Acknowledgment of service

Served with a claim form and not ready to file a full defence yet? An acknowledgment of service buys you an extra two weeks — but only if you file it within the first 14 days.

Is an acknowledgment of service the same as a defence?

No. An acknowledgment of service (form N9) simply tells the court and the claimant that you intend to respond, and buys you extra time. It is not itself a response to the allegations. You still need to file a defence, an admission, or a dispute of the court's jurisdiction within the extended deadline.

What happens if I do nothing at all?

If you neither acknowledge service nor file a defence within 14 days, the claimant can apply for default judgment against you without a hearing. A default judgment counts as a County Court Judgment and can affect your credit file, so silence is the worst option available.

Can I file a defence straight away instead of acknowledging service first?

Yes. Filing an acknowledgment of service is optional — if you already know how you want to respond and can meet the 14-day deadline, you can file your defence (or admission) directly instead, without bothering with the N9 first.

Does acknowledging service mean I accept the court has jurisdiction over me?

Filing an acknowledgment of service is treated as accepting the court's jurisdiction unless you also file an application disputing it within 14 days of filing the acknowledgment. If you think the claim was issued in the wrong court, or you dispute that the English courts have jurisdiction at all, act within that separate 14-day window.

How do I actually file form N9?

The response pack sent with the claim form includes form N9, together with N9A (admission) and N9B (defence). You complete the relevant section and return it to the court named on the claim form, either by post or, for many claims, through the online Money Claim Online service.

Can I still negotiate a settlement after acknowledging service?

Yes. Acknowledging service does not stop you negotiating directly with the claimant or through mediation while the extended defence deadline runs. Many small claims settle during this window, before a defence is ever filed.

Does the 14-day deadline include weekends and bank holidays?

Yes — the 14 days run in calendar days, not working days, so weekends and bank holidays count towards the deadline. Always check the actual date the claim form is deemed served, which is usually a set number of days after it was posted, rather than the date you happen to open the envelope.

Why file an acknowledgment instead of a defence straight away

When you are served with a claim form, the clock starts immediately — you have just

to respond before the claimant can ask for default judgment. Fourteen days is not always enough time to gather evidence, take advice on the wording of a defence, or simply work out whether you want to fight the claim, admit it, or negotiate.

Filing an acknowledgment of service solves that problem without committing you to anything. It is a single tick-box form — you are not admitting the claim, and you are not yet setting out your defence. All it does is put the court and the claimant on notice that you intend to engage with the case, in exchange for a further 14 days to actually file your response.

What happens if you miss the deadline, or do nothing

If neither an acknowledgment of service nor a defence is filed within 14 days of service, the claimant is entitled to apply for

— a judgment entered without any hearing, simply because you failed to respond in time. A default judgment carries the same weight as one made after a full trial, and it is recorded as a County Court Judgment, which can affect your ability to get credit for up to six years.

It is possible to apply to have a default judgment set aside, but that means going back to court, explaining the delay, and showing you have a real prospect of successfully defending the claim — a much harder position than simply filing the N9 on time would have been.

Your options once you have filed the acknowledgment

Filing form N9 buys time, but the extended 28-day deadline still needs to be met with one of the substantive responses in the response pack: admitting the whole claim (N9A), admitting part of it, or filing a full defence and, if relevant, a counterclaim. If you intend to argue the English courts should not be hearing the claim at all — for example because of where a contract was made or performed — you must apply to dispute jurisdiction within 14 days of filing the acknowledgment itself, not the later 28-day defence deadline.

Many defendants also use the extra fortnight to negotiate directly with the claimant or explore mediation through the court's free small claims mediation service — settling during this window avoids the need to file a defence, or a hearing, at all.

Claims issued through Money Claim Online

Many small claims are issued through the Money Claim Online (MCOL) service rather than on paper, and the same 14-day and 28-day deadlines apply either way. If you were served electronically through MCOL, you can acknowledge service, admit, or defend through the same online account, which automatically records the date you responded — useful evidence if there is ever a dispute about whether you acted in time.

Whichever route the claim was issued through, the underlying rule is the same: an acknowledgment filed within 14 days of service extends your defence deadline to 28 days, and the clock runs from the date the claim form is deemed served, not the date you happen to open it.

A tradesperson is served with a claim form for £4,200, alleging an unpaid invoice for building work. They dispute the amount but need time to pull together photographs, messages and an independent quote to support their position. On day 12 after service, they file form N9, acknowledging service. This extends their defence deadline from day 14 to day 28. They use the extra two weeks to prepare a full written defence and file it on day 26, comfortably inside the extended window.

Civil Procedure Rules, Part 10

Civil Procedure Rules, Part 15

Guidance for defendants replying to the claim form (N1C)

Acknowledgment of Service — Small Claims Glossary

What an acknowledgment of service (form N9) is, how it extends your deadline to file a defence from 14 to 28 days, and what happens if you miss it.