Skip to main content
Back to blog

A Mareva Injunction Freezes the Money — and Makes You Liable Too

Trial AI Legal TeamSeptember 30, 202611 min read

Applies in Hong Kong SAR

The order is quick. The undertaking lasts. TRIAL AI · HONG KONG · FREEZING ORDER The order is quick. The undertaking lasts. Only you are heard at first. The defendant is heard at the return date. You act Both sides Court 1 Ex parte On affidavit full disclosure 2 Order made Up to HK$X you undertake 3 Serve Banks notified then defendant 4 Disclosure Defendant lists assets, on oath 5 Return date Continue, vary or discharge 6 Trial Claim fails? pay their loss If the court later finds the order caused the defendant loss, the applicant complies with any order to compensate. Sources: Cap. 4 s.21L; Cap. 4A Order 29 r.1; Practice Direction 11.2 standard form; CLIC.
A freezing order is granted in one short hearing at which only you speak. The undertaking as to damages you give there stays live until the claim is decided, and is called on if the order proves wrong.

Direct answer: a Mareva injunction is a Hong Kong court order that stops a defendant from moving or spending assets, up to a stated value, before the claim against them is decided. The Court of First Instance can grant one under section 21L of the High Court Ordinance (Cap. 4), and the District Court, which hears claims up to HK$3,000,000, under section 52B of Cap. 336. You must show a good arguable case, assets in Hong Kong and a real risk of dissipation, usually on an urgent application made without notice to the debtor. The price is a promise: under the Judiciary's standard form, you undertake to pay the defendant any loss the order causes if the court later finds it should not have been made. That undertaking, not the court fee, is what makes the decision.

What is a Mareva injunction?

Defined term: a Mareva injunction, also called a freezing order, is an interlocutory injunction that restrains a party from removing assets from Hong Kong or otherwise dealing with them. It does not transfer anything to you and it does not decide the claim. It keeps the defendant's assets in place so that a judgment you later obtain has something to be enforced against.

The statutory footing is short. Section 21L(1) of the High Court Ordinance lets the Court of First Instance grant an injunction in all cases where it appears just or convenient to do so, and section 21L(3) confirms that an injunction restraining a party from removing or dealing with assets located in Hong Kong may be granted whether or not that party is domiciled, resident or present here. Section 52B(3) of the District Court Ordinance gives the District Court the same power within its own jurisdiction.

Which Hong Kong court can freeze assets for a money claim
  1. HK$75,000 or lessSmall Claims Tribunal

    A tribunal without lawyers. The statutory power to freeze assets in Cap. 4 and Cap. 336 belongs to the courts, not to the tribunal.

  2. More than HK$75,000, up to HK$3,000,000District Court

    May grant an interlocutory injunction over assets in Hong Kong under section 52B(3) of Cap. 336.

  3. More than HK$3,000,000Court of First Instance

    Grants Mareva injunctions under section 21L of Cap. 4, and under section 21M in aid of proceedings brought outside Hong Kong.

Money-claim limits as published by the Judiciary for contract and tort claims.

Section 21M adds a cross-border tool. The Court of First Instance may grant interim relief, expressly including a Mareva-type injunction, in aid of proceedings brought outside Hong Kong that could produce a judgment enforceable here, even where there is no Hong Kong action at all. For a debtor with assets in Hong Kong and a dispute being fought elsewhere, that is often the only route.

What must I prove to get one?

CLIC, the Community Legal Information Centre run by the University of Hong Kong, sets out four requirements. Each one needs evidence on affidavit, not assertion. The table pairs each test with the kind of evidence applicants typically put forward; the examples are illustrative, and the court weighs the whole picture.

The four requirements for a Mareva injunction in Hong Kong
RequirementWhat it meansIllustrative evidence
Good arguable caseYour substantive claim against the defendant is properly arguable on the evidenceSigned contract, unpaid invoices, bank records of the money paid, written admissions
Assets in Hong KongThe defendant has assets within the jurisdiction that the order can bite onKnown bank accounts, a land search showing property, company shareholdings
Real risk of dissipationWithout the order, assets are likely to be dissipated or hidden before judgmentRecent unexplained transfers, sale of property after the dispute began, steps to deregister a company, a history of dishonesty
Balance of convenienceIt is just and convenient to grant the order, weighing the harm to each sideThe size of the claim against the disruption to the defendant's business

Requirements as summarised by CLIC. The legal test for each is developed in case law; this table is general information, not advice on whether your evidence is enough.

Of the four, real risk of dissipation is where most applications stand or fall. A debtor who simply has not paid is not, on that fact alone, a debtor who is about to hide their assets. What persuades a court is conduct pointing to the future: money moving offshore after a demand, a flat sold shortly after the dispute began, a company being wound down or struck off. If your evidence is only the debt, the order is unlikely.

Why is the debtor not told about the application?

Because warning them would defeat the purpose. Order 29, rule 1(2) of the Rules of the High Court (Cap. 4A) allows a plaintiff, where the case is one of urgency, to apply ex parte on affidavit, meaning without notice to the other side. Rule 1(3) goes further: in an urgent case the injunction may be sought before the writ is issued, on terms that the writ is issued afterwards.

The price of a hearing at which only you speak is a duty of full and frank disclosure. CLIC states that the plaintiff must disclose all the important matters within their knowledge, including the points that favour the defendant. The Judiciary's Practice Direction 11.2 adds that any material departure from its standard form of order must be drawn to the judge's attention, and one that is not risks the injunction being discharged at a later hearing.

What am I promising if the court grants it?

The Judiciary's standard form of Mareva order, appended to Practice Direction 11.2 and in use since 3 January 2017, lists the applicant's undertakings in a schedule. The first is the undertaking as to damages: if the court later finds that the order caused the defendant loss and that the defendant should be compensated, the plaintiff will comply with any order the court makes. It is sometimes called the cross-undertaking.

The undertaking is not a formality. If your claim fails, or the order is discharged for non-disclosure, the defendant can ask the court to assess the loss the freeze caused, such as a missed transaction, a cancelled facility or a business that could not pay its suppliers, and to order you to pay it.

Undertakings in the Judiciary's standard Mareva order (Practice Direction 11.2)
UndertakingWhat you commit to
DamagesComply with any order to compensate the defendant, or any other party, for loss the order has caused
Bank guarantee (where ordered)Provide a guarantee from a Hong Kong bank in the defendant's favour, by a set date, for a sum the court fills in
Issue and serve the writAs soon as practicable, issue (if not yet issued) and serve the writ with the order
Swear the evidenceSwear and file an affidavit confirming the evidence put before the judge
Return-date papersServe the summons for the return date with the affidavits, exhibits and skeleton argument
Third partiesGive a copy of the order to anyone notified of it, and pay their reasonable costs of complying
When it endsTell everyone notified if the order ceases to have effect

Summarised from the schedule of undertakings in the standard form. The court may add, remove or vary undertakings in a particular case, and optional clauses cover proceedings outside Hong Kong.

The optional bank guarantee is how a court fortifies the undertaking when it doubts that the applicant could pay. A company with thin accounts, or an individual applicant living abroad, should expect to be asked. Arranging a guarantee ties up your own money or credit for as long as the order lasts.

What happens after the order is made?

An ex parte order is a holding measure. The standard form keeps it in force only until a return date, when both sides can be heard. The sequence below follows the standard form and Order 29.

The life of a Hong Kong Mareva injunction, in order

  1. Ex parte hearing. You apply without notice, on affidavit, and the judge grants the order with your undertakings attached.
  2. Notify the banks. Banks and others holding the defendant's money are given a copy. Once notified, it is a contempt for anyone knowingly to assist in or permit a breach.
  3. Serve the defendant with the order, your affidavits and a summons for the return date, as soon as practicable.
  4. Asset disclosure. The defendant must tell you in writing of all assets above the value stated in the order, and confirm it on affidavit within the number of days the order sets.
  5. Return date. The defendant can argue the order should be discharged or varied. The defendant, or anyone notified, may also apply to vary or discharge it at any time.
  6. Trial or settlement. If the order continues, it usually lasts until judgment. If the claim fails, the defendant can pursue your undertaking as to damages.

What does the freeze actually stop?

A Hong Kong Mareva order is normally limited to the defendant's assets up to the value stated in the order. It freezes the defendant's dealing with assets, not the defendant's whole life.

  • Ordinary living expenses. The standard form lets an individual defendant spend a weekly sum the court fills in.
  • Ordinary and proper business expenses. A trading defendant can keep paying staff and suppliers, again within a stated weekly sum.
  • Legal advice and representation. The defendant may spend a stated or reasonable sum defending the claim, so the order does not silence them.
  • Bank set-off. A bank may still exercise a right of set-off for a facility it granted before it was notified of the order.
  • Worldwide reach. A separate standard form freezes assets within or outside Hong Kong, but it does not bind people abroad until a court there declares it enforceable, unless they are the defendant's officers or agents or are otherwise within the Hong Kong court's jurisdiction.
  • Penal notice. A defendant who disobeys may be held in contempt of court and may be sent to prison, fined or have assets seized; so may directors of a company defendant.

How much does a Mareva injunction cost?

No official source publishes what the legal work typically costs, so this article does not print a figure. What can be stated is where the money goes. The court fee is the smallest line: sealing a writ in the Court of First Instance costs HK$1,045 under the High Court Fees Rules (Cap. 4D). The rest is solicitor and counsel time on an urgent affidavit and hearing, the return-date hearing, third parties' compliance costs, any bank guarantee, and the contingent liability on the undertaking.

Where the money goes in a Mareva application
ItemRuleFixed or open-ended?
Writ of summons (Court of First Instance)Cap. 4D, Schedule, item 1Fixed: HK$1,045
Urgent affidavit and ex parte hearingCap. 4A, Order 29, rule 1(2)Open-ended: professional time, often at short notice
Return-date hearingStandard form, Practice Direction 11.2Open-ended: contested hearing if the defendant resists
Banks' and other third parties' costsStandard form undertakingOpen-ended: their reasonable compliance costs
Bank guarantee (fortification)Standard form undertaking, where orderedTies up a sum the court sets
Defendant's losses if the order was wrongUndertaking as to damagesOpen-ended and contingent: assessed after the event

Court fee from the High Court Fees Rules (Cap. 4D) in force in 2026. Fees change; confirm with the Registry before filing.

CLIC is blunt about proportion: it is not rational to apply if the amount or value of the assets in dispute is small. The test is not whether you can pay for the hearing. It is whether the claim is large enough, and the dissipation evidence strong enough, to justify an open-ended liability if the order turns out to have been wrong.

Are there cheaper alternatives to a freezing order?

Yes, and some are aimed at a narrower risk. Hong Kong law has three tools that work before judgment and two that work after it.

Other ways to secure a Hong Kong money claim
ToolWhenWhat it doesThe catch
Prohibition order (Cap. 4, s.21B; Order 44A)Before or after judgmentStops the debtor leaving Hong Kong; applied for ex parteLapses after 1 month, extendable to 3 months in total; the court may award compensation if it was sought on insufficient grounds
Attachment before judgment (Order 44A, rules 7 and 8)Before judgmentThe court calls on the defendant to give security, or attaches specified propertyYou must show the defendant is about to dispose of or remove property with intent to obstruct execution
Summary judgment (Order 14)Early in the actionJudgment without a trial where there is no real defenceSpeeds the claim rather than securing assets
Garnishee order (Order 49)After judgment of at least HK$1,000Orders a bank or other third party that owes the debtor to pay you insteadOnly reaches debts owed to the debtor when the order is made
Charging order (Order 50)After judgmentCharges the debtor's land or shares with the judgment debtSecures the debt; a sale needs further steps

Rules of the High Court (Cap. 4A) and High Court Ordinance (Cap. 4).

Should I apply for a Mareva injunction?

  • Is the claim large? Weigh the open-ended cost and the undertaking against the sum at stake, as CLIC advises.
  • Is dissipation provable, not just feared? Recent transfers, asset sales or deregistration steps, dated and documented, are the heart of the application.
  • Do you know where the assets are? An order over unidentified assets is hard to police; bank accounts and land you can name make it work.
  • Can you stand behind the undertaking? If the defendant would suffer real loss from a freeze and your claim is uncertain, the undertaking is a live risk. Be ready to show the court you can meet it, or to give a bank guarantee.
  • Would a narrower order do? If the fear is that the debtor will leave rather than move money, a prohibition order may be enough.
  • Is there a disclosure problem? List every fact that helps the defendant before the hearing. If you cannot disclose it and still win, do not apply.

A Mareva application is prepared in a day and tested at the return date, often by an opponent's counsel reading your affidavit for omissions. Trial AI lets you rehearse that test in advance: the four requirements argued from your own documents, the non-disclosure points the other side will raise, and the questions a judge asks about the undertaking. It is practice, not legal advice, and an urgent freezing application in Hong Kong is a job for a solicitor.

Sources: High Court Ordinance (Cap. 4), ss.21B (prohibition order), 21L (injunctions, including over assets of a party not in Hong Kong) and 21M (interim relief in aid of proceedings outside Hong Kong), Rules of the High Court (Cap. 4A), Orders 14, 29 (ex parte application in urgency, before the writ), 44A (prohibition order, attachment before judgment), 49 (garnishee) and 50 (charging orders), District Court Ordinance (Cap. 336), s.52B(3), High Court Fees Rules (Cap. 4D), Schedule, item 1 (HK$1,045 on sealing a writ), Judiciary Practice Direction 11.2, Mareva Injunctions and Anton Piller Orders, with standard forms (effective 3 January 2017), CLIC — What can the plaintiff do if the defendant is likely to dispose of his assets improperly before trial?, Judiciary — The District Court: civil jurisdiction up to HK$3,000,000, Judiciary — Small Claims Tribunal: jurisdiction up to HK$75,000. Statutory provisions, rules and fees are those published on Hong Kong e-Legislation, by the Judiciary and by CLIC at the time of writing. No official figure exists for the legal cost of a Mareva application, so none is given. Fees and practice change, so confirm them before you file. This is general information, not legal advice.