guide is written from my experience as a tour manager working with UK and international artists in Europe, and is not intended as legal advice. It just details how I've seen things work in practice, and may be subject to change.
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What Is an A1 Form?
An A1 form (more precisely, an A1 certificate) is a document that proves you're paying National Insurance in the UK, so that you don't have to pay the equivalent social security contributions in the country you're working in. If you're a UK-based musician or crew member doing shows in Europe, you may need one.
Apply well in advance - months in advance if possible - because HMRC can take an extraordinarily long time to process them.
Before Brexit, this was all handled fairly seamlessly within the EU's own framework. Post-Brexit, the UK has its own bilateral social security arrangements with the EU and EEA countries, but the A1 certificate still exists and still works in essentially the same way. It hasn't gone away; if anything, it's become more of a friction point for touring UK acts.
The certificate doesn't cost anything to obtain, and it doesn't affect your tax situation - it's purely about national insutance contributions. But without it, the country you're performing in could, in theory, require you to contribute to their social security system instead. More practically, many European promoters and venues will withhold a portion of your fee until you can produce one.
When Might You Be Asked for One?
Honestly, requirements vary hugely from country to country, and enforcement is inconsistent. Some countries are relaxed about it; others are not.
France and Italy are generally the strictest, and in my experience are the most likely places you'll encounter a hard requirement from the promoter's side before they release payment. Belgium, Austria, Switzerland and Luxembourg are also known to request them, but In countries like Germany and the Netherlands, you're less likely to be chased for it on a club-level show (but don't take that for granted). The form is technically required for all EU countries, as well as Iceland, Liechtenstein, Norway, Switzerland and Gibraltar. It's worth noting that it covers the EEA as a whole, not just the EU - so Norway and Iceland apply even though they're not EU members.
One important thing: this is not an immigration document. No border official can refuse you entry for not having one, and it won't appear on any visa or work permit application (although if you do need a work permit in a given country, you may need the physical certificate as part of that application). It's a tax administration document ONLY.
Who Needs One?
Everyone on the touring party who is being paid for their work in Europe technically needs their own A1 certificate — that's both musicians and crew. Each certificate is issued per person, per trip, and per country (or set of countries if you apply for coverage across multiple).
If your whole touring party is employed by the same UK company (say, a management or production company that employs everyone on payroll), the employer applies for certificates on behalf of each employee. If you're self-employed — which is the reality for most touring musicians and freelance crew — you apply for your own.
The Different Forms
This is where it gets a bit confusing, because the A1 certificate is an output you're trying to get, but the form you fill in to get it depends on your employment status.
CA3822 — This is the form for employees being sent to work abroad by a UK employer. If your management or touring company employs you on PAYE, this is the one your employer completes on your behalf.
CA3837 — This is the form for self-employed individuals. If you're a freelancer or sole trader — which covers the majority of self-employed musicians and crew working in Europe — this is what you need.
CA8421 — This one is for people working in two or more countries simultaneously or in rotation. If you're doing a European tour that hits multiple countries, this can in theory cover you for all of them under one application, which is significantly more efficient than applying per-country. Some accountants and agents have found this form processes faster than CA3837, which is worth bearing in mind.
CA3821 + CA3822 — If you're a director of your own limited company (which many touring professionals are), you'll need to complete CA3821 first to establish eligibility, then CA3822. It's an extra step that catches people out.
All of these are available on the HMRC website.
How to Apply
The good news is that HMRC has moved the application process online and you can now submit digitally via the GOV.UK website. You'll need a Government Gateway account to do this, and if you don't have one, you can create one during the application process (though it adds time).
For self-employed applicants using CA3837, you'll need to have the following to hand:
Your National Insurance number
Your UTR (Unique Taxpayer Reference), if you're registered for Self Assessment
The dates you'll be working in Europe and the countries involved
Details of your self-employment in the UK — essentially evidence that your business is primarily UK-based
For employed applicants using CA3822, your employer will need their PAYE reference number plus the same information about the assignment.
Once submitted, you'll receive a confirmation with an application reference. The actual certificate arrives separately — by post, as a physical document — and this is where the frustration begins.
The Processing Time Problem
HMRC's processing times for A1 certificates have been, and continue to be, a pain in the ass. There have in fact been Parliamentary debates about it.
Official estimates suggest online applications take 10–15 days, and that is sometimes true. In reality, it's common for applications to take six weeks, and there are well-documented cases of musicians applying months in advance and still not receiving their certificate by the time the show has come and gone.
HMRC has committed to improvements — more staff, a new digital application form, automation — and there has been some progress. But apply early.
If your certificate hasn't arrived by the time you travel, you can present proof of your submission (your confirmation reference) as evidence that the application has been made. Some promoters will accept this; others, particularly in France and Italy, may still withhold payment until the physical document arrives.
What Happens Without One?
In a worst-case scenario, the promoter in the country you're playing deducts the equivalent of their local social security contributions from your fee before paying you. Depending on the country, this can be a meaningful chunk of money. The A1 certificate is what prevents that deduction from being applied.
In the more common scenario on smaller tours, a promoter may just hold back part of the fee until you can supply the certificate after the fact.
The A1 form is one of those things that most smaller touring acts get away without ever thinking about — until they don't. Getting into the habit of applying for them well in advance is worth it.
A Note on Who This Applies To
This guide is written for UK-based artists and crew touring in Europe. If you're an EU-based act touring in the EU, the process is handled differently — typically through your own country's social security authority — and EU freedom of movement rules may mean the mechanics are simpler depending on your specific situation.
If you're a US, Australian or other non-UK, non-EU act touring in Europe, A1 forms won't apply in the same way, but you should check whether your home country has a bilateral social security treaty with the countries you're visiting, as equivalent certificates may exist.