Serving court documents when you don't have an address: CPR Part 6, reasonable steps and alternative service

Where a claim form can be served on an individual

Part 6 of the Civil Procedure Rules governs service in England and Wales. Where a defendant has not given an address for service and no solicitor is instructed to accept it, rule 6.9 sets out where the claim form goes. For an individual, it is their usual or last known residence. For an individual sued in the name of a business, it is their usual or last known residence or the principal or last known place of business. A company is served at its principal office or at a place of business with a real connection to the claim, or at its registered office under the Companies Act 2006.

The permitted methods are in rule 6.3: personal service, first class post or document exchange, leaving the document at the permitted address, and fax or other electronic means where the recipient has agreed to accept them. "Last known residence" sounds generous. The catch is in the next paragraph of the rule.

The duty to take reasonable steps: rule 6.9(3) to (6)

Where you have reason to believe the last known residence is an address at which the defendant no longer lives, rule 6.9(3) requires you to take reasonable steps to ascertain their current address. If you find it, you must serve there. If you cannot, rule 6.9(4) requires you to consider whether there is an alternative place or method of service, and if there is, rule 6.9(5) requires an application under rule 6.15. Only where no current address and no alternative can be found does rule 6.9(6) allow you to fall back on the last known residence.

"Reason to believe" is a low bar: returned post, a process server's report, a neighbour's remark, a tenancy that ended, a business that closed. Once you have it the duty is engaged, and serving at the old address regardless invites an application to set aside whatever follows.

The rules do not list what reasonable steps are; the court looks at what a sensible claimant would do with the time available. In practice that means writing to the last address, using known phone numbers and email addresses, asking mutual contacts, checking the public companies register if the defendant trades, and instructing a tracing agent. A trace is the step most likely to answer the question, and the one a court will expect a professionally advised claimant to have taken.

Evidence: what the court wants to see

Whether you are proving good service later or applying for alternative service now, the court wants a witness statement that sets out the address you started with, why you believed the defendant had moved, each step you took and when, what each produced, and the address you propose to serve at or why you cannot find one.

A trace report belongs in that statement as an exhibit. Trace Bureau's report states the current registered UK address, a confidence rating of Confirmed, Probable or Possible, and the date, so it speaks to the position at the time you served rather than months later. A signed statement is provided on request. Where a trace fails, you receive a note of what was checked, which is itself evidence of reasonable steps. See serve court documents.

Alternative service under rule 6.15

Where there is good reason, rule 6.15(1) lets the court permit service by a method or at a place not otherwise allowed by Part 6, and rule 6.15(2) lets it declare that steps already taken to bring the claim form to the defendant's attention amount to good service. The application may be made without notice but must be supported by evidence. The order must specify the method or place of service, the date the claim form is deemed served, and the period for acknowledging, admitting or defending.

Courts have permitted service by email, by text message, through social media and messaging accounts shown to be in use, by leaving documents with a relative, and at a workplace. What persuades them is evidence that the method will actually reach the defendant and that the ordinary routes were properly tried. The older phrase "substituted service" is still used for the same thing. In exceptional circumstances rule 6.16 allows the court to dispense with service altogether, but that is rare.

Deemed service and the four-month window

A claim form served within the United Kingdom is deemed served on the second business day after the relevant step is completed, whether that is posting, delivery, handing over or electronic transmission (rule 6.14). Under rule 7.5 that step must be completed within four months of issue. Extensions under rule 7.6 are not granted lightly, particularly once the four months have passed, so if limitation is close the safe sequence is to issue first and trace and serve inside the window.

Other documents follow rule 6.26. First class post is deemed served on the second day after posting if that is a business day, otherwise the next business day. Personal service, delivery to the address and electronic transmission count on the day itself if done before 4.30pm on a business day, otherwise the next business day.

Process servers

Personal service means leaving the document with the individual, and a process server's certificate or statement of service is the strongest proof there is. It is also the method most wasted by a bad address, because an attendance at an empty house is charged whether or not anyone answers. Give the process server a traced address and its confidence rating, and if they report that the defendant has gone, that report is itself evidence for rule 6.9(3) and for an application under rule 6.15. Injunctions, orders with penal notices and statutory demands generally need personal service, so the same logic applies with more at stake.

Timing: hearings, limitation dates and urgent applications

Instruct the trace when you first have reason to believe the defendant has moved, not the week before the hearing. Trace Bureau's Priority trace is £195, delivered within 24 hours and the same working day when instructed before noon; Express is £150 within 48 hours; Standard is £100 in 3 to 5 working days. Firms instructing ten or more a month pay £85 per trace on a monthly invoice through a firm account. Nothing is charged unless a current registered address is delivered.

Scotland and Northern Ireland

The Civil Procedure Rules apply in England and Wales. Scotland has its own rules on citation and service, generally through sheriff officers or recorded delivery, and Northern Ireland its own court rules. The practical requirement is the same everywhere: a current address, and evidence of how you established it. Trace Bureau covers the whole of the United Kingdom.

When to instruct a professional trace

The moment you have reason to believe the defendant has moved. Before sending a process server. Before applying under rule 6.15, so the application shows the step was taken. Before requesting default judgment on an address you doubt. And whenever a limitation date or hearing leaves no room for a second attempt. Nothing here is legal advice, and a solicitor should advise on your own proceedings. Tracing a debtor before issuing a claim covers the wider sequence for creditors, and instructing a trace takes about five minutes.