Brad is on the roll of solicitors of England & Wales but does not hold a practising certificate and does not provide legal advice.
Updated June 2026 · England & Wales
When a civil claim needs to reach a defendant who lives outside England and Wales, the claimant often has to tell the court why it is entitled to serve proceedings abroad. Form N510 is the notice used for that purpose in situations where the court's permission is not needed before service takes place.
It sits alongside the claim form and sets out the legal basis on which the claimant relies. The form is governed by the Civil Procedure Rules, specifically CPR 6.34, and it plays an important role in cross-border civil litigation within the UK and further afield.
This page explains what the form does, when it is required, which statements of truth apply to different scenarios, and what claimants should think about before filing. If you are weighing up whether your claim falls within the categories that permit service without permission, a short call with an experienced legal adviser may help.
What this document is
Form N510 is a short notice issued by HM Courts and Tribunals Service that a claimant completes and files whenever they intend to serve a claim form on a defendant located outside the jurisdiction of England and Wales, provided the court's permission is not required for that service. In other words, it is the claimant's written confirmation to the court that they have a legitimate legal ground to send proceedings abroad without first asking the judge to authorise it.
The form needs to be filed together with the claim form itself, and where the claim form goes out without particulars of claim attached, a Form N1D should also accompany it so the defendant understands the procedural position. The body of N510 contains several alternative statements of truth, and the claimant selects the one that matches their circumstances.
The statement sets out which statutory gateway or rule permits service out of the jurisdiction without permission, covering scenarios such as claims under the Civil Jurisdiction and Judgments Act 1982 where the defendant is domiciled elsewhere in the United Kingdom, or claims involving consumer and employment contracts with foreign defendants.
How to use this document
Check whether permission is actually needed. Before reaching for Form N510, confirm that your claim falls within one of the categories in CPR 6.32 or 6.33 where service out of the jurisdiction does not require the court's permission. If permission is required, you will need a different route involving an application to the court rather than this notice.
Identify the correct statement of truth. Form N510 contains several alternative statements covering different scenarios, including service within Scotland or Northern Ireland, service in other jurisdictions, and specific claims involving consumer or employment contracts. Read each statement carefully and select only the one that accurately describes the legal basis for your claim against this defendant.
Complete the form accurately and fully. Fill in the case details, the parties, and the relevant claim information, then tick the statement that applies and sign the statement of truth. Any inaccuracy at this stage can delay service or give the defendant grounds to challenge jurisdiction later, so accuracy matters far more than speed when completing the notice.
File Form N510 alongside the claim form. The notice must be filed with the court at the same time as the claim form it relates to. If the claim form is being issued without particulars of claim attached, include Form N1D as well so the defendant is given the statutory notice about when particulars will follow.
Arrange service on the defendant abroad. Once the court has issued the claim form, follow the rules for service out of the jurisdiction that apply to the country where the defendant is located. Different countries have different requirements under the Hague Service Convention or bilateral arrangements, and getting this wrong can invalidate service entirely.
Form N510 is required whenever a claimant wants to serve a claim form on a defendant outside England and Wales and the relevant Civil Procedure Rules allow that service without the court's permission. It is the claimant's formal notice to the court confirming the legal basis for service abroad. Without it, the court may not issue the claim form for service out of the jurisdiction, so filing it correctly at the outset is essential.
Q What is the difference between service with and without permission?
Some claims fall within categories where the rules automatically allow service abroad, such as claims against defendants domiciled elsewhere in the UK under the Civil Jurisdiction and Judgments Act 1982. In those cases Form N510 is used. Other claims require the claimant to apply to the court for permission first, supported by evidence, before any service can take place. The distinction turns on the legal nature of the claim and the defendant's location.
Q Do I file Form N510 with the claim form or separately?
Form N510 is filed at the same time as the claim form. Both documents go to the court together, and if the claim form is being served without particulars of claim, Form N1D should also be included in the bundle. Filing them separately or filing N510 after the claim form has been issued can create procedural problems, so treat them as a single package from the start.
Q Which statement of truth should I choose?
The correct statement depends on where the defendant is located and the legal basis for service. One statement covers defendants in Scotland or Northern Ireland under the Civil Jurisdiction and Judgments Act 1982. Another covers service in other jurisdictions under different enactments, including specific wording for consumer contracts within section 15B of that Act and for contracts of employment. Choose only the statement that genuinely matches your circumstances.
Q What happens if the information on Form N510 is incorrect?
An inaccurate Form N510 can have serious consequences. The defendant may challenge the court's jurisdiction, service may be set aside, and the claimant could be ordered to pay the costs of the jurisdictional dispute. Because the form carries a statement of truth, deliberately false information can also amount to contempt of court. This is why careful attention to the wording and the underlying legal basis is so important.
Q Is Form N510 used in family proceedings?
No, Form N510 is a civil procedure document governed by CPR 6.34. Family proceedings involving cross-border elements follow the Family Procedure Rules and use different forms and procedures. If your dispute involves divorce, financial remedies, or children matters with an international element, you will need to look at the equivalent family rules rather than CPR Part 6.
Q Can I complete Form N510 without a solicitor?
Nothing stops a litigant in person from completing Form N510, and the form itself is relatively short. However, the decision about whether the court's permission is required and which statement of truth applies involves genuinely technical questions about jurisdiction, domicile, and the nature of the claim. Many people find a short conversation with an experienced legal adviser helpful before committing to a particular route.
Serving proceedings abroad without permission depends on whether your claim fits within specific CPR categories, and getting it wrong can invalidate service. An experienced legal adviser can help you think through the route that fits your situation based on what you describe on the call.
✓Plain-English answers to your specific questions about service out of the jurisdiction
✓Practical perspective on whether Form N510 fits your circumstances
✓A clearer picture of what to watch out for in your case
Personal call · For information only · Independent advisers
Written & reviewed by
Brad Askew Solicitor (non-practising)
Brad is on the roll of solicitors of England & Wales but does not hold a practising certificate and does not provide legal advice. LegalDocuments.co.uk is not a law firm and does not provide regulated legal advice.
This article is for general information only. It is a tool to help you find your way — not legal advice, and not a substitute for speaking to a qualified adviser about your situation.