Most couples planning a destination wedding spend months obsessing over the venue, the flowers, the food. The paperwork tends to get left until last — which is usually fine, until it isn’t.
A certificate of no impediment is one of those things nobody knows exists until someone tells them they need one. Often that someone is a wedding planner. Sometimes it’s the local authority in the country you’re getting married in. Occasionally it’s a frantic Google search at midnight, six weeks before the wedding.
I’ve seen all three.
If you’re a UK national planning to marry abroad, there’s a good chance you’ll need one. And if one of you has been married before, there’s additional paperwork on top of that. None of it is complicated once you understand what’s involved, but the process has enough moving parts that leaving it late creates real problems.
So let’s go through it properly.
What Is a Certificate of No Impediment, and Why Do You Need One to Marry Abroad?
A certificate of no impediment — usually just called a CNI — is a document issued by the UK General Register Office that confirms you’re legally free to marry. It’s the UK government’s way of telling a foreign authority: this person isn’t already married, there’s no legal barrier to this wedding going ahead.
For a civil ceremony abroad, the local authority responsible for registering marriages will typically require a CNI from each UK national before they’ll approve the ceremony. It’s not optional, and they won’t accept a substitute.
Here’s where it catches people out. A CNI issued in the UK isn’t automatically recognised abroad. Before it can be used in another country, it needs to go through a process called legalisation — specifically, it needs something called an apostille.
An apostille is an official certificate issued by the UK Foreign, Commonwealth & Development Office (FCDO) that authenticates your document and makes it legally valid overseas. Most countries are part of the Hague Convention, which means a UK apostille is the accepted way of verifying that your CNI is genuine. For countries outside the Hague Convention, the process is slightly different — but the principle is the same. Without it, your CNI is just a piece of paper as far as the foreign authorities are concerned.
If one of you has been married before, there’s an extra step. The local authority will also want to see proof that the previous marriage has legally ended — which means your decree absolute needs to go through exactly the same legalisation process. Same apostille requirement, same steps, just one more document in the pile. This is the part that surprises people most, and it’s worth knowing about early because it adds time.
A Real Example: An Amalfi Coast Wedding, a Divorcee, and a Deadline Nobody Saw Coming
Last summer, a couple came to us planning a civil ceremony on the Amalfi Coast. They’d been organised about most things — venue booked, flights sorted, guests confirmed. The paperwork was the one thing that had been left to their wedding planner to advise on.
It hadn’t been advised on.
With roughly two weeks to go, the wedding planner flagged that the Italian comune was requiring both partners to submit a legalised certificate of no impediment before the ceremony could be approved. One of the partners had also been married before, which meant a decree absolute needed to go through the same process. And because they were both UK nationals, everything had to be legalised by the FCDO before it would be recognised in Italy.
They found us, explained the situation, and were refreshingly straightforward about it: they didn’t know what any of this meant, they had a wedding in two weeks, and they needed someone to tell them whether it was still possible.
It was. But only just.
Here’s what the process actually involved. First, both CNIs needed to be certified by a solicitor — that’s the foundation everything else sits on. Then each document, including the decree absolute, needed an apostille from the FCDO. Then a statutory declaration — signed before a solicitor in the UK — also had to be prepared and legalised as part of the requirements. Four documents in total, each needing to go through the correct steps, in the correct order, with no room for mistakes.
We coordinated the whole thing. Solicitor certification, FCDO apostilles, the statutory declaration — all handled within the timeframe they had. The comune accepted everything without issue, and the wedding went ahead as planned.
The Amalfi Coast, as it turns out, is a perfectly reasonable place to get married. The paperwork admin that precedes it is slightly less romantic, but entirely manageable if you know what you’re doing.
Real talk: their wedding planner should have flagged this months earlier. Most good ones do. But if yours hasn’t, or if you’re handling the admin yourself, don’t assume the documents you have are sufficient. They almost certainly need legalising before they’ll be accepted abroad.
If You’re Planning to Marry Abroad, Here’s What to Sort Before It Becomes Urgent
The mistake most couples make is assuming that someone else — their wedding planner, the venue, the local authority — will tell them exactly what they need and when. Sometimes that happens. Often it doesn’t. And by the time you find out your documents aren’t in order, you’re already working against a deadline that didn’t need to exist.
So here’s what’s worth knowing now.
Find out what the local authority requires before you do anything else. Requirements vary by country, and sometimes by region within the same country. A civil ceremony in one part of Europe may have different paperwork requirements to another. Contact the local authority directly, or ask your wedding planner to confirm in writing exactly what documents they need and in what format. Don’t assume.
Get your CNI sorted earlier than you think you need to. The CNI itself takes time to obtain from the General Register Office — and that’s before legalisation begins. Add in solicitor certification and an FCDO apostille, and you’re looking at a process that needs weeks, not days. Starting late turns something manageable into something stressful.
If you’ve been married before, factor in your decree absolute from the start. This is the one that blindsides people. Your decree absolute needs to go through exactly the same legalisation process as your CNI. It’s not complicated, but it’s an additional document with additional steps, and it needs to be built into your timeline from the beginning — not discovered two weeks before the ceremony.
Don’t overlook the statutory declaration. Some countries and local authorities will also require a statutory declaration — a formal statement signed before a solicitor or notary in the UK confirming your personal details and marital status. If it’s required, it needs to be legalised too. Again, worth confirming early.
Check whether your destination is a Hague Convention country. Most of Europe is, which means a standard UK apostille is the accepted form of legalisation. If you’re marrying outside the Hague Convention — in certain parts of the Middle East, Asia, or Africa — the process is different, though not necessarily more difficult. We handle both, but the steps involved vary, so it’s worth clarifying which applies to you.
Real talk: if you’re already close to your date and you haven’t started this yet, don’t assume it’s too late. We handle urgent cases regularly. Get in touch, tell us your deadline and what documents you have, and we’ll tell you honestly what’s achievable.
Frequently Asked Questions
A certificate of no impediment is a document issued by the UK General Register Office that confirms you’re legally free to marry. If you’re a UK national planning a civil ceremony abroad, the local authority in the country you’re marrying in will typically require one from each partner before they’ll approve the ceremony. It’s one of the most commonly overlooked documents in the destination wedding planning process.
Yes. A CNI issued in the UK isn’t automatically recognised overseas. Before it can be accepted by a foreign authority, it needs an apostille — an official certificate issued by the UK Foreign, Commonwealth & Development Office (FCDO) that makes your document legally valid abroad. Without it, the local authority won’t accept it regardless of how official it looks.
The full process — obtaining the CNI from the General Register Office, having it certified by a solicitor, and getting the apostille from the FCDO — typically takes a few weeks when everything runs smoothly. If you’re working against a tight deadline, get in touch as early as possible so we can advise on what’s achievable in your timeframe.
Yes. If one or both partners has been previously married, the local authority will typically require proof that the previous marriage has legally ended. That means your decree absolute needs to go through the same legalisation process as your CNI — solicitor certification and an FCDO apostille. It’s a straightforward process, but it adds time, so it needs to be factored in from the start.
A statutory declaration is a formal written statement signed before a solicitor or notary in the UK, confirming your personal details and marital status. Some countries and local authorities require one as part of the marriage documentation process. If it’s required, it will also need to be legalised before it can be used abroad. Your wedding planner or the local authority in your destination country should be able to confirm whether it’s needed.
Most European countries are part of the Hague Convention, which means a UK apostille is the accepted form of legalisation. If you’re marrying in a country outside the Hague Convention — in parts of the Middle East, Asia, or Africa — the legalisation process is different, though we handle both. Get in touch and we’ll confirm exactly what’s required for your specific destination.
The cost depends on the number of documents involved and whether any additional steps — such as a decree absolute or statutory declaration — are required. Take a look at our pricing page for an upfront idea of costs, or get in touch for a clear breakdown based on your situation.
How We Can Help
At Apostille Solutions, this is all we do. We handle the full legalisation process for UK nationals marrying abroad — solicitor certification, FCDO apostille, statutory declarations, and decree absolutes. Whether you’re getting married in Europe or further afield, and whether your timeline is comfortable or not, we can advise you on exactly what’s needed and get it done.
If you’re not sure what your destination requires, that’s a fine place to start. A quick conversation early in the planning process is worth a lot more than a panicked one two weeks before the ceremony.
Get in touch and tell us where you’re getting married, what documents you have, and when you need everything by. You can also take a look at our pricing page if you’d like an idea of costs upfront.
